Jobs at Djinni

Our client is a US-market startup building an entertainment app for iPhone. The app combines casual games, short-form video, and social features, and players can win real-life prizes. The games have a bright, cartoon-style look, with spin and scratch mechanics, word games, and regularly updated themed content.
 

They’re looking for a designer who creates game art and can also build UX flows in Figma. Art is the main focus of this role, and you’ll create assets quickly to keep up with the development timeline.
 

What you’ll do

• Create bright, cartoon-style art for games and app features: icons, rewards, currencies, game items, characters, and backgrounds
• Design game logos, buttons, and in-game UI elements
• Create visuals for win screens and prize reveals
• Prepare themed versions of game screens, such as seasonal updates
• Build UX flows in Figma
• Work directly with the development team
   

What we’re looking for

• 3+ years of hands-on art experience in gaming or casino apps
• A portfolio with colorful, polished cartoon or slot-style game art you created for real products
• Hands-on UX experience, including building flows in Figma
• Ability to produce quality assets quickly and meet deadlines
• English fluent 

Nice to have

• Experience using AI tools to create art

Format: Part-time, remote

We are seeking a highly qualified Customer Support Team Lead to join our fast‑growing iGaming startup. Our team combines deep industry expertise, many years of hands‑on experience, and a strong professional network - making us ambitious, highly capable, and ready to scale.

Key Responsibilities:

• Recruiting, onboarding, mentoring, and developing the support team.
• Developing and implementing processes, procedures, and quality standards.
• Monitoring team performance and ensuring adherence to key metrics (CSAT, response time, etc.).
• Managing support tools, and other platforms.
• Ensuring high customer service standards in a 24/7 dynamic environment.
• Collaborating with other departments to enhance the customer experience.
• Improving communication processes with clients Increased response speed and quality.
• Implementation of a service desk and control of task processing.

• Creation of reports and analytics for the department.

   

Requirements:

• Proven experience in a similar role within the iGaming industry.
• Strong understanding of Tier‑1 market specifics.
• Excellent leadership skills and experience managing teams.
• Outstanding communication and organizational abilities.
• Ability to analyze data and deliver detailed reports.
• English proficiency at B1+ level.

We offer:

• Work in an international Tier‑1 iGaming environment.
• Remote format with flexible schedule.
• Competitive compensation and performance bonuses.
• Opportunity to shape global marketing strategy and scale a Tier‑1 product.
• Collaborative, multicultural team atmosphere.

We are looking for an experienced VIP Team Lead to shape our high-value customer strategy, scale VIP operations, and lead a dedicated team at our fast-growing iGaming startup. Founded by industry professionals with deep domain expertise and strong networks.

Responsibilities:

• Strategy & Revenue: Define VIP tiers and reward programs; partner with CRM/Marketing to launch targeted campaigns that maximize LTV and hit revenue goals.

• Client Operations: Oversee white-glove service standards, resolve complex escalations, and drive retention using data-driven insights and promo optimization.

• Team Leadership: Recruit talent, establish clear KPIs and career paths, and build an accountable, results-driven team.

• Cross-Functional Collaboration: Bridge VIP operations with Tech and Marketing, run market benchmarks, and deliver long-term growth initiatives.

Required Experience:

• Proven track record in a similar leadership role within the iGaming sector.

• Strong understanding of Tier-1 iGaming markets and customer dynamics.

• Exceptional team management, organizational, and strategic planning skills.

• Ability to analyze metrics, build reports, and make data-informed decisions.

• English proficiency at B1+ or higher.

Why Join:

• Work in an international Tier‑1 iGaming environment.

• Remote format with flexible schedule.

• Competitive compensation and performance bonuses.

• Opportunity to shape global marketing strategy and scale a Tier‑1 product.

Job Description

• At least 5+ years of software development experience with 1 to 2 years in cloud development
• Java, OOP, Concurrency, Design Patterns, Dependency Injection
• Junit (or other unit testing framework), Mockito
• Distributed Patterns (Caching, Transactions, Message queues, Partitioning, Sharding)
• Scaling Application under load (Partitioning, Sharding)
• Microservices in-depth (scaling, transactions, session handling)
• Experience with high traffic applications and IO throughput
• Solid experience with Relational Databases (e.g., SQL and JDBC) and Non-Relational Databases (e.g., Cassandra, etc)
• AWS (e.g., ECS, S3, Lambdas, SQS, SDK)
• Solid experience with REST APIs
• Great communication skills are a must

Nice to have:

• Expertise in Kafka
• Good understanding of Distributed caching solutions like Hazelcast
• Working experience with distributed frameworks
• Good understanding of statistical code analysis and code quality measurement tools like Sonar, Jacoco, etc.
• Good understanding of CI/CD concepts with experience in end-to-end automation
• Experience with Build Tools (Jenkins, Maven, Gradle, Docker), version control (Git)
• The application server/container configuration management and application deployment (Tomcat, Jboss, etc)
  Experience with Production and Performance Troubleshooting Tools (e.g., ELK, Splunk, Wireshark, jConsole, HeapAnalyzer, jMeter, Java profiler (e.g., VisualVM, JProfiler, YourKit))
• Performance Benchmarking

Job Responsibilities

• Cross-platform application development
• Work in an agile development environment and participate in sprint activities to plan and produce high-quality deliverables
• Own deliverables and be responsible for their quality
• Create modern, efficient, elegant, and scalable code
• Cloud software development in AWS infrastructure
• Communication with the client stakeholders
• Build analytics dashboards for monitoring for high availability
• Review architectural solutions and recommend improvements for non-functional requirements
•  

Department/Project Description

The client is the worldwide manufacturer of smart beds, which increase the overall quality of sleep. The solution senses and automatically adjusts the comfort level:

Tracking personal sleep data during the night

Individual comfort and temperature balancing

Comfort adjustability on each side of the bed

The project is related to developing the cutting-edge sensor technology and data processing algorithms.

The key project deliverables - systems that bridge the gap between several domains:

Peripheral device control

Device drivers

Hardware sequencing safety systems monitoring, and real-time data processing

We are looking for a Middle iOS Engineer (Lviv only) to join our team! Our client is the world’s acknowledged market leader in wireless communication systems for motorcyclists. 

Responsibilities:

• Design, build, and maintain efficient, reusable, and reliable code.
• Identify UI problems and bugs and devise elegant solutions.
• Contribute to technical discussions and propose implementation approaches for new features. 
• Help maintain code quality.
• Refactor existing code.
• Collaborate with the team to deliver features successfully. 
• Suggest technical and functional improvements to add value to the product; full involvement in Product Development.
• Participate in code reviews and technical discussions. 
• Integrate AI tools into daily development workflows to streamline coding and problem-solving.

Requirements:

• 3+ years of experience in software development for iOS
• Good knowledge of the Swift programming language
• Understanding of OOP and iOS design patterns (MVVM & Coordinator)
• Experience with Xcode and the ability to use debugging and profiling tools.
• Experience with BLE and OTA would be an advantage 
• Experience with SwiftUI
• Familiarity with UIKit and Core Bluetooth
• Experience with dependency managers (CocoaPods, SPM)
• Understanding of concurrency, experience with GCD and async programming with Combine
• Proficient with REST API
• Proficient understanding of Git
• Familiarity with continuous integration
• Experience with application distribution
• Understanding of Apple’s HIG
• Experience with AI-powered development tools (e.g., Cursor, Claude Code) would be a plus
• Upper Intermediate knowledge of the English language
• Willingness to visit the office when needed.

The ideal candidate is also:

• Has an Agile mindset and is a good team player;
• Possesses knowledge of computer science fundamentals which  prevents him/her from reinventing the wheel;
• Is pragmatic: gets things done, can find a creative compromise between an ideal technical solution and actual client needs;
• Understands the value of testing, quality, continuous integration, source control, and code reviews;
• Can analyze, plan, and estimate requirements as well as identify risks involved and provide solutions to them.

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

Who we are

Blackbird Lab is a software development company. While we practice an international working culture, we are proud representatives of Ukrainian values and traditions. We are a team of 90+ energetic, curious, smart, and open-to-new-challenges tech professionals who prefer efficient async communication, flexible working hours, a co-working office model, etc.

Having worked in this field for 7+ years, we have managed to accumulate expertise and bring value to a number of clients. We cooperate with US and Canadian product companies of different sizes, from small startups to established products, in close, trusted relationships.

All team members, including management, have an engineering background. The process is always efficient when participants speak the same language and have a similar approach based on technical principles. It is much easier to make decisions and introduce new features in a team with engineering at heart. It is the technical DNA that lets us build high-quality products that make our customers’ users’ lives easier.

Position & client

Our client is a North American fintech company offering a cloud-based accounts payable (AP) and accounts receivable (AR) automation platform for small and mid-sized businesses, accounting firms and finance teams. The platform helps customers automate bill payments, invoicing and collections, send international payments, and sync data two-way with popular accounting software.

The company’s marketing website, built on HubSpot, is a key lead-generation channel. It includes product and feature pages, integration pages, industry solution pages, a blog, guides, case studies, pricing, and demo-booking and free-trial signup flows.

The aim of the project is to support and develop the HubSpot-based marketing website and prepare it for multilingual content. Translations will be managed through Crowdin.

(2–4-Month Contract / Part-Time)

Stack of the project:

• TypeScript
• ReactJS (functional components, hooks, JSX) with experience building reusable components
• HubSpot CMS Hub: themes, custom modules, templates, drag-and-drop sections, global partials
• HubL (HubSpot templating language), HTML5, CSS/SCSS, JavaScript (ES6+)
• HubSpot developer tooling: HubSpot CLI, local development, Design Manager, Git-based workflow
• HubSpot multi-language content: language variants, language switcher, hreflang
• HubSpot forms, CTAs, and basic knowledge of workflows and tracking (HubSpot Marketing Hub)

Responsibilities

• Develop and maintain custom HubSpot themes, modules, and page templates
• Set up the multilingual structure of the website (language variants, URL structure, language switcher, hreflang, localized forms and CTAs)
• Configure and maintain the Crowdin–HubSpot integration, and make sure translated content syncs correctly
• Hands-on experience using AI coding assistants in daily work (e.g., Claude Code, Cursor, GitHub Copilot, ChatGPT) to speed up development, debugging, refactoring and code review
• Make sure modules are flexible and reusable so marketers can build pages without developer help
• Optimize site performance, SEO, accessibility, and cross-browser/mobile responsiveness
• Implement and QA forms, tracking scripts, and integrations
• Troubleshoot bugs, review pages before release, and maintain technical documentation

Requirements

• 3+ years of hands-on experience with HubSpot CMS development
• Strong portfolio of HubSpot sites (please share examples), ideally including multilingual ones
• Experience with a localization workflow (Crowdin or a similar TMS) is a strong plus
• Solid understanding of web fundamentals: semantic HTML, responsive design, and clean, maintainable code
• Ability to work independently and communicate clearly in English
• Attention to detail and a pragmatic, deadline-driven approach
• Experience working with marketing teams, ideally in a SaaS or fintech environment

Nice to have:

• Crowdin: integration with HubSpot (via the Crowdin–HubSpot app or API), translation workflow management
• Experience with HubSpot CMS React (React-based modules and themes, islands architecture)
• Node.js and npm tooling (bundlers, build scripts, linting/formatting)
• Experience with component libraries or design systems
• Working with REST APIs, and HubSpot APIs in particular
• HubSpot CMS for Developers certification (current or previously held)
• HubSpot Content Hub (CMS) for Marketers certification
• Other relevant HubSpot Academy certifications (e.g., Marketing Software)

Team setup & processes

Technical Project Manager (Ukraine)

HubSpot Developer - open position

Senior Frontend Engineer (Ukraine)

Interview process

HR interview (30 mins)

Technical interview (90 min)

Benefits

We are all for the self-development of each team member. As a part of our team, you’ll be supported in your professional growth, work on Macs, receive certifications, and visit conferences. On top of that, you will enjoy an attractive social package, including

• Сompetitive monthly compensation
• Flexible working schedule
• Working remotely
• 18 paid vacation working days
• Paid sick leave (with 5 undocumented days per year)
• Health support with medical insurance or sports programs
• English lessons, sports activities, and charity events
• Full support of Private Entrepreneur reporting services (ФОП)

At UAI Labs, we’re building the next generation of intelligent automation — tools and solutions that help companies work smarter, faster, and more creatively. We take on the repetitive, manual, “why-is-this-still-done-like-this?” work so people can focus on skills that matter. 

As a growing startup, we move fast, experiment often, and love turning ambitious ideas into real products. You’ll learn modern automation practices, work with emerging tech, and contribute to meaningful projects from day one. Here, curiosity is an advantage, and creativity is part of the job description. 

If you want to grow quickly, solve real problems, and shape the future of automation, you’ll feel right at home. 

Don’t meet 100% of the requirements? No problem. If you’re excited by what we’re building, let’s talk. 

About the Role 

We are looking for a highly organised, analytical, and people-focused Business Analyst to join our delivery team. In this role, you will work closely with clients to understand their processes, uncover bottlenecks, translate business needs into clear requirements, and support the design of automation and AI solutions. 

You’ll play a key role in stitching together the business perspective, technical approach, and delivery roadmap, ensuring our solutions actually solve real problems. 

Responsibilities 

• Run discovery workshops to understand current processes, pain points, and opportunities 
• Document AS-IS and TO-BE processes with clarity and structure 
• Translate business requirements into functional specifications for developers 
• Support prioritisation and help shape automation roadmaps 
• Gather and validate data required for business cases 
• Collaborate closely with developers during solution design 
• Support UAT planning, execution, and defect triage 
• Create process-definition documents (PDDs), requirement specs, and user guides 
• Communicate with stakeholders at all levels to ensure alignment 

• Contribute to continuous improvement of delivery methods and documentation standards 

   

Required Skills & Qualifications 

• Bachelor’s degree in business, Engineering, Information Systems, or related field 
• 2-4 years of experience in business analysis, consulting, operations, or similar roles 
• Strong skills in mapping processes and identifying inefficiencies 
• Experience gathering and documenting requirements 
• Excellent communication and stakeholder management abilities 
• Strong analytical thinking and attention to detail 
• Ability to work in fast-paced, ambiguous environments 
• Previous experience in consulting or working directly with clients 

• Comfortable communicating in English, both spoken and written 

   

Preferred Qualifications 

• Experience with data analysis, automation, RPA, Process Mining, or AI-led transformation projects 
• Understanding of basic technical concepts (APIs, data flows, system integrations) 
• Experience working with tools like Miro, Visio, Lucidchart, or process mining platforms 

• Exposure to software development lifecycle (Agile/Scrum preferred) 

   

Who You Are 

• A clear communicator who can simplify complexity 
• Curious, structured, and naturally analytical 
• Comfortable engaging with both technical and non-technical teams 
• Someone who loves solving problems and asking “why does it work like that?” 

• A team player who takes ownership and drives work forward

   

UAI Labs is an equal opportunity employer, and we encourage qualified applicants of every background, ability, and life experience to contact us about appropriate employment opportunities. 

At UAI Labs, we build intelligent automation and AI solutions that help companies work smarter, faster, and at scale. We partner with Private Equity firms and their portfolio companies to fix broken and inefficient processes using a practical mix of RPA, AI and process redesign. With the focus on real business impact, not quick fixes. As a fast-growing startup, we work on diverse, high-impact challenges and turn ambitious ideas into solutions that truly scale.

About the Role
 

As a UiPath Developer, you design, build, and run automation solutions that solve real business problems across our clients’ operations. We hire at medium and senior level; scope and rate follow experience. Business Analysts lead discovery and requirements gathering; you translate documented processes into robust, maintainable workflows and own them in production.

• Design solutions: Analyze business processes and recommend the right automation approach for each use case: RPA, API integration, or a hybrid.
• Build and integrate: Develop and deploy automations in UiPath (Studio, Orchestrator, Robots), with supporting work in Python, C#, or VB.NET, and REST API integrations to third-party systems.
• Release and run: Own your automations end to end in production: monitoring, exception handling, incident resolution, maintenance, and performance optimization.

Skills and Qualifications
 

• 2+ years (medium) or 5+ years (senior) of hands-on RPA development experience
• Strong UiPath proficiency: Studio, Orchestrator, and REFramework are required
• You have taken at least one automation from PDD to stable production
• Working knowledge of Python, C#, or VB.NET for custom components and integrations
• Practical experience with REST APIs, JSON, and common integration patterns
• Familiarity with PDD/SDD documentation and structured development lifecycles
• Understanding of exception handling, logging, and production support practices

• Professional English communication skills, spoken and written

  
  At Senior Level, Additionally

• Incident ownership and structured client communication during hypercare and run phases

• Reviewing solution designs and mentoring other developers
   

  Nice to Have

• UiPath Certified Professional (Automation Developer Associate or Automation Developer Professional)
• Blue Prism or Automation Anywhere background: strong developers on these platforms who want to cross-train to UiPath are explicitly welcome to apply
• Experience with LLM APIs (for example Claude or OpenAI), IDP, or agentic automation components
• Exposure to process mining or Power Automate
   

Our Stack and How We Work
 

• UiPath: Studio, Orchestrator, REFramework, Document Understanding (IDP), Agentic automation
• Structured delivery lifecycle: PDD (Process Definition Document), SDD (Solution Design Document), code review, and defined quality gates within a build-release-run delivery model
• Remote-first, distributed team across Europe
• Direct collaboration with client stakeholders in Europe

Who You Are

• A detail-oriented builder who writes clean, reusable, and well-documented automations
• You take ownership from requirements handoff through to stable production runs
• Comfortable troubleshooting issues independently and escalating clearly when needed
• You collaborate effectively with Business Analysts and business stakeholders to get the details right

• Curious and eager to grow into broader automation and AI engineering work over time

   

  Why This Role Is Different

   

• End-to-end ownership: You take automations from design through build, release, and run and you see the impact of your work with the client firsthand.
• A real AI growth path: Our delivery increasingly combines UiPath with LLM APIs, Intelligent Document Processing (IDP), and agentic components. You grow into AI engineering work instead of staying boxed into classic RPA.
   

Practical Details

• Remote, B2B contract, working hours within CET plus or minus 2
• Direct client interaction is expected
• You will work under client data protection agreements and structured access controls
  
  Our hiring process: 
  Application review → Screening call (30 min) → Technical interview → Final interview with leadership → Reference check → Offer 
  Typical timeline: 3-4 weeks

At UAI Labs, we value diversity and encourage qualified applicants of every background, ability, and life experience to apply. Don't check every box above? If you're strong on the core Skills and Qualifications, we'd still love to hear from you

For our partner, a company operating in the iGaming industry, we are looking for an experienced Senior iGaming Data Analyst with strong expertise in real-money online casino analytics and business performance.

We are looking for a hands-on analytical expert who can independently investigate complex business questions, identify performance drivers, and turn data into actionable recommendations.

In this role, you will work closely with the Chief Analytics Officer and collaborate with Product, Marketing, CRM, BI, and Data Engineering teams.

This is a senior individual contributor position with no people management responsibilities. The primary focus is on analytical expertise, independent problem-solving, and influencing business decisions through data.

Key Responsibilities

Casino Economics & Revenue Analytics

• Analyze key casino metrics, including GGR, NGR, turnover, real-money and bonus bets, winnings, adjustments, and forfeits.
• Investigate revenue fluctuations and identify the underlying business drivers.
• Evaluate revenue performance across GEOs, brands, VIP segments, promotions, and player lifecycle stages.
• Ensure accuracy and consistency of financial and gaming metrics.

Retention & Player Monetization

• Perform cohort analysis covering retention, redeposits, ARPU, ARPPU, and LTV.
• Analyze player behavior, deposit patterns, and lifecycle transitions.
• Identify opportunities to improve retention and player monetization.
• Distinguish genuine performance changes from statistical fluctuations and changes in player composition.

CRM, Bonuses & Product Analytics

• Evaluate CRM campaign performance, bonus effectiveness, promotional ROI, and incremental impact.
• Analyze player segmentation, RFM models, behavioral funnels, and scoring methodologies.
• Design and assess experiments to validate business hypotheses.
• Identify campaign cannibalization, selection bias, and misleading performance indicators.

Acquisition & Payments Analytics

• Analyze acquisition performance across SEO, PPC, and affiliate channels.
• Evaluate CAC, FTD-to-redeposit conversion, cohort ROI, and LTV.
• Investigate payment funnels, approval rates, failed transactions, and deposit friction.
• Detect anomalies and potential abuse patterns related to traffic, bonuses, and payments.

Advanced Analytics & Business Insights

• Lead complex ad hoc analyses and root-cause investigations.
• Develop reliable analytical frameworks and measurement methodologies.
• Partner with cross-functional teams to support data-driven business decisions.
• Present analytical findings and actionable recommendations to senior stakeholders.
• Challenge assumptions and ensure transparency around analytical limitations.

Requirements

• 5+ years of experience in Data Analytics, Product Analytics, or Business Analytics.
• Several years of hands-on experience in real-money iGaming, specifically within a B2C online casino operator.
• Strong understanding of casino economics, GGR/NGR, retention, monetization, player behavior, and revenue drivers.
• Advanced SQL skills, including complex joins, window functions, cohort calculations, and transactional data analysis.
• Solid knowledge of statistical analysis, experimentation, cohort analysis, and causal reasoning.
• Proven ability to investigate KPI fluctuations and identify their root causes.
• Experience working independently with raw data and delivering reliable, reproducible analytical findings.
• Strong business understanding and ability to communicate complex insights to senior stakeholders.
• Ability to take ownership of analytical tasks and work with minimal supervision.

Nice to Have

• Experience with BigQuery, ClickHouse, Tableau, GA4/GTM, Amplitude, Python, or Airflow.
• Experience analyzing multi-brand and multi-GEO iGaming operations.
• Advanced knowledge of CRM analytics, bonus mechanics, and player lifecycle management.
• Experience with payment funnel optimization and fraud/abuse analytics.
• Knowledge of LTV forecasting and marketing attribution.
• Experience with experimental and quasi-experimental methodologies.

What We Expect

During the first 2–3 months:

• Gain a deep understanding of the company's business metrics, data sources, and analytical processes.
• Independently investigate changes in key business KPIs.
• Identify opportunities to improve analytical approaches and business performance.

Within the first 6 months:

• Become a trusted analytical partner to the CAO and key business stakeholders.
• Support strategic decisions across retention, monetization, acquisition, and payments.
• Deliver measurable, actionable insights that contribute to business growth.

N-iX is a global software development service company that helps businesses across the globe create next-generation software products. Founded in 2002, we unite 2,400+ tech-savvy professionals across 40+ countries, working on impactful projects for industry leaders and Fortune 500 companies. Our expertise spans cloud, data, AI/ML, embedded software, IoT, and more, driving digital transformation across finance, manufacturing, telecom, healthcare, and other industries. Join N-iX and become part of a team where your ideas make a real impact.

Our client is a leading European technology company specializing in professional communication and conference systems used worldwide across various sectors, including government institutions, parliaments, courtrooms, and corporate environments. Their solutions support organizations such as the United Nations, the European Parliament, and the French Senate.
The company develops advanced audio and communication technologies, combining high-quality audio equipment with custom software and hardware solutions to ensure reliable, high-performance communication.

The project focuses on developing a compact, multi-board electronic device for professional audio communication. The solution integrates sensitive analog audio circuits, digital components, and power electronics, offering an exciting opportunity to work on complex electronic systems at the intersection of audio engineering and hardware development.

Requirements:

• Experienced in C# programming with MS Visual Studio.
• Experienced Desktop based application.
• Experienced with SNMP protocol to Unite chargers.
• Experience with Audio configuration for mobile devices.
• Experience in standard UI design of existing product.

• Experience of Azure DevOps for building test and final releases

   

Responsibilities:

• Integrate new functionality into the existing source code, including the ability to edit, copy, and erase device settings via the SNMP protocol.
• Configure and maintain audio settings for mobile devices, ensuring compatibility and performance.
• Implement and improve CI/CD pipelines in Microsoft Azure DevOps for automated testing, building, and deployment of new features.
• Develop and maintain desktop-based applications using C# and MS Visual Studio.
• Enhance and optimize the existing UI design to improve usability and user experience.
• Conduct code reviews, debugging, and performance optimization of existing applications.
• Collaborate with cross-functional teams (QA, Product Management, Hardware) to define requirements and deliver high-quality solutions.

• Write and maintain technical documentation for implemented features and system configurations.

   

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

• Project Description:

  We build an in-house trading platform covering order management, execution, and data analysis. It runs on a distributed, event-driven backend.
  We're hiring a hands-on SDET to own backend test automation: service, integration, contract, data, resilience and performance testing across the platform. You'll co-architect and co-own a unified testing framework with our UI SDET. It covers UI, API, messaging, data and performance tests in one place.

   

• Responsibilities:

  Co-architect and co-own, with our UI SDET, a unified testing framework that covers every area we test:
  ◦ Shared foundations: fixtures, test data, configuration, environments and reporting are shared across REST, WebSocket, Kafka, database, performance and UI suites.
  ◦ Cross-layer scenarios: one scenario can follow a workflow from the UI through services and events to the database.
  ◦ One quality view: results from every suite feed a single view of release quality.
  • Design and build automated service, integration and contract tests for REST APIs, WebSocket services, and Kafka producers and consumers.
  • Test event-driven flows end to end: message ordering, idempotency, at-least-once and exactly-once semantics, replays, offset handling, dead-letter queues, and schema evolution (Avro, Protobuf, JSON Schema, Schema Registry).
  • Build harnesses with controlled test data and service virtualization so suites run consistently and can be repeated.
  • Design and build isolated, on-demand test environments on Linux and AWS:
  ◦ Lifecycle: full service stacks (services, Kafka, databases) are created per branch or per run, start with seeded data and known state, and are torn down automatically.
  ◦ Isolation: test runs don't interfere with each other or with shared environments.
  ◦ Infrastructure: the environments are defined as code, with attention to cost.
  • Write data-validation tests across relational and analytical databases. Cover reconciliation and aggregation correctness.
  • Cover resilience and failure modes: broker and consumer outages, network partitions, timeouts, throttling, slow consumers and backpressure, reconnects, and authentication failures.
  • Own backend performance testing:
  ◦ Latency and throughput: design and run load, stress, soak and spike tests on services, messaging pipelines, streaming and query APIs.
  ◦ Baselines and regressions: set baselines and service-level targets (p50/p99 latency, throughput, consumer lag), and catch regressions in CI.
  ◦ Bottlenecks: profile them down to the CPU, GC, query or network layer.
  ◦ Database queries: track query performance on analytical stores. Know how query shape and data volume drive response time.
  • Own backend test execution in CI/CD: parallel runs, scheduled regressions, environment setup and teardown, and release quality gates.
  • Make failures diagnosable: structured logs, distributed traces (OpenTelemetry), correlation IDs across services, and clear reports.
  • Work with backend engineers, infrastructure, business analysts and traders to define and automate critical business workflows.
  • Use AI-assisted tools where they speed up writing tests and analysing failures.

   

• Mandatory Skills Description:

  • 5+ years of backend or service test automation, including framework design.
  • Strong Python (pytest, requests, asyncio, confluent-kafka or similar) for test frameworks, tooling and data validation.
  • Strong Java (JUnit 5, REST Assured, AssertJ, or similar) for testing JVM services.
  • Working TypeScript and Node.js skills: contributing to UI and cross-layer suites in the shared framework, and Node-based tooling (k6 scripts, Playwright API tests).
  • Hands-on Kafka experience: producing and consuming in tests, consumer groups, partitions and offsets, serialization and schema registry, and Kafka Streams or Connect.
  • Solid networking fundamentals: TCP/IP, HTTP/1.1 and HTTP/2, WebSockets, TLS, DNS, load balancers, latency and packet loss. Able to debug with tcpdump/Wireshark, curl and similar tools.
  • Strong SQL and database experience (PostgreSQL, SQL Server, or similar) for test data setup, verification and cleanup. Familiarity with columnar or analytical databases.
  • Hands-on performance and load testing:
  ◦ Tools: k6, Gatling, JMeter or Locust, including Kafka throughput benchmarking.
  ◦ Profiling: JVM tuning and profiling (GC, JFR, async-profiler) or Python profiling.
  ◦ Analysis: reading latency distributions and percentiles correctly, including coordinated omission.
  • API, authentication and contract testing: OAuth/JWT flows, payload and schema validation, and service virtualization (WireMock, MockServer, Hoverfly).
  • Experience building isolated test environments:
  ◦ Linux: strong command-line skills, with shell scripting, systemd, processes, networking and performance troubleshooting.
  ◦ Containers: Docker, Docker Compose and Testcontainers.
  ◦ AWS: EC2, ECS or EKS, S3, IAM, VPC, MSK or RDS, and CloudWatch.
  ◦ Infrastructure as code: Terraform, CloudFormation or CDK.
  • CI/CD with Azure DevOps or Jenkins, and Git.
  • Strong reliability habits: isolated tests, controlled retries, failure-mode testing, and triage of flaky tests.
  • Clear communication and good documentation.

   

• Nice-to-Have Skills Description:

  • Trading or buy-side experience: OMS/EMS, the FIX protocol, market data, positions, allocations, or risk.
  • kdb+/q, or other time-series databases used for tick data.
  • Contract testing with Pact. Property-based testing (jqwik, Hypothesis).
  • Kubernetes and Helm.
  • Chaos and fault-injection tools (Toxiproxy, Chaos Mesh).
  • Observability tools: OpenTelemetry, Grafana, Prometheus.
  • Experience with large-scale distributed systems.

• Languages:
  • English: B2 Upper Intermediate

Processing Steps

• Project Description:

  We build an in-house trading platform covering order management, execution, and data analysis. The front end is a set of TypeScript/React apps running in a desktop container and streaming real-time data.
  We're hiring a hands-on SDET to own UI test automation: extend our Playwright framework, make streaming, multi-window workflows testable, and add quality gates to CI, including front-end performance. You'll co-architect and co-own a unified testing framework with our backend SDET. It covers UI, API, messaging, data and performance tests in one place.

• Responsibilities:

  • Co-architect and co-own, with our backend SDET, a unified testing framework that covers every area we test:
  ◦ Shared foundations: fixtures, test data, configuration, environments and reporting are shared across UI, API, Kafka, database and performance suites.
  ◦ Cross-layer scenarios: one scenario can cross layers. For example, a test places an order in the UI, then checks the resulting event and the database record.
  ◦ One quality view: results from every suite feed a single view of release quality.
  • Design, build and maintain end-to-end and component tests with Playwright and TypeScript for trading and analytics workflows.
  • Extend our shared test toolkit: page objects, fixtures, and mocks of desktop-container APIs.
  • Build front-end harnesses for real-time data: mocked WebSocket and REST responses, controlled test data, and deterministic replay of streaming updates.
  • Cover UI failure modes: disconnects and reconnects, expired sessions, permission failures, bursty feeds, and stale data.
  • Own front-end performance testing:
  ◦ Startup and responsiveness: measure app startup and time-to-first-data, and check that the UI stays responsive under high update rates.
  ◦ Grid behaviour at scale: measure render and scroll performance of grids with tens of thousands of rows.
  ◦ Container resources: track memory growth and leaks in long-running desktop sessions, and CPU cost per window.
  ◦ Regression gates: turn the results into budgets that fail CI on a regression.
  • Build and maintain isolated, on-demand test environments on Linux and AWS:
  ◦ Lifecycle: environments are created per branch or per run, start with seeded data and known state, and are torn down automatically.
  ◦ Isolation: test runs don't interfere with each other or with shared environments.
  • Validate front-end/back-end contracts and payload schemas.
  • Run UI suites in CI/CD: sharded parallel runs, scheduled regressions, and reporting on pull requests.
  • Make failures diagnosable: Playwright traces, screenshots and video, and correlation with telemetry.
  • Work with UI engineers, business analysts and traders to automate critical workflows and define QA acceptance criteria.
  • Use AI-assisted tools where they help with writing, maintaining and triaging tests.

• Mandatory Skills Description:

  • 5+ years of UI test automation, including designing or significantly extending a framework.
  • Strong TypeScript/JavaScript and Node.js skills, with substantial hands-on Playwright experience. Strong Cypress or Selenium experience plus willingness to move to Playwright is also fine.
  • Working Python skills (pytest, Playwright for Python): test tooling, data setup, backend checks inside UI scenarios, and contributing to the shared framework.
  • Experience testing React apps with complex data grids (AG Grid or similar), dynamic forms and heavy client-side state.
  • Experience mocking network traffic in the browser (REST and WebSocket) and testing authentication flows.
  • Front-end performance testing experience:
  ◦ Profiling: Chrome DevTools Performance and Memory panels, and the Lighthouse and performance APIs.
  ◦ Diagnosis: finding long tasks, layout thrashing and memory leaks.
  ◦ Budgets: setting performance budgets and enforcing them in CI.
  • CI/CD experience with Azure DevOps (preferred) or Jenkins/GitHub Actions, and Git.
  • Experience building isolated test environments:
  ◦ Linux: comfortable on the command line, with shell scripting, processes, networking and log troubleshooting.
  ◦ Docker: Docker and Docker Compose.
  ◦ AWS: EC2, ECS or EKS, S3, IAM, VPC and CloudWatch.
  ◦ Infrastructure as code: Terraform, CloudFormation or CDK.
  • Strong reliability habits: isolated tests, deterministic waits instead of sleeps, controlled retries, and triage of flaky tests.
  • Experience with test reporting and traceability (Playwright reports, Allure, Azure Test Plans, TestRail).
  • Clear communication and good documentation.

• Nice-to-Have Skills Description:

  • Trading or buy-side experience: OMS/EMS, algos, positions, allocations, or risk.
  • Java exposure, enough to read service code and contribute to backend suites in the shared framework.
  • Desktop container automation: Electron, OpenFin, or similar.
  • Component testing (Vitest or Jest). Storybook visual or interaction testing.
  • Accessibility and visual-regression testing.
  • React Profiler and familiarity with React rendering performance (memoization, virtualization).
  • OpenTelemetry or similar real-user-monitoring tools, and using production RUM data to pick performance test scenarios.

• Languages:
  • English: B2 Upper Intermediate

About the client and the challenge

Our client is a global leader in passenger information systems — the displays, on-board computers, and real-time data platforms that tell millions of passengers when their bus, tram, or train arrives, in vehicles and terminals across Europe and North America.

Having grown through multiple acquisitions across Europe, the client now operates a mixed landscape: transit fleets running hardware and backend systems from different acquired vendors — some brand new, some deeply legacy. Their strategic goal is to consolidate everything onto one unified cloud platform capable of managing both new and legacy systems, without disrupting vehicles in daily service.

The first engagement is the migration of a legacy real-time transit system to the unified platform: re-implementing industry data protocols (real-time vehicle feeds, timetable imports, on-board device communication) as cloud services. More migration and modernization initiatives of similar shape will follow — this role is designed to lead them.

About the role

We are looking for a Tech Lead / Solutions Architect to become the long-term technical owner of this account at N-iX — not a per-project consultant. Requests from the client are often broad or abstract ("we need to migrate this system") and the concrete scope has to be discovered: investigate the legacy landscape, define what actually needs to be done, shape it into a roadmap and technical backlog, then guide delivery.

This makes the role as much about bridging the business and technical worlds as about architecture itself: you'll translate business intent into technical direction and technical reality back into business language the client's leadership can act on. You will build and hold a holistic, cross-project view of the client's ecosystem — how their platforms, legacy systems, and initiatives interconnect — becoming the ultimate knowledge holder on the N-iX side and the client's trusted technical counterpart. As the current project completes, you will carry that context into the next initiatives and act as the technical driver of the whole account.

Technology landscape: the legacy systems to be migrated are written mostly in C# and C++ (with Java present elsewhere in the client's ecosystem); the target platform is built in Python on Azure, with an MQTT-centric, event-driven architecture. You won't be supporting the legacy code — you'll be reading and dissecting it to migrate it.

Responsibilities:

• Own solution architecture across the account: from ambiguous requests to investigated scope, target architecture, roadmap, and estimated technical backlog
• Lead technical discovery of legacy systems and define migration strategies to the target platform
• Act as the client's primary technical counterpart: workshops, architectural decisions, trade-off discussions with their engineering leadership and domain experts
• Guide the development team day to day: architecture and code reviews, technical standards, unblocking design decisions; hands-on coding when it matters most (PoCs, critical components)
• Own and maintain system documentation: architecture decisions, protocol specifications, and migration knowledge — kept current as delivery reveals gaps, so account knowledge lives in artifacts, not only in heads
• Safeguard the integrity of the overall platform architecture (event-driven, MQTT as the single source of truth, adapter-based integrations) across teams and initiatives
• Identify risks, dependencies, and opportunities across projects; feed them into account planning together with delivery and engagement managers
• Drive AI adoption & strategic application: Proactively identify high-ROI opportunities across the engagement where AI tools can accelerate discovery, reverse-engineering, and delivery;
• Advise client stakeholders and N-iX teams on where, when, and how to deploy AI safely and effectively

Requirements:

• 8+ years in software engineering, 3+ years in a solution architect / tech lead role on complex backend or integration-heavy systems
• Proven experience leading legacy modernization / platform migration programs, including working with codebases you didn't write
• A software engineer's mindset rather than a single-language identity: we're not looking for "a C# engineer" or "a Python engineer," but someone ready to deep-dive into unfamiliar legacy codebases (C#, C++, Java) for migration purposes and design their replacements in the target stack (Python)
• Proven experience as a bridge between business and engineering: comfortable in front of C-level and product stakeholders as much as in a codebase, able to drive decisions on both sides
• Hands-on AI-augmented workflow & advocacy: Proven personal track record of integrating AI tools into your daily engineering practice, with the initiative and credibility to champion AI adoption across development teams, set standards and review guardrails, and mentor engineers on getting the most out of AI assistance.
• Strong architectural background: distributed systems, event-driven design, message brokers (MQTT/Kafka/similar), REST APIs, cloud-native services (Azure preferred)
• Kubernetes/Docker and infrastructure-as-code (the client uses Pulumi); comfort owning deployment without a dedicated DevOps team
• Strong requirements-engineering skills: able to turn vague, abstract client asks into investigated, prioritized, estimable scope
• Excellent client-facing communication; experience as the technical point of contact for a customer account
• Upper-Intermediate+ English level

Nice to have:

• Domain experience with transit/mobility data standards (GTFS/GTFS-RT, SIRI, VDV, TransXChange) or other real-time telemetry/IoT systems
• Experience with embedded or on-board device communication (UDP protocols, constrained devices)
• Experience with performance/load engineering for high-throughput ingestion (thousands of messages/sec)

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

About the client and the challenge

Our client is a global leader in passenger information systems — the displays, on-board computers, and real-time data platforms that tell millions of passengers when their bus, tram, or train arrives, in vehicles and terminals across Europe and North America.

Having grown through multiple acquisitions across Europe, the client now operates a mixed landscape: transit fleets running hardware and backend systems from different acquired vendors — some brand new, some deeply legacy. Their strategic goal is to consolidate everything onto one unified cloud platform capable of managing both new and legacy systems, without disrupting vehicles in daily service.

The first engagement is the migration of a legacy real-time transit system to the unified platform: re-implementing industry data protocols (real-time vehicle feeds, timetable imports, on-board device communication) as cloud services. More migration and modernization initiatives of similar shape will follow — this role is designed to lead them.

About the role

We are looking for a Tech Lead / Solutions Architect to become the long-term technical owner of this account at N-iX — not a per-project consultant. Requests from the client are often broad or abstract ("we need to migrate this system") and the concrete scope has to be discovered: investigate the legacy landscape, define what actually needs to be done, shape it into a roadmap and technical backlog, then guide delivery.

This makes the role as much about bridging the business and technical worlds as about architecture itself: you'll translate business intent into technical direction and technical reality back into business language the client's leadership can act on. You will build and hold a holistic, cross-project view of the client's ecosystem — how their platforms, legacy systems, and initiatives interconnect — becoming the ultimate knowledge holder on the N-iX side and the client's trusted technical counterpart. As the current project completes, you will carry that context into the next initiatives and act as the technical driver of the whole account.

Technology landscape: the legacy systems to be migrated are written mostly in C# and C++ (with Java present elsewhere in the client's ecosystem); the target platform is built in Python on Azure, with an MQTT-centric, event-driven architecture. You won't be supporting the legacy code — you'll be reading and dissecting it to migrate it.

Responsibilities:

• Own solution architecture across the account: from ambiguous requests to investigated scope, target architecture, roadmap, and estimated technical backlog
• Lead technical discovery of legacy systems and define migration strategies to the target platform
• Act as the client's primary technical counterpart: workshops, architectural decisions, trade-off discussions with their engineering leadership and domain experts
• Guide the development team day to day: architecture and code reviews, technical standards, unblocking design decisions; hands-on coding when it matters most (PoCs, critical components)
• Own and maintain system documentation: architecture decisions, protocol specifications, and migration knowledge — kept current as delivery reveals gaps, so account knowledge lives in artifacts, not only in heads
• Safeguard the integrity of the overall platform architecture (event-driven, MQTT as the single source of truth, adapter-based integrations) across teams and initiatives
• Identify risks, dependencies, and opportunities across projects; feed them into account planning together with delivery and engagement managers
• Drive AI adoption & strategic application: Proactively identify high-ROI opportunities across the engagement where AI tools can accelerate discovery, reverse-engineering, and delivery;
• Advise client stakeholders and N-iX teams on where, when, and how to deploy AI safely and effectively

Requirements:

• 8+ years in software engineering, 3+ years in a solution architect / tech lead role on complex backend or integration-heavy systems
• Proven experience leading legacy modernization / platform migration programs, including working with codebases you didn't write
• A software engineer's mindset rather than a single-language identity: we're not looking for "a C# engineer" or "a Python engineer," but someone ready to deep-dive into unfamiliar legacy codebases (C#, C++, Java) for migration purposes and design their replacements in the target stack (Python)
• Proven experience as a bridge between business and engineering: comfortable in front of C-level and product stakeholders as much as in a codebase, able to drive decisions on both sides
• Hands-on AI-augmented workflow & advocacy: Proven personal track record of integrating AI tools into your daily engineering practice, with the initiative and credibility to champion AI adoption across development teams, set standards and review guardrails, and mentor engineers on getting the most out of AI assistance.
• Strong architectural background: distributed systems, event-driven design, message brokers (MQTT/Kafka/similar), REST APIs, cloud-native services (Azure preferred)
• Kubernetes/Docker and infrastructure-as-code (the client uses Pulumi); comfort owning deployment without a dedicated DevOps team
• Strong requirements-engineering skills: able to turn vague, abstract client asks into investigated, prioritized, estimable scope
• Excellent client-facing communication; experience as the technical point of contact for a customer account
• Upper-Intermediate+ English level

Nice to have:

• Domain experience with transit/mobility data standards (GTFS/GTFS-RT, SIRI, VDV, TransXChange) or other real-time telemetry/IoT systems
• Experience with embedded or on-board device communication (UDP protocols, constrained devices)
• Experience with performance/load engineering for high-throughput ingestion (thousands of messages/sec)

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

We are looking for an experienced Key Account Manager with strong knowledge of the Indian market to manage and grow relationships with strategic merchants and payment partners.

The ideal candidate has hands-on experience working with Indian merchants, understands the local payments ecosystem, and can effectively manage merchant relationships and operational processes.

Key Responsibilities:

• Serve as the primary point of contact for key merchants.
• Maintain long-term relationships with clients and partners.
• Support onboarding and operational activities.
• Drive merchant retention and satisfaction.
• Identify upsell and cross-sell opportunities.
• Coordinate internally with Risk, Compliance, Operations, and Technical teams.
• Resolve client issues and ensure high-quality service delivery.
• Monitor account performance and identify growth opportunities.

Requirements:

• 2+ years of experience in Account Management, Customer Success, Merchant Success, or Client Relationship Management.
• Previous hands-on experience working with the Indian market and Indian merchants is required.
• Experience within fintech, payments, PSP, acquiring, banking, or SaaS environments.
• Good understanding of payment processing workflows and merchant operations in India.
• Strong communication and relationship-building skills.
• Ability to manage multiple stakeholders and priorities.
• Commercial mindset and customer-oriented approach.
• Fluent English.
• Knowledge of Hindi or other local Indian languages will be an advantage.