Jobs

We are looking for a Senior or Lead Software Development Engineer to join a cloud data platform initiative focused on managed Kafka connectors. The role centers on accelerating onboarding of first-party connectors, improving reliability and launch readiness, and helping expand a managed connector ecosystem used in data-intensive cloud services.

Tasks

• Accelerate onboarding of new first-party managed Kafka connectors;
• Improve connector quality, reliability, and operational readiness;
• Integrate authentication and platform-specific cloud requirements;
• Translate connector behavior into implementation details, UI specs, and documentation inputs;
• Support launch gates such as probers, load testing, playbooks, and launch reviews.

Responsibilities

• Strong Java experience, as the core workers and connectors are implemented in Java;
• Practical Go experience for API-facing changes and service integration work;
• Practical experience with GCP cloud;
• Experience integrating, debugging, and improving connector-based or data integration systems;
• Ability to work across performance, stability, authentication, and network-compatibility concerns;

• Strong engineering ownership across delivery, launch readiness, and operational quality.

   

Nice to Have:

• Experience with Kafka Connect ecosystems;
• Experience with CDC-oriented connectors or sink/source integrations;

• Exposure to cloud data systems such as BigQuery, Spanner, Bigtable, Iceberg, or Debezium-based workflows.

   

Engagement Type

• B2B contract.

   

Location / Timezone

• Priority location is Krakow, Poland;
• On-site presence at the Akvelon office

🔹Who we are!

At Levi9, we are passionate about what we do. We love our work and together in a team, we are smarter and stronger. We are looking for skilled team players who make change happen. Are you one of these players?

🔹About the project

Backbase is a Dutch banking software financial technology company that provides a banking infrastructure software platform that it calls engagement banking. The system is used by financial institutions globally from large banks to credit unions and community banks.
 

🔹Requirements

• 5+ years of hands-on experience building and maintaining complex Android applications in production environments.
• Experience in the banking or financial domain is a strong plus.
• Skilled at translating high-level business requirements into secure, scalable, and maintainable technical solutions.
• Strong engineering mindset and follow modern Agile practices throughout the entire software development lifecycle.
• Continuous Integration and Continuous Deployment (CI/CD) are part of your core workflow, ideally using tools like Bitrise or GitHub Actions.
• Mobile development expert who’s always ready to share best practices and lead by example — not just follow them.
• Strong technical expertise in Android architecture patterns such as MVI or MVVM.
• Experience with Jetpack Compose (at least on pet projects) and understanding of its role in modern Android UI development.
• Deep knowledge of Kotlin, especially Coroutines and Flows, and how to use them effectively in real-world applications.
• Solid grasp of Dependency Injection, with hands-on experience using frameworks like Koin (or similar).
• Strong understanding of Android security best practices, including SSL Pinning, secure data storage, encryption, etc.
• Hands-on proficiency with AI tools like GitHub Copilot, Cursor, Claude Code.
• Practical experience with agents, skills, MCP servers, agentic SDLC.
• Practical AI leverage for increasing productivity

🔹9 reasons to join us:

1. Today we're working with the technology of tomorrow.
2. We don't wait for a change. We are the change.
3. We're experts in creating experts (Levi9 academy, Lead9 program for leaders).
4. No micromanagement. We are free birds with a clear understanding of what the high performance is!
5. Learning in Levi9 never stops (unlimited Udemy for business, meetups, English courses, Professional trainings).
6. Here you can train your body and mind.
7. We've gathered the best locations - comfortable, cozy and pet-friendly offices in Kyiv (5 minutes from Olimpiyska subway station) and Lviv (5 minutes from the Opera Theatre) with regular offline internal events
8. We have master's degree in work-life balance.
9. We are actively supporting Ukraine with constant donations and volunteering

Our client build autonomous navigation for UAVs - systems that actually fly, in real conditions, without GPS as a crutch. The team is small, the problems are hard, and the code ends up on hardware. 

If you've worked on vision systems that had to work in the field - not just in simulation - this might be worth a look.

What we're looking for

• 5+ years in computer vision, with real experience in robotics, UAVs, or autonomous systems.
• Shipped real-time vision algorithms — detection, tracking, segmentation, or navigation — not just research code.
• Hands-on with edge deployment and model optimization for resource-constrained hardware.
• Strong Python and/or C++. Comfortable with PyTorch or TensorFlow, and OpenCV.
• Master's or PhD in CS, Robotics, EE, or related field.
• You can own a problem and communicate clearly

Nice to have

• Hands-on SLAM experience (ORB-SLAM, VINS, or similar).
• Familiarity with MAVLink protocol, ArduPilot, or PX4.
• Real-world UAV testing - not just Gazebo.
• Publications or open-source contributions in vision or robotics.

What you'll do

• Design and optimize CV algorithms for localization, mapping, and navigation -own this end-to-end.
• Work on detection, segmentation, SLAM, 3D scene reconstruction, visual odometry, and sensor fusion (cameras, LiDAR, IMUs).
• Deploy and optimize vision models on embedded platforms — Jetson, Raspberry Pi class devices.
• Integrate CV modules with flight controllers and navigation systems via MAVLink/ArduPilot/PX4.

• Work closely with hardware and software teams - this is a cross-functional role, not a silo.

  Run experiments, analyze results, iterate. Ship things that fly.

We are looking for an experienced Senior Java Full Stack Engineer to join our development team.

Our customer – integrated Shipping Services has set itself apart as an independent carrier with a fresh, unique approach. His strategy as a global niche carrier offers distinctive advantages to customers worldwide. We have created a smart, efficient network that ensures stable, reliable services, and we have made it our mission to focus on the needs of our customers, which stand at the heart of all our decisions. The main idea of our product operates in select trades, where it has a competitive advantage and where it can provide superior service. We maintain a flexible partnership approach with other major carriers, and our new line structure is a much-needed alternative to customers concerned about the current alliance-dominated market.

Responsibilities:

• Hands-on full-stack development of innovative applications
• Owning the entire development cycle, including design, architecture, development, and DevOps

• Working in XP with Remote pairing

   

Requirements:

• BS degree in Computer Science or equivalent combination of education and experience
• 5-6+ years of full-stack development
• 5-6+ years of experience in the following technologies: Java, Spring
• Experience with Functional Programming and Java Streams
• 2+ years of experience in front-end development with React
• Experience with developing a reactive UI (Reactive JS)
• 2+ years of experience in TDD/BDD development in the following frameworks: Junit, Jasmin, Mockito, Protractor/Selenium
• 2+ years of experience in micro-services-based architecture and tools (Spring Boot/Cloud)
• Experience in DevOps development and Jenkins
• Experience in development in Kotlin – an advantage
• Experience in designing, developing, and deploying cloud/hybrid-based solutions
• Experience in developing and deploying in container-based environments (Kubernetes, Cloud Foundry)
• Familiarity with the following design concepts: micro-services, service discovery, circuit breaker
• Self-starter with the ability to appropriately prioritize and plan complex work in a rapidly changing environment
• Versatility and the capability to switch easily between different tasks and technologies
• Experience in assessing a broad range of information solutions and products
• Strong critical thinker with problem-solving aptitude

• Good English - verbal and written

   

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

Are you the kind of person who instinctively tries to break things just to make them better? Do you enjoy uncovering hidden edge cases, questioning assumptions, and ensuring users get a seamless experience every time?
 

They are looking for a QA Engineer who thrives on exploratory testing, adversarial thinking, and delivering exceptional product quality. In this role, you’ll work closely with Product, Engineering, and Design teams to shape reliable, user-centric experiences across web and mobile platforms.
 

This is an opportunity to have a real impact - not just by finding bugs, but by influencing quality standards, improving testing processes, and helping teams ship with confidence.

 

What You’ll Do
 

• Design, maintain, and execute detailed manual test plans for new features and releases
• Dive deep into exploratory and adversarial testing to uncover edge cases, usability gaps, and unexpected behaviors
• Identify, document, prioritize, and track issues throughout the development lifecycle
• Investigate API logs and network traffic using tools like Charles Proxy, Fiddler, or Chrome DevTools to pinpoint front-end vs. back-end issues
• Validate complex user flows, backend data integrity, and database states
• Partner closely with developers to troubleshoot problems and verify fixes
• Clearly communicate testing progress, known risks, and release readiness across teams
• Ensure flawless functionality, UI/UX consistency, and responsiveness across web, iOS, and Android platforms
• Maintain clean and actionable bug reports and testing documentation
• Collaborate cross-functionally with Product, Design, and Engineering to continuously improve product quality
• Contribute to evolving QA practices, workflows, and testing standards
• Use AI-powered tools and workflows to improve testing efficiency, bug analysis, and quality processes
  
   

What They’re Looking For
 

• 4+ years of experience in manual QA or software testing
• Strong experience creating and executing comprehensive manual test plans
• A curious, detail-oriented mindset with a passion for finding issues before users do
• Solid understanding of web and mobile technologies, including:
  • HTTP
  • HTML
  • Client-server architecture
  • Caching
  • SQL & NoSQL databases
• Strong troubleshooting, bug tracking, and prioritization skills
• Experience validating APIs, backend flows, and complex data interactions
• Excellent communication and collaboration skills in cross-functional environments
• Comfortable working in fast-paced product and engineering teams
• Experience using AI tools to improve productivity, workflows, or testing efficiency
• Bachelor’s degree in Computer Science, a related technical field, or equivalent practical experience
   

Nice to Have

• Experience coding in Java, Python, or JavaScript
   

Why This Role Stands Out

You won’t just execute test cases - you’ll help shape product quality from the ground up. They value people who think critically, challenge assumptions, and bring a strong sense of ownership to the user experience. If you enjoy solving complex problems, collaborating with smart teams, and making products better every day, this could be the right fit for you.

Ever worked in an environment where engineers are expected to challenge bad code instead of silently accepting it?
Where spotting hidden bugs, architectural problems, and security risks matters more than shipping features fast?
Where your opinion is valued specifically because you can say: “this implementation is wrong and here’s why”?

If you’re confident reviewing unfamiliar systems, care deeply about engineering quality, and prefer direct technical communication over corporate politeness - this role is for you.

About the Company

Our client is a Switzerland-based trading technology company building a stock trading platform used for real-time trading operations and financial workflows.

The platform includes: real-time market data, order entry & order management, portfolio management, watchlists & alerts, trading dashboards, internal CRM systems.

The Role

We’re looking for a Senior Software Engineer focused on architecture review, code quality, reliability, and technical evaluation across multiple systems.

This is not primarily a feature-development role.

You’ll work with existing production systems, reviewing and evaluating code written in Python, TypeScript/React, and partially Rust-based environments.

What You’ll Do

Review & Evaluate Engineering Quality

• Analyze backend and frontend codebases critically
• Review architecture using Clean Code, SOLID, and DDD principles
• Detect technical debt and maintainability risks
• Evaluate pull requests and engineering decisions

Hunt Bugs & Reliability Problems

• Detect race conditions and async issues
• Identify off-by-one errors, null/None problems, and memory leaks
• Review concurrency behavior and hidden edge cases
• Identify production risks early

Improve System Performance

• Analyze scalability and Big-O complexity
• Detect N+1 queries and inefficient backend logic
• Identify unnecessary React re-renders
• Find bottlenecks affecting reliability or responsiveness

Review Security & Infrastructure Risks

• Evaluate systems against OWASP Top 10 risks
• Detect SQL injection vulnerabilities and secret leaks
• Review unsafe input handling and path traversal risks
• Evaluate dependency vulnerabilities (CVEs)
• Review Tauri IPC sandbox/security issues

Evaluate Testing Standards

• Review pytest, vitest, and cargo test implementations
• Identify weak coverage and missing edge cases
• Evaluate TDD quality and mocking approaches
• Detect gaps between “tests passing” and real reliability

Work Across Modern Tooling

• Use ruff, mypy, eslint, and clippy
• Review Git diffs and PR workflows
• Read and evaluate API integration code
• Detect misuse of OpenAI, Anthropic, or Gemini SDKs
• Review REST/WebSocket reliability patterns (retry logic, idempotency, etc.)

What You Bring

• Strong experience as a Senior or Staff-level Software Engineer
• Deep expertise in Python 3.11+
  • Typing
  • Async programming
  • Pydantic
• Strong TypeScript 5+ and React 19 experience
• Ability to read and evaluate Rust code (Tauri 2 ecosystem)
• Strong understanding of software architecture and engineering quality
• Experience reviewing unfamiliar codebases quickly
• Strong debugging and analytical skills
• Confidence giving direct, critical technical feedback
• Ability to prioritize issues by severity (Critical / Major / Minor)
• Upper-Intermediate English or higher
• German reading skills required (comments, commits, and technical discussions may partially be in German)

Nice to Have

• Experience reviewing ffmpeg or Pillow pipelines
• Familiarity with Vector DB or ONNX-related code patterns
• Experience in trading, fintech, or high-reliability systems

What You Get

• Engineering-First Environment: Work with teams that care about architecture, maintainability, and technical correctness - not just feature velocity.
• Real Technical Influence: Your feedback will directly impact engineering standards, code quality, and technical decisions.
• Complex Systems: Trading infrastructure, async workflows, performance-sensitive systems, and real-world scalability challenges.
• Direct Communication Culture: The company values honest technical feedback, critical thinking, and engineering maturity over hierarchy or corporate formalities.
• Strong Autonomy: No micromanagement. Engineers are trusted to make technical judgments and take ownership.

Ready to Work Where Code Quality Actually Matters?

If you enjoy analyzing complex systems, identifying critical issues before production does, and working in a direct, high-level engineering environment —

👉 Apply now and help improve systems built for reliability, performance, and scale.

About the role

We are building a revolutionary system at the frontier of technology and AI.

As a AI-native Engineer, you won’t just write code — you will shape the future of how apps are built. You’ll be part of the early execution engine—shipping core capabilities, refining the experience, and elevating reliability. Expect tight loops, clear ownership, and visible impact. You'll engage directly with first clients, adapt the platform to their needs, and set the stage for the next generation of software creation.

What we’re looking for

We want someone who doesn’t just “fit the role” but defines it:

• Open-minded explorer: ready to try bold ideas, new approaches, and cutting-edge tools.
• Hacker mindset & problem solver: able to connect the dots across complex systems and find elegant solutions.
• Analytical and resilient: thrives in debugging intricate, interconnected architectures.
• Startup speed enthusiast: comfortable hacking fast, shipping early, learning from feedback, and polishing later.
• Experienced in Cursor, Claude Code or other AI coding assistants.
• Passionate about AI-driven Engineering: turning AI into your engineering team-mate.
• Natural leader: with the drive to inspire and guide people.

Why join us?

• Be among the first engineers driving a bold, world-changing vision.
• Work at the bleeding edge of technology and AI, where experimentation is not just allowed but expected.
• Direct influence on product.
• A chance to build something that reshapes how things get done in today’s world.
• A team that values curiosity, creativity, and the pure joy of hacking together the future.

This isn’t just another job. This is your chance to engineer the future of software itself.

Technical stack 

!Prior experience with these technologies isn't mandatory, provided you demonstrate a strong willingness to learn and leverage AI tools. At the end of the day, we consider these to be just tools wielded by a SE.

Core technologies:

• TypeScript, React.js, Next.js, Bun.
• ClickHouse, PostgreSQL, Redis
• Docker / Kubernetes
• Kafka
• Supabase, Inngest, Posthog

Nice to have:

• Vue.js
• Python
• Go
• Ruby

Hiring Process

Stage 1: Interview with HR (1h).

Stage 2: Interview with VP of Engineering.

Stage 3: Tech. Interview

Stage 4: Interview with the team.

What we offer for your success

• Very warm and friendly working environment and flexible working schedule.
• 20 days off + paid national holidays, and 12 sick days paid by the company per year.
• Medical insurance, and health protection programs (with COVID-19 and dental coverage).
• Continuous professional development and growth opportunities.

Senior Full Stack Engineer

We’re building the Production ready system from the PoC and looking for a Senior Full Stack Engineer who enjoys creating scalable products and taking ownership of real technical decisions. You’ll work closely with product and design teams, shape parts of the architecture, and help turn ideas into a production-ready platform.

Requirements:

• 5+ years of software development experience with JavaScript, TypeScript, and modern ES6+
• Strong experience with React and Next.js
• Strong experience with backend development using Node.js / NestJS
• Hands-on experience with MongoDB and PostgreSQL
• Hands-on experience with MQTT
• Experience building applications that can be deployed on both OnPrem and Cloud platforms
• Experience building scalable applications and contributing to system architecture
• Ability to take ownership of features and technical solutions
• Comfortable working in fast-paced, product-driven environments
• Strong communication skills and ability to collaborate with both technical and non-technical stakeholders
• Upper-Intermediate English (B2+)

Nice to Have:

• Experience with React Native or WebSockets
• Experience working in startup or early-stage environments
• Experience with Azure, IoT Hub, Microsoft Entra ID
• Previous experience mentoring engineers or contributing to technical leadership

Responsibilities:

• Develop and deliver key features of a new product from concept to launch
• Contribute to the design and implementation of scalable frontend and backend architecture
• Collaborate closely with product, design, and engineering teams
• Take ownership of technical solutions and help drive implementation
• Participate in code reviews and maintain high engineering standards
• Contribute to development best practices and team workflows
• Support and mentor less experienced engineers when needed
• Continuously improve performance, reliability, and scalability of the platform.

Department: Data Platform
Reports to: Data Engineering Lead
Employment Type: Full Time
Work Model: Fully Remote
Location: Remote EMEA

 

About Traffic Label

Traffic Label is a fast-growing, data-driven technology company operating in the iGaming and affiliate marketing space, building scalable products focused on performance, analytics, and automation across global markets.

What we’re building
We’re building a Customer Data Platform: one unified player profile across our group of brands. The platform should help the business:

 

• Improve acquisition. Understand who actually converts, and why others don’
• Increase conversion. Replace generic flows with journeys built for the specific player in front of us.
• Segment players properly. Who’s a high-value player? Who’s at risk of leaving? Who’s a VIP?
• Reactivate before churn. Spot players who are about to leave and bring them back with offers that match what they actually want.

Tech stack:

• Snowflake (with Snowpipe and Cortex Analyst LLM agent).
• dbt, Python.
• Airflow (Astronomer), AWS (S3, Lambda), Terraform, GitHub Actions.
• Omni BI on top. Reverse ETL into marketing platforms.
• Medallion architecture: bronze, silver, gold.

We’re early in the build, and the person we hire helps shape the foundation.

Role Overview
You sit between the business (Product Owner, stakeholders) and the engineering team.
About 30% of your time is practical data work: validating that CDP capabilities behave as specified, exploring data before specs are written, testing hypotheses for new capabilities, building shared gold layer models that consumer teams use, and helping those teams understand what data is available. It is not business reporting or analytics built for individual brands.

The other 70% is Systems Analysis: turning what you find into specs engineers can build from, owning data quality from symptom to root cause, raising what isn’t right before it ships, and shaping the semantic layer so other business lines can find and trust the data.

Four things define the systems analysis side:

1. Turn business intent into specs that engineers can build from. Talk to stakeholders, figure out what they actually need, and write it down. Each spec covers source schema, target model, transformation logic, business glossary, schedule, data quality checks, consumer, and use case. Stay reachable through development. Engineers will have questions.
2. Find and fix data quality problems at the root, alongside the engineering function. Trace lineage, identify the cause, work with the data source owner on the fix, check downstream impact, and close the loop.
3. Confirm what’s delivered does what we said it would. Validate against the spec you wrote. When the data isn’t right, you raise it before it ships.
4. Make data usable beyond the team that asked for it. Contribute to the semantic layer, data descriptions, and shared definitions so other business lines can find what they need, understand what it means, and trust it without going through you each time.

You work on the Data Platform layer: CDP build, identity resolution, data quality, semantic definitions, and governance. Business analytics on top of the platform, such as dashboards and performance reports for specific brands, is produced by analyst teams aligned to those brands. Your job is to make sure those teams can do theirs: trustworthy data, clear definitions, fast issue resolution.

The team
You sit within the Data Platform alongside:

• A Product Owner who sets the roadmap and business priorities.
• The Data Engineering function. Your manager (Data Engineering Lead) and the engineers building the platform.
• Embedded QA function. Owns automated validation.
• Shared DevOps across the wider organisation.

Where you’ll start
Identity resolution. Deterministic matching is already running in our MDM across five data sources. You extend coverage to the remaining sources and validate match quality at scale. The harder cases are future scope: hashed identifiers without keys, duplicates across sources, device and behaviour signals. They start when we add dedicated ML engineering capacity, with no committed timeline yet. You’ll own the spec and acceptance for that work when it begins.

Skills & Experience

• SQL. Expert level. Window functions, complex joins, and root cause investigation on large datasets.
• dbt. Practical experience. You can write models, write tests, and debug them.
• Python. Comfortable for ad hoc analysis, scripting, and data manipulation.
• Confident across the modern data stack. You investigate problems yourself instead of waiting for DE, and you can explain the root cause to the business in plain language.
• Medallion or layered data architectures.
• You’ve written specifications that engineers built from.
• You’ve owned a data quality problem from “something looks off” to “fixed at source”.
• You can talk to business stakeholders and a backend engineer in the same hour without losing either of them.
• Background in iGaming, affiliate marketing, SaaS, or other high-volume digital businesses.
• Experience unifying customer or user profiles across sources, sometimes called Customer 360 or Single Customer View. Angles: identity matching, semantic modelling, etc.

What We Offer

• Opportunity to work on scalable, high-impact products in a growing iGaming business
• Collaborative and fast-paced engineering environment
• Exposure to modern technologies and architecture
• Competitive salary and performance-based incentives
• Flexible working environment and supportive team culture

We are a Ukrainian outsourcing company Join.To.IT, founded in 2012, and delivering software solutions across diverse business domains.
We focus on building long-term partnerships with our clients and delivering solutions that create real business impact. Our team consists of experienced professionals who take ownership of their work, value clear communication, and are committed to high standards in everything they do.
At Join.To.IT, we create an environment where engineers can grow, influence technical decisions, and contribute to meaningful projects alongside a strong and supportive team. 
     Responsibilities

• Manage the full sales cycle from lead generation to deal closure
• Work with Upwork as the main client acquisition channel
• Communicate with potential clients and conduct negotiations
• Prepare commercial proposals and participate in project estimations
• Collaborate with technical teams during pre-sales stages
• Build long-term relationships with clients and identify upsell opportunities

      Requirements

• Experience in IT sales / Business Development
• Strong experience working with Upwork
• Understanding of outsourcing/outstaffing business models
• Good communication and negotiation skills
• Ability to work with technical teams and understand project scope
• Upper-Intermediate+ English level
  We Offer
• Office-based work format (Kyiv, near Vasylkivska metro station with shelter, Starlink and uninterrupted power supply)
• Free gym access near the office
• Paid vacation and sick leave
• Medical Insurance
• Compensation for professional courses and development
• Supportive and loyal management

Ajax Systems, an international tech company and the largest manufacturer of security systems in Europe.

We are looking for a DevOps Team Lead to join our Platform Team and help us scale, secure, and improve our cloud infrastructure. This role combines hands-on technical ownership with team leadership: you will guide DevOps engineers, define platform priorities, improve reliability, and collaborate closely with product and engineering teams.

The System Division develops the Ajax software ecosystem — including OS Malevich, the Video Management System, cloud infrastructure, and client applications. The team ensures the stable operation of all system components as a unified digital platform.

Requirements:

• 5+ years of experience in DevOps, Platform Engineering, SRE, or Cloud Engineering, including 2+ years in a lead or senior ownership role.
• Strong hands-on experience with Kubernetes, preferably AWS EKS, including cluster operations, networking, autoscaling, workload reliability, and security best practices.
  Solid AWS experience: VPC, IAM, EC2, RDS, ElastiCache, Route 53, Lambda, Load Balancers, CloudFront/S3 etc.
• Experience with Infrastructure as Code and configuration management tools, especially Terraform/Terragrunt.
• Experience with GitOps-based delivery using Argo CD or Flux, and Helm/Kustomize for Kubernetes application management.
• Strong Linux and TCP/IP networking knowledge, including troubleshooting production systems.
• Experience with secrets management, access control, and credential rotation practices.
• Strong observability background: metrics, logs, alerts, SLOs, incident investigation, and tools such as Datadog, Grafana, VictoriaMetrics, ELK, or Opsgenie.
• Ability to lead technical discussions, explain trade-offs, set priorities, and drive decisions across engineering teams.
  Strong communication, ownership, task management, and mentoring skills.
   

Desirable:

• Experience with advanced Kubernetes tooling: Karpenter, KEDA, Envoy, Istio/Linkerd or similar.
• Experience with streaming platforms such as NATS or Kafka.
• Operational experience with databases such as MongoDB, MySQL, PostgreSQL, or managed cloud database services.
• Experience with compliance frameworks such as SOC 2.
  Background in FinOps, cloud cost optimization, and infrastructure efficiency improvements.
• Experience with disaster recovery planning, backup strategies, incident response, or production fire drills.
   

Responsibilities:

• Lead, mentor, and grow the DevOps/Platform team: set technical priorities, support hiring, provide feedback, and foster a culture of ownership and engineering excellence.
• Own and evolve the Kubernetes platform: cluster architecture, deployment standards, autoscaling, reliability, security practices, and developer experience.
• Improve CI/CD and GitOps workflows to make deployments safer, more repeatable, and easier for engineering teams.
• Collaborate with engineering, product, security, and operations teams to align infrastructure improvements with business and product needs.
• Identify and remove bottlenecks in the software delivery lifecycle, platform operations, and production support processes.
• Strengthen platform security: access management, secrets management, network controls, compliance requirements, and secure-by-default practices.
• Build and improve proactive observability: monitoring, alerting, dashboards, incident response processes, and post-incident improvements.
• Drive cloud cost optimization initiatives and provide practical recommendations for more efficient infrastructure usage.
• Participate in production support and on-call processes for critical incidents, while continuously improving reliability and reducing operational toil.
   

We offer:

• The opportunity to suggest and implement your own ideas that directly influence the product and its mass production;
• A place in a fast-growing company with a motivated and professional team;
• Competitive salary;
• Medical insurance;
• Corporate English classes;
• The opportunity to participate in Ajax’s internal beta-testing program for security systems;
• Discounts from partner companies;

• Discounts on Ajax products.

   

Ajax Systems is a Ukrainian success story that has grown into a global product. Ajax devices are trusted by more than 4.5 million end users and 330,000 PRO users in over 180 countries. The company provides comprehensive solutions to protect residential and commercial properties of all sizes. Today, Ajax portfolio includes 280 devices for intrusion protection, video surveillance, fire safety, and comfort and automation.

ABOUT THE ROLE
We are looking for a Technical Application Support Engineer to provide backup coverage for our platform and related audience workflows. This is NOT a primary feature development role. 

The person will act as a technical backup and first responder when the Europe-based team is unavailable, helping India and US teams investigate issues, validate system behavior, check logs, inspect API/database state, and escalate with clear technical context when deeper engineering work is required.

Time Overlap (!): 5:00 AM to 2:00 PM or 4:00 AM to 1:00 PM EST

Platform stack:
Scala Pekko HTTP Kafka Pekko Streams MongoDB PostgreSQL, Facebook/Meta, LinkedIn Google Ads Microsoft/Bing Ads, Reddit Pinterest TikTok Twitter/X

RESPONSIBILITIES
• Provide backup technical support for internal API and related workflows
• Investigate production and staging issues using API responses, logs, metrics, Kafka state, MongoDB, and PostgreSQL
• Understand and trace the core system flow related to external platform integrations
• Investigate why entities failed to create/update, synchronize, or retrieve reports correctly
• Troubleshoot platform-specific issues (Facebook/Meta, LinkedIn, etc.)
• Validate common token/auth issues including expired user tokens, missing permissions, and platform account
mapping problems
• Use Kibana, Grafana, Prometheus, Graphite, Kafka metrics, and database queries to support investigations
• Follow runbooks for safe operational checks and simple remediation steps
• Document findings clearly and escalate with enough context for engineering teams to act quickly
• Work closely with teams in India, Europe, and the US

REQUIRED QUALIFICATIONS
• 3+ years in application support, production support, technical operations, backend QA, SRE-lite, or similar roles
• Strong understanding of REST APIs, JSON, HTTP status codes, and backend request flows
• Hands-on experience reading logs and investigating production issues
• Practical experience with MongoDB and SQL/PostgreSQL for read-only investigation
• Basic working knowledge of Kafka or event-driven systems
• Familiarity with Kubernetes-based applications at support level
• Ability to use dashboards and observability tools such as Kibana, Grafana, Prometheus, or similar
• Strong troubleshooting mindset with clear written communication in English
• Ability to work with distributed teams across India, Europe, and the US

PREFERRED QUALIFICATIONS
◆ Experience supporting Scala, Java, or JVM backend systems
◆ Familiarity with Apache Pekko or Akka HTTP / Streams

◆ Experience with advertising platforms or marketing APIs
◆ Familiarity with OAuth, refresh tokens, access tokens, system users, and platform permissions
◆ Basic understanding of CI/CD, Jenkins, GitHub Actions, Docker, and Kubernetes deployments
◆ Experience creating support runbooks and incident summaries

WHAT SUCCESS LOOKS LIKE
After onboarding, this person should be able to:
• Understand the platform request/event flow end-to-end
• Check whether a problem is in API validation, Kafka processing, event handling, MongoDB/PostgreSQL state, external
platform API, or something else
• Identify common platform integration differences
• Answer basic "what happened?" questions without waking up the European owner
• Escalate only when deeper engineering changes or platform-specific decisions are needed
• Maintain useful troubleshooting documentation for repeated issues

ABOUT PROJECT

We are a leading technology company that uses real-world data in real-time to optimize campaign performance and revolutionize health decision-making. Leveraging proprietary datasets and methodology, we target healthcare professionals and patients with an unprecedented level of accuracy—delivering unparalleled results to the clients we serve.

🧩 About the company
We turn marketing into a powerful tool that helps businesses win in their market. We built a new type of platform: a marketplace for future customers. On our site, businesses buy leads the same way they buy products in an online store. They can see key details about each lead before they pay, which gives them clear information, control over what they buy, and more predictable results. We are the top lead marketplace in the USA, and we are growing fast.

🧩 Role overview
We are looking for a cold call team director to spin up a call center that will be used to supplement existing volume of call leads we get from vendors, help us closer understand issues our vendors go through, and obtain leads in historically more difficult regions than our call providers have been supplying us with.

🧩 What You’ll Be Doing:

• Build the cold calling operation from scratch, including structure, hiring plan, and processes
• Hire, train, and manage callers, team leads, and QA as the team scales from 2–3 to 30–50+ people
• Design and optimize dialing strategy, number rotation, warm-up, and deliverability to maintain high connect rates
• Set up and improve lead qualification standards to ensure every lead is marketplace-ready and compliant
• Monitor performance metrics (connect rate, leads per caller, rejection rate, cost per lead) and act on them daily
• Work closely with product, data, and engineering teams to integrate dialer, CRM, and lead pipelines
• Run real-time coaching and performance management during US calling hours to improve team output and quality

🧩 What Makes You a Strong Fit:

• 5+ years of hands-on experience in cold calling operations, preferably in real estate wholesaling
• Proven track record building or scaling outbound calling teams (10–50+ callers) from scratch
• Deep understanding of dialing systems, number reputation, spam flagging, and call deliverability
• Experience working with CRMs and dialers such as ReadyMode, Podio, GoHighLevel, or similar
• Strong analytical mindset - comfortable managing performance through metrics and making fast decisions
• Ability to personally execute (set up campaigns, run calls, debug issues) - not just manage
• Advanced English (daily communication with US-based teams, reporting to leadership, live coaching)
• Availability to work overlapping US business hours and manage operations in real time

🧩 Bonus if you have:

• Experience in US real estate wholesaling or motivated seller lead generation
• Experience managing offshore teams (Philippines, Egypt, Pakistan, Latin America)
• Familiarity with TCPA compliance and state-level calling regulations
• Background in list stacking, data sourcing, and lead generation strategy
• Russian or Ukrainian language skills

We are seeking a hands-on Tech Lead / Solution Architect to shape and scale our next-generation iGaming platform. This role blends deep technical expertise, architectural design, and leadership skills to ensure our systems meet the demands of high-volume, real-time, and regulated environments.

Requirements:

• Proven experience in building Monolithic, Microservices, and Event-driven architectures, including decomposition of legacy systems into scalable microservices.
• Designing and implementing high availability (HA), fault-tolerant, and load-balanced solutions for large-scale, high-traffic applications.
• Orchestration Engines: Hands-on experience with workflow orchestration platforms (e.g., Camunda, Temporal) for process automation and distributed workflows.
• Strong expertise in designing scalable database schemas and managing both relational (PostgreSQL, MySQL) and NoSQL (MongoDB, Redis) systems with focus on performance optimization and horizontal scaling, Rabbit, Kafka.
• Knowledge of VMware-based infrastructure as well as modern container orchestration platforms (Docker, Kubernetes). Nice to have: Apache Spark, Hadoop.
• Building robust CI/CD pipelines using GitLab CI/CD, enabling continuous delivery and deployment across complex environments.
• Practical development skills in PHP (Laravel, Laravel Octane), Node.js, JavaScript, Next.js, React. 
• Setup and integration of monitoring/alerting systems (Prometheus, Grafana, Kibana, ELK Stack, Sentry) for proactive issue detection and performance analysis.
• Deep understanding of automation-first approaches, infrastructure as code, and collaboration between development and operations.
• Proven ability to lead teams, mentor engineers, and align technical decisions with business goals. Skilled at translating business requirements into efficient technical solutions.
• Experience in using AI technologies

Nice to Have:

• Experience analyzing technical risks and defining mitigation strategies.
• Expertise in building PoC (Proof of Concept) and MVP (Minimum Viable Product) to validate business ideas quickly.
• Familiarity with architectural modeling tools (Lucidchart, Draw.io, C4 Model).
• Experience in multi-region deployments and scaling distributed systems across hybrid environments (cloud + on-premise VMware setups).
• Background in designing mission-critical financial, e-commerce, or enterprise-grade systems with strict SLAs and compliance requirements.

Responsibilities:

• Evaluation and clarification of incoming functional business requirements from customers and business analytics in specification format;
• Creation of technical specifications following functional business requirements;
• Building of services and infrastructure architecture according to technical specifications;
• Control of compliance of new solutions to the general architecture;
• Technical risks evaluation for services performance and infrastructure, and potential solutions development for mitigation;
• Services and infrastructure evolving and optimization;
• Performance, security, and stress testing planning and supervision found vulnerabilities and issues resolving;
• Architecture and technical solutions presentation and discussion with technical Leads and members;
• Supervision of technical solutions compliance to project requirements;
• Maintenance of technical documentation and development regulations;
• Requirements analysis, technical design, scope decomposition, and estimation with the technical teams;
• New projects and services of the company evaluation for compliance with the existing regulations and methodologies;
• Mentor development team members and Senior technical staff in the architecture area;
• Establishment and development of new technological practices for the company.

What we offer:

• Competitive salary;
• Remote work in a flexible environment;
• 20 working days of paid vacation and education projects;
• Great product with our software solution;
• Opportunity for growth at professional levels, attending top industry events and conferences, and international workshops at our competence centers.

Don’t delay! Send your CV right now and join our highly professional and ambitious team!

We are seeking a highly skilled Node.js expert, who excels as a collaborative team member. The role goes beyond coding, encompassing responsibilities such as handling feature aspects, specifications, technical design, development, testing, documentation, and maintenance.
 

Customer

Our client has rapidly become one of Europe’s most swiftly expanding FinTech companies. They oversee all aspects of financial operations, from generating virtual cards to facilitating wire transfers and maintaining customer account balances. As a payment institution, our client provides a platform that integrates financial services into its product, offering features such as account management, card payments, bank transfers, and additional services.

Requirements

• Over 5 years of experience in Back-end software development
• At least 3 years of experience with TypeScript
• Over 4 years of experience working with Node.js
• Experience with AI Agentic systems and MCP (Model Context Protocol) integrations
• Strong experience in designing distributed and secure systems
• Good Front-end development skills
• Good understanding of microservices architectures
• Experience in designing, building, and maintaining APIs
• Experience in building and consuming REST and/or GraphQL APIs
• Familiarity with DevOps practices
• Strong experience working with AWS
• Good knowledge of testing best practices
• At least an Upper-Intermediate level of English

Would be a plus

• Experience with modern JavaScript and ES6 libraries