Jobs at Djinni

Job Description

Required Experience

Readiness to work till 8PM Kyiv time

• BS degree in Computer Science field or equivalent hands-on experience
• 5+ years of hands-on experience with C#/.NET
• Experience with containerized microservices and serverless architectures.
• Experience with distributed systems and related concepts
• Experience with SQL and NoSQL datastores including but not limited to MSSQL, Postgres, Mongo, MySQL, and Elasticsearch
• Experience with .NET WCF Services, ASP.NET
• Hand-on experience with cloud providers such as AWS
• Experience with Front End Development using ReactJS is a plus
• Focused, dependable, detail-oriented and hands-on – completes tasks quickly and thoroughly

Job Responsibilities

Position Overview

• Design, develop, and maintain software applications using .NET Core and C#
• Collaborate with cross-functional teams to gather requirements, understand business needs, and translate them into technical solutions
• Implement and integrate with relational and NoSQL databases such as PostgreSQL and Mongo
• Leverage AWS primitives like S3, RDS, SQS, Elasticache, etc - to build scalable and reliable applications
• Containerize applications using Docker for consistent deployment across environments
• Write clean, maintainable, and well-documented code following best practices and coding standards
• Participate in code reviews and ensure adherence to quality standards
• Troubleshoot and resolve technical issues, bugs, and performance bottlenecks
• Stay up to date with the latest trends, technologies, and industry best practices

Department/Project Description

Our customer is a global leader in digital media and entertainment services across film, video and online content from capture to consumption.

Since 1915, our customer has been the trusted partner for the world's most successful Hollywood studios, independent film companies, TV networks, exhibitors, advertisers and others, offering best-in-class solutions in production, post production, distribution, asset and workflow management and new digital solution-based technologies.

This position is ideal for individuals who have the drive and desire to ‘make things’. It requires a highly motivated individual with attention to details and a hunger to learn and solve problems.

The family-style company is looking for a talented .NET Developer to join our team. If you are looking for an awesome team, send us your CV!

We are expanding our development team and looking for an experienced Senior .NET Developer who follows classic engineering practices and actively uses modern AI tools (GitHub Copilot / ChatGPT / LLMs) to speed up routine tasks while maintaining high quality and clean architecture.

What We’re Looking For:

• 8+ years of commercial experience with .NET / C#
• Strong knowledge of software architecture, design patterns, performance, and debugging
• Confident use of GitHub Copilot / ChatGPT as a daily development accelerator
• Ability to review, debug, optimize, and productionize AI-generated code
• Strong fundamentals and ability to write clean code with or without AI assistance
• Structured and analytical thinking
• Self-driven mindset and ownership of results
• Passion for learning and continuous improvement
• Good spoken English (Upper-Intermediate+)
• Respectful communication and willingness to support teammates

We also expect you to be a really self-driven person because micromanagement and total control are not about UKAD. We trust engineers to make technical decisions, choose the right tools, and take responsibility for the outcome.

Technical skills you’ll need:

• C#, .NET 6/7/8
• ASP.NET Core / ASP.NET MVC
• MS SQL + NoSQL
• Entity Framework / EF Core
• REST API development & integrations
• Understanding of clean code, architecture, and best practices
• Strong experience with AI-assisted development tools (GitHub Copilot / ChatGPT) and ability to review & productionize AI-generated code

Will be a plus:

• Prompt engineering / creating reusable prompts
• Automated test generation using AI tools
• Experience with React
• Practical experience with Azure

Your typical tasks list:

• Develop and maintain web applications using ASP.NET Core / MVC
• Build scalable backend services and APIs
• Work with relational and NoSQL databases
• Write clean, maintainable, well-tested code
• Review code (including AI-generated code) and ensure production quality
• Participate in architecture decisions and technical discussions
• Collaborate closely with the team in a friendly and supportive environment

What we offer:

• Sane and polite, but effective management
• The best corporate culture (according to our teammates' opinions)
• Competitive salary and other stuff
• Remote work, full-time
• Becoming not just another developer, but a part of UKAD with unique value and long-term relationships.

Some facts about UKAD to help you make a decision:
Since 2022, we have been steadily expanding cooperation with foreign partners.
UKAD combines the benefits of a small company (no bureaucracy, easy access to executives) with stable growth and long-term opportunities.
We work as a tech partner, not just a vendor - we choose clients who respect developers.
UKAD is one of the leading employers in Kharkiv, according to DOU.

Aren't we the company you're looking for?

Our family-style company is looking for a Senior DevOps Engineer to build a new greenfield cloud platform from the ground up. You’ll design, implement, and operate a production-grade environment that supports multiple teams and environments across the full delivery lifecycle. This role is about ownership, autonomy, and building a reliable foundation with long-term impact.

About the Role
Our client, based in Munich, Germany, is looking for an experienced Senior DevOps Engineer to lead the architecture and implementation of a robust Azure Kubernetes (AKS) platform supporting multiple environments across the full software delivery lifecycle.

This is a hands-on individual contributor role with high autonomy and direct impact. You will take responsibility for building and evolving the platform using Infrastructure as Code, establishing GitOps-driven workflows, and embedding security best practices into every layer of the system. Success in this role means delivering a resilient, production-grade platform that balances speed, reliability, and long-term maintainability.

What you’ll do:

• Design and implement a multi-environment AKS platform on Azure with supporting infrastructure using Terraform
• Define and enforce infrastructure patterns, module structure, and deployment pipelines
• Set up and operate GitOps-based delivery workflows (Argo CD)
• Integrate observability tooling (Datadog) for metrics, logs, and traces
• Implement security best practices: RBAC, network policies, secrets management, supply chain security
• Manage Kubernetes cluster operations: upgrades, scaling, troubleshooting, hardening
• Collaborate with development teams to enable self-service platform capabilities.

What We’re Looking For (Must Have):

• 5+ years of professional experience in DevOps, Platform Engineering, or SRE roles
• Strong hands-on experience with Terraform (module design, state management, CI/CD for infrastructure)
• Production experience operating Kubernetes (AKS preferred; EKS/GKE acceptable if Azure fundamentals are solid)
• Solid understanding of Azure cloud services (networking, identity, compute, storage)
• Experience with GitOps tooling (Argo CD or Flux)
• Strong knowledge of Kubernetes networking, RBAC, and security hardening
• Experience with observability stacks (Datadog, Prometheus/Grafana, or similar)
• Familiarity with CI/CD pipelines and deployment automation
• Comfortable working with Git as the single source of truth for infrastructure and configuration.

Nice to have:

• Experience with Terragrunt, Spacelift, or similar Terraform workflow tooling
• Familiarity with Azure Entra ID (formerly Azure AD) and its Kubernetes integration
• Experience with service mesh technologies (Istio, Linkerd, Cilium)
• Knowledge of policy-as-code frameworks (OPA/Gatekeeper, Kyverno)
• Experience with container image security (including signing, scanning, and admission control) is important. A background in internal developer platforms and familiarity with SOC 2 or ISO 27001 in cloud-native environments would be a strong plus.

What We Are Looking For in a Candidate
Beyond technical skills, we value:

• Architectural thinking - ability to make and justify design decisions with trade-offs in mind
• Security-first mindset - defaults to secure; thinks about attack surfaces and least privilege naturally
• Pragmatism - builds what's needed, avoids over-engineering, focuses on maintainability
• Clear communication - can explain complex infrastructure concepts to both technical and non-technical stakeholders
• Ownership - takes responsibility for the platform end-to-end, from design through operations.

Our hiring process includes the following steps:

1. An initial introduction call with our recruiter team
2. A practical test task (take-home, ~4 hours) - candidates design a conceptual AKS platform architecture. No working code required; focus is on approach and thought process
3. An interview with our C-level team
4. A final technical interview with our client (~60-90 min) - discussion of the design task, deep-dive into past experience, and scenario-based questions
5. Job offer.

What we offer:

• A really promising long-lasting project (you will be proud of yourself)
• Sane and polite, but effective management
• The best corporate culture (according to our teammates' opinions)
• Competitive salary and other stuff
• Remote work, full time
• Becoming not just another team member, but a part of UKAD with unique value and long-term relationships.

Some facts about UKAD to help you make a decision:
During 2022-2025, we only increased cooperation with our foreign partners
UKAD combines benefits of family-sized companies, like no bureaucracy, easy access to the executives, with sustainable growth and vast opportunities
Our company is strong enough to be not just a vendor but a tech partner. We can afford to choose customers that respect developers
UKAD is one of the leading employers in Kharkiv, according to DOU.

Aren't we the company you're looking for?

IvorySoft is a people-first software engineering and IT consulting company. We provide complex technological solutions for startups and businesses from the USA, UK, Nordic countries, and Canada.

To support the growth of a fast-scaling hospitality startup, we are looking for a Python + React Developer to join the team and help revolutionize the dine-in experience.

ABOUT PROJECT:

Web-based solution that lets restaurant guests view, split, and pay their bill directly from their phone - no app download needed -while helping restaurants reduce staff workload, increase tips, and turn tables faster.

RESPONSIBILITIES:

👨‍💻Develop and improve the core platform used in real restaurants, bars, and cafes.

👨‍💻Create new features like loyalty systems, admin dashboards, analytics, and upsell flows.

👨‍💻Build integrations with POS systems (e.g., unTill, POVIS).

👨‍💻Improve internal tools to support business operations.

👨‍💻Collaborate closely with the founding team on product and architecture decisions.

👨‍💻Take initiative and ownership from day one.

REQUIREMENTS:

💻Experience with Python, FastAPI

💻Experience with React

💻Experience with POS-systems (as a plus)

💻Nice to have: TypeScript, JavaScript, CSS, Next.js

💻Bonus: Experience with PostgreSQL

💻Ability to work independently and communicate effectively in a remote team

💻Proactive mindset, strong sense of responsibility, and eagerness to grow with the product

• Project Description:

  The SEM product is embedded within the Geosciences Suite of Applications. This application has multiple views consisting of both 2D and 3D visualizations. The current data visualization is not sufficient for what we would like it to be. This role is expected to work with the lead and the product owner to understand the current shortcomings, investigate and research potential solutions, propose these solutions to the teams, and then work on the implementation of the agreed upon work. To get to this stage, the developers will also need to learn the inner workings of the visualization framework within Geoscience.
   

• Responsibilities:

  • Design, develop, and maintain graphics-intensive modules within the Geoscience platform using Java and OpenGL.
  • Implement advanced 2D and 3D visualization features for seismic, geological, and geospatial data.
  • Optimize rendering performance and ensure cross-platform compatibility, particularly in Linux environments.
  • Collaborate with geoscientists and software engineers to translate domain-specific requirements into technical solutions.
  • Participate in code reviews, testing, and documentation to maintain high-quality software standards.
  • Stay updated with the latest developments in graphics technologies and geoscience applications.
   

• Mandatory Skills Description:

  • Bachelor's or Master's degree in Computer Science, Geoscience, or a related field.
  • 5+ years of professional experience in C++ development with a focus on graphics programming.
  • Proficiency in OpenGL and related graphics libraries for rendering complex datasets.
  • Strong experience working in Linux environments, including shell scripting and system optimization.
  • Excellent problem-solving skills and the ability to work collaboratively in a multidisciplinary team.
   

• Nice-to-Have Skills Description:

  • Experience with geoscience software platforms.
  • Familiarity with geoscience data formats and visualization techniques.
  • Knowledge of additional programming languages such as Python, Java.
  • Understanding of GIS technologies and spatial data analysis.
  • Experience with agile development methodologies and version control systems like Git

We are looking for a passionate JavaScript / TypeScript Game Developer to join our game development team and work on engaging slot and table games. You will be involved in the full development lifecycle — from concept to release — collaborating closely with cross-functional teams to deliver high-quality gaming experiences.

Key Responsibilities

• Develop, test, and release slot and table games across the full development cycle.
• Collaborate daily with QA and backend teams to ensure smooth integration and delivery.
• Implement gameplay logic, graphics, animations, and sound using Cocos Creator, with a strong focus on clean and efficient code.
• Work closely with the Team Lead, providing regular progress updates and proactively seeking guidance when needed.
• Build new game features and continuously improve existing projects.
• Ensure compliance with architecture guidelines, functional requirements, and industry standards.
• Support team members by providing technical guidance and validating implementation quality.
• Track, update, and report task progress using Jira.

Requirements

• 3+ years of professional experience in game development.
• Strong proficiency in JavaScript and TypeScript.
• Hands-on experience with Canvas and WebGL.
• Solid understanding of design patterns, OOP, and MVC principles.
• Experience with Cocos Creator (preferred) or other game frameworks such as Pixi.js, Phaser, PlayCanvas, Three.js.
• Experience with Spine is a strong plus.
• Good knowledge of data structures, algorithms, asynchronous programming, dynamic typing, and performance optimization.
• Familiarity with modern JavaScript frameworks (MV* concepts).
• Strong understanding of HTML5 and its latest features.
• Experience with debugging and profiling browser applications.
• Confident use of Git and version control workflows.
• Intermediate or higher English level.
• Strong communication and teamwork skills.

Nice to Have

• Experience in slot game development within the gambling industry.
• Familiarity with Gulp or Webpack.
• Knowledge of programming languages beyond JavaScript / ActionScript.
• Experience with cross-browser and mobile web development.
• Understanding of WebGL shaders.

• Project Description:

  We are seeking a highly motivated and technically proficient QA Automation Engineer to join our dedicated testing team. You will play a crucial role in ensuring the successful and high-quality delivery of software products for our client, a prominent American multinational automaker.
  This position offers a challenging and dynamic environment within a multicultural international team, demanding strong problem-solving skills and a proactive approach.
   

• Responsibilities:

  Design, develop, and execute robust automated test scenarios on a daily basis, utilizing Python as the primary scripting language.
  Framework Management: Actively contribute to a new and maintain the existing automation frameworks
  Ensure comprehensive test coverage by writing detailed test scenarios
  Engage in specialized testing of automotive systems, including validation of in-vehicle components
  Work closely with developers, business analysts, and product owners within the Scrum framework, actively participating in sprint planning and daily stand-ups.

   

• Mandatory Skills Description:

  Prior work with embedded or automotive systems, especially in the context of multi-ECU scenarios.
  Proven experience developing, debugging, and maintaining Python code for automated testing.
  Thoroughly analyze logs, and quickly resolve issues within automated testing pipelines.
  Proficient in using Visual Studio Code (VSCode) with relevant extensions (Python, Cucumber, Copilot).
  Experience managing Python virtual environments and dependencies.
  Proficient with Git for version control and JFrog Artifactory for artifact management in a collaborative, automated test environment.
  Ability to read and follow technical documentation in English.
  Strong communication skills for collaboration with developers, testers.
  Exposure to automotive communication protocols (e.g., CAN, LIN, Ethernet).
   

• Nice-to-Have Skills Description:

  Experience with test automation for automotive multimedia, connectivity, and driver-assistance features.
  Hands-on expertise with modern test automation frameworks, especially those supporting Behavior-Driven Development (BDD) and keyword-driven testing.
  Skilled in translating requirements and Gherkin scenarios into robust, executable automation logic.
  Ability to analyze, optimize, and troubleshoot both hand-written and AI-generated Python test scripts for reliability and maintainability.
  Experience integrating automated tests with Hardware-in-the-Loop (HiL) and Software-in-the-Loop (SIL) benches via industry-standard APIs (such as ASAM HIL).
  Hands on experience with testing of ADAS features such as Camera, Parking Assist, and Driving Assistance modules.
  Experience with requirements gap analysis, traceability, and coverage reporting for ADAS or other safety-critical automotive systems.

About the client:

Our customer is the European online car market, with over 30 million monthly users and a presence in 18 countries. As a Senior FullStack Engineer, you will play a pivotal role in shaping the future of online car markets and enhancing the user experience for millions of car buyers and sellers.
 

Responsibilities:

• Developing fast, high-traffic public-facing websites
• Explore new technologies and help the team to use them
• Work using AI tools and apply them to the SDLC
• Following software development best practices while delivering the work
• Following testing principles while testing your own code to ensure production readiness
• Follow the philosophy of: you-build-it-you-run-it (be responsible for the SDLC processes) 
   

Requirements: 

• 5+ years developing reliable, highly available, and scalable software systems
• Strong understanding of software architecture and design patterns
• Firm grasp of clean code principles and coding standards
• Strong proficiency using AI tooling, such as ChatGPT/Codex, for rapid development
• Experience integrating AI tooling into your development environment for streamlined usage
• Experience with AI Frameworks like Vercel AI SDK, LangChain, etc.
• Strong proficiency with backend development (Typescript, Node.js, C#)
• Strong proficiency with SQL & NoSQL datastores (GraphQL, Redis)
• Strong proficiency with frontend development (HTML, CSS, JavaScript)
• Strong proficiency with component-based frameworks and SSR (Next.js/React, Vue.js, Angular)
• Hands-on experience developing and maintaining 3rd party content management systems
• Knowledge of modern cloud infrastructures and tools, such as AWS, Terraform, and Docker
• Experience with APIs and developing in a service-based application environment
• Experience building optimized UIs for performance
• Proficiency with version control systems such as Git
• Experience working within a formal CI/CD pipeline
• Experience with logging, monitoring, and alerting services like Datadog, Newrelic
• Solid approach to testing and ensuring quality of code, Unit testing, backend, and frontend
• At least Upper-intermediate English level
• Working for the North America timezone (ET) is preferable (till 21:00 Kyiv time)

We are an international recruitment agency specializing in IT and fintech talent acquisition across Europe. With a distributed team of recruiters and researchers, we connect top professionals with leading companies.

Position Overview:
We are looking for a proactive Lead Generation Specialist to join our team. In this role, you will be responsible for engaging with pre-identified clients, initiating first contact, handling objections, and ensuring smooth follow-up until the client is ready for an interview. 

You will play a key part in building trust and interest from client.

Key Responsibilities:

• Reach out to candidates provided by the sourcing team via LinkedIn, email, messengers, and other available channels.
• Follow up consistently to maintain client engagement and ensure responses.
• Handle objections and address client concerns to increase interest in the opportunity.
• Nurture communication with clients and build rapport until they agree to a call.
• Keep structured records of communication and update our ATS/CRM.

• Collaborate with team members to ensure a smooth handover of warm clients.

   

Requirements:

• Previous experience in client outreach, lead generation, inside sales, or a similar role.
• Strong communication and persuasion skills, with the ability to handle objections.
• Experience working with LinkedIn, email tools, and CRM/ATS systems.
• Good written and spoken English (Upper-Intermediate or higher).
• Proactive, persistent, and result-oriented mindset.

We are looking for a Junior Recruiter to join our team. 

You will work with pre-selected candidates provided by the team and focus on communication, evaluation, and coordination.

Your Responsibilities

• Conduct video calls with candidates provided by the team
• Present job opportunities clearly and professionally
• Ask structured questions to understand candidate experience, motivation, and expectations
• Evaluate candidates according to predefined criteria
• Update candidate information in the internal system (CRM / ATS)
• Maintain clear and friendly communication with candidates throughout the process
• Coordinate next steps with senior recruiters or hiring managers

What You Will NOT Do

• No candidate sourcing
• No LinkedIn search or outreach
• No cold messages

Requirements

• Good spoken English (at least upper-intermediate level)
• Clear communication skills and confidence in video conversations
• Ability to follow scripts, guidelines, and processes
• Basic computer skills and attention to detail
• Interest in recruitment and working with people

We Offer

• Full onboarding and training
• Clear processes and support from senior recruiters
• Opportunity to grow
• Friendly and professional team environment
• Stable workload without sourcing pressure

Operations Manager - DTC Brain Health (Build Systems, Not Just Spreadsheets)

TLDR: First ops hire at a fast-growing brain health brand (20-30% MoM). Multi-region complexity (US + EU), real ownership, learn DTC/marketing from ex-Google/Uber/Amazon founders. Backed by Andrew Bustamante (CIA → brand partner).

The Opportunity

Most ops roles are babysitting spreadsheets and putting out fires. This one = building the entire operational engine of a premium DTC brand from the ground up.

Axolt is scaling fast (20-30% month-over-month), which means:

• High-stakes complexity: Multi-region fulfillment (US + EU), custom kitting (47-ingredient formula), international compliance, subscription logistics
• Real ownership: You're hire #1 on ops. Every system you build becomes the foundation. Every efficiency you find flows straight to the bottom line.
• Founder access: Work directly with founders who scaled marketing at Google, Uber, and Amazon. Learn performance marketing, brand positioning, and growth strategy while running ops.

You won't just coordinate vendors. You'll own margins, fix broken systems, and make critical calls.

What You'll Own

Supply Chain & Fulfillment (US + EU)

The messy stuff that actually matters:

• Manage manufacturers, warehouses, and 3PLs across two continents
• Coordinate custom packaging and kitting (multiple SKUs assembled per order)
• Own inventory forecasting for subscriptions + one-time purchases
• Navigate international shipping, customs, VAT, and compliance
• Drive COGS down - we have premium pricing but high costs. Finding 10% here changes the business.

This isn't vendor management. It's a supply chain strategy for a product people rely on daily.

Customer Experience

Operations and CX are the same thing when you're small:

• Own support workflows (refunds, replacements, reships, edge cases)
• Handle subscription management issues
• Maintain premium support standards (our customers are high performers - they expect excellence)
• Feed customer insights back into logistics, product, and marketing decisions

Goal: Fewer fires. Faster resolutions. Better trust.

You're A Fit If...

✅ You've done hands-on ops/fulfillment work at a DTC brand (supplements, food, CPG - bonus points)

✅ You're an efficiency obsessive - you love dashboards, automation, AI tools, and finding the 80/20

✅ You stay calm when things break (and they will - multi-region ops = constant curveballs)

✅ You communicate clearly in English (written + async - we're remote)

✅ You want to learn the business, not just run logistics - founders will teach you marketing, growth, strategy

Nice to have:

• Experience with Shopify, subscription models, or international fulfillment
• Passion for health, performance, cognitive optimization
• You've scaled something scrappy into something structured

You're NOT a fit if:

• You need defined processes handed to you (you're building them)
• You want a 9-5 with zero ambiguity
• You think ops is just about "keeping things running"

Why This Role Is Different

🧠 Mission you can believe in - Axolt exists because the founders experienced burnout building and scaling other businesses. This isn't another supplement brand. It's a systemic solution to a problem that's only getting worse.

🚀 Learn from the best - Founders led growth at Google, Uber, Amazon. You'll see how performance marketing, brand positioning, and customer acquisition actually work - from the inside.

🎯 First ops hire = define the playbook - Every system you build, you own. No bureaucracy. No "this is how we've always done it."

🤝 Backed by Andrew Bustamante - Former CIA officer, 1M+ followers, early brand ambassador. You'll see how high-level partnerships and brand-building work in real time.

🌍 Remote-first, founder-led - Work from anywhere. Async-friendly. Direct access to decision-makers.

📈 Path to more - Nail this and you're not just "ops" - you're a core part of scaling a brand with real momentum.

What We Offer

• Growth: Direct mentorship from founders with 15+ years scaling global brands
• Flexibility: Fully remote (US/EU timezone preferred for overlap)
• Impact: Your work directly affects customer experience, margins, and growth velocity

How to Apply

Send a short intro (email, Loom, or doc) covering:

• Relevant experience - DTC ops, supply chain, fulfillment (examples > titles)
• Why Axolt resonates - What about the mission or problem connects with you?
• Problems you love solving - Operational chaos? Efficiency gains? Customer issues?
• Examples of ownership - Times you built something from scratch or fixed something broken

Links, Loom videos, or brief case examples >> formal resumes.

We're looking for someone who gets excited by complexity, not scared by it.

We are looking for an experienced Senior Java Engineer who goes beyond standard CRUD APIs and lives in the world of information retrieval.
 

Our customer is a Fortune 500 company. As a leading business-to-business organization, more than 3.2 million customers rely on its products in categories such as safety, material handling, and metalworking, along with services like inventory management and technical support. ​
 

In this role, you will act as the bridge between our core Java application architecture and our specialized search infrastructure. You will be responsible for the entire search lifecycle: from designing how data is ingested and indexed, to building the Java APIs that query that data, and crucially, tuning the relevancy algorithms that ensure our users find exactly what they are looking for, instantly. The ideal candidate has deep roots in the Apache Solr ecosystem but is also ready to embrace modern cloud-native search via AWS OpenSearch. Whether you are maintaining critical legacy Solr clusters or architecting new solutions on AWS, your goal is to make data findable, fast, and relevant.

Technology stack: Java/Spring Boot, Apache Solr (Legacy/Core), AWS OpenSearch (Modern/Growth), SQL DB, Kafka 
 

Responsibilities:

• Design, develop, and maintain high-performance backend Java services (primarily Spring Boot) that integrate with search engines.
• Build complex search features for the frontend, including faceted navigation (filtering), multi-tenant searching, real-time autocomplete/typeahead, and spell-checking suggestions.
• Utilize Java client libraries (such as Solr or AWS SDKs) to construct efficient, programmatic queries.
• Take ownership of the search schema design, deciding how complex data structures should be analyzed, tokenized, and stored for optimal retrieval.
• Build robust ETL pipelines in Java (potentially using Kafka or other messaging systems) to synchronize data from primary SQL databases into the search indices in near real-time.
• Configure analyzers, stemmers, and tokenizers to handle nuances in human language.
• Diagnose slow queries, analyze search logs, and optimize both Java application code and search engine configurations for low-latency performance.
• Maintain and optimize existing on-premise or cloud-hosted Apache Solr installations.
• Play a key role in designing hybrid strategies or migration paths from legacy Solr systems to managed AWS OpenSearch environments.

Requirements: 

• 5+ years of professional experience in backend software development using modern Java (Java 8+, Spring Boot ecosystem).
• Strong, demonstrable experience with Search Technologies. This means either:
  • Hands-on production experience configuring, managing, and developing against Apache Solr (understanding schema.xml, solrconfig.xml, Zookeeper integration).
  • OR deep foundational knowledge of Lucene-based search concepts (inverted indices, analysis chains, TF-IDF/BM25 scoring logic) with the ability to quickly apply that to Solr.
• Hands-on experience with AWS OpenSearch (or Elasticsearch) in a managed cloud environment.
• Experience with data modeling in relational databases (PostgreSQL, MySQL, Oracle).
• Strong understanding of RESTful API design principles.
• Preferred Qualifications:
  • Experience architecting zero-downtime migrations from self-hosted Solr to managed cloud search services.
  • Experience with event-driven architecture and streaming tools like Apache Kafka for real-time indexing.
  • Familiarity with containerization (Docker, Kubernetes) and CI/CD pipelines like Jenkins or GitLab CI.

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 build a modern fintech platform integrating with international payment providers.

The system processes real financial transactions and includes:

.NET 10 backend services

ASP.NET Core APIs

Real-time updates via SignalR

MS SQL data layer

Razor / Blazor UI

Vue.js components

Azure-based infrastructure

We continuously upgrade the stack and avoid legacy technologies.

What you will do

Develop backend services using C# and .NET 10

Design and implement REST integrations with payment providers

Handle webhooks, callbacks, and signature validation

Implement retry, idempotency, and error-handling strategies

Work with MS SQL (query optimization, indexing)

Develop UI using Razor / Blazor and Vue.js

Implement real-time features with SignalR

Contribute to architectural and performance improvements

Requirements

Must have

Strong C# knowledge

Experience with modern .NET (Core / 6+; .NET 8+ preferred)

Solid REST API design experience

Experience with MS SQL

Experience with Razor or Blazor

Experience with Vue.js

Understanding of authentication (JWT, OAuth) and API security

English — Intermediate+

Nice to have

Experience with .NET 9/10

Azure experience

Docker

Experience with fintech or payment integrations

Experience with distributed systems

We are looking for you!
 

As we continue to design and build data-driven solutions across diverse domains — we’re seeking a Data Engineer who thrives on transforming data into impactful insights. If you’re passionate about crafting robust architectures, optimizing data pipelines, and enabling intelligent decision-making at scale, we’d love to have you join our global team and shape the next generation of data excellence with us.

Contract type: Gig contract.

Skills and experience you can bring to this role
 

Qualifications & experience:
 

• 3+ years of intensive experience as a Data Engineer or in a similar role, with a demonstrable track record of leading large-scale projects;
• Mastery in Python and data stack (NumPy, Pandas, scikit-learn);
• Good Understanding of SQL/RDBMS and familiarity with data warehouses (BigQuery, Snowflake, Redshift, etc.);
• Experience building ETL data pipelines (Airflow, Prefect, Dagster, etc);
• Experience with modern Scrum-based Software Development Life Cycle (SDLC);
• Strong communication skills to explain technical insights to non-technical stakeholders.

Nice to have:

• Hands-on experience with Python web stack (Fast API / Flask);
• Proven expertise in designing and optimizing large-scale data pipelines;
• Comprehensive understanding of data governance principles and data quality management practices;
• Understand marketing and media metrics (i.e., what conversion rate is and how it is calculated).
• Exceptional leadership, communication, and collaboration skills, with a knack for guiding and nurturing teams.
   

Educational requirements:

• Bachelor’s degree in Computer Science, Information Systems, or a related discipline is preferred.

What impact you’ll make 
 

• Lead the design, development, testing, and maintenance of scalable data architectures, ensuring they align with business and technical objectives;
• Spearhead the creation of sophisticated data pipelines using Python, leveraging advanced Snowflake capabilities such as Data Shares, Snowpipe, Snowpark, and more;
• Collaborate intensively with data scientists, product teams, and other stakeholders to define and fulfill intricate data requirements for cross-channel budget optimization solutions;
• Drive initiatives for new data collection, refining existing data sources, and ensuring the highest standards of data accuracy and reliability;
• Set the gold standard for data quality, introducing cutting-edge tools and frameworks to detect and address data inconsistencies and inaccuracies; and
• Identify, design, and implement process improvements, focusing on data delivery optimization, automation of manual processes, and infrastructure enhancements for scalability.

What you’ll get 
 

Regardless of your position or role, we have a wide array of benefits in place, including flexible working (hybrid/remote models) and generous time off policies (unlimited vacations, sick and parental leaves) to make it easier for all people to thrive and succeed at Star. On top of that, we offer an extensive reward and compensation package, intellectually and creatively stimulating space, health insurance and unique travel opportunities.

Your holistic well-being is central at Star. You'll join a warm and vibrant multinational environment filled with impactful projects, career development opportunities, mentorship and training programs, fun sports activities, workshops, networking and outdoor meet-ups.

We are looking for a talented RF Hardware Engineer who will play a key role in designing high-frequency and mixed-signal electronic devices. 
 
You will be involved in the full development cycle — from schematic design to prototyping and manufacturing support. The role offers a great opportunity to work on cutting-edge technologies and take part in building products that matter. 
 

Responsibilities: 

• Schematic design of RF and mixed-signal electronic devices 
• PCB layout design for high-frequency and mixed-signal systems 
• Verification of designs through SPICE simulation, testing, and lab measurements 
• Hands-on work with spectrum analyzers, VNAs, oscilloscopes, and other high-end measurement equipment 
• Preparation and maintenance of technical documentation: schematics, BOMs, production files, and test reports 
• Supporting prototype assembly and design transfer to manufacturing 
• Collaboration with manufacturing partners to ensure DFM/DFT compliance 
   

Requirements: 

• Experience in high-speed design with knowledge of SI/PI principles 
• Solid understanding of RF signal path design (e.g. transmit/receive chains, filters, matching networks) 
• Strong practical lab skills including test planning and signal analysis 
• Experience with modern EDA tools such as Altium Designer or KiCad 
• English – Intermediate level 
   

Nice to Have: 

• Familiarity with RF/microwave simulation tools (e.g., Keysight ADS, Microwave Office) 
• Experience working with contract manufacturers and launching products into production 
• System-level design experience 
   

We offer: 

• A dynamic and innovative work environment that fosters professional growth 
• Competitive salary and official employment 
• Military deferment 
• Stable working conditions with a supportive team 

• Comfortable office workspace in Lviv 
   

  If you are interested in working on breakthrough technologies and making a real impact — join us!