Jobs Developers

We're building a social networking platform from the ground up — feed, posts, reels, stories, comments, reactions, chats, calls, livestreams, marketplace. We're looking for backend engineers to take ownership of significant parts of the system.

 

What you'll work on

Concrete things on the next 12 months of the roadmap:

- Feed generation, distribution, and the recommendation engine across posts, reels, stories, comments, and reactions: fan-out-on-write vs fan-out-on-read tradeoffs per content type, candidate generation, ranking pipeline (recency, affinity, engagement signals, content-type mixing), cold start, low-latency serving under heavy read load.
- A polymorphic engagement service (likes, comments, mentions, hashtags) across six content types, feeding engagement signals into the ranking pipeline.
- A real-time chat layer: WebSocket gateway with multi-device fan-out, Redis pub/sub event routing, presence and typing indicators.
- Audio/video calls: WebRTC signaling reusing our WS infrastructure, TURN/STUN, peer-to-peer media transport with SFU upgrade path.
- A marketplace service with Stripe Connect (escrow, separate charges, payout scheduling, KYC).
- Livestreams: RTMP ingest, HLS delivery, burst push notifications to follower bases of 100K+, integration with our chat infrastructure.
- CDC pipelines feeding OpenSearch for full-text and geo-search.

 

The stack

- Language: Go.
- Storage: PostgreSQL (relational), Cassandra/Amazon Keyspaces (high-write event logs), Redis (cache, pub/sub, ephemeral state), ClickHouse (analytics), OpenSearch (search).
- Platform: AWS EKS, all services as containers, API gateway.
- Observability: OpenTelemetry → Grafana OSS stack (Loki, Tempo, Mimir) for logs, traces, metrics, and alerting.
- Async: WebSocket, Redis pub/sub, FCM/APNS for push.
- Workflow: Product writes BRDs → we design the OpenAPI/AsyncAPI spec → backend ships a mock service → all teams develop in parallel → swap to real → QA → release. AI-assisted coding is part of how we work, not a side experiment.

 

What we're looking for

- Strong system design instincts. You can read a BRD, sketch the service boundaries, choose the right storage for each access pattern, and explain the tradeoffs. We care about this more than any specific framework.
- No tool tribalism. You pick the simplest thing that solves the problem. You don't reach for Kafka when Redis pub/sub does the job, and you don't reach for Postgres when the workload is append-only events.
- Production Go experience building backend services that are actually live somewhere, and comfort with concurrency primitives.
- Hands-on with at least most of: PostgreSQL, Redis, a wide-column store (Cassandra/Scylla/DynamoDB), an API gateway, containerized deployments on Kubernetes, OpenTelemetry-style observability.
- Independent operator. You don't wait to be told what to do next. You read the spec, identify the unknowns, ask the right questions early, and ship.

 

Bonus

- Feed, timeline, or recommendation systems experience — fan-out architectures, candidate generation, ranking pipelines, ML-served scores in a serving path.
- Real-time systems experience (WebSocket gateways, presence, pub/sub fan-out).
- WebRTC or media-server work.
- Marketplace or payments work (Stripe Connect especially).
- Search infrastructure (OpenSearch / Elasticsearch, CDC pipelines).
- Terraform and infra-as-code comfort.

 

How we work

Small team, flat structure. Two-week sprints. Backend engineers own their services end-to-end: design, build, observe in production, fix. Engineers are expected to read specs, identify unknowns, ask questions early, and ship without being assigned next steps.

Insiders is a fast-growing IT company which employs about 200 people. Our company focused on providing innovative digital services and cutting-edge technologies to solve complex business challenges.

We are located in Lviv and currently work only an office format. 

What we expect from the candidate:

• 5+ years of experience in full-stack web development.

• Advanced proficiency in JavaScript/TypeScript, React (ReactNative), Next.

•Proofed experience in Node.js with Express.js and Nest.js frameworks.

•Knowledge of MySQL, PostgreSQL, MongoDB and Redis.

•Deep knowledge and understanding of networking - REST API standards, HTTP/HTTPS methods. 

•Experience with Git. 

What we offer:

- additional bonuses to salary (can reach +100% of your salary)

- opportunity for rapid career growth

- free study in our Corporate English Academy

- regular salary review (after the completion of each contract)

- provision of Apple equipment

- comfortable office with all amenities not far from the center (uninterrupted internet, generator, tea and coffee, pastries).

- corporate events, teambuildings, etc.

Job Responsibilities:

1. Team Leadership 

2. Work with PEs of JD and ensure that
the initiatives are led and delivered to closure

3. Mentor and guide engineers.

4. Collaborate with the product managers , challenge them in terms of features, and keep the delivery timeline intact

5. Design, develop, and maintain full-stack features for a cloud-based platform

6. Participating in calls with clients.

Interview Rounds:

1. Meeting with a recruiter, English test

2. Front-end technical interview

3. Back-end technical interview

4. Test task 

5. Meeting with team

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

About the Role:

We're looking for a Full-Stack Developer with a strong backend focus and real, hands-on fintech experience — specifically in building crypto exchanges or digital banking products. If you've spent the last few years deep in trading engines, payment flows, or core banking systems, we want to talk.

This is not a role for someone who has worked around fintech. We need someone who has been inside it - building the systems that move money, settle trades, and keep financial data consistent at scale.

What You'll Be Doing:

• Designing and building backend services that power financial operations - payments, ledgers, transaction processing, and compliance workflows
• Integrating with external payment providers, banking APIs, and crypto infrastructure
• Owning complex backend logic while contributing to React-based frontend when needed
• Ensuring financial data integrity, security, and regulatory compliance across the stack
• Collaborating closely with product and business stakeholders who speak the language of finance

What We're Looking For:

• 2-3+ years of hands-on experience building fintech products — ideally a crypto exchange or digital bank (this is a hard requirement, not a nice-to-have)
• Strong Python backend expertise (Django)
• Practical experience with financial systems: payments, ledgers, double-entry accounting logic, reconciliation
• Experience integrating with external payment providers — APIs, webhooks, payment flows, error handling
• Understanding of compliance-sensitive workflows: KYC, AML, transaction monitoring
• Comfortable with React on the frontend - you don't need to be a UI specialist, but you can own a feature end-to-end
• Experience with relational databases and financial data modeling (PostgreSQL preferred)

What we offer:

📈Professional Growth opportunities:

• Ambitious goals and interesting projects;
• Regular & transparent performance review and feedback process;
• Possibility for both vertical or horizontal growth (in case you want to try a different path).

😌Comfortable Working conditions

• Flexible working hours;
• Provision of required equipment;
• Remote working model.

🎁Benefits program

• 18 working days of fully paid vacation;
• Free tax reporting support by our Financial department;
• Help with individual entrepreneurs’ questions and accounting support;
• Financial support and additional days off for various occasions (e.g. marriage, childbirth, etc.);

Project Description:

The client is one of the leading automotive OEMs in the United States. The project aims to expand the client's development team and support the implementation of the HMI and Middleware components for a next-generation automotive platform, specifically tailored for high-performance and racing features.
The scope includes close collaboration with the client's engineering teams to deliver high-quality, reliable, and performance-optimized software solutions that meet the demanding requirements of racing environments.

Responsibilities:

• Code, debug, document, and maintain portions of software.
• Perform unit and integration testing.
• Participate in peer code and design reviews.
• Participate in estimation and planning sessions.
• Contribute to development of technical project documentation and user documentation.
• Provide assistance to test engineers and support personnel in solving technical issues of software installation and its operation.
• Participate in conference calls and face-to-face meetings with the Customer and Customer partners.
• Comply with the best engineering practices, the technical standards and the quality criteria set forth on the project.
• Report status and progress according to the project rules.
• Spot current deficiencies in the development process, adopted procedures and engineering practices, environment configurations, etc., and suggest improvements.
• Escalate technical issues to Tech Lead and Product Owner.
• Improve your qualification within the areas of expertise at various training courses, seminars and/or other educational organizations

Mandatory Skills Description:

POSIX (C++/C++17) skills
Unreal Engine 4.0 or never
Experience in embedded systems
SOME/IP is a messaging bus (a bit like MQTT.)
CommonAPI C++ is an implementation of a networking protocol that can generate serialization and communication code.

Nice-to-Have Skills Description:

Franca is a language for defining service interfaces (a bit like the proto2/proto3 syntax of Protocol Buffers but with more focus on RPC.)
Experience with open-source-software, scripting, CMake and Make is a strong plus

Languages:

English: B2 Upper Intermediate

PulsePaw is a community of IT professionals united by a shared vision of creating outstanding projects. We focus on delivering turn-key products in the FinTech industry. Our approach enables us to offer not only full-cycle software development but also product and business development services, including marketing accompaniment.

At our company, you'll have the opportunity to grow, engage in meaningful projects, and see the real impact of your contributions.

About the project: You’ll be working on a young, but actively developing cryptocurrency project. It’s a young global product built on a microservices architecture with a constantly expanding number of smart contracts. 

The tech stack: Node.js, TS, Nest.js, BTC, ETH, and SOL, MySQL/PostgreSQL, RabbitMQ, Kubernetes. The product follows Domain-Driven Design (DDD), PCI DSS standards, and uses Feature Branch Flow.


Responsibilities:
Backend Development: Develop a new backend for an existing project.
Full Development Cycle: Take ownership of the entire development process.
Requirements & Architecture: Define technical requirements and system architecture.
Product Release: Ensure successful product release and ongoing maintenance.
Product Logic: Develop and maintain business logic features.
Infrastructure: Handle infrastructure-related tasks such as deployment, scaling, and performance optimization

Must Have:
Experience: 3+ years of experience in program engineering, and a deep understanding of the crypto and blockchain industry.

Blockchain: Experience in smart contract development and SOL, TON, SUI, BTC, TRX.
Blockchain Practical Knowledge: At least 1 year of experience with WEB-3.
Programming: Proficiency in Node.js, TypeScript, and Nest.js.
Databases: Experience with relational databases (MySQL, PostgreSQL).
English: Intermediate or higher level of English.
Message Queues: Hands-on experience with RabbitMQ.
Job Queues: Proficiency in Bull (Redis).
Architecture & Principles: Knowledge of DDD, EDA, SOLID, OOP, and Design Patterns.


Conditions and Benefits:
Remote-friendly culture: Work from anywhere in the world with a flexible schedule in CET timezone.
Opportunities for growth: Take advantage of paid training, English-speaking clubs, support for certifications, and participation in professional events.
Room for ideas and ownership: We work in teams with full autonomy, empowered by our clients to take complete ownership of our projects.
Benefits and compensation: Partial coverage of coworking space rent and psychotherapy, 50% of the cost of professional training and certifications.
Tech-Driven Environment: Work with modern internal tools (no legacy systems).

Who we are:

Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries. 

About the Product: 

The company is building an AI-driven cybersecurity SaaS platform designed to help businesses protect their digital environments through a unified and modular approach. Its solution integrates multiple layers of security, including endpoint protection, cloud monitoring, data security, and user activity analysis, all managed within a single ecosystem. With a focus on mid-sized organizations, the platform delivers scalable, enterprise-grade protection while remaining cost-effective and easy to deploy. 

Backed by significant investment, the company is rapidly expanding its global footprint and growing a distributed international team. By leveraging advanced machine learning and real-time analytics, it enables organizations to streamline security operations, automate threat detection, and respond to incidents more efficiently.

About the Role: 

This is a hands-on leadership role for a Backend Team Lead who will guide a team of backend engineers while remaining actively involved in coding, architecture, and delivery. You will work on core backend systems of a modern cybersecurity platform, building and scaling high-load services that process large volumes of security and telemetry data in real time.

These systems are responsible for collecting, processing, and analyzing data from multiple sources, including endpoints, cloud environments, and third-party integrations. They support key product capabilities such as threat detection, security analytics, anomaly identification, and automated response workflows, making this a mission-critical role at the heart of the product.

This role offers the opportunity to combine leadership with deep technical involvement, influence system architecture, shape engineering practices, and build scalable backend solutions within a fast-growing, globally distributed product organization

Key Responsibilities: 

• Lead a team of highly skilled and passionate developers
• Partner with the Product Manager to build the road-map for the team
• Understand the team objectives and key results and make sure that the team are on the path to achieving them
• Participate in making decisions on the architecture and technologies
• Conduct the team ceremonies: Daily stand-ups, sprint planning and retro meetings
• Help create and enforce strong engineering standards, code quality, and best Engineering practices
• Take an active part in the implementation (hands-on) of the team's various services and features

• Help your team members grow by mentoring them, building their growth plan with them and enable them opportunities to implement it

   

Required Competence and Skills:

• 6+ years of backend/server-side development with Java
• 2+ years of proven experience leading an engineering team 
• Strong hands-on experience with Spring Framework and MongoDB
• Deep understanding of multithreading and concurrency
• Solid knowledge of OOP concepts and design patterns
• Proven experience with microservices architecture
• Experience working with high-load backend systems
• Proficiency in cloud-native environments (preferably AWS)

Nice to have:

• Experience with Redis and RabbitMQ
• Experience with Elasticsearch/OpenSearch 
• Familiarity with Docker / Kubernetes
• Experience in Cybersecurity domain 

Why Us?

We provide 20 days of vacation leave per calendar year (plus official national holidays of a country you are based in).

We provide full accounting and legal support in all countries we operate.

We utilize a fully remote work model with a powerful workstation and co-working space in case you need it.

We offer a highly competitive package with yearly performance and compensation reviews.

The company operates within the healthcare technology sector, specializing in solutions that enhance patient safety and data integrity. It develops advanced platforms that leverage biometric identification to accurately link individuals with their medical records. These innovations are crucial for preventing medical errors, reducing administrative redundancies, and safeguarding sensitive patient information against fraud. The organization’s offerings support healthcare providers in addressing critical compliance and security challenges while simultaneously improving operational productivity. Its strategic focus includes building scalable, cloud-native SaaS products designed to revolutionize patient access and care delivery.

As part of the GlobalLogic team, you will grow, be challenged, and expand your skill set working alongside highly experienced and talented people.

If this sounds like an exciting opportunity for you, send over your CV!

Requirements

• Experience using AI-assisted development tools such as ChatGPT, Claude, GitHub Copilot, or similar.
• Experience with C#, .NET (Framework / .NET 8), and WPF
• Solid understanding of SQL (T-SQL) and working with databases
• Experience with Git and modern development tools (e.g., Azure DevOps)
• Understanding of software architecture principles and ability to follow established designs
• Experience with refactoring and improving code maintainability
• Experience writing unit and integration tests
• Familiarity with CI/CD pipelines and application modernization (e.g., .NET upgrades)
• Strong analytical and problem-solving skills, with good communication abilities

Job responsibilities

• Develop and maintain Windows desktop applications (WPF) in collaboration with cross-functional teams
• Work closely with architects and senior engineers to ensure alignment with system architecture
• Participate in refactoring and modernization efforts (including migration to .NET 8)
• Write unit and integration tests to ensure code quality
• Follow secure development practices, especially for handling healthcare data
• Contribute to Agile development processes and deliver features on time
• Participate in technical discussions and continuous improvement initiatives

About us:

DRESSX is the largest international digital fashion platform and a pioneer in the space. We are looking for a Senior Developer to design complex solutions and agentic architectures that will power our main products and build the tools to scale our growth by 10x.

Technology Stack

• Django (Python), Next.js / React, Tailwind CSS, TypeScript, MCP, CLI, CI/CD, MySQL, PostgreSQL, Redis, GCP, AWS 
• AI Orchestration: n8n (LlamaIndex/LangChain integrations), Claude (Anthropic).
• Payments: Stripe, SolidGate.

Responsibilities

• Deep Django & Next.js Mastery: 5+ years of experience building high-load web applications and server-side rendered (SSR) interfaces.
• AI Automation (n8n or others): Proven experience building complex workflows in n8n, integrating AI nodes with custom tools and third-party APIs.
• Claude/Anthropic Expert: Deep understanding of the Claude API, prompt engineering for "Agentic Tool Use," and managing long-context windows.
• Mobile Architecture Awareness: Ability to design universal backend architectures that support Web, iOS, and Android seamlessly.

Personal Qualities:

• Automation Obsessed: You dislike manual, repetitive tasks and always look for a way to write a script or build an agent to handle them.
• Speed & Adaptability: Ability to prototype and ship solutions within days of new AI model releases or protocol updates.

For your success we offer:

• Flexible working hours with remote work
• Opportunities for professional development and personal growth;
• Competitive salary, reasonable and fair working conditions
• Team of strong IT professionals working in a vibrant product environment

We're seeking a talented .NET Developer to help shape the future of blockchain technology in innovative startup. If you're ready to make a real impact in a cutting-edge industry, we'd love to hear from you!
 

Core Competence:
 

• At least 2 years of professional experience in software development with a strong foundation in C#, ASP.NET Core, and Entity Framework.
• Proficiency in managing IIS, MS SQL, Visual Studio, and Docker environments.
• Familiarity with ODBC, LINQ, NUnit, xUnit, NuGet, and RESTful APIs, alongside Git for version control.
• Sound understanding of client-side and server-side architectures.
• Strong analytical thinking, with a structured, math or engineering-oriented mindset and a focus on delivering results.
   

Preferred Qualifications:
 

• Knowledge of ReSharper, experience with Azure, and familiarity with NoSQL databases.
• Experience with AWS and Linux system administration is an asset.
• Active participation in hackathons demonstrates innovative thinking and problem-solving skills.
• Upper-intermediate level of English for clear and effective communication in a global team.
   

What We Offer You:
 

• Competitive Compensation: Your skills and experience will be rewarded with a salary aligned with industry standards and your career ambitions.
• Innovative Work Environment: Be part of a forward-thinking FinTech startup with a culture of continuous learning, including tech talks and participation in hackathons.

• 20 paid vacation days, 3 paid sick days, and a flexible schedule for work-life balance.

   

24PLAY is a gamedev company from Ukraine that has been developing and publishing mobile games since 2019. We are a team of professionals who have launched dozens of popular games and gained over 100 million satisfied players worldwide. Our games include Zombiepunk, Bliezkrieg Assault, Street Dude, and more.

As a Diia City resident, we offer employee reservation starting from the first day of employment.
 

We are currently looking for a Playable Ads Developer to share our core company values:

• Creativity: We actively encourage and embrace each other’s ideas, transforming them into reality through collaboration and innovative thinking.
• Integrity: We commit to providing honest feedback and realistically assessing situations, fostering a culture of trust and transparency.
• Productivity: We strive to optimize our workflows to achieve the best possible results in the shortest timeframe, ensuring efficiency and effectiveness in our operations.
• Uncompromising Quality: Our commitment to excellence drives us to prioritize the quality of our work above all else, ensuring that we consistently deliver outstanding results.
• Healthy Lifestyle: We advocate for a healthy lifestyle and stand against harmful habits, promoting well-being and balance within our team.
   

We are looking for a professional for the role that requires:

• Full-time job;
• Office-based in Kyiv.

Main responsibilities:

• Create 2D and 3D playable ads and creatives to promote mobile games
• Develop gameplay mechanics, game logic, animations, and visual effects
  
  Nice to have:
• Experience working with MRAID and understanding of ad network technical requirements for playables
• Experience creating games on any technology/platform (Unity, Flash, etc.)
  
  Our ideal candidate:
• 0,5+ years of experience working with JavaScript
• Experience building web applications or games using 3D graphics libraries (Three.js, Babylon.js, etc.) or experience with 2D JavaScript libraries such as PixiJS or similar
• Experience with JavaScript physics libraries (Ammo.js, Cannon.js, or similar)
• Solid understanding of 2D/3D math (vectors, matrices, dot/cross product)

Why join our team?

• Fully Legal: Official employment in full compliance with Ukrainian labor legislation, including paid vacation (24 days) and sick leave (unlimited).
• Professional Team: A high-performing group of skilled individuals committed to excellence.
• No Overtime: We prioritize a healthy work-life balance, with no overtime required.
• Stable Payments: No payment delays since the foundation of the company.
• Bonus System: A unique reward system designed to motivate employees by aligning their performance with the company’s financial goals.
• Professional Development: Access to mentorship programs and our internal library for continuous growth.
• Events: Enjoy board games, masterclasses, corporate events, sports activities, and free English classes.
• Comfortable Workspace: A modern office in Kyiv featuring a spacious lounge, fully-equipped kitchen, sports zone, cinema, and complimentary spa facilities for employees.
• 35-Hour Work Week: Reduced working hours as a benefit for experienced employees.

We are looking for a Senior Full-Stack Developer with a strong backend focus to join a growing product engineering team building a modern reporting and compliance platform. The platform helps organizations manage operational data, track sustainability metrics, and generate compliance reports aligned with evolving environmental regulations.

This is a long-term, fully remote opportunity for engineers based in Ukraine and Europe.

Office visits: Offices exist in Oslo and Fosnavåg (Norway), and the team meets in person 2 days every 6 months (typically in Norway); travel is expected.

About the Role

You will join a small product-focused engineering team working on a cloud-native platform built with Microsoft technologies. The role is ideal for someone who enjoys backend-heavy full-stack development, production-quality engineering practices, and building scalable systems with strong monitoring and testing standards.

The team currently follows a hybrid Scrum/Kanban workflow with 2-week sprints, continuous backlog prioritization, and close collaboration between engineering, product, and UX.

Responsibilities:

• Build and deliver new product features from a prioritized backlog
• Improve and maintain existing functionality
• Develop scalable backend services and APIs
• Contribute to frontend development using Angular
• Write unit, integration, and end-to-end tests
• Ensure production reliability through monitoring, logging, and performance optimization
• Collaborate closely with product, UX, and engineering stakeholders
• Work independently and take ownership of deliverables after onboarding

Requirements:Must-Have Skills

• Minimum 5 years of professional software development experience
• Strong English communication skills (minimum a solid B2B level)
• Strong backend-focused full-stack experience (50/50 split minimum, ideally 60–70% backend)
• Strong experience with:
  • C#
  • ASP.NET Core
  • TypeScript
  • Angular
  • Azure services
  • Azure DevOps
• Experience with automated testing practices:
  • Unit testing
  • Integration testing
  • End-to-end testing
• Experience with monitoring and logging tools such as Azure Application Insights
• Experience working with databases, including non-relational databases
• Strong understanding of production reliability and software quality practices

Nice-to-Have Skills

Experience with any of the following is considered a strong plus:

• Cosmos DB
• Redis
• Azure Functions
• Bicep
• Grafana
• Karma (Angular testing)
• xUnit
• AI-assisted development tools

What We’re Looking For:

• Independent and structured working style
• Strong ownership mentality
• Solution-oriented mindset
• Ability to collaborate effectively in a distributed team
• Curiosity and willingness to continuously learn
• Passion for writing reliable, maintainable production-grade software

Work Setup:

• Fully remote position
• Occasional travel is required for in-person team gatherings in Norway (typically twice per year)

Recruitment Process:

Step 1

Prescreen interview with a Recruitment Manager

Step 2

Introductory interview with the client (their Product Owner and UX representative) focused on:

• Team structure
• Product and workflow
• Candidate motivation and cultural fit

Step 3

Technical discussion interview with engineering leadership covering:

• Architecture
• Technical experience
• Engineering practices
• Problem-solving approach

No live coding task is currently planned.

What we’re looking for

We’re hiring a Senior Software Engineer who thinks beyond code. You understand business problems, translate them into solid technical solutions, and know how to prioritize what actually matters.

You’re not just experienced—you’re decisive. You know what to tackle now, what to defer, and what to delegate.

AI is a core part of how you work. You’ve been actively using AI-assisted development (ChatGPT, Cursor, etc.) for 3+ years and can consistently produce high-quality output—where ~80% of your code is AI-generated and meets production standards.

Our platform has evolved from a data middleware solution into a multi-layer, event- and workflow-driven system. You’ll help shape what it becomes next.

We’re a growing team, with strong engineering presence in and around Lviv.

Security and quality come first. We’re ISO 27001 certified and rely on structured, often AI-driven processes to deliver consistently high standards.

⸻

Requirements

6+ years of software development experience

Strong TypeScript (Node.js) skills

Proven ability to turn business requirements into scalable solutions

Strong architectural instincts and system design experience

Hands-on Azure experience (App Services, Functions, cloud-native)

Experience with REST APIs, JSON/XML

Solid DevOps and CI/CD experience

Strong communicator, fluent in English

⸻

What you’ll do

Own problems end-to-end: from business need to production solution

Design and build scalable systems in TypeScript on Azure

Make smart trade-offs and prioritize effectively

Use AI to accelerate development, testing, and documentation

Contribute to an event-driven, workflow-centric architecture

Improve reliability, performance, and security across the platform

Work closely with product and engineering to ship fast and well

⸻

Nice to have

Event-driven architecture experience

High-availability system design

Experience in healthcare/fintech or regulated environments

Familiarity with FHIR or similar standards

Remote full-time position. Freelance contract.

Since 2013, Duanex has been building bespoke software for international companies and startups — from mobile apps to complex cloud solutions. 

Our clients span health & fintech, digital banking, and large insurance organizations. We follow Agile best practices, and automated testing is a core part of our delivery.

We are looking for a Fullstack Engineer (Node.js + Next.js) to become the main developer on a B2B restaurant operations analytics platform, working under the guidance of the CTO. The product helps restaurant businesses track sales, labor, costs, and operational KPIs.

This is a data-heavy product where customers rely on the platform for business decisions, so data correctness and reliability are critical. The architecture includes a Next.js dashboard, a Node.js data pipeline, Supabase/Postgres, and complex third-party integrations.

What you'll do

• Build and maintain backend services in Node.js
• Work on data ingestion and transformation from third-party APIs (Toast, R365)
• Maintain PostgreSQL schemas, migrations, and access policies
• Build KPI dashboards, reporting features, and admin flows
• Work with async jobs, queues, and scheduled workflows
• Debug data sync issues, permission issues, and production incidents
• Support billing, notifications, and integration-related flows
• Write tests and support CI/CD quality checks

Technical skills

• 3 years of experience 
• Strong commercial experience with TypeScript and Node.js
• Good PostgreSQL and SQL skills
• Production experience with React and Next.js
• Experience with data-heavy systems, reporting logic, or data transformation
• Comfortable working across frontend, backend, and database layers
• Experience writing and maintaining tests
• Experience with AI coding tools, e.g. Claude Code, Codex
• Attention to data correctness and business logic
• English B1+

Would be a plus

• Supabase experience
• ETL / data pipeline experience
• BullMQ / Redis experience
• Experience with POS, restaurant, accounting, fintech, or operational analytics domains

Work format & perks

• Remote-friendly; optional office in Kyiv or Lviv
• The client is US-based, so partial overlap with US hours (e.g. 11:00–20:00 Kyiv time) is a plus
• 20 paid vacation days + 10 paid sick days
• Medical insurance offered after 3 months of employment
• Corporate English classes (group format + speaking club)

Hiring process

Recruiter interview → Technical interview → Offer

We are looking for a Lead .NET FullStack Engineer with React (Azure) to join our team!

Our client is a precision mental health company on a mission to make high-quality, evidence-based digital mental health support accessible at scale. Their platform transforms deep clinical expertise into trusted, personalized, and measurable digital experiences that help people improve their mental well-being. Working with digital health partner companies across the US, they combine AI, rigorous clinical science, and human-centered design to deliver meaningful real-world outcomes.

Project technical stack:

• Backend: .NET/C#, REST APIs, Auth0, third-party integrations 
• Frontend: TypeScript, React, react-query, react-hook-form, tailwind, lottie (animation), jest, testing-libraty/react
• Cloud: Azure
• Data & Storage: Azure SQL, Cosmos DB, Blob Storage, Azure Storage 
• DevOps, Infrastructure & CI/CD: GitHub, Azure Pipelines, Docker, Kubernetes, Terraform, Grafana

Responsibilities:

• Design, develop, test, document, and maintain solutions across backend and frontend
• Deliver new features end-to-end with strong ownership and accountability, while maintaining and improving existing solutions
• Build secure, scalable, reliable, high-quality, and high-performance applications
• Work effectively in a cross-functional team, collaborating closely with Product, QA, DevOps, Data, AI, and Engineering stakeholders
• Communicate confidently in a multinational environment with business, engineering, marketing, and clinical stakeholders when needed
• Actively apply AI-assisted approaches across solution design, coding, testing, debugging, and delivery workflows
• Participate fully in Agile/Scrum ceremonies
• Troubleshoot complex issues, perform root-cause analysis, and investigate new tools and approaches
• Contribute to technical decisions, architecture discussions, and engineering best practices 
• Identify delivery bottlenecks, technical risks, and improvement opportunities proactively
• Help balance delivery speed, quality, scalability, maintainability, and technical debt across initiatives

Requirements:

• 7+ years of professional software engineering experience
• Strong commercial experience with .NET/C#
• Strong commercial experience with React/TypeScript
• Proven full-stack delivery experience across frontend and backend systems
• Experience leading technical initiatives and driving engineering decisions
• Ability to lead technical discussions and align engineers and stakeholders around solutions and priorities
• Strong experience building and consuming REST APIs
• Solid production experience with Microsoft Azure
• Solid understanding of SOLID principles, design patterns, and microservices architecture
• Strong understanding of version control, security best practices, and Agile methodologies
• Strong Agile delivery experience with a focus on speed and quality
• Startup mindset: adaptable, fast-moving, pragmatic
• Result-oriented mindset with ownership mentality
• Excellent communication and collaboration skills, able to lead conversations and drive alignment
• Able to work independently and as part of a team
• Proactive, responsive, and dependable with a strong ownership mindset
• Strong technical leadership, ownership mindset, and solution-oriented approach
• Experience supporting, mentoring, or guiding engineers in Agile teams

Nice to have

• Experience in healthcare, mental health, or other regulated industries
• Experience building AI-powered product features
• Practical experience using Anthropic Claude Code to improve SDLC
• Testing and test automation experience
• Python experience
• Data engineering experience
• Strong DevOps & CI/CD practices

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