Jobs Fullstack

394
  • Β· 287 views Β· 58 applications Β· 3d

    Full-Stack AI Engineer (.NET + React)

    Part-time Β· Full Remote Β· Worldwide Β· 2 years of experience Β· English - B1
    We are looking for a strong Full-Stack .NET + React Engineer with knowledge in AI LLM integrations to help expand and improve an existing AI CFO product. The MVP is already built and in use. This role is focused on building new features, improving AI...

    We are looking for a strong Full-Stack .NET + React Engineer with knowledge in AI LLM integrations to help expand and improve an existing AI CFO product. The MVP is already built and in use. This role is focused on building new features, improving AI Agent performance, and developing new Agents.

     

    You will work directly on an active product and help us:

    • Design and implement new features on top of an existing system
    • Build advanced file export and reporting functionality (PDF, Excel, structured reports)
    • Improve accuracy, consistency, and performance of LLM outputs
    • Maintain and optimize generating charts and graphs using LLMs
    • Create evaluation pipelines to measure and optimize model performance
    • Implement validation layers and deterministic post-processing

     

    Core Requirements

    Full-Stack Engineering

    • React (or similar frontend framework) experience
    • .NET Backend development experience
    • Working with AWS (or similar cloud environments)
    • Knowledge with relative and document databases 

     

    AI / LLM Engineering

    • Proven experience integrating LLMs into real applications
    • Experience with MCP and understanding how it works
    • Structured output generation (JSON, reports, analytics)
    • Prompt engineering and workflow optimization
    • Building evaluation frameworks and test suites for AI systems
    • Experience with frontier LLM models
    • Handling retries, validation, guardrails, and fallback logic
    • Optimizing cost, latency, and accuracy trade-offs
    • Use AI-assisted coding tools (Claude Code) to ship faster

     

    Strong Plus

    • Financial analytics or accounting-related software experience
    • Familiarity with QuickBooks or similar financial systems

     

    Engagement Model

    • Part-time contract (~120 hours per month)
    • Fully remote
    • Flexible schedule
    • Long-term collaboration (not a short gig)
    • Complete freedom in choosing technologies and architectural solutions

     

    This is perfect for an experienced engineer who prefers flexible contract work and enjoys building practical AI systems.

     

    Shortlisted candidates will receive a test task. Detailed project information will be shared after signing an NDA.

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  • Β· 257 views Β· 76 applications Β· 3d

    Fullstack Developer

    Full Remote Β· Worldwide Β· 4 years of experience Β· English - B1
    Job description About Fulcrum: We’re a team of tech-savvy, creative & passionate IT professionals. We’ve created a vibrant and performance-driven culture for ourselves where everyone is free to think & act outside the box. There are literally no limits...

    Job description

     

    About Fulcrum: We’re a team of tech-savvy, creative & passionate IT professionals. We’ve created a vibrant and performance-driven culture for ourselves where everyone is free to think & act outside the box. There are literally no limits to what you can do here, as long as we WOW our clients and OVER deliver what we promise.

    We are now looking for a FullStack Developer (full-time, remote) to join our team.


     

    About the project

    It is a web-based marketplace that connects sailors with verified mooring buoy providers worldwide. The product works similarly to Booking, but specifically for mooring buoys: users can discover available buoys on an interactive map, check vessel compatibility, book and pay online via Stripe and leave reviews after their stay.
    On the provider side, the platform offers tools to manage buoy listings, availability calendars, seasonal pricing, bookings, and payouts. It also includes an ambassador referral system and an admin panel for moderation, analytics, and platform management.


     

    Key Responsibilities
     

    • Develop new features for booking platform, support & bug fixing (front-end/back-end - 50/50)

       

    Job requirements

     

    • Experience as Full stack Developer 3+ years
    • Experience with Node.js and React/Next as a main stack
    • Strong knowledge of JavaScript (3+ years) \ TypeScript (1+ year)
    • HTML\CSS;
    • Experience with SQL databases (2+ years)
    • Version control & task management
    • Understand frontend architecture best practices
    • Experience with PostgreSQL (3+ years);
    • B1+ level of English
    • NestJS (1+ year)
    • TypeORM (1+ year)
    • Docker/docker-compose
    • Openness to using AI Agent to make development process faster
    • Experience with bookings, payments, listing creation


      Nice-to-have


    - Experience with AWS
    - Development API for web app
    - Expirience writing technical documentation
    - Experience with websockets
    - Booking services integration / development
    - Experience with Stripe, PayPal
    - Experience with accounting
    - Experience with services

     

     

    Hiring process

     

    • Recruiter interview (40 min)
    • Technical interview (2h)
    • Final interview



      What we offer:

      - Flexible schedule & opportunity to work remotely or workspace in Kyiv (kooperativ.cc);
      - Friendly & open team who have fun creating cool projects together;
      - Opportunity to boost your professional & personal growth;
      - Regular team gathering activities;
      - 20 business days of paid vacation + UA national holidays;
      - Medical insurance full coverage;
      - 10 + 5 days paid sick leave;


       

      How we operate:

      - We promise dramatic professional growth & interesting work
      - Bring ideas that will change how Fulcrum operates, and you will receive our gratitude and rewards
      - Your opinion matters. Fulcrum is not a typical ’bureaucratic company, and our employees are our core value
      - Your compensation grows with your responsibility zone
      - If something doesn’t go smoothly or can be simplified, just let us know β€” you are welcome to do so
      - You have a say in everything we do, starting from the roadmap, creating requirements, sprint planning, etc.
      - If you feel that everything above is about you, get in touch. We’re always glad to welcome stubborn, enthusiastic, and result-oriented buddies to our team

      Are you interested in working with us?

      LET’S MOVE THE WORLD TOGETHER!


     

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  • Β· 280 views Β· 116 applications Β· 3d

    Middle Full-Stack Developer (Django/DRF + React)

    Full Remote Β· Worldwide Β· 2 years of experience Β· English - B1
    We’re looking for a Middle Full-Stack Developer with a strong backend focus to join our team. The role is mostly backend-oriented (Django / Django REST Framework), with React on the frontend side. You’ll work on building and maintaining APIs, implementing...

    We’re looking for a Middle Full-Stack Developer with a strong backend focus to join our team.
    The role is mostly backend-oriented (Django / Django REST Framework), with React on the frontend side. You’ll work on building and maintaining APIs, implementing business logic, and contributing to the frontend where needed.

    Skills requirements:

    • 2+ years of commercial experience as a Full-Stack or Backend Developer
    • Strong experience with Django / DRF
    • Hands-on experience with React
    • Good understanding of REST APIs and databases
    • Ability to work independently and communicate clearly within a team

       

    Nice to have

    • Experience with AWS in production
    • Basic DevOps understanding
    • Experience with async tasks (Celery or similar)

     

    Key Responsibilities

    • Develop and maintain backend services using Django / Django REST Framework
    • Build and support REST APIs and core business logic
    • Work with AWS infrastructure and cloud services
    • Contribute to frontend development using React
    • Collaborate with the team, participate in code reviews, and improve code quality

     

    We offer:

    • Great networking opportunities with international clients, challenging tasks;
    • Building interesting projects from scratch using new technologies;
    • Personal and professional development opportunities;
    • Competitive salary fixed in USD;
    • Paid vacation and sick leaves;
    • Flexible work schedule;
    • Friendly working environment with minimal hierarchy;
    • Comfortable, spacious and well-equipped office in the city center;
    • Team building activities, corporate events.

     

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  • Β· 47 views Β· 11 applications Β· 3d

    Full Stack .Net/Angular Developer

    Full Remote Β· Ukraine Β· 3 years of experience Β· English - B2
    On behalf of our Client, a well-established financial institution from the UAE, Mobilunity is looking for a Full Stack .Net / Angular Developer for a long-term engagement. Our Client provides location-based services, machine-to-machine (M2M), and...

    On behalf of our Client, a well-established financial institution from the UAE, Mobilunity is looking for a Full Stack .Net / Angular Developer for a long-term engagement.

    Our Client provides location-based services, machine-to-machine (M2M), and telematics solutions using GPS/GSM/GPRS and satellite technologies for tracking vehicles, assets, workforce, and individuals. Its mission focuses on delivering scalable, reliable fleet management solutions that reduce costs and optimize ROI for clients in sectors like automotive, logistics, oil & gas, and construction. The company positions itself as a regional leader in the Middle East, with a 95% client renewal rate and awards from Frost & Sullivan.

    Key Responsibilities:

    • Renewing and refactoring core components of our IoT platform.
    • Working on both greenfield development (Β±50%) and refactoring/technical debt reduction (Β±30%), alongside support/bug fixing (Β±20%).
    • Contributing across backend services and, where relevant, the Angular frontend.
    • Collaborating closely within a small, autonomous Scrum team with high ownership.
    • Ensuring platform stability, performance, and test coverage in a real-time, high-throughput environment.

    Requirements:
     

    • 3+ years of C#/.NET development experience.
    • Strong communicator with an open and reflective mindset.
    • HBO-level education (or equivalent).
    • Comfortable working in a small team with shared responsibilities.
    • Bonus: Self-awareness and curiosity about how you work best.
    • There is no niche specialization required beyond solid .NET backend experience; however, affinity with distributed systems, IoT platforms, and scalable architectures is a strong plus.

    Tech stack:

    • Backend: C#, .NET Core / .NET 6+ (currently moving towards .NET 9), REST APIs.
    • Frontend: Angular, TypeScript, JavaScript, CSS.
    • Infrastructure: Azure Public Cloud, Managed Hosting, Docker.
    • Data & Messaging: MS SQL, Redis.
    • Tooling: Azure DevOps (CI/CD), Git, Jira, Visual Studio / VS Code, Resharper.
    • Architecture & Patterns: DDD, CQRS, Mediator, Factory patterns.

    Come on board, and let’s grow together!

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  • Β· 33 views Β· 1 application Β· 3d

    Tech Lead Full Stack Engineer (Python, React, AI/LLM) (#4419)

    Full Remote Β· Ukraine Β· 8 years of experience Β· English - B2
    N-iX is a global software development company founded in 2002, connecting over 2,400+ tech professionals across 40+ countries. We deliver innovative technology solutions in cloud computing, data analytics, AI, embedded software,IoT, and more to global...

    N-iX is a global software development company founded in 2002, connecting over 2,400+ tech professionals across 40+ countries. We deliver innovative technology solutions in cloud computing, data analytics, AI, embedded software,IoT, and more to global industry leaders and Fortune 500 companies. Join us to create technology that drives real change for businesses and people across the world.

     

    Our client is a global UK-based financial services and investment banking organization developing an AI-powered document processing and automation platform used across multiple businesses within the wider banking group. The platform leverages modern cloud and AI technologies to transform legacy workflows, enhance data quality, and accelerate digital decision-making.

    Position Overview:
     

    We are looking for a Tech Lead Full Stack Engineer with strong hands-on engineering expertise leading agile software development teams. The ideal candidate will define and drive the technical strategy of the platform, guide engineers in delivering scalable and secure systems, and actively contribute to architectural decisions and solution design.

     

    This role requires both strong technical depth and leadership capabilities, particularly in environments involving Google Cloud, microservices, APIs, Python and data-intensive processing.

    The Tech Lead will work closely with product, architecture, data science, and engineering teams to ensure high-quality delivery and alignment with business outcomes.

     

    Join Our Team & Earn Exciting Bonuses!
    As a special incentive, we’re offering a Welcome Bonus of $3,000 USD for a new hire. Plus, if you refer a friend who gets hired, you’ll receive a Referral Bonus of $2000 USD!

     

    Key Responsibilities:

    • Define and communicate the technical vision, architecture, and engineering roadmap for the team and platform.
    • Lead engineers, conduct code reviews, provide architectural guidance, and ensure adherence to engineering standards.
    • Lead the technical delivery lifecycle from design and development to deployment and maintenance.
    • Build scalable, high-performance microservices and UI and APIs using modern frameworks and cloud-native design principles.
    • Oversee integration of AI components (E.g Google Cloud, Vertex AI, Gemini models, and LLM evaluation frameworks)
    • Promote test-driven development, automate testing pipelines, and ensure robust, maintainable code.
    • Work with product managers, architects, BAs, and business teams to translate business needs into technical solutions.
    • Contribute to product strategy, identify technical opportunities, and propose improvements to shape future releases.
    • Drive best practices for cloud infrastructure, security, observability, and performance optimization on Google Cloud.
       

    Requirements:

    • 8+ years of experience in software engineering with at least 3+ years in a Tech/Team Lead role.
    • Strong background in software/platform/database design in data-heavy or distributed environments.
    • Hands-on experience with microservices, React JS, and cloud-native architectures.
    • Proficiency in Python.
    • Solid Cloud experience (GCP is prefferable) 
    • Hands-on experience building and integrating LLM pipelines, handling conversation memory, and long-running workflows
    • Proficiency in RAG architectures with a focus on optimized search retrieval and scalable data indexing strategies
    • Practical experience with AI output validation, automated evaluation strategies, and secure AI integration
    • Experience with LLM observability, tracing (e.g., LangSmith, Langfuse), and token usage/cost optimization
    • Experience implementing automated testing frameworks, CI/CD pipelines, and TDD/BDD practices.
    • Strong understanding of software engineering principles: scalability, performance, reliability, observability.
    • Proven experience leading engineering teams in agile delivery environments.
    • Advanced English and excellent communication skills and ability to work with both technical and non-technical stakeholders.
       

    Nice to Have:

    • Prior exposure to document processing platforms, OCR, NLP, or workflow automation.
    • Experience in financial services or other regulated industries.
    • Familiarity with architectural frameworks (C4 modeling, DDD, event-driven systems).

     

    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

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  • Β· 242 views Β· 39 applications Β· 3d

    Tech Lead Full Stack Engineer (Python, React, AI/LLM) (#4419)

    Full Remote Β· EU Β· 8 years of experience Β· English - B2
    N-iX is a global software development company founded in 2002, connecting over 2,400+ tech professionals across 40+ countries. We deliver innovative technology solutions in cloud computing, data analytics, AI, embedded software,IoT, and more to global...

    N-iX is a global software development company founded in 2002, connecting over 2,400+ tech professionals across 40+ countries. We deliver innovative technology solutions in cloud computing, data analytics, AI, embedded software,IoT, and more to global industry leaders and Fortune 500 companies. Join us to create technology that drives real change for businesses and people across the world.

     

    Our client is a global UK-based financial services and investment banking organization developing an AI-powered document processing and automation platform used across multiple businesses within the wider banking group. The platform leverages modern cloud and AI technologies to transform legacy workflows, enhance data quality, and accelerate digital decision-making.

    Position Overview:
     

    We are looking for a Tech Lead Full Stack Engineer with strong hands-on engineering expertise leading agile software development teams. The ideal candidate will define and drive the technical strategy of the platform, guide engineers in delivering scalable and secure systems, and actively contribute to architectural decisions and solution design.

     

    This role requires both strong technical depth and leadership capabilities, particularly in environments involving Google Cloud, microservices, APIs, Python and data-intensive processing.

    The Tech Lead will work closely with product, architecture, data science, and engineering teams to ensure high-quality delivery and alignment with business outcomes.

     

    Join Our Team & Earn Exciting Bonuses!
    As a special incentive, we’re offering a Welcome Bonus of $3,000 USD for a new hire. Plus, if you refer a friend who gets hired, you’ll receive a Referral Bonus of $2000 USD!

     

    Key Responsibilities:

    • Define and communicate the technical vision, architecture, and engineering roadmap for the team and platform.
    • Lead engineers, conduct code reviews, provide architectural guidance, and ensure adherence to engineering standards.
    • Lead the technical delivery lifecycle from design and development to deployment and maintenance.
    • Build scalable, high-performance microservices and UI and APIs using modern frameworks and cloud-native design principles.
    • Oversee integration of AI components (E.g Google Cloud, Vertex AI, Gemini models, and LLM evaluation frameworks)
    • Promote test-driven development, automate testing pipelines, and ensure robust, maintainable code.
    • Work with product managers, architects, BAs, and business teams to translate business needs into technical solutions.
    • Contribute to product strategy, identify technical opportunities, and propose improvements to shape future releases.
    • Drive best practices for cloud infrastructure, security, observability, and performance optimization on Google Cloud.
       

    Requirements:

    • 8+ years of experience in software engineering with at least 3+ years in a Tech/Team Lead role.
    • Strong background in software/platform/database design in data-heavy or distributed environments.
    • Hands-on experience with microservices, React JS, and cloud-native architectures.
    • Proficiency in Python.
    • Solid Cloud experience (GCP is prefferable) 
    • Hands-on experience building and integrating LLM pipelines, handling conversation memory, and long-running workflows
    • Proficiency in RAG architectures with a focus on optimized search retrieval and scalable data indexing strategies
    • Practical experience with AI output validation, automated evaluation strategies, and secure AI integration
    • Experience with LLM observability, tracing (e.g., LangSmith, Langfuse), and token usage/cost optimization
    • Experience implementing automated testing frameworks, CI/CD pipelines, and TDD/BDD practices.
    • Strong understanding of software engineering principles: scalability, performance, reliability, observability.
    • Proven experience leading engineering teams in agile delivery environments.
    • Advanced English and excellent communication skills and ability to work with both technical and non-technical stakeholders.
       

    Nice to Have:

    • Prior exposure to document processing platforms, OCR, NLP, or workflow automation.
    • Experience in financial services or other regulated industries.
    • Familiarity with architectural frameworks (C4 modeling, DDD, event-driven systems).

     

    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

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  • Β· 55 views Β· 17 applications Β· 3d

    Middle Full Stack Software Engineer Golang/Python + React (IRC286928)

    Full Remote Β· Ukraine Β· 3 years of experience Β· English - B2
    Job Description 3-4 years of commercial experience as a software engineer Backend development with Python or Golang Experience with modern frontend frameworks (Ember.js, React, Vue, Angular) Knowledge and hands-on experience with DB Experience with...

    Job Description

    3-4 years of commercial experience as a software engineer
    Backend development with Python or Golang
    Experience with modern frontend frameworks (Ember.js, React, Vue, Angular)
    Knowledge and hands-on experience with DB
    Experience with Restful APIs and Microservices
    Github Actions and general CI/CD experience
    Strong commitment to master Ember.js framework and other required technologies
    Upper-intermediate English level
    Unit testing experience

     

    Nice to have:

    Experience with Amazon Web Services is a plus
    Experience with Linux, Docker, Kubernetes
    Very good communication skills – work with global distributed team
    Strong analytical and problem solving skills, proactive and innovative

    Job Responsibilities

    • Design, develop, and maintain full-stack web applications
    • Implement RESTful APIs and integrate with relational databases
    • Participate in the analysis, diagnosis and troubleshooting issues and defects
    • Collaborate with cross-functional teams to deliver scalable, secure solutions
    • Ensure application performance, security, and code quality through best practices and code reviews
    • Participate in troubleshooting, debugging, and continuous improvement efforts

    Department/Project Description

    The groundbreaking model for in-home care and support has given us the inspiration to create our new technology solution. Through a HIPAA-compliant platform that is intuitive and user-friendly we will enhance and empower care and communication between caregivers and their extended care team to improve outcomes and quality of life.

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  • Β· 334 views Β· 90 applications Β· 3d

    Full-Stack Engineer (Node, React) to $6500

    Full Remote Β· Countries of Europe or Ukraine Β· Product Β· 4 years of experience Β· English - B2
    We are looking for a seasoned Full-Stack Engineer with a product mindset! Ukraine and Poland | Full-Time | Remote About the role Our team is growing, and we are looking for a talented software engineer. You will work in small teams on various products....

    We are looking for a seasoned Full-Stack Engineer with a product mindset!


    Ukraine and Poland | Full-Time | Remote

    About the role

    Our team is growing, and we are looking for a talented software engineer. You will work in small teams on various products. The Software Engineer plays a key role in the decision-making process about technologies and our core product as we bring new and innovative products to the market. You will use the latest technologies and frameworks, Node.js and Postgres on the server-side and React on the client-side.

     

    What you’ll do

    • Design of the overall architecture of the web application
    • Lead the Front-end & BE effort to implement cool new features, services, and APIs
    • Write reusable code and libraries
    • Optimize the application for maximum speed and scalability
    • Solve bugs (no one can hide from it)
    • Cover functionality with tests and monitoring
    • Work closely with managers, engineers
    • Contribute in all phases of the development lifecycle to build first in class FE & BE solutions
    • Bring fresh ideas to the team and suggest new technologies

     

    Who you are

    • 3+ years of experience as a full-stack engineer
    • Strong proficiency with NodeJS, JavaScript, TypeScript
    • Experience with React or similar frontend frameworks
    • Experience with NestJS
    • Experience with FE & BE performance optimizations
    • Experience with Jest Testing Framework
    • Experience with Postgres
    • Passionate about technology enjoys solving complex problems and learning new technologies
    • Communication (are you sharing your thought process and asking questions where appropriate?)
    • Teamwork (are you a team player putting the mission before self-interest?)
    • Beauty and simplicity (of your code)
    • Upper-intermediate or higher English level

     

    Nice to have

    • GraphQL
    • Cloud experience (AWS)
    • Manage infrastructure as code (Terraform, HashiCorp)

     

    About us

    Redocly specializes in API solutions, focusing on API design, documentation, and governance. They provide tools and services that help organizations create, manage, and optimize their APIs efficiently.

    The mission is to accelerate API ubiquity. The primary way we do that is to improve our developer experiences. We’re a team of about 60 people focused on making the best products we can for our customers. We have a strong product-market fit. The products you work on are used by millions of people. We use Shape Up methodology.

    Headquarter – Austin, Texas, US. We also have an office in Lviv.

    https://redocly.com/ 

     

    Redocly is trusted by leading tech, fintech, telecom, and enterprise teams to power API documentation and developer portals. Redocly’s clients range from startups to Fortune 500 enterprises.

     

    Working with Redocly

    • Tech stack: JS, TS, Node.js, Nest.js, React.js,Vitest, Postgres, AWS, Terraform
    • Team: 5 people (middle-seniors)
    • Team’s location: Ukraine&Europe
    • There are functional, product, and platform teams and each has its own ownership, and line structure, and teams themselves decide when to have weekly meetings. 
    • There are cycles of 8 weeks and teams can be mixed.
    • Engineers are involved in all parts every two months to work on different things.

     

    Perks

    • Full remote
    • Cooperation on a B2B basis / Gig-contract
    • Contract with the US based company (no VAT)
    • After a year of working with the company, you can buy a certain number of company’s shares
    • Around 30 days of vacation (unlimited,  but let’s keep it reasonable 😁)
    • 10 working days of sick leave per year
    • Public holidays according to Ukrainian/Polish law
    • No trackers and screen recorders
    • Working hours – European timezone. Working day – 8 hours. Mostly they start working from 10-11 am
    • Equipment provided – MacBooks (M1 - M4)
    • Performance reviews

     

    Hiring stages

    1. Prescreening (30 min)
    2. HR Call (45-60 min)
    3. Technical Interview (up to 30 min)
    4. Trial Day (paid) - Offer Call

     

    Interested? Let’s connect and discuss the details!

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  • Β· 88 views Β· 7 applications Β· 3d

    Senior Full-Stack (React+Node.js) Engineer to $7000

    Full Remote Β· Poland, Romania, Bulgaria Β· Product Β· 6 years of experience Β· English - B2
    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 product is a security-aware platform built to help...

    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 product is a security-aware platform built to help enterprises monitor, analyze, and optimize the digital experience across all employee devices and environments, whether on-prem, virtual, or cloud-based. It gives IT teams real-time visibility into system performance, application stability, and end-user experience, with the ability to automatically detect and remediate issues before they cause disruptions.

    The product has seen strong traction globally, with significant year-over-year growth and increasing demand from large, distributed teams that need to secure and stabilize digital environments without adding complexity.

     

    About the Role: 
    We’re hiring a Senior Full-Stack Engineer to join a growing engineering team working on an industry-leading Digital Employee Experience (DEX) platform. The team develops solutions for the monitoring and control of physical endpoints, leveraging a modern stack and cloud platforms.

    You’ll be part of a high-skill group tackling challenging engineering problems: scaling distributed systems, designing micro frontend architectures, and building shared libraries that impact multiple product areas. This is a chance to work with cutting-edge technologies and AI-assisted development tools while shaping the future of endpoint monitoring and workplace automation.

     

    Key Responsibilities: 

    • Contribute as a senior member of the full-stack engineering team
    • Develop and enhance both frontend and backend components
    • Collaborate on architectural decisions and implementation of modern design patterns
    • Work with cloud services and scalable data technologies
    • Improve productivity and code quality using AI-assisted development tools.

       

    Required Competence and Skills:

    • 5+ years of professional experience in full-stack development (both frontend and backend) using JavaScript
    • 3+ years with React (single-page apps, modern frontend paradigms)
    • 2+ years of hands-on experience building microservice-based applications using Node.js
    • Proficiency in ECMAScript, HTML5, SCSS, Babel, Webpack
    • Strong knowledge of OOP and design patterns
    • Familiarity with micro frontend architecture and module federation
    • Experience with cloud platforms (Azure preferred, AWS or GCP acceptable)
    • Proven experience in building shared/common packages
      Solid understanding of UX/UI design principles
    • Experience with AI-assisted development tools (e.g. GitHub Copilot, Cursor, Claude Code, etc.)

       

    Why Us?

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

    - We provide full accounting and legal support in all countries in which 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.

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  • Β· 103 views Β· 23 applications Β· 3d

    Middle Flutter Full-Stack Developer

    Full Remote Β· Countries of Europe or Ukraine Β· 3 years of experience Β· English - B2
    We are looking for a motivated Flutter Full-Stack Developer (Mid Level) to join our team. You will work on developing and scaling a high-performance AI-powered mobile application, collaborating closely with Product, Backend, Growth, and Infrastructure...

    We are looking for a motivated Flutter Full-Stack Developer (Mid Level) to join our team.
    You will work on developing and scaling a high-performance AI-powered mobile application, collaborating closely with Product, Backend, Growth, and Infrastructure teams.

    What You’ll Do
    ● Develop and maintain cross-platform mobile applications using Flutter (iOS & Android).
    ● Build scalable backend services using Python (FastAPI or similar frameworks).
    ● Integrate AI models and third-party APIs (LLMs, image generation, payments, analytics).
    ● Design and implement secure REST/GraphQL APIs.
    ● Optimize app performance, responsiveness, and scalability.
    ● Work with GCP infrastructure, including deployment, monitoring, and cloud services.
    ● Ensure clean architecture, maintainable code, and strong separation of concerns.
    ● Collaborate closely with Product, Growth, QA, and BI teams.
    ● Participate in code reviews and contribute to engineering best practices.
    ● Monitor production systems and support troubleshooting when needed.

    Requirements

    ● 3–5 years of professional experience in mobile and/or backend development.
    ● Strong experience with Flutter (Dart) for production-grade apps.
    ● Solid experience with Python backend development (FastAPI, Django, or similar).

    ● Experience working with REST APIs, authentication flows, and secure data handling.
    ● Good understanding of cloud infrastructure, ideally Google Cloud Platform (GCP).
    ● Experience with databases (PostgreSQL, Firestore, MongoDB or similar).
    ● Familiarity with CI/CD pipelines and deployment workflows.
    ● Strong debugging and problem-solving skills.
    ● Clean code mindset and understanding of scalable app architecture.
    ● Ability to work independently and take ownership of features.
    ● Intermediate English communication skills required.


    Desirable Experience

    ● Experience integrating AI/LLM APIs (OpenAI or similar).
    ● Experience with subscription systems (RevenueCat, in-app purchases).
    ● Experience optimizing AI cost-performance (model selection strategies).
    ● Experience working with microservices architecture.
    ● Familiarity with monitoring tools (e.g., GCP Monitoring, Sentry, etc.).
    ● Experience working in subscription-based mobile apps.
    ● Interest in performance optimization and AI product scaling

     

     

     

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  • Β· 49 views Β· 14 applications Β· 3d

    Snr FullStack Engineer (Angular, .Net, Kotlin, Java - all must have)

    Full Remote Β· Worldwide Β· 8 years of experience Β· English - B2
    US Company is searching for a couple of Senior FullStack Engineers (Angular, .Net, Kotlin, Java) into a complex, enterprise-level project - SaaS, which allows multiple functions for safety and health insurance on high-risky industries (oil and gas...

    US Company is searching for a couple of Senior FullStack Engineers (Angular, .Net, Kotlin, Java) into a complex, enterprise-level project - SaaS, which allows multiple functions for safety and health insurance on high-risky industries (oil and gas gathering, chemical, energy etc). Interesting project with cutting edge technologies, distributed team, full-time, an official contract. Remote work, flexible schedule.

     

    Brief project description:

    • The product is SaaS, which allows multiple functions for sustainability & operational risk management.

     

    Key areas of responsibility:

    • Work as part of an agile development team to design, estimate, develop, test and deliver commercial software products.
    • Drive UI architecture, design and develop rich UI web applications and reusable UI components.
    • Ensure best practices, design guidelines for UI development
    • Provide technical leadership to fellow UI engineers.
    • Write clean code to develop functional web applications and server-side applications
    • Develop and design generic, secure & scalable RESTful services and APIs
    • Write unit and integration tests and collaborate with QA for resolution of issues
    • Collaborate with product owners and product managers to understand business requirements and for user story creation and refinement.
    • Provide input for project estimation, planning, timelines, and status
    • Perform other duties and responsibilities, as necessary

     

    Required skills:

    • 5+ years of Web Front End development using various technologies, frameworks, and tools
    • Strong experience with Angular, TypeScript, KOTLIN, .NET, SOAP API
    • In-depth understanding of web development
    • Knowledge of best practices in back-end architecture, including performance, security and scalability
    • Experience with Azure Cloud hosting and scaling web applications
    • Knowledge of Azure technologies and environment
    • Working knowledge of Agile Scrum development methodologies
    • Working knowledge of Azure Dev Ops.
    • Domain knowledge in life-cycle assessment is an asset

     

    Skills considered a plus:

    • Experience with containers and orchestration (Docker, AKS/Kubernetes).
    • Infrastructure as Code (Bicep, ARM templates, Terraform).
    • Event-driven architectures (Service Bus, Event Grid, Event Hubs).
    • Security and compliance in cloud environments (identity, secrets management, least privilege).

     

    Work conditions:

    • Distributed team, remote work.
    • Kanban or scrum approach, 5-6 team members / team.
    • Full-time (40 hours per week).
    • Official contract: salary, sick-leave days, holidays, vacations.

     

    Hiring process:

    • Step 1 - preliminary interview (main questions) - 20 mins
    • Step 2 - internal tech interview (tech questions) - 40-50 mins
    • Step 3 - tech interview with team leader and architect - 1 hour
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  • Β· 171 views Β· 75 applications Β· 3d

    Full Stack Engineer

    Full Remote Β· Countries of Europe or Ukraine Β· 5 years of experience Β· English - C1
    Full Stack Developer [Full-time, Remote, Freelancer] SNEAK PEEK ⇨ Location: Remote, GMT+0/GMT+4 ⇨ Interview process: HR interview ⇨ technical interview ⇨ take-home challenge ⇨ final interview ⇨ offer WHO ARE WE? At Rounds, we believe in...

    Full Stack Developer

    [Full-time, Remote, Freelancer]

     

    SNEAK PEEK 

    ⇨ Location: Remote, GMT+0/GMT+4

    ⇨ Interview process: HR interview ⇨ technical interview ⇨ take-home challenge ⇨ final interview ⇨ offer 

     

     

    WHO ARE WE? 

    At Rounds, we believe in harnessing the power of cutting-edge technology to drive business success. Our transformative, machine-learning technology identifies and optimizes mobile assets, while our team of experts, with their unparalleled human capital and business acumen, provides the strategic direction and support to turn mobile assets into profitable businesses. Together, we are revolutionizing the mobile industry. 

     

    THE ROLE

    We are looking for an experienced Full-Stack developer with a passion for building complex systems to further expand our set of internal tools. You will architect and develop our core internal systems, understand and predict user interactions, and create well-written code, based on the business needs. You will work closely with other developers and QA testers, using the Agile methodology and a quality-first approach.

     

    Hiring manager: Nadav Nagel, Software Team Lead 

     

    WHAT ARE WE LOOKING FOR?

    • 5+ years of commercial experience building publicly available websites
    • 3+ years of experience in backend development using Typescript and Node.js
    • Up-to-date with at least one of the latest UI frameworks (React, Vue.js, etc.)
    • Detail-oriented and able to adhere to deadlines
    • Excellent communication skills in both written and verbal English

     

     

    INTERESTED?

    Our recruitment process consists of the following steps: 

    • HR interview: 30 min
    • Take-home challenge.
    • Technical interview: 60 min
    • Final interview

     

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  • Β· 182 views Β· 32 applications Β· 3d

    Fullstack Developer (Angular+Nest)

    Part-time Β· Full Remote Β· Worldwide Β· 3 years of experience Β· English - B2
    We are looking for a Fullstack Developer (Angular + Nest) to join our growing team. We are open to hiring a specialist on a full-time or part-time basis. DARLY SOLUTIONS is an international IT company specializing in delivering innovative solutions...

    We are looking for a Fullstack Developer (Angular + Nest) to join our growing team. We are open to hiring a specialist on a full-time or part-time basis.

    DARLY SOLUTIONS is an international IT company specializing in delivering innovative solutions across Fintech, MedTech, SaaS, etc.
    With years of experience in web and mobile development, UI/UX design, Quality Assurance, AI, and machine learning, we pride ourselves on creating impactful products that drive success for our clients. Since 2018,
    we have successfully completed over 250 projects.
    Examples of our work across various domains can be found on our website
    - https://www.darly.solutions/
    We leverage cutting-edge technologies to craft powerful, forward-thinking solutions tailored to our clients’ needs. Our team is proficient in a diverse range of tools, including Angular, NestJS, React, Vue, PHP, Ruby, Node.js, and many others.

    Requirements:
    β€’ Strong experience with Angular (v16+), including Signals and standalone components
    β€’ Proficiency with NestJS and modular backend architecture
    β€’ Strong TypeScript
    β€’ Hands-on experience with MariaDB and TypeORM (schema, migrations)
    β€’ Real-world experience integrating Keycloak (authentication, RBAC)
    β€’ Experience with Playwright or Cypress for end-to-end testing
    β€’ Familiarity with Docker, Git, CI/CD
    β€’ Strong English and soft skills, independent and reliable working style
    β€’ Coding test is expected during the process

    Responsibilities:

    β€’ Build and maintain Angular components (standalone components, Signals)
    β€’ Extend and improve REST APIs using NestJS
    β€’ Manage MariaDB schema and TypeORM migrations
    β€’ Implement and maintain Keycloak-based authentication and role-based access control
    β€’ Write end-to-end tests using Playwright/Cypress
    β€’ Ensure code quality and contribute to technical documentation
    β€’ Collaborate with internal team, follow GitLab-based workflow

    Would be a plus:
    β€’ Experience with high-load or production-grade systems
    β€’ Deeper CI/CD and DevOps experience
    β€’ Experience improving test stability and coverage in E2E pipelines

    Work conditions (for full-time position)

    - Flexible work format - remote, 8-hour working day without time trackers;
    - Competitive salary;
    - Tight-knit and friendly team;
    - Personalized career growth;
    - Up to 50% coverage of the cost of professional courses;
    - Vacation time, sick-leaves, national holidays ;
    - Competitive bonuses for a personal recommendation of new employees;
    - Professional development tools (mentorship program, tech talks and workshops);
    - English classes with a teacher;
    - Corporate events and team buildings.

    More
  • Β· 46 views Β· 6 applications Β· 3d

    Senior Stripe Expert – Stripe Billing / Checkout Specialist (Flutter or VueJS/Nuxt Environment)

    Part-time Β· Full Remote Β· Ukraine Β· 10 years of experience Β· English - C1
    About Us We are a german software development company working with a wide range of clients across different industries. Our projects span SaaS platforms, subscription models, marketplaces, and custom digital products. For several ongoing and upcoming...

    About Us

    We are a german software development company working with a wide range of clients across different industries. Our projects span SaaS platforms, subscription models, marketplaces, and custom digital products.

    For several ongoing and upcoming client projects, we are looking for a highly experienced Stripe expert who can support us on a freelance basis – both strategically and hands-on.

     

    This is not a junior or mid-level position. We are specifically looking for someone who has implemented and configured Stripe in many complex, real-world production environments and has deep expertise in Stripe Billing, Checkout, and API integrations.

     

    Your Role

    As our Stripe Expert, you will:

    • Advise our internal development teams (Flutter or VueJS/Nuxt-based projects)
    • Support complex Stripe implementations across multiple client projects
    • Audit and optimize existing Stripe setups
    • Troubleshoot configuration errors and edge cases
    • Guide clients through billing logic, pricing models, and subscription architecture
    • Implement and adjust Stripe integrations directly when needed
    • Assist in handling pricing migrations and subscription transitions
    • Help avoid common pitfalls in Stripe configuration and product modeling

    You will work closely with our developers and occasionally interact with clients in a consultative capacity.

     

    Required Expertise

    We are looking for someone who:

    • Has extensive hands-on experience with Stripe Billing & Checkout
    • Has set up and configured many Stripe projects from scratch
    • Has handled:
      • Complex subscription models (monthly, annual, usage-based, tiered pricing)
      • Coupons, discounts, and promotional logic
      • Multiple price changes and migrations in live systems
      • Subscription upgrades/downgrades and proration
      • Trials and grandfathered pricing
      • Webhooks and event-driven billing logic
      • Tax configuration (e.g., Stripe Tax, EU VAT cases)
      • Payment failures and dunning logic
      • Customer portal configuration
    • Is highly familiar with:
      • Stripe Admin Dashboard (deep configuration knowledge)
      • Stripe API (server-side & client-side integrations)
      • Webhook debugging and error handling
      • Test mode vs. live mode differences
    • Has experience resolving real-world edge cases and production issues
    • Can quickly identify architectural mistakes in existing Stripe setups
    • Understands how to structure products, prices, and subscriptions properly from a long-term scalability perspective

     

    Technical Context

    Our client projects typically use:

    • Flutter (mobile/web apps)
    • VueJS / Nuxt

    You do not need to be a full-stack expert in all technologies, but you must understand how Stripe integrates into modern frontend/backend architectures.

     

    What We Expect

    • Strong consulting capability (you can explain complex billing logic clearly)
    • Independent, structured working style
    • Ability to quickly analyze and fix misconfigured Stripe environments
    • High reliability and responsiveness
    • Experience working with agencies or multiple parallel client projects is a plus

     

    Ideal Candidate Profile

    • 5+ years of hands-on Stripe experience
    • Proven track record of multiple live Stripe Billing implementations
    • Deep knowledge of subscription lifecycle management
    • Comfortable working in complex, evolving billing environments
    • Strong understanding of Stripe best practices and common pitfalls
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  • Β· 79 views Β· 25 applications Β· 3d

    Full-Stack Software Engineer (Python + React) to $5000

    Full Remote Β· Ukraine Β· Product Β· 3 years of experience Β· English - B1
    Requirements: Proficiency with React and TypeScript for frontend development Strong backend development experience with Python and PostgreSQL, including schema design and migrations (SQLAlchemy + Alembic) Deep understanding of asynchronous programming and...

    Requirements:

    • Proficiency with React and TypeScript for frontend development
    • Strong backend development experience with Python and PostgreSQL, including schema design and migrations (SQLAlchemy + Alembic)
    • Deep understanding of asynchronous programming and event-driven systems (Python async, background processing, integrations)
    • Experience with workflow orchestration tools
    • Hands-on experience working with Apache Airflow, including DAG's and backend integrations
    • Experience in building or designing data pipelines, including orchestration, data processing and integrations (batch and/or streaming)
    • Build and maintain infrastructure using Terraform, Kubernetes and Helm
    • Experience deploying and operating services on Kubernetes, including maintaining Helm charts
    • Ability to work highly autonomously, proactively clarify requirements and driving work forward with minimal supervision
    • Strong communication skills and experience working in distributed teams

    Nice-to-Have:

    • Familiarity with FastAPI
    • Experience with Bazel build system (training can be provided)
    • Experience with CI/CD pipelines
    • Prior experience in environments with limited product management and high ownership

    Key Responsibilities:

    • Design, build and deliver full-stack features using Python, PostgreSQL, React and TypeScript
    • Take ownership of features from initial, sometimes ambiguous ideas to production, including:
    • clarifying requirements and assumptions
    • technical design
    • implementation
    • testing, deployment and monitoring
    • Design and maintain integration-heavy backend services, collaborating with other teams and consuming internal API's
    • Work closely with Apache Airflow pipelines (seamless integration with backend services)
    • Design and implement scalable backend systems using PostgreSQL
    • Proactively identify risks, dependencies and gaps in requirements, and drive solutions 
    • independently
    • Build and maintain infrastructure using Terraform, Kubernetes, and Helm
    • Collaborate with team members in regular syncs to discuss progress, blockers and demos
    • Participate in code reviews, design discussions and cross-team technical coordination

    About the Project:

    We’re hiring a Full-Stack Software Engineer (Python + React) to join a fast-paced, highly autonomous team. This role is ideal for an engineer who is comfortable working across the stack, passionate about writing clean and scalable code, and capable of driving features end-to-end - from design to infrastructure provisioning to production monitoring.

    Engineers are trusted to make decisions, ask the right questions and deliver production-ready solutions. The work spans backend services, Airflow-driven workflows, infrastructure and frontend with a strong emphasis on building reliable, well-integrated systems that scale.

    You will work closely with cross-functional teams to build new features from scratch.



     

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