Jobs Fullstack

397
  • · 49 views · 13 applications · 15d

    Fullstack C# Engineer

    Full Remote · Ukraine · 4 years of experience · English - B2
    On behalf of our Client from France, Mobilunity is looking for a Fullstack C# Engineer. Our client is a table management software and CRM that enables restaurant owners to welcome their customers easily. The app is useful to manage booking requests and...

    On behalf of our Client from France, Mobilunity is looking for a Fullstack C# Engineer.


    Our client is a table management software and CRM that enables restaurant owners to welcome their customers easily. The app is useful to manage booking requests and register new bookings. You can view all your bookings, day after day, wherever you are and optimize your restaurant’s occupation rate. Our client offers a commission-free booking solution that guarantees freedom above all. New technologies thus become the restaurateurs best allies for saving time and gaining customers while ensuring a direct relationship with them.


    Their goal is to become the #1 growth platform for Restaurants. They believe that restaurants have become lifestyle brands, and with forward-thinking digital products, restauranteurs will create the same perfect experience online as they already do offline, resulting in a more valuable, loyalty-led business.


    Responsibilities:

    - Developing and maintaining web-based applications across the full stack using C#/.NET and JavaScript/TypeScript
    - Building responsive, user-friendly frontend interfaces
    - Designing and optimizing back-end systems and databases
    - Leveraging AI coding tools to accelerate development, improve code quality, and automate repetitive tasks
    - Investigating, diagnosing, and resolving application-related issues across frontend and backend
    - Collaborating with the team to deliver new features to clients on a regular basis

    Requirements:

    - 4+ years of experience in software development
    - Strong knowledge of C# and .NET 8/9
    - Solid experience with JavaScript/TypeScript and at least one modern frontend framework (React, Angular, or Vue)
    - Proficiency with HTML and CSS
    - Strong SQL knowledge and experience with PostgreSQL
    - Familiarity with Entity Framework (EF Core)
    - Knowledge of REST APIs
    - Active use of AI-assisted coding tools (e.g., Claude Code) as part of daily development workflow
    - Experience using version control systems (Git)
    - Strong problem-solving skills
    - Upper-intermediate to advanced English proficiency

    Will be a plus:

    - Familiarity with cloud infrastructure (AWS)
    - Knowledge of Docker & containerization
    - Experience with CI/CD pipelines
    - Interest in prompt engineering and integrating LLMs into development processes

    In return, we offer:

    • The friendliest community of like-minded IT people
    • Open knowledge-sharing environment — exclusive access to a rich pool of colleagues willing to share their endless insights into the widest variety of modern technologies
    • Perfect office location in the city center (900m from Lukyanivska metro station with a green and spacious neighborhood) or remote mode engagement: you can choose a convenient one for you, with the possibility to fit together both
    • No open-spaces setup — separate rooms for every team’s comfort, and multiple lounge and gaming zones
    • English classes in 1-to-1 & group modes with elements of gamification
    • Never-ending fun: sports events, tournaments, music band, multiple affinity groups

      🐳 Come on board, and let’s grow together! 🐳
    More
  • · 304 views · 47 applications · 15d

    Junior Full-Stack JavaScript Developer

    Full Remote · Ukraine · 0.5 years of experience · English - B1
    We’re expanding our engineering team and looking for developers who are comfortable building production-grade React and Node.js applications for early-stage companies in healthcare, fintech, and AI. Although the role is primarily front-end oriented, the...

    We’re expanding our engineering team and looking for developers who are comfortable building production-grade React and Node.js applications for early-stage companies in healthcare, fintech, and AI.

    Although the role is primarily front-end oriented, the ability to contribute to backend services in Node.js is important.

    You’ll join a team with clear processes, a modern stack, and a strong engineering culture.
     

    What you will do

    • Develop web applications using React and related tooling.
    • Build and maintain backend services and APIs with Node.js (Nest.js or similar frameworks).
    • Work with cloud environments and containerized setups using tools like Docker, Kubernetes, AWS, or GCP.
    • Participate in architectural discussions, propose improvements, and help maintain technical standards.
    • Implement new features from specification to production.


    What we expect

    • Solid knowledge of JavaScript (ES6+) and TypeScript.
    • Strong practical experience with React
    • Familiarity with Node.js (Nest.js or Express).
    • Experience developing APIs using Node.js frameworks.
    • Understanding of relational or NoSQL databases (Postgres, MongoDB, Firebase, Supabase).
    • Ability to write maintainable, well-structured code and follow best practices.
    • English at an Intermediate level or higher.


    Additional advantages

    • Experience with major cloud providers (AWS, Google Cloud).
    • Experience with React Native
    • Practical understanding of Docker/Kubernetes.
    • Familiarity with CI/CD pipelines (GitHub Actions, GitLab CI, CircleCI).


    What we offer

    • Engaging projects built with a modern, well-supported tech stack.
    • A review process that ensures consistent feedback and knowledge sharing.
    • A culture focused on continuous learning and professional development.
    • Full remote work with a team distributed across multiple countries.
    • Competitive compensation in USD with periodic performance reviews.
    • Flexible payment methods tailored to your location.
    • Work schedule aligned with your time zone.
    • English practice sessions.
    • Paid sick leave and annual vacation (15 business days).
    • Regular team activities online.
    • Coverage of monthly psychologist support sessions.
    More
  • · 207 views · 110 applications · 15d

    senior full-stack developer on react, nestjs, redux for a b2b saas product

    Full Remote · Countries of Europe or Ukraine · 4 years of experience · English - C1
    # senior full-stack developer - company: ai product development company from germany - product: cogit - ai agent-based automation platform - experience: web development, python backend, typescript frontend, ai agent interfaces - tasks: - build...

    # senior full-stack developer

     

    - company: ai product development company from germany
    - product: cogit - ai agent-based automation platform
    - experience: web development, python backend, typescript frontend, ai agent interfaces
    - tasks:
       - build frontend and backend components for agent management dashboard
       - develop cogit.panel interface for agent interaction (react/typescript)
       - implement endpoints for agent communication and creation
       - build real-time status updates during agent workflows
       - implement session management and conversation history
       - create user authentication flow with jwt tokens
       - improve multi-tenant data isolation across frontend and backend
       - improve azure services (blob storage, ai search, email)
       - improve email processing interface with outlook/graph api
    - languages: typescript, python 
    - libraries: react, nestjs, redux toolkit, prisma, azure sdk, fastapi, google adk 

    More
  • · 177 views · 39 applications · 15d

    Full-Stack

    Full Remote · Georgia, Ukraine · 3 years of experience · English - B2
    Senior Software Engineer | Cybersecurity Startup Location: Israel | Work model: Hybrid We’re looking for a Senior Software Engineer with a Cybersecurity background and a true startup mentality. Join a fast-growing team building cutting-edge SaaS...

    🚀 Senior Software Engineer | Cybersecurity Startup
    📍 Location: Israel | Work model: Hybrid

    We’re looking for a Senior Software Engineer with a Cybersecurity background and a true startup mentality. Join a fast-growing team building cutting-edge SaaS solutions that protect modern software development environments.

    What we’re looking for:

    5+ years in software engineering

    Experience with C#, Python, Node.js, Java, or Go

    Solid frontend skills (React, TypeScript, or similar)

    Knowledge of relational databases & data modeling

    Familiarity with cloud platforms (AWS/GCP/Azure) & containerized environments (Docker/Kubernetes)

    Cybersecurity experience is a must

    Bonus: exposure to AI/ML, LLM-powered agents, or security-focused engineering

    Strong communication skills, collaborative mindset, and ability to lead technical decisions

    Why join:

    Work on cutting-edge challenges in AI, DevSecOps & cloud-native systems

    Hybrid work model in Israel

    Be part of a fast-paced startup shaping the future of software security

    💡 Startup mentality required – you’ll move fast, innovate, and have real impact!
     

    More
  • · 346 views · 47 applications · 15d

    Senior Full Stack Engineer to $6000

    Ukraine · Product · 5 years of experience · English - None
    Open Role We are looking for a Senior Full Stack Engineer to join our team in Lviv. If you are passionate about blockchain technology, gaming, and working with a proactive and experienced team, we welcome you to join our project! The position is open to...

    Open Role

    We are looking for a Senior Full Stack Engineer to join our team in Lviv. If you are passionate about blockchain technology, gaming, and working with a proactive and experienced team, we welcome you to join our project!

     

    The position is open to candidates based in Lviv and can be performed either remotely or from our office.

     

    Responsibilities

    • Implement new APIs and extend existing ones.
    • Integrate with third-party providers, including payment and gambling services.
    • Develop new features using React/Redux for customer-facing applications.
    • Design and implement architecture collaboratively with the team.
    • Identify system improvements and implement them.
    • Enhance test coverage and CI/CD pipelines.
    • Adopt innovative technologies and tools to improve the platform.
    • Migrate old React app to Next JS
    • Migrate task based backend service to event based architecture on top of Kafka

     

    Requirements

    • Experience: Minimum 5 years of web development experience.
    • Frontend: Proficiency in React.js, Redux, Next.js.
    • Backend: Strong experience with Node.js, NestJS.
    • Database: MongoDB, Redis.
    • Messaging: Kafka, WebSockets.
    • Testing: Experience with Jest, React Testing Library, Playwright framework for UI and API automation.
    • DevOps: Familiarity with Docker, Cloudflare, Nginx, PM2, New Relic.
    • Authentication: JWT, Customer.io.
    • Version Control: Git, GitHub, GitHub Actions.
    • CI/CD: Familiarity with CI/CD tools and practices (GitHub pipelines preferred).
    • Smart Contracts: Previous experience with developing smart contracts is a plus.
    • Education: Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent experience).
    • Skills: Excellent problem-solving and analytical skills, strong communication and collaboration abilities.

     

    Our Benefits

    • Flexible working hours & remote job options.
    • Office facilities in Lviv.
    • Paid vacation and sick leave.
    • Fun and friendly team environment.
    • Opportunities for personal and professional growth.
    • Up to 100% reimbursement for participation in core courses and conferences.
    • Salary bonuses.

     

     

    Why Join Us?

    If you are looking for a proactive, smart, and experienced team working on innovative and extraordinary projects, we welcome you to join us!

    Our company is driven by a desire to constantly grow, develop, and learn new things. We dare to think bigger to drive you to bigger results.

    More
  • · 366 views · 58 applications · 15d

    Middle Full Stack Engineer to $4500

    Ukraine · Product · 5 years of experience · English - None
    Open Role We are looking for a Senior Full Stack Engineer to join our team in Lviv. If you are passionate about blockchain technology, gaming, and working with a proactive and experienced team, we welcome you to join our project! The position is open to...

    Open Role

    We are looking for a Senior Full Stack Engineer to join our team in Lviv. If you are passionate about blockchain technology, gaming, and working with a proactive and experienced team, we welcome you to join our project!

     

    The position is open to candidates based in Lviv and can be performed either remotely or from our office.

     

    Responsibilities

    • Implement new APIs and extend existing ones.
    • Integrate with third-party providers, including payment and gambling services.
    • Develop new features using React/Redux for customer-facing applications.
    • Design and implement architecture collaboratively with the team.
    • Identify system improvements and implement them.
    • Enhance test coverage and CI/CD pipelines.
    • Adopt innovative technologies and tools to improve the platform.
    • Migrate old React app to Next JS
    • Migrate task based backend service to event based architecture on top of Kafka

     

    Requirements

    • Experience: Minimum 5 years of web development experience.
    • Frontend: Proficiency in React.js, Redux, Next.js.
    • Backend: Strong experience with Node.js, NestJS.
    • Database: MongoDB, Redis.
    • Messaging: Kafka, WebSockets.
    • Testing: Experience with Jest, React Testing Library, Playwright framework for UI and API automation.
    • DevOps: Familiarity with Docker, Cloudflare, Nginx, PM2, New Relic.
    • Authentication: JWT, Customer.io.
    • Version Control: Git, GitHub, GitHub Actions.
    • CI/CD: Familiarity with CI/CD tools and practices (GitHub pipelines preferred).
    • Smart Contracts: Previous experience with developing smart contracts is a plus.
    • Education: Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent experience).
    • Skills: Excellent problem-solving and analytical skills, strong communication and collaboration abilities.

     

    Our Benefits

    • Flexible working hours & remote job options.
    • Office facilities in Lviv.
    • Paid vacation and sick leave.
    • Fun and friendly team environment.
    • Opportunities for personal and professional growth.
    • Up to 100% reimbursement for participation in core courses and conferences.
    • Salary bonuses.

     

     

    Why Join Us?

    If you are looking for a proactive, smart, and experienced team working on innovative and extraordinary projects, we welcome you to join us!

    Our company is driven by a desire to constantly grow, develop, and learn new things. We dare to think bigger to drive you to bigger results.

    More
  • · 137 views · 40 applications · 15d

    Mid-Level Full-Stack Software Developer

    Full Remote · Ukraine · 3 years of experience · English - B1
    Astrix builds conversational AI simulations that help organisations develop and measure human skills like leadership, communication, and decision-making — skills that traditional training struggles to evaluate. We work with enterprise clients,...

     

    Astrix builds conversational AI simulations that help organisations develop and measure human skills like leadership, communication, and decision-making — skills that traditional training struggles to evaluate.

    We work with enterprise clients, consultancies, and institutions to create realistic, voice-based simulations powered by agentic AI, real-time audio processing, and analytics. Our platform sits at the intersection of AI, product, and human behaviour.

    We’re now looking for a mid-level full-stack developer to join our existing team of data scientists and engineers and help scale the platform.

     

     

    The Role

    You’ll work across the stack, owning meaningful parts of the product end-to-end — from real-time audio capture through to dashboards and platform integrations.

    This is not a ticket-factory role. You’ll be trusted to work independently, deliver against milestones, and collaborate closely with the founding team on product decisions.

     

     

    What You’ll Work On

    • Scaling the Astrix platform for enterprise use
    • Building and maintaining cross-platform desktop functionality (macOS & Windows)
    • Real-time audio capture, streaming, and transcription pipelines
    • Integrations with enterprise systems (e.g. SAP, SuccessFactors, LMSs)
    • Improving performance, reliability, and security
    • AI evaluation flows, analytics, and dashboards
    • Iterating on product UX alongside the founders

       

     

     

    Required Experience

    • Full-stack experience delivering MVPs end-to-end
    • Experience with Electron for cross-platform desktop apps
    • Real-time audio capture and processing
    • WebSocket-based streaming systems
    • Integration with real-time speech-to-text APIs (streaming transcription)
    • Experience with Cloudflare Workers
    • Event-based data modelling and database design (session + event ingestion)
    • React experience for integrating with the core platform
    • Comfortable working independently with milestone-based delivery

     

     

    Bonus (Nice to Have)

    • Experience with real-time transcription (STT)
    • Cloudflare Durable Objects or similar stateful real-time systems
    • Audio/video streaming formats (WebM, Opus, PCM)
    • Dashboard or analytics UI experience
    • Startup or early-stage product experience
    • Familiarity with Clerk or similar authentication providers

     

     

    Working Model

    • Fully remote
    • CET timezone overlap preferred
    • Full-time contractor
    • Flexible start date (March ideal)

     

     

    Compensation & Upside

    • Competitive salary
    • Opportunity to work deeply with:
      • Agentic AI
      • Conversational AI
      • Real-time systems used by enterprise clients

     

     

    Who Thrives at Astrix

    The kind of engineer who thrives here is someone who:

    • Is a self-starter and doesn’t need micromanagement
    • Is disciplined about milestones and deadlines
    • Communicates clearly and proactively
    • Is comfortable owning problems end-to-end
    • Enjoys building real products used by real people

     

     

    How to Apply

    Send us:

    • A short intro about yourself
    • Your CV / LinkedIn
    • (Optional but appreciated) examples of products, repos, or systems you’ve owned
    More
  • · 117 views · 11 applications · 15d

    Fullstack Engineer (Laravel + React)

    Full Remote · Worldwide · 1 year of experience · English - B1
    IQ Tech is a software development company focused on building custom web solutions for clients in the housing compliance and property management industry in the UK. We help businesses digitize their workflows, automate operational processes, and build...

    IQ Tech is a software development company focused on building custom web solutions for clients in the housing compliance and property management industry in the UK.


    We help businesses digitize their workflows, automate operational processes, and build scalable systems that solve real-world problems.

    Our products are used by compliance managers, inspectors, and operational teams to manage inspections, certifications, and regulatory processes more efficiently.

     

    We work with modern technologies, real business cases, and a small, strong engineering team where each person has real impact on the product.

     

    Responsibilities

    • Develop and maintain web applications using React (18+) and Laravel (10/11)
    • Implement new features and improve existing functionality
    • Work with REST APIs (development and integration)
    • Write clean, readable, and maintainable code
    • Participate in code reviews
    • Collaborate with QA engineers, PMs, and designers
    • Fix bugs and optimize existing functionality
    • Participate in task planning and effort estimation

       

    Requirements

    • at least 1–2 years of commercial experience in web development
    • Strong knowledge of JavaScript (ES6+) and React (18+)
    • Experience with PHP 8+ and Laravel (10/11)
    • Understanding of REST API principles
    • Strong knowledge of HTML5 and CSS3
    • Experience with databases such as MySQL 8 or PostgreSQL
    • Understanding of Git (branches, pull requests, merges)
    • Understanding of client-server architecture
    • Basic knowledge of the HTTP protocol (methods, status codes)
    • Ability to read and understand technical documentation in English

       

    Nice to have:

    • Understanding of SOLID / DRY / KISS principles
    • Experience with Postman / Swagger / OpenAPI
    • Basic knowledge of web security (JWT, authentication flows, CORS)

     

    Not a “perfect developer”, but someone who:

    • Understands the full flow: UI → API → Database
    • Can debug using DevTools and Postman

     

    More
  • · 43 views · 0 applications · 15d

    Senior/Team Lead Full Stack (Node.js/React) developer

    Hybrid Remote · Canada · 5 years of experience · English - B2
    We are looking for a skilled Senior/Team Lead Full Stack (Node.js/React) developer with 5+ years of professional experience to join our project for working on enterprise-level project from the Canada Please note that this role requires a hybrid work...

    We are looking for a skilled Senior/Team Lead Full Stack (Node.js/React) developer with 5+ years of professional experience to join our project for working on enterprise-level project from the Canada

     

    Please note that this role requires a hybrid work format (2–3 days in the office in Toronto, the rest remote)

     

    Requirements

    Must have

    • 5+ years of experience in full-stack development
    • Proficiency with JavaScript and TypeScript
    • Experience building web applications and APIs (Node.js + React)
    • Experience with cloud platforms (preferably AWS, but others are acceptable)
    • Strong problem-solving and research skills
    • Ability to communicate complex technical topics clearly to both technical and non-technical stakeholders
    • Strong desire to provide technical leadership and overall direction for the delivery team

     

    About Project

    Product

    Our customer is one of the world’s most successful hotel companies. Hotel has 118 properties in 47 countries. For the second consecutive year, the hotel was named the Best Luxury Hotel Chain in the world by Business Traveller magazine.

     

    Stage

    Ongoing product ecosystem with continuous scaling and active development. Modern tech stack, no legacy.

     

    Project team

    Our technical team will consist of 6 people: a Project Manager, a Senior Node.js Developer, a Middle React Developer, a Junior Node.js Developer, and a Senior QA Automation Engineer. We also collaborate with a large Salesforce team on our side (up to 40 people)

     

    Work Schedule

    Full-time workweek (Monday to Friday), hybrid format (2–3 days in the office, the rest remote)

     

    Interview Stages

    • Сall with Recruiter (30 minutes)
    • Interview with our Senior Full Stack developer
    • Technical Assessment with the Client
    • Cultural Fit Interview with the Client
    More
  • · 43 views · 8 applications · 15d

    Senior Full Stack .NET/React Engineer (AWS, GCP)(4772)

    Full Remote · Ukraine · 5 years of experience · English - B2
    Role description The OVO Group’s mission is to drive progress towards net zero carbon living. We’re a collection of companies with a single vision: to power human progress with clean affordable energy for everyone. At OVO, we are on a mission to solve one...

    Role description
    The OVO Group’s mission is to drive progress towards net zero carbon living. We’re a collection of companies with a single vision: to power human progress with clean affordable energy for everyone. At OVO, we are on a mission to solve one of humanity's biggest challenges, the climate crisis. And we know it takes all of us to change the world. That's why we need diverse people from all gender identities, ethnicities, ages, sexual orientations, life experiences and backgrounds to join us.

    Being an Engineer here at OVO means being at the forefront of building innovative solutions that drive the sustainable energy revolution. As a part of our talented team, you'll collaborate on cutting-edge initiatives, tackle complex challenges, and make a meaningful impact in creating a greener future. Join us and unleash your expertise to transform the energy industry and pave the way for a sustainable tomorrow.

     

    Responsibilities
    Development of new features and improvements
    Adopting and contributing to CI/CD pipeline and ways of working
    Delivering product value iteratively
    Ensuring best practices around observability and security
    Working closely with other developers to ensure knowledge sharing
    Designing and developing new platform functionality, from inception to deployment
    Building on top of and integrating the existing estate
    Helping to refine and deliver work items across our Agile delivery process
    Contributing to efficiencies and improvements in Ways of Working
    Designing, building, and maintaining efficient, reusable, and reliable code.
    Sharing new ideas, techniques and methodologies.

     

    Requirements
    5+ years of software development experience.

    Strong .NET skills and experience building web solutions.

    Experience with React, 

    Experience with clouds (AWS is preferred), Kubernetes, and Docker.

    Understanding of ArgoCD or GitOps is a plus.

    Understanding of BDD is also a plus.
    Microservices /Serverless
    Infrastructure as code
    Event-driven architectures, RESTful interfaces and SQL databases
    Experience using TDD principles would be an advantage
    Experience in Data modelling/Database engineering would be a plus
    Upper-intermediate English
    Experience working in an Agile development process
    Critical thinking and problem-solving skills

     

    More
  • · 230 views · 60 applications · 15d

    Full stack web developer

    Part-time · Full Remote · Worldwide · 3 years of experience · English - B2
    About the project: We are finalizing a Telehealth platform designed to bridge the gap between doctors and patients. Our goal is to provide a seamless, secure, and accessible medical experience. We are currently in the critical phase of preparing our web...

    About the project:

    We are finalizing a Telehealth platform designed to bridge the gap between doctors and patients. Our goal is to provide a seamless, secure, and accessible medical experience. We are currently in the critical phase of preparing our web and mobile applications (iOS & Android) for the official live release.

    We are looking for a skilled Full stack web developer with strong Kotlin expertise to help us polish the functionality, ensure stability, and successfully launch the product.

     

    A new team member will be in charge of:

    • Finalize and prepare the platform for a stable and secure production launch.
    • Develop and maintain backend services using Kotlin and Spring Boot.
    • Optimize database design, queries, and system performance.
    • Translate business requirements into scalable, maintainable technical solutions.
    • Ensure code quality and stability through testing and debugging.
    • Collaborate with mobile, QA, and product teams to support release readiness.
    • Support deployment and performance optimization in Azure (if applicable).
    • Contribute to frontend improvements using JavaScript / daisyUI when needed.
    •  

    Does this relate to you?

    • 3 years of experience with Kotlin, including coroutines, null safety, and idiomatic syntax.
    • 2 years of experience building scalable backends with Spring Boot, including Security and Data JPA.
    • 2 years of experience with JavaScript.
    • Strong ability to design database schemas and write optimized queries.
    • Strong ability to translate complex business requirements into maintainable technical solutions.
    • Strong skill in identifying and fixing bottlenecks in memory and database performance.
    • Commitment to high code quality through unit and integration testing.
    • 3 years of experience with Azure would be a plus.
    • Experience using the daisyUI would be a plus.
    • English is Uppere-intermediate.
    More
  • · 245 views · 74 applications · 15d

    Junior Full-Stack Developer (ReactJS + NodeJS)

    Full Remote · Countries of Europe or Ukraine · 1 year of experience · English - B2
    Our company is actively seeking a highly skilled and motivated Full-Stack Developer who is passionate about coding and eager to grow, to join our team. Your skill set: Strong knowledge of TypeScript Experience with React + Redux Backend expertise...

    Our company is actively seeking a highly skilled and motivated Full-Stack Developer who is passionate about coding and eager to grow, to join our team.

     

         Your skill set:
     

    • Strong knowledge of TypeScript
    • Experience with React + Redux
    • Backend expertise in Node.js + NestJS
    • Working knowledge of PostgreSQL
    • Understanding of RESTful APIs and using Postman
    • Familiarity with Docker and AWS
    • Experience with React Native, Firebase, Expo will be a plus
    • Understanding of MonoRepo structure and workflows
    • Comfortable with written and spoken English (Upper-Intermediate+)

       

      Responsibilities:
       

    • Build and improve new features and modules
    • Maintain and refactor existing codebase
    • Integrate with third-party tools and services
    • Work closely with PMs, QAs, architects & fellow devs
    • Support deployments and participate in releases

      Benefits are discussed individually 
    More
  • · 124 views · 31 applications · 16d

    Middle Full-Stack Engineer (Frontend-focused, React + Node/Go)

    Full Remote · Ukraine · 3 years of experience · English - B2
    CareerOS is a B2B2C career platform serving 100+ top MBA programs worldwide - including Oxford, INSEAD, London Business School, Georgetown, and Notre Dame - along with 30+ employers. We help 500K+ users land jobs they love. We're a small, high-output team...

    CareerOS is a B2B2C career platform serving 100+ top MBA programs worldwide - including Oxford, INSEAD, London Business School, Georgetown, and Notre Dame - along with 30+ employers. We help 500K+ users land jobs they love. We're a small, high-output team based in Barcelona, operating with American startup intensity - we ship fast, own our decisions, and push each other to do great work.

    We work in small squads, each owning their own area of the product end-to-end.

    We're looking for an Engineer who can work confidently across the full stack - React/TypeScript on the frontend, Node.js on the backend. You'll ship features end-to-end, make product decisions, and grow into a senior role with us.

    What you'll actually do

    You won't specialize in one corner. You'll build across the stack.

    • Ship features end-to-end - From database to UI. You'll work across React/TypeScript and Node.js (with some legacy Go), owning features from start to finish.
    • Make product decisions - See a confusing UX? Fix it. Have a better idea for an API design? Propose it and build it. We trust engineers to make smart calls on small-to-medium product decisions.
    • Build with AI tools - We use AI coding tools daily (Claude Code, Cursor - team members pick what works for them). You should be comfortable (or excited) to work this way.
    • Work directly with design - Implement pixel-perfect, responsive interfaces from Figma. Push back when something doesn't make sense.
    • Own your code in production - We do continuous deployment. What you merge today is live today. You'll debug, monitor, and improve what you build.

    What we're looking for

    Must-haves:

    • 3-5 years building production web applications, comfortable on both frontend and backend
    • Strong React and TypeScript skills - You can build complex UIs confidently
    • Backend experience with Node.js - You can write APIs, work with databases, and debug across the stack
    • Solid SQL skills - You can write queries, understand schemas, and think about data
    • Strong product intuition - You've shipped features where you made design and technical calls, not just followed tickets
    • Excellent communication - You can articulate tradeoffs clearly, push back respectfully, and work well async
    • Comfortable with ambiguity - Requirements will be fuzzy. You ask the right questions, make reasonable assumptions, and move forward without hand-holding
    • Fluent English - We're a distributed team; clear written and verbal communication is essential

    Strong signals:

    • You've worked at an early-stage startup before (and liked it)
    • You have side projects or open source contributions that show you build things because you're curious
    • You've used AI coding tools and have opinions about them
    • You care about craft - clean code, good abstractions, thoughtful UI details

    What this role is NOT

    Let's be honest about fit:

    • Not a laid-back 9-to-5 - Startup doesn't mean less oversight and more flexibility. It means more ownership, higher stakes, and sometimes intense pushes. We respect personal time, but when we ship, we ship hard.
    • Not highly structured - If you need detailed specs and clear roadmaps to function, this isn't the place.
    • Not single-track - If you only want to do frontend or only backend, check out our other roles. This one requires range.

    What you get

    • Competitive salary + stock options (we'll discuss based on experience and location)
    • Remote-friendly, with optional in-person time in Barcelona
    • Small team where your work visibly matters - we have 500K+ users and real revenue
    • Direct access to founders and fast decision-making
    • Clear path to senior engineer as we scale from 5 to 10+ engineers
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  • · 135 views · 5 applications · 16d

    Trainee/Junior Full Stack JavaScript Developer (React/Node)

    Office Work · Ukraine (Lviv) · English - A1
    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 in an office...

    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 in an office format. For candidates from other cities, we offer relocation (an apartment located near the office, this option is free).

     

    What we expect from the candidate:

    •Solid understanding and ability to the practical application of HTML/CSS, JavaScript and TypeScript. 

    •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. 

    •Solid understanding of React/Next.js. 

    •Experience with Git. 

     

    what we offer:

    - free study in our Corporate English Academy

    - growth and development opportunities for young developers even if you have no commercial experience

    - 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).

    - timely payment of salaries.

    - corporate events, teambuildings, etc.

    - working on projects side by side with Senior developers, which will give you the opportunity to learn and develop.

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  • · 119 views · 33 applications · 16d

    FullStack Developer (React+React Native+ Node.js)

    Full Remote · Ukraine · 4 years of experience · English - B2
    We are looking for a skilled Full-Stack Engineer with strong expertise in React, TypeScript, and React Native to join our growing team. In this role, you will be responsible for building and delivering high-quality features across web and mobile...

    We are looking for a skilled Full-Stack Engineer with strong expertise in React, TypeScript, and React Native to join our growing team. In this role, you will be responsible for building and delivering high-quality features across web and mobile platforms, collaborating closely with product and design teams, and contributing to backend development with Node.js.

    You will have the opportunity to work on impactful projects, take ownership of features end-to-end, and help shape the technical direction of the product.

    Requirements:
     

    • 4+ years of hands-on experience with React and TypeScript, building scalable and maintainable front-end applications.
    • Solid production experience with React Native, delivering high-quality mobile applications.
    • Strong background in Node.js backend development, including building APIs and server-side logic.
    • Experience working with relational and/or NoSQL databases, with a good understanding of data modeling and performance optimization.
    • Proven ability to take ownership and deliver features end-to-end, from architecture and implementation to testing and deployment.
       

    What we offer:
     

    • Remote working format
    • Flexible working hours
    • Informal and friendly atmosphere
    • The ability to focus on your work: a lack of bureaucracy and micromanagement
    • 20 paid vacation days
    • 7 paid sick leaves
    • Education reimbursement
    • Free English classes
    • Psychologist consultations
    • Recruitment process:

       

      Recruitment interview – Technical Interview – Client Interview

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