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Domov Positions Fullstack JS Developer (Mid-Level)

Position

Fullstack JS Developer (Mid-Level)

  • Location

    Bratislava

  • Type of employment

    Full-time, Contractor

  • Salary

    2100 - 4000 Eur/Month

  • Apply for the job

Responsibilities

Why This Job Is Exciting

As a Fullstack JavaScript Developer on our Innovations Team, you will help transform creative ideas into real-world biometric solutions. Working at the forefront of our product innovation, you'll prototype new features and applications that harness Innovatrics’ industry-leading biometric technologies. Your work will directly contribute to our mission of building a world of instant trust through biometrics, turning imaginative concepts into impactful products. This role is perfect for someone who loves experimentation, rapid prototyping, and seeing their ideas make a tangible difference in the biometrics industry.

Within one month, you will…

  • Learn the ropes: Get to know Innovatrics’ products, codebase, and development processes.
  • Team integration: Meet your colleagues in the Innovations Team and understand how the team operates.
  • First contributions: Pair with a mentor to fix minor bugs or implement a small feature, gaining familiarity with our React/Node.js stack.
  • Architecture overview: Grasp the architecture of our biometric software and the components you'll be working with.

Within three months, you will…

  • Active development: Take on developing user-facing features on the front end and corresponding API endpoints on the back end.
  • Cross-team collaboration: Work closely with colleagues across different streams (e.g. R&D, QA) to deliver end-to-end prototypes and features.
  • Fullstack exposure: Own tasks across the stack – one day you might build a React UI for a new biometric feature, the next day implement server logic in Node.js.
  • Code reviews: Participate in code reviews and sprint planning, steadily contributing your ideas and feedback.

Within six months, you will…

  • Feature ownership: Lead the development of a new feature or improvement from concept to release, coordinating full-stack implementation and deployment.
  • Innovation & ideation: Actively contribute ideas during innovation sprints and brainstorming sessions for new product features and enhancements.
  • Architectural input: Join in architectural discussions, helping design scalable solutions for prototypes that could evolve into production systems.
  • Process improvement: Propose and implement improvements in our development process or code quality (e.g. refining coding standards, introducing useful tools or libraries).

Within one year, you will…

  • Strategic projects: Contribute to longer-term initiatives that shape the direction of our biometric products, such as major new modules or platform upgrades.
  • Mentorship: Begin mentoring junior developers or new team members, sharing your fullstack JavaScript knowledge and best practices.
  • Innovation leadership: Take a leading role in product experimentation – champion proof-of-concept projects and pilot new ideas to expand our product offerings.
  • Impact & growth: Continuously expand your expertise in biometrics and software development, becoming a go-to person in the team for innovative solutions.

Candidate requirements

About You:

You are a passionate JavaScript developer who loves to build things end-to-end. You thrive in creative environments where you can prototype, experiment, and iterate on new ideas. You’re comfortable wearing many hats – one day debugging a backend API, the next day polishing a frontend UI. Collaboration comes naturally to you; you enjoy working closely with others and sharing knowledge. Most importantly, you embrace our mission of using technology to instill trust, and you’re excited to contribute to cutting-edge biometric products that make a real difference in the world.

Qualifications:

  • Fullstack JavaScript: Hands-on experience building web applications using React (front end) and Node.js (back end).
  • TypeScript proficiency: Strong TypeScript skills – you can write clean, type-safe code across both client and server.
  • Clean code & maintainability: Track record of writing modular, readable, and well-tested code. You follow best practices in coding standards, version control, and documentation.
  • Problem-solving skills: Aptitude for debugging complex issues and optimizing performance in a full-stack environment.
  • Team player: Excellent communication and collaboration skills. You work effectively in cross-functional teams and are open to feedback and knowledge-sharing.
  • Bonus: Experience with rapid prototyping or working on innovation-focused projects is a plus.

Techstack:

  • Frontend: React + Shadcn/UI
    • Component-based UI + and modern React patterns, shadcn/ui, TanStack
  • Backend: Node.js
    • REST APIs, Express, Prisma, OpenAPI
  • Language: TypeScript
    • End-to-end type safety across client and server, shared interfaces/models
  • Version control & collaboration + CI/CD: GitLab with its CI/CD
    • Merge requests, code reviews, and writing CI pipelines + Argo
  • Testing:
    • Automated - via Jest, Playwright
  • Quality & tooling:
    • ESLint + Prettier for consistent style
  • Containerization & runtime: Docker + Docker Compose
    • Reproducible local environments and seamless deployment targets
  • Cloud & infrastructure (as needed): Kubernetes, AWS
    • Scalable micro-services and managed databases when prototypes graduate to production
  • Monitoring & observability: Prometheus, Grafana
    • Metrics, tracing, and error tracking for rapid feedback and stability

We continually evaluate new libraries and tools—if something can make us faster or more reliable, you’ll have a voice in adopting it.

Are you interested in this position?

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