B2B

fully remote, Poland

Senior Fullstack Developer (Spatial UI & Precision Computing · React / Node.js / Canvas API / WebGL)

Who we are - and why you might want to join us?


We’re a software development company based in Kraków, working with international clients from industries like foodtech, construction, fintech, real estate, or healthcare. Over the last 15+ years, we’ve delivered 150+ digital products - from web and mobile apps to complex platforms and MVPs.


We work in small, cross-functional teams, combining business and tech expertise. Some of us have been here for 5, 8, even 13 years - and we’re still growing!

What connects us? A pragmatic approach to software development, a curiosity for new technologies, and a culture of collaboration. We value autonomy, clear communication, and doing things the right way.


👉 Looking for a place where you can grow, have a real impact, and enjoy what you do? 

Join us and be the architect of our success stories! 👈



SENIOR FULLSTACK DEVELOPER

Spatial UI & Precision Computing · React / Node.js / Canvas API / WebGL



[ Fully Remote ]


The Project


A 6–7 month deep-dive engagement on a mission-critical platform used in multi-million dollar construction projects across the US market - giving you rare, hands-on exposure to high-precision spatial computing and automated cost estimation systems, a niche at the intersection of ConTech, PropTech and FinTech.

You will join a dedicated team supporting one of our key US-based clients, directly impacting the financial accuracy of large-scale construction projects. As the Senior Fullstack Engineer, you will represent our company within the client's technical organization and collaborate daily with an experienced domain team.





Key Responsibilities:


  • Building and optimizing precision algorithms for spatial measurements (surfaces, dimensions) and automated cost estimation
  • Developing and maintaining the UI using Canvas API (and elements of WebGL) for 2D/3D visualizations of construction models 
  • Delivering features across the entire stack, from Node.js microservices and database schemas to React on the frontend  
  • Optimizing rendering and data processing to ensure a smooth user experience when handling large-scale architectural datasets
  • Evolving and improving a mature, production-proven codebase to enhance system maintainability and scalability 
  • Ensuring high calculation correctness through testing and participating in a thorough Code Review process
  • Collaborating with long-tenured domain experts to navigate cross-team dependencies and align on technical decisions




Sound like something for you? Send us your CV-- we’re excited to meet you!



What’s next?

  1. Initial Call: If your profile aligns with our needs, we’ll invite you for an online call.
  2. Tech Check: We’ll invite selected candidates for a technical interview to assess specialist knowledge.
  3. Client Interview: You’ll meet the Client’s team for a deep-dive technical discussion.
  4. Offer: If everything clicks, we’ll send you a complete offer with all the details.
  5. Welcome aboard!

*Note: Depending on the specific case, an extra step might be added to the process.


If this resonates — we'd love to hear from you!



Career path
  • Junior Fullstack Developer
  • Mid Fullstack Developer
  • Senior Fullstack Developer
  • Team Lead Fullstack Developer
Must have
  • 5+ years of commercial experience, with a senior-level command of the full stack
  • Strong ability to read and reason about complex business and computational logic directly from well-established codebases 
  • Proficiency in React and TypeScript 
  • Hands-on experience with Canvas API or WebGL (ability to work on thousands of vectors while maintaining high performance) 
  • Solid Node.js experience and familiarity with microservices architecture - you know how services talk to each other and how to navigate a distributed system
  • Comfort working in a cloud environment (AWS: S3, Lambda, RDS) and with containerized workflows (Docker, Docker Compose) - deep expertise not required, but confident daily usage expected
  • A strong commitment to calculation correctness, backed by testing and thorough code review
  • A pragmatic approach to evolving established architectures - knowing when to refactor and when to build on what works
  • English at a B2+/C1 level for daily collaboration with a US-based team and the confidence to proactively ask questions
  • AI Tools: Experience with GitHub Copilot or other LLM technologies, while maintaining a critical eye during code reviews 



 A link to your code repository to showcase your engineering style









Nice to have
  • Prior experience in CAD, GIS, Game Development, or working with 3D engines and advanced visualization systems
Benefits
  • Work-life balance
  • Friendly atmosphere
  • Complete onboarding
  • Impact on processes
  • Internal library
  • Various form of knowledge exchange
  • Developers summit meeting
  • Railwaymen Round Table status meetings
  • 1:1 meetings
Applying for Senior Fullstack Developer (Spatial UI & Precision Computing · React / Node.js / Canvas API / WebGL)