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Senior Fullstack Developer (React +.NET)
  • Warsaw
Senior Fullstack Developer (React +.NET)
Warszawa, Warsaw, Masovian Voivodeship, Polska
Jit Team sp. z o.o.
20. 12. 2025
Informacje o stanowisku

technologies-expected :


  • React.js
  • TypeScript
  • HTML
  • CSS
  • SCSS
  • .NET
  • C#

about-project :


  • We are seeking a Senior Fullstack Developer with a product-focused mindset to join a long-term project in the maritime SaaS domain. The platform is designed to digitize and optimize ship management across technical, operational, and commercial areas. Youll play a key role in delivering intuitive, scalable, and high-performance user interfaces that support mission-critical workflows in a demanding operational context. This is an opportunity to bring your fullstack expertise into a product team that cares about architecture, usability, and performance. If you enjoy integrating fullstack area with Azure-based APIs, and youre driven by clean code and purposeful product development, this role is for you.

responsibilities :


  • Lead the design and implementation of high-performance, scalable, and accessible front-end applications using React and TypeScript
  • Build and maintain reusable UI components and actively contribute to the platform’s design system, ensuring visual and functional consistency across products
  • Collaborate with product owners, UX/UI designers, and backend engineers to deliver polished, user-centric front-end experiences supported by robust .NET services
  • Integrate front-end applications with Azure-hosted APIs, ensuring efficient data flow, real-time updates, and reliable communication with backend systems
  • Apply and advocate for front-end best practices—covering performance optimization, maintainability, accessibility, and usability
  • Contribute to backend development in .NET when needed to support front-end features, integrations, or architectural improvements
  • Participate in architectural and technical discussions, influencing the long-term roadmap with a strong front-end perspective

requirements-expected :


  • 5+ years of professional experience in software development, including significant hands-on work as a Fullstack Developer in SaaS or enterprise-grade applications
  • Strong expertise in React and TypeScript, with solid experience in modern front-end development (HTML5, CSS/SCSS, responsive design)
  • Proven experience in building and maintaining front-end architectures based on reusable components and state management
  • Good working knowledge of .NET / C#, including designing and integrating RESTful APIs and backend services
  • Solid understanding of asynchronous data handling, API integration, and performance considerations across the full stack
  • High standards for UI quality, UX, and accessibility, with a strong user-centric mindset
  • Familiarity with CI/CD pipelines, Git-based workflows, and modern development tooling across frontend and backend
  • Strong communication skills and a collaborative attitude, with experience working effectively in distributed, cross-functional teams

offered :


  • Work closely with a cross-functional product team, including the Head of Product and Tech Leads, to shape the architecture of a mission-critical SaaS platform
  • Join a product with real-world operational impact, supporting international maritime logistics and vessel operations at scale
  • Be part of a forward-thinking team that values autonomy, clean code, modern architecture and strong product ownership
  • Enjoy the stability of an established industry group combined with the agility of a startup-like culture

  • Praca Warszawa
  • Warszawa - Oferty pracy w okolicznych lokalizacjach


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