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Senior Fullstack Developer

Senior Fullstack Developer

RED SAP SolutionsWarsaw, Poland, Eastern Europe
6 days ago
Job description

Senior Full Stack Developer - .NET / Angular / React - SaaS / Cloud Applications

Location : Warsaw, Poland (Hybrid or Remote flexibility)

Start Date : ASAP

Contract Type : Long-term contract 6-12 months initial + extensions

Industry : Technology / SaaS / Enterprise Solutions

We are currently seeking a Senior Full Stack Developer to join a growing digital team working on large-scale, enterprise-grade web applications and SaaS platforms. You'll play a critical role in designing, building, and enhancing modern cloud-native solutions using the latest technologies in the Microsoft stack.

This is an excellent opportunity for a skilled and passionate developer to be part of an Agile, collaborative environment with strong growth potential and exposure to global delivery teams.

Key Responsibilities :

  • Design and develop robust, scalable features for both new and existing web-based applications
  • Lead R&D efforts on new technologies, libraries, and design patterns
  • Rapidly prototype features and contribute to proof-of-concepts
  • Review code, share knowledge, and mentor junior developers
  • Fix bugs and implement performance improvements across the stack
  • Collaborate closely with global product owners, testers, and business analysts in Agile teams
  • Support business and end-users with technical queries and solution walk-throughs
  • Ensure high coding standards and best practices across development processes
  • Participate in daily stand-ups, planning, grooming sessions, and team demos

Essential Skills & Experience :

  • 5+ years of professional software development experience
  • Degree in Computer Science, Engineering, or related technical field
  • Proven experience building large-scale web applications and SaaS platforms
  • Strong proficiency in C# and .NET Core
  • Expertise in TypeScript and front-end frameworks : Angular (13+) or React
  • Solid background in MS SQL / SQL Azure , Entity Framework (EF 6 / EF Core)
  • Familiarity with Azure tools : KeyVault, Blob Storage, Queues, etc.
  • Experience with MongoDB or other NoSQL databases
  • Strong knowledge of unit testing frameworks : NUnit , Moq , or Jest
  • Proficient with Git / SVN and collaboration tools : Azure DevOps , Jira , Asana
  • Experience developing and deploying cloud-based applications on Azure , AWS , or GCP

    • Nice to Have :

  • Experience or interest in business analytics and BI tools :
  • Power BI
  • Azure Analysis Services
  • Tableau
  • Anaplan
  • Background in Agile environments with fast-paced delivery cycles

    • Soft Skills :

  • Strong communication skills (verbal and written)
  • Ability to work independently and as part of a globally distributed team
  • Self-driven with a passion for innovation and continuous improvement

    • This role offers long-term potential, interesting tech challenges, and the opportunity to work on cutting-edge web and cloud applications. If you're ready to elevate your career in a collaborative environment where quality and creativity are valued, we'd love to hear from you.

    Reference

    CR / 127757_1751527808

    Date

    3 Jul 2025

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    Fullstack Developer • Warsaw, Poland, Eastern Europe