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.