Full Stack Developer: End-to-End Features | Hybrid Warsaw

BELVEDERE; Warszawa; Hybrid; PLN 180,000 - 260,000; Part time

Job summary

BELVEDERE is seeking a seasoned Full Stack Developer in Warsaw on a 2-month hybrid contract. You will own end-to-end feature delivery across backend APIs, React frontend, and cloud services, leveraging .NET Core, TypeScript, and Azure.

You will contribute to design, security, and reliability while collaborating with cross-functional teams to deliver robust financial platforms. Ideal candidates have 6–8 years of experience, strong C#, ASP.NET Core, React, and database modeling skills, with a

Qualifications

• 6–8 years of software development experience.
• Proven experience building ASP.NET Core Web APIs.
• Solid React and TypeScript skills for frontend work.
• Experience with SQL and NoSQL databases and data modelling.
• Cloud platforms knowledge (Azure preferred) and secure API design.
• Strong debugging and end-to-end problem-solving abilities.

Responsibilities

• Design and implement backend APIs and business logic with .NET and C#.
• Build and integrate frontend functionality using React and TypeScript.
• Model data and optimise queries across SQL and NoSQL databases.
• Deliver complete features across backend, frontend and integration boundaries.
• Troubleshoot production issues across multiple layers.
• Contribute to code reviews, testing strategies and technical quality.
• Support integration with external systems and cloud-connected services.
• Apply security best practices including secure API design and tenant-boundary thinking.

Skills

ASP.NET Core

C#

React

TypeScript

Azure

SQL

NoSQL

Security best practices

Full stack

Tools

MongoDB

Azure SQL

Job description

BELVEDERE is seeking a seasoned Full Stack Developer in Warsaw on a 2-month hybrid contract. You will own end-to-end feature delivery across backend APIs, React frontend, and cloud services, leveraging .NET Core, TypeScript, and Azure.

You will contribute to design, security, and reliability while collaborating with cross-functional teams to deliver robust financial platforms. Ideal candidates have 6–8 years of experience, strong C#, ASP.NET Core, React, and database modeling skills, with a