Senior .NET & React Full-Stack Developer — Hybrid

Granlund Oy; Helsinki; Hybrid; EUR 67,000 - 89,000; Full time

Benefits offered by this job

Occupational healthcare

Sports and cultural benefits

Professional development opportunities

Flexible remote and hybrid work

Office in Helsinki area

Job summary

Granlund is seeking a Senior Full Stack Developer to advance its Design Data Management platform. You will focus on C#/.NET backend and SQL Server, while also working with React/TypeScript on the frontend to deliver features end-to-end.

You will collaborate with cross-functional teams, evaluate AI-generated code, and help turn proofs of concept into robust, scalable solutions for construction and real estate data.

Qualifications

• Several years of backend development with C#/.NET and strong SQL skills.
• Experience with React/TypeScript and frontend feature work.
• Understanding of software architecture and automated testing.

Responsibilities

• Develop the DDM platform end-to-end, mainly backend with C#/.NET and SQL Server.
• Collaborate across teams to turn proofs of concept into usable features.
• Review AI-generated code and maintain code quality with automated tests.
• Drive architectural decisions and prioritize development work.

Skills

C#/.NET

SQL

React

TypeScript

Software architecture

Automated testing

AI coding agents

English or Finnish

Independent work

Tools

SQL Server

Azure

Job description

Granlund is seeking a Senior Full Stack Developer to advance its Design Data Management platform. You will focus on C#/.NET backend and SQL Server, while also working with React/TypeScript on the frontend to deliver features end-to-end.

You will collaborate with cross-functional teams, evaluate AI-generated code, and help turn proofs of concept into robust, scalable solutions for construction and real estate data.