08.06.2026

Senior Fullstack Engineer

TypeScript, Node.js

We are looking for a Senior Fullstack Engineer to design and develop scalable automation solutions and platform services using TypeScript-based technologies in a collaborative product development environment.

Start

August

Duration

6 months + extension possibility

Location

Helsinki, Hybrid

Allocation

100%

We are now looking for a Senior Fullstack Engineer for our client. In this role, you will build automation and optimization capabilities that help customers save time, improve operational efficiency, and reduce manual work. The technology stack includes technologies such as TypeScript, Node.js, NestJS, PostgreSQL, Redis, Kubernetes, and React.

What You Will Do

Design, build, and maintain backend services and frontend applications that power automation and optimization features.
Contribute to technical and architectural decisions that improve scalability, reliability, and developer experience.
Collaborate with product managers, designers, and engineers across teams to deliver solutions that address customer needs.
Own projects from planning through implementation, balancing short-term requirements with long-term maintainability.
Improve system quality through automated testing, monitoring, and continuous improvement of engineering practices.

Requirements

Strong experience building backend services with TypeScript and Node.js.
Experience developing modern React applications using TypeScript.
Solid understanding of distributed systems, APIs, microservice architectures, and cloud-native development practices.
Experience writing and maintaining unit, integration, and end-to-end tests using tools such as Jest.
Strong communication and collaboration skills, with experience working across multiple teams and functions.

The role requires working at the client's Helsinki office three days per week.

If you are interested, please apply through the link below!

Read more about the details and express your interest by signing in: