Backend/Fullstack Developer

We are looking for a Senior Backend / Fullstack Developer to join a fast-growing AI product company that is building innovative solutions used by thousands of professionals across Europe.

This is a hands-on engineering role where you will work closely with product, design and engineering teams to build and scale a modern software platform. The environment is fast-paced, highly collaborative and focused on delivering real customer value.

Start: ASAP
Duration: 6 months initially, with potential extension
Location: Stockholm
Work setup: On-site 5 days per week

Key responsibilities

• Design, build and maintain scalable backend services and APIs

• Develop and contribute across the full stack when needed

• Work closely with product and design teams to deliver new features

• Improve system performance, reliability and scalability

• Participate in technical discussions and help drive engineering best practices

• Contribute to a strong engineering culture with a focus on quality and continuous improvement

Required skills

• Strong experience with TypeScript

• Solid backend development experience with Node.js

• Experience building modern web applications

• Good understanding of cloud-native architectures and distributed systems

• Experience working in product-focused engineering teams

• Strong problem-solving skills and ability to work in a fast-moving environment

• Excellent communication skills in English

Nice to have

• React experience

• Azure experience

• Experience with AI-driven products, LLMs or generative AI solutions

• Experience from high-growth product companies or scale-ups

• Background within HealthTech, SaaS or other product-driven organizations