React Product Engineer — Functional Software

About the Client and the Role

Our client is a fast-growing AI product company building next-generation creative tools powered by generative AI. The team consists of highly experienced product and engineering professionals with ambitious goals and a strong focus on building world-class products.

They are now looking for a senior React Product Engineer to take ownership of key parts of the product. This is a high-impact role where you will work closely with product and engineering teams, influence technical decisions, and help shape the future of the product.

Assignment Description

You will be responsible for designing, building, and maintaining core product functionality, with a focus on AI-powered user experiences.

The role covers the full software lifecycle, from architecture and implementation to deployment and continuous improvement. You will work closely with product and engineering teams while driving technical decisions independently.

What kind of erson are we looking for?

We are looking for a highly autonomous engineer who enjoys building products from the ground up. You take ownership, move fast, and have a strong product mindset. You are comfortable making technical decisions and delivering solutions with minimal supervision. A genuine interest in AI, agentic systems, and developer tooling is highly valued.

Must Have Qualifications

5+ years of experience with React and TypeScript
Experience building scalable web applications
Experience owning significant parts of a product
Strong understanding of modern frontend architectures
Experience working with APIs and backend integrations
Experience working in cloud environments
Experience across the full software development lifecycle
Experience with AI products, LLMs, or agentic workflows
Experience as a Founding Engineer
Startup or product company experience
Experience building AI agents, code harnesses, or developer tools

What the Client Offers

A chance to work on a cutting-edge creative product combining AI and creativity
Significant impact in an early-stage startup with minimal bureaucracy
A collaborative, ambitious team that values curiosity and rapid learning
Competitive salary and attractive equity package
A strong learning environment with real technical challenges
Centrally located office in Stockholm

Information

Employment type: Permanent position Language: English Location: Stockholm, 5 days a week