Tech lead · Team lead · Runner
JohanHellstedt
Tech Lead and Team Lead at Sigma Technology Digital Solutions, Stockholm, Sweden.
I lead a team of developers and stay hands-on in the code. Outside of work I'm usually running, cycling or skiing.
What I work on
Engineering
Hands-on development across frontend, backend, architecture and infrastructure.
AI in practice
An everyday tool, like the editor and the terminal. It helps me work faster, while the judgement and the decisions stay with me.
Team leadership
Responsible for my team's professional development. Recently named Coach/Mentor of the Year.
Segments
Side projects I've designed and built.
Career splits
| Start | Role | Where | Time |
|---|---|---|---|
| 2025 | Tech Lead/Team Lead - BackendLeads backend for an e-commerce platform on .NET, React and commercetools, and coaches a team of eight. | Sigma Technology Digital Solutions | Running1 y 7 mo |
| 2022 | Backend DeveloperOwned the backend of Systembolaget's store distribution app: .NET 8, CQRS microservices and Azure. | Avanade | 2 y 7 mo |
| 2021 | Fullstack DeveloperWent from trainee to fullstack developer, building Angular frontends for a startup and client projects. | Softronic | 1 y 5 mo |
| 2020 | Software DeveloperHandled requirements management and UML modelling, and built a proxy server in plain JavaScript with Express. | Metodika | 7 mo |
| 2018 | BSc Information SystemsStudied spring 2018 – spring 2020 | Örebro University School of Business | Graduated 2020 |