Hannes Birgersson
Cloud and Backend Engineer with 8+ years building and operating AWS microservice platforms at scale. Delivered production systems serving 100k+ users across ~30 services, often as the most senior engineer in a team of 2-3. Working in a small team has given me a wide range of experiences. Strong depth in Node.js/TypeScript, AWS infrastructure, and end-to-end software delivery, from architecture to CI/CD and analytics.
- Architected and maintained a platform of ~30 microservices on AWS, serving 100k+ users across the Festina Group's smart watch brands (Festina, Jaguar, Lotus, Kronaby)
- Owned the full backend for the Festina smart watch mobile app, design, delivery, and ongoing operations together with a small team
- Delivered a full-stack digital certificate of authenticity platform for luxury brand L. Leroy, replacing a paper-based process end-to-end
- Built and maintained Google BigQuery analytics pipelines, enabling product and business reporting across all Festina Group smart watch brands
- Led technical direction in a lean 2-3 person team, setting architectural standards, conducting code reviews, and mentoring team members
- Built and maintained the AWS microservice backend powering the Kronaby smart watch app, supporting the product through its full first-generation production lifecycle
- Engineered an over-the-air firmware delivery system to ship software updates across the live Kronaby device fleet
- Developed a real-time user-to-user location tracking service, handling low-latency event distribution across the live user base
- Delivered the resource and asset delivery systems serving the Kronaby app's content needs
- Co-founded a freelance IT consultancy; delivered client projects spanning web and backend development
- Built a full-stack 3D shelf design configurator integrated with CNC manufacturing and order fulfillment
Outside of work I keep myself busy. I've been doing ceramics for a while now, which is a nice change of pace from coding. I'm also into learning languages and have been practicing Russian for about five years. I also love playing instruments, but I'm not very good at it.
I like running different tech experiments at my spare time. Recently it's been a lot around open source AI models, mostly out of curiosity, but also to keep up with the development and capabilities. Most importantly I have a daughter. And a golden retriever, who I'm told I resemble in personality. I'll take that as a compliment.