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Send me a short description of the problem and I'll tell you whether I'm the right fit, what it would cost, and how long it would take. No pitch deck.
- Phone
- +46 70 753 73 78
- elinorwigertz
Portfolio
From concept to production
Eleven engagements, from a sensor cast into a wall to Kubernetes across four regions. Each one is written up as the constraint, the decision and what shipped.
11–12M backend requests/s
Principal Engineer · 2026, ongoing
Spotify
Backend, platform and SRE work on Spotify's core infrastructure, at global scale
Backend, platform and SRE work in Spotify's Core Infrastructure group, on the platform serving 11–12 million backend requests per second, globally, for 777 million monthly users. A capacity tracker built solo and used to plan the peak season, a safe way to take faulty machines out of the global fleet, and cluster setup automated with AI agents.
- Traffic
- 11–12M req/s
- Reach
- 777M users, 184 markets
- Cloud
- GCP / GKE
More work
10 further engagements
Storage product shipped, IAM to billing
Serverpod
The full backend stack for Flutter and Dart, deployed in one command
Principal Engineer
GCP / GKE / Kubernetes / Go +12
1000+ units shipped
Lifee
An activity game children wear, from circuit board to classroom
Co-founder & Technical Lead
Hardware Design / Embedded C / FreeRTOS / BLE +6
100+ apps across 4 regions
Volvo Cars
Platform engineering and SRE for a global developer platform
Principal Engineer
Kubernetes / AWS / Azure / Terraform +9
50+ stations delivered
Mud Masters
Real-time scoring system for GYMRACE fitness competitions
Principal Engineer
Raspberry Pi / Node.js / TypeScript / React +5
Zero idle compute cost
Pugstorm
Automated builds and Steam releases for the studio behind Core Keeper
Principal Engineer
GitHub Actions / AWS / EC2 / S3 +6
30+ apps, 4 regions
Dstny
A multi-region platform built from scratch, in the cloud and on-prem
Platform Architect & DevOps Engineer
Kubernetes / AWS EKS / OpenShift / Terraform +11
CE-certified radio hardware
Invisense
Moisture readings through the wall, from sensors with no battery
Firmware & Application Developer
Embedded C / FreeRTOS / nRF52 / BLE +5
Several hundred players a night
Vinterljus
A multiplayer game projected four storeys up, played from phones
Principal Engineer
AWS / MQTT / Next.js / Vercel +2
BLE and storage redesign
Sparv Embedded
A wearable ECG monitor redesigned for Bluetooth and full recordings
System Developer & Hardware Engineer
Hardware Design / PCB Design / Embedded C / BLE +2
Zero to self-service CI/CD
Lynes
From manual deploys to developer self-service
DevOps Architect & Engineer
Kubernetes / AWS EKS / Terraform / Terragrunt +9