Available for new engagements

Principal Engineer & Architect

I build complete systems. You own them.

15+ years shipping production systems, from circuit boards to multi-region Kubernetes. Fixed-price product delivery, or embedded in your team as a senior engineer, solo or alongside your engineers.

Elinor WigertzStockholm, Sweden

Get in touch See the work

Hardware to cloud: 15 yrsHardware to cloud
Units shipped: 1000+Units shipped
Countries live: 4Countries live
Apps on my platforms: 100+Apps on my platforms

Where the work has run

Systems these teams still run

Funded startups and scaleups through to global enterprises: developer platforms, telecom, games, automotive and consumer hardware.

Serverpod

Platform engineering for the managed cloud behind the open-source Dart backend framework. Private control-plane connectivity, Terragrunt CI/CD, Go tenant operator, Flux GitOps.

Mud Masters

Real-time scoring system for GYMRACE fitness competitions. Custom hardware, LiDAR sensors, Raspberry Pi kiosk. 50+ stations delivered.

Volvo Cars

Platform engineering for global DevEx org. Backstage plugins, ArgoCD self-service, security compliance across 100+ apps in 4 regions.

Pugstorm

Zero-idle-cost CI/CD platform for Unity game studio. Auto-scaling AWS runners, automated Steam deployments.

Dstny

Multi-region Kubernetes platform from scratch across 4 countries. Dual EKS/OpenShift, white-label auth for 10+ enterprise customers.

Lifee

Founded IoT startup from scratch. PCB design, firmware, React Native app, CE certification. 1000+ units shipped.

Invisense

Firmware, React Native app, and CE radio certification for commercial humidity monitoring hardware.

Linköping Municipality

Wall-projected multiplayer game for Vinterljus light festival. AWS backend, MQTT real-time, 10-20+ simultaneous players.

Lynes

DevOps transformation from ground zero. Kubernetes on AWS EKS, Terraform IaC, GitOps enabling developer self-service.

How we work together

Two ways to engage

Hand me the whole problem, or drop me into your team. Both come with the same decisions and the same execution, and both end with you owning what was built.

Fixed price

Product & Solutions

I own the full build and hand it over working. Hardware, software, or any combination, and your team runs it after I leave.

Full system ownership, no coordination between specialists
1000+ units shipped, platforms running in production
Clear deliverables, source code, full handover

PCB & hardware/Embedded C / FreeRTOS/Wireless (BLE, LoRa, Cellular)/React Native / Next.js/Node.js / TypeScript/CE certification

You want a working system in weeks, not a team to manage.

From €40kFeasibility from €6k · 6-10 weeks

Details

Fixed scope or embedded

Expertise & Augmentation

I join your team as a senior engineer or architect. Same tools, same standups, same codebase, delivering from week one.

Expert consultation for a specific problem, days to weeks
Embedded as senior engineer or architect, months
Independent from day one, no ramp-up lag

Platform engineering/Kubernetes / GitOps/GCP / AWS / Azure/Go operators/Dart / Serverpod/CI/CD/Full-stack/Security & compliance

You need depth your team doesn't have, without a permanent hire.

From €5kFixed-scope engagements · One week to 12+ months

Details

Featured work

Built, shipped, handed over

Read the cases

50+ units delivered

Real-time scoring: sensor to screen

Real-time scoring system for European fitness competitions. Custom hardware, embedded software, web frontend. 50+ production units delivered.

Case study available

1000+ units shipped

Lifee: IoT health tracker for children

Circuit board to App Store: firmware, BLE, React Native. 1000+ units shipped to schools and consumers.

Hardware + firmware + app

10-20+ simultaneous players

Vinterljus: interactive festival game

Wall-projected multiplayer game for a public light festival. AWS backend, MQTT, Next.js. 10-20+ simultaneous players via phone.

AWS + MQTT + Next.js

About

One person, the whole stack

15+ years building production systems across every layer. PCB design and firmware at one end, managed cloud platforms and enterprise Kubernetes at the other. I've worked embedded systems, IoT hardware, mobile apps, backend services, DevOps, and cloud architecture professionally, not as side projects.

I work two ways. Fixed price, where I own the build and hand back something your team can run without me. Or embedded in your team as a senior engineer or architect, covering what it cannot cover itself. Either way I make the technical decisions and then I execute on them.

Running WigertzTech AB since 2023. Based in Stockholm, on-site, hybrid or fully remote. Contract, team augmentation, or fixed-price delivery.

I ramp up fast in new domains

Developer platforms: Private control-plane connectivity and a Go tenant operator for Serverpod Cloud on GCP.
Consumer hardware: Shipped 1000+ IoT devices from circuit design through CE certification to market.
Automotive security: PCI compliance and CVE management for Volvo's global platform across 1000+ nodes.
Game infrastructure: Unity CI/CD platform on AWS runners that cost nothing when nobody is building.
Telecom platforms: Multi-region Kubernetes across 4 countries, dual EKS/OpenShift, white-label auth.

Next step

Tell me what you're building

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.

Email me Call +46 70 753 73 78

Email: elinor@wigertztech.se
Phone: +46 70 753 73 78
LinkedIn: elinorwigertz