Engineering lead with 11 years building distributed systems for fintech and logistics. I grow calm, high-ownership teams and ship platforms that other engineers enjoy using — most recently a payments core processing 4.2M transactions a day at 99.99% availability.
Experience
Engineering Lead, Payments Platform
Apr 2021 — Present
Klarna · Stockholm
- Lead 3 squads (19 engineers) owning the settlement and ledger services across 45 markets
- Cut p99 checkout latency from 820 ms to 210 ms by redesigning the idempotency layer
- Introduced a paved-road service template adopted by 60+ teams, halving time-to-first-deploy
- Hired and onboarded 11 engineers with a 100% 12-month retention rate
Senior Software Engineer
Sep 2017 — Mar 2021
Einride · Stockholm
- Built the fleet telemetry pipeline ingesting 30k events/sec from autonomous trucks
- Migrated core services from VMs to Kubernetes, reducing infra cost by 38%
- Mentored 6 engineers through promotion to senior level
Software Engineer
Aug 2014 — Aug 2017
Spotify · Gothenburg
- Shipped the backend for collaborative playlists used by 70M+ listeners
- Authored internal gRPC style guide still used across the backend guild
Education
M.Sc. Computer Science
KTH Royal Institute of Technology · Stockholm
Aug 2012 — Jun 2014
Thesis on consensus protocols for geo-replicated databases.
Selected Projects
Ledgerline (open source) — github.com/amara/ledgerline
Double-entry ledger library for Go with 2.1k GitHub stars and 40 contributors.