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Peter Sjolin
From United States 04:15 PM (GMT-07:00)
$75/hr or $149,996/yr

Active 5 hours ago


Member since Nov 2026

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Senior Go Backend and Solutions Engineer

Solutions Engineer
Available for hire
Years of experience
20+ years
Experience level
Senior
Available for
Full-time, Contract
Download Resume / CV

Backend engineer with 20+ years of experience and 7+ years of production Go. I ship SaaS products end to end as a solo founder (Market Verdict, MyLoanKit, dRdN): Go APIs, PostgreSQL, Stripe billing, container deploys and monitoring. Before that I built a Go payments-rules engine for healthcare invoices at Nomi Health, gRPC APIs and ETL on Kubernetes/GCP at DYL, and a RabbitMQ pipeline at ~30M messages/day at Metals.com. Strengths: debugging complex systems to root cause, refactoring legacy code, performance work, and test design. I work daily with AI coding agents in a test-gated CI workflow. Also Python, Java (Sun Certified) and TypeScript.

Languages

Employment History

Senior Go Engineer (contract) at Salesforce 2026 - 2026
Go evaluation project for an AI-assisted access-auditing product: control owners and permissions with a database-backed audit trail, audit alerts through a Slack bot; later a Java/Maven task with an offshore team.
Go Developer at Nomi Health 2021 - 2022
Invoice-adjudication rules engine for healthcare payments: Go serverless on AWS in a HIPAA environment.
Senior Software Developer at DYL 2020 - 2020
gRPC APIs and ETL over PostgreSQL and Cassandra; Kubernetes on GCP with Terraform; Datadog monitors and incident process; mentored engineers through the move to fully remote.
Go and AI Software Engineer, founder at Pigfox LLC Current 2019 - Now
Shipped solo SaaS products end to end (Market Verdict, MyLoanKit, dRdN): Go APIs, PostgreSQL, front end, Stripe billing, container deploys and monitoring; public Go labs and libraries; Go DEX arbitrage bot.
Senior Go Developer and Architect at Metals.com 2019 - 2019
RabbitMQ pipeline at ~30M messages/day with Twilio SMS fan-out; bulk-loaded 732,432 rows into AWS Aurora in 60 seconds.

Education

BS, General Mathematics with specialization in computing at UCLA 1996 - 1999