Domanik Johnson

At Wells Fargo, I led the move of a payment reconciliation service from a monolith into Go-based microservices on AWS, cutting API p95 latency from 412 ms to 187 ms. I also owned the RESTful and GraphQL gateway layer for billing workflows and account reconciliation. At Wells Fargo, I provisioned DynamoDB tables and Lambda functions with Terraform, and shipped a TypeScript client library that shortened partner onboarding from about 3.5 weeks to 9 days. I mentored four junior engineers and ran weekly Scrum ceremonies. Earlier, at Siemens, I developed RESTful services for an industrial IoT telemetry ingestion platform and helped raise test coverage from 61% to 84%. At Indiana University of Pennsylvania, I maintained a course registration portal and built Node.js and Express.js endpoints for advising data.