Open to opportunities

Gregory Walker

@gregorywalker

I build high-throughput Go backend platforms for cloud-native, regulated enterprise workflows.

I've built Go services at Nationwide Marketing Group and SteadyStake for regulated workflows, payments, APIs, and distributed processing. My systems process millions of daily events, support hundreds of thousands of users, and run on Kubernetes with Docker, gRPC, REST, Kafka, Redis, and PostgreSQL.

I improve production performance through profiling, benchmarking, concurrency design, and operational telemetry; recent work reduced peak container memory by 31% and p99 response time by 42%. I also lead code and design reviews, document architecture and runbooks, and coach engineers on testing, concurrency, and operational readiness.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer

Nationwide Marketing Group

Nov 2022 - Jun 2026 (3 years 7 months)

Built Go services for regulated enterprise workflows, processing 2.4M events per day with p95 latency below 180 ms. Designed a Go backend platform on Kubernetes for 650K+ users, maintaining 99.95% service availability.

Go Kubernetes Docker gRPC REST PostgreSQL Redis Kafka CI CD Distributed Systems Concurrency Profiling Metrics Code Review

Senior Software Engineer

SteadyStake

Aug 2020 - Oct 2022 (2 years 2 months)

Reworked payment and account workflow services in Go, sustaining 3x higher throughput across 100K+ concurrent sessions. Moved high-volume API workloads into Kubernetes deployments with Docker and CI/CD pipelines.

Go Kubernetes Docker CI CD REST gRPC Kafka MongoDB Redis Profiling Concurrency CHANNELS Controller Runtime Code Review

Software Engineer

WebCreek

Jun 2019 - Jul 2020 (1 year 1 month)

Introduced Go services for real-time platform workflows, supporting 100K+ daily requests with p95 latency below 220 ms. Containerized service components for Kubernetes and established Jenkins delivery jobs.

Go Kubernetes Docker Jenkins REST Kafka TypeScript React Unit Testing Integration Testing JFrog Artifactory

Associate Software Engineer

Twilio

Apr 2015 - May 2019 (4 years 1 month)

Delivered Java migration services for 1M+ legacy records, reducing conversion time from 10 hours to 2.5 hours. Created REXX batch conversion tools handling 30+ dataset formats, reducing manual work by 80%.

Java REXX ETL Data Migration Validation Testing Release Coordination Documentation