Open to opportunities

Christopher Ahn

@christopherahn

Message

Senior Golang full-stack engineer delivering low-latency, secure cloud-native platforms and developer velocity.

United States

Message

What I'm looking for

I seek challenging roles building cloud-native, low-latency systems with strong security, observability, and SLO-driven reliability while collaborating cross-functionally to deliver measurable business outcomes.

I am a Senior Software Engineer specializing in Golang full-stack development with over eight years building low-latency, scalable, and secure web platforms. I design and optimize Go microservices, React/TypeScript frontends, and cloud-native architectures (AWS, Kubernetes, Terraform) to reduce latency, cost, and operational toil while raising reliability and developer velocity.

My work emphasizes advanced concurrency (goroutines, channels, worker pools), performance tuning (pprof, flame graphs), and event-driven & gRPC APIs; I have architected systems handling billions of requests annually and improved p99 latency and availability through SLO-driven practices and observability (OpenTelemetry, Prometheus, Grafana).

I collaborate closely with product, risk, and support to translate complex requirements into measurable outcomes, enforce strong security and compliance (OAuth2/OIDC, least-privilege IAM, PCI-aligned handling), and enable teams via reusable libraries, CI/CD automation, and platform governance.

Experience

Work history, roles, and key accomplishments

Senior Golang Full Stack Engineer

Astronomer

Jan 2023 - Aug 2025 (2 years 7 months)

Delivered Go microservices and React/TypeScript frontends for payment workflows, achieving p99 latency reduction from 590ms to 210ms and 99.96% availability while supporting >4.2 billion annual API calls.

Golang React TypeScript gRPC AWS Kubernetes Terraform OpenTelemetry Kafka

Golang & Platform Engineer

Constructor

Sep 2019 - Dec 2022 (3 years 3 months)

Architected modular Go services and event-driven pipelines powering order ingestion and real-time risk evaluation, scaling transaction throughput from 12K to 180K transactions/minute while maintaining low-latency processing.

Golang Kafka React TypeScript Pprof Flame Graphs PostgreSQL Kubernetes Observability

Full Stack Engineer (Golang Focus)

TechCrunch

Sep 2015 - Aug 2018 (2 years 11 months)

Migrated monolith segments to Go microservices and React frontends, reducing deployment window from 3h to 12m and increasing release cadence from monthly to multiple daily while improving auditability and data governance.

Golang React GraphQL REST Kubernetes CI CD Distributed Systems Data Governance Testing

Education

Degrees, certifications, and relevant coursework

University of Houston

Bachelor of Science, Computer Science

2010 - 2015

Completed a Bachelor's degree in Computer Science with coursework in software engineering, systems, and distributed architectures from March 2010 to November 2015.