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Colin Billing

@colinbilling1

Senior full-stack engineer specializing in Python backends and React frontends.

United States
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What I'm looking for

I seek senior engineering roles building scalable, cloud-native web platforms where I can lead architecture, mentor teams, and improve reliability.

I am a Senior Full-Stack Engineer with 10+ years building high-performance web applications across healthcare, e-commerce, and enterprise SaaS. I specialize in React and Next.js frontends paired with scalable Python backends (Django, FastAPI), designing secure APIs and real-time features.

I deliver cloud-native solutions on AWS and GCP, leveraging serverless, containers, and infrastructure-as-code to optimize performance and cost. I’ve led architecture reviews, authored reusable Terraform modules, and implemented high-throughput pipelines that process millions of events per day while reducing operational spend.

I mentor engineers, run hands-on workshops, and align technical execution with business goals. My work emphasizes observability, testing, and maintainable engineering practices to ensure reliable, scalable products.

Experience

Work history, roles, and key accomplishments

UA

Senior Full Stack Engineer

UNHCR, The UN Refugee Agency

Jan 2024 - Aug 2025 (1 year 7 months)

Led cloud-native Python backends (FastAPI) and React/Next.js frontends, standardizing API ingress and security while processing millions of events/day and reducing operational spend ~30% via stream and serverless optimizations.

PE

Software Engineer

Percona

Jun 2017 - May 2021 (3 years 11 months)

Extended Python web platforms and ETL pipelines, optimized SQL and reporting (hours→minutes), and introduced Celery-based async processing to improve reliability and reduce errors.

Education

Degrees, certifications, and relevant coursework

University of Houston logoUH

University of Houston

Bachelor of Science, Computer Science

2009 - 2013

Completed a Bachelor's degree in Computer Science with coursework in software development, databases, and web technologies.

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Colin Billing - Senior Full Stack Engineer - UNHCR, The UN Refugee Agency | Himalayas