Open to opportunities

Andrew Fox

@andrewfox1

Message

I am a Senior full-stack engineer building scalable cloud-native Fintech and SaaS systems.

Ireland

Message

What I'm looking for

I’m seeking senior engineering roles where I can lead end-to-end development of scalable, secure cloud-native systems, tackle real-time performance challenges, and deliver compliant, business-aligned solutions in domains like Fintech or Healthcare.

I am a Senior Full Stack Engineer with 9+ years building scalable, cloud-native applications across Fintech, Healthcare, Ecommerce, and SaaS. I deliver end-to-end solutions—from architecture to deployment—using Node.js, Python, React, and AWS, with expertise in API integration, real-time systems, and secure, high-performance backends.

I led projects that reduced load times by 35% and increased user engagement by 20%, engineered a US stocks trading platform integrating broker APIs and scaled architectures to handle thousands of concurrent users and millions of daily trades. I also built HIPAA-compliant healthcare SaaS integrating OpenAI via LangChain and modernized monoliths into microservices and microfrontend architectures to improve velocity and testability.

Experience

Work history, roles, and key accomplishments

Current

Senior FullStack Engineer

Current

IT Consult

Jun 2022 - Present (3 years 2 months)

Engineered large-scale React/Next.js platforms with SSR and code-splitting that reduced load times by 35% and increased user engagement by 20%; architected trading and e‑commerce systems integrating Alpaca, Kraken, Bybit and IB to support thousands of concurrent users and millions of daily trades.

React Next.js TypeScript Redux AWS Microservices Redis

FullStack Software Engineer II

Fenergo

Jul 2019 - May 2022 (2 years 10 months)

Built a HIPAA-compliant Healthcare SaaS for orthodontists using Python/Flask and AWS, integrating OpenAI via LangChain for multi-step clinical reasoning and automating 3D-scan analysis pipelines to extract diagnostic data.

Python Flask PostgreSQL AWS Lang Chain Celery RabbitMQ React

Software Developer

It@Cork

May 2016 - Jun 2019 (3 years 1 month)

Developed responsive frontend applications and REST APIs for campaign management and marketing analytics, integrating third-party platforms via webhooks and deploying CI/CD pipelines to improve reliability and maintainability.

HTML5 CSS3 JavaScript RESTful APIs CI CD Webhooks Analytics Git

Education

Degrees, certifications, and relevant coursework

Dublin City University

Bachelor of Science, Computer Science

2012 - 2016

Completed a Bachelor of Science in Computer Science at Dublin City University from September 2012 to April 2016, focusing on core computing and software development principles.