Open to opportunities

Andrew Nolan

@andrewnolan

Message

Senior full-stack engineer delivering scalable SaaS and fintech solutions with AI-driven automation.

Ireland

Message

What I'm looking for

I seek senior engineering roles building scalable full-stack systems, applying AI/automation, improving reliability, and mentoring teams in a collaborative, product-focused environment.

I am a Senior Software Engineer with 9+ years building high-impact SaaS, fintech, and ecommerce platforms. I focus on architecting scalable frontend applications and robust backend systems while leveraging automation and AI to improve outcomes.

At Intercom, I architected a React + TypeScript messaging module, led migrations to .NET Core microservices, and delivered AI-powered features using OpenAI and LangChain, improving performance and reducing manual workload.

I have a strong track record designing microservices, event-driven systems, and real-time dashboards using technologies like Kubernetes, AWS ECS, GraphQL, and WebSockets. I also automated CI/CD and infrastructure with GitHub Actions, Docker, and Terraform to ensure reliability and rapid delivery.

I mentor engineers, optimize databases and caching strategies, and drive cross-functional initiatives that increase velocity, reduce latency, and raise system availability. I seek roles where I can continue to build scalable systems, apply AI responsibly, and lead engineering improvements.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Intercom

Jun 2020 - Present (5 years 5 months)

Architected a React + TypeScript messaging module improving client-side rendering by 30% for 50k+ daily users and led a migration from Node.js to .NET Core microservice that cut API latency by 40%. Built AI-powered conversation summarization, real-time dashboards, GraphQL gateway, and automated CI/CD and infrastructure to achieve 99.99% uptime and faster deployments.

React TypeScript .NET Core GraphQL Kubernetes AWS Terraform GitHub Actions Redis

Software Engineer

Qualio

May 2018 - Jun 2020 (2 years 1 month)

Developed SaaS compliance tracking and document lifecycle systems reducing approval cycles by 50% and processed 10k+ documents monthly; migrated a monolith to microservices and increased test coverage from 55% to 90%, cutting production bugs by 40%.

Angular .NET Core Python Django Spring Boot RabbitMQ MongoDB Jest Cypress

Full Stack Developer

Circit

Jun 2015 - Apr 2018 (2 years 10 months)

Built fintech features handling 1M+ API requests monthly using React and C#, implemented secure JWT-based auth and real-time notifications that reduced task completion time by 30%, and automated financial data aggregation saving 15 person-hours/week.