Open to opportunities

Allen Rossan

@allenrossan

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Senior Full Stack Engineer specializing in scalable, cloud-native architectures and performance optimization.

Canada

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What I'm looking for

I seek remote roles in agile, innovation-driven teams focusing on software architecture, technical leadership, and building scalable, reliable systems with measurable product impact.

I am a Senior Full Stack Engineer with 10 years of experience designing and delivering high-performance, cloud-native applications for global clients. I specialize in React.js, Next.js, Node.js, PHP (Laravel, Symfony), Python (Django), and Rust, and focus on building scalable, reliable systems.

At ThoughtWorks I architected multi-region microservices and implemented Next.js SSR infrastructures that substantially reduced latency and improved load performance. I automated deployments with Terraform and GitHub Actions, cutting release cycles from weeks to days and improving deployment reliability.

Previously at Futurice and Endava, I developed modular design systems, integrated REST and GraphQL APIs, and improved backend performance using Redis and containerization. I also contributed to observability and SRE initiatives with Prometheus and Grafana, and mentored junior developers.

I am driven by engineering excellence and product impact, preferring remote, cross-functional teams where I can continue advancing in software architecture and technical leadership to deliver measurable outcomes.

Experience

Work history, roles, and key accomplishments

Senior Full Stack Engineer

ThoughtWorks

Mar 2022 - Jun 2025 (3 years 3 months)

Architected multi-region microservices and Next.js SSR infrastructure, reducing global latency by 42% and improving load performance by 35%; automated releases to cut cycle time from 3 weeks to 2 days and reduced rollback rates by 70%.

Rust Next.js GitHub Actions Terraform Docker GraphQL Prometheus

Full Stack Engineer

Futurice

Jul 2018 - Feb 2022 (3 years 7 months)

Built cloud-native web platforms with React.js, Node.js and Django that improved page load times by 40% and increased development velocity by 30% through reusable UI libraries and modular design systems.

React Node Django TypeScript Docker AWS Jest Cypress

Full Stack Developer

Endava

Apr 2015 - Jun 2018 (3 years 2 months)

Developed enterprise dashboards and backend services using Vue.js, Laravel and Node.js, reducing request latency by 40% and improving deployment reliability via containerization and automation.

Vue.Js Laravel Node MySQL Redis Docker Nginx Kubernetes

Frontend Developer Intern

Neo Financial

Jun 2014 - Mar 2015 (9 months)

Built responsive React.js interfaces and a component library for Neo's rewards platform, reducing UI development time by 25% and raising unit test coverage to 92%.

React GraphQL Jest Enzyme Performance Tuning