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I am Allen Rossan, a Senior Full Stack Engineer with a decade of experience designing and delivering high-performance, cloud-native applications. My core expertise spans React.js, Next.js, Node.js, PHP (Laravel, Symfony), Python (Django), and Rust, complemented by strengths in microservices, API design, CI/CD, and distributed systems. I have led global teams to deliver measurable results, including reducing latency by 40% and boosting deployment efficiency by 60%. I’m passionate about software architecture and technical leadership, aiming to build scalable, reliable, and maintainable solutions in agile, innovation-driven environments. I thrive in remote work with cross-functional teams where engineering excellence aligns with product impact.…I am Allen Rossan, a Senior Full Stack Engineer with a decade of experience designing and delivering high-performance, cloud-native applications. My core expertise spans React.js, Next.js, Node.js, PHP (Laravel, Symfony), Python (Django), and Rust, complemented by strengths in microservices, API design, CI/CD, and distributed systems. I have led global teams to deliver measurable results, including reducing latency by 40% and boosting deployment efficiency by 60%. I’m passionate about software architecture and technical leadership, aiming to build scalable, reliable, and maintainable solutions in agile, innovation-driven environments. I thrive in remote work with cross-functional teams where engineering excellence aligns with product impact.

Allen Rossan

Full Stack Developer, Web Developer, Front-End Developer, +2

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I am Allen Rossan, a Senior Full Stack Engineer with a decade of experience designing and delivering high-performance, cloud-native applications. My core expertise spans React.js, Next.js, Node.js, PHP (Laravel, Symfony), Python (Django), and Rust, complemented by strengths in microservices, API design, CI/CD, and distributed systems. I have led global teams to deliver measurable results, including reducing latency by 40% and boosting deployment efficiency by 60%. I’m passionate about software architecture and technical leadership, aiming to build scalable, reliable, and maintainable solutions in agile, innovation-driven environments. I thrive in remote work with cross-functional teams where engineering excellence aligns with product impact.…I am Allen Rossan, a Senior Full Stack Engineer with a decade of experience designing and delivering high-performance, cloud-native applications. My core expertise spans React.js, Next.js, Node.js, PHP (Laravel, Symfony), Python (Django), and Rust, complemented by strengths in microservices, API design, CI/CD, and distributed systems. I have led global teams to deliver measurable results, including reducing latency by 40% and boosting deployment efficiency by 60%. I’m passionate about software architecture and technical leadership, aiming to build scalable, reliable, and maintainable solutions in agile, innovation-driven environments. I thrive in remote work with cross-functional teams where engineering excellence aligns with product impact.

Available to hire

I am Allen Rossan, a Senior Full Stack Engineer with a decade of experience designing and delivering high-performance, cloud-native applications. My core expertise spans React.js, Next.js, Node.js, PHP (Laravel, Symfony), Python (Django), and Rust, complemented by strengths in microservices, API design, CI/CD, and distributed systems.

I have led global teams to deliver measurable results, including reducing latency by 40% and boosting deployment efficiency by 60%. I’m passionate about software architecture and technical leadership, aiming to build scalable, reliable, and maintainable solutions in agile, innovation-driven environments. I thrive in remote work with cross-functional teams where engineering excellence aligns with product impact.

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Intermediate

Work Experience

Senior Full Stack Engineer at ThoughtWorks

June 1, 2025 - June 1, 2025

Architected multi-region microservices in Rust and Node.js across distributed workloads, reducing global latency by 42%. Implemented Next.js SSR infrastructure with adaptive caching, improving load performance by 35%. Automated deployments with GitHub Actions, Terraform, and Docker, shrinking release cycles from 3 weeks to 2 days. Led cross-regional agile squad with CI/CD and observability, reducing bug-induced rollbacks by 70%. Developed a GraphQL gateway for unified data access with real-time monitoring and API tracing. Contributed to observability/SRE initiatives by integrating Prometheus, Grafana, and logging automation.

Full Stack Engineer at Futurice

February 1, 2022 - February 1, 2022

Built high-performance, cloud-native web platforms using React.js, Node.js, and Django, enabling clients to scale globally with 40% faster page loads. Developed modular design systems and reusable UI libraries in React + TypeScript, increasing development velocity by 30%. Integrated RESTful and GraphQL APIs with microservices in Docker and AWS, enabling zero-downtime deployments. Collaborated cross-functionally on data visualization dashboards for B2B SaaS analytics. Automated testing pipelines with Jest, Cypress, and GitHub Actions, achieving 95% CI/CD reliability and reducing manual QA by 50%. Mentored junior developers and contributed to internal open-source initiatives in Next.js and serverless architectures.

Full Stack Developer at Endava

June 1, 2018 - June 1, 2018

Developed internal enterprise dashboards with Vue.js, Laravel and MySQL, delivering real-time metrics. Enhanced backend performance using Node.js and Redis to offload heavy computations and caching, reducing latency by 40%. Containerized services with Docker + Nginx and introduced deployment automation to raise reliability and speed. Collaborated with UX/design teams to build responsive UI standards and reusable components. Supported infrastructure and DevOps improvements, introducing Kubernetes for staging environments.

Intern - Frontend Developer at Neo Financial

March 1, 2015 - March 1, 2015

Developed responsive web interfaces with React.js and CSS/Sass for banking dashboards. Implemented a component library to standardize UI patterns, reducing UI development time by 25%. Integrated GraphQL endpoints for efficient data fetching. Increased unit test coverage to 92% using Jest and Enzyme. Contributed to performance tuning and early versions of Neo’s rewards platform.