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I’m a senior full stack engineer with 10+ years of experience building scalable JavaScript and TypeScript applications using Node.js and modern frontend frameworks on AWS. I’ve led small engineering teams, architected systems serving over 1M daily users, and delivered measurable impact through performance optimization, cost reduction, and faster deployment cycles.…

Andrew Joe Mcguinness

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I’m a senior full stack engineer with 10+ years of experience building scalable JavaScript and TypeScript applications using Node.js and modern frontend frameworks on AWS. I’ve led small engineering teams, architected systems serving over 1M daily users, and delivered measurable impact through performance optimization, cost reduction, and faster deployment cycles.…

Available to hire

I’m a senior full stack engineer with 10+ years of experience building scalable JavaScript and TypeScript applications using Node.js and modern frontend frameworks on AWS. I’ve led small engineering teams, architected systems serving over 1M daily users, and delivered measurable impact through performance optimization, cost reduction, and faster deployment cycles.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Work Experience

Senior Full Stack Engineer at Iflexion

March 1, 2022 - Present

Architected and deployed full-stack applications using NestJS/Express backend with React and Vue.js frontends; led a team of 3 developers and mentored 5+ junior engineers; built responsive SPAs; integrated REST APIs with GraphQL; optimized AWS infrastructure (EC2, Lambda, API Gateway, DynamoDB, CloudFront) achieving 40% cost reduction; implemented CI/CD pipelines using GitHub Actions and AWS CodePipeline, reducing deployment time by 60%; collaborated with cross-functional remote teams to deliver projects ahead of schedule.

Remote Full Stack Engineer at Brainvire

March 1, 2019 - February 1, 2022

Developed Express-based backend and NestJS services; added real-time features with Socket.IO, WebSockets, Redis for scalable full-stack systems; redesigned database architecture and frontend state management, improving app response time for high-traffic scenarios; mentored 5+ junior developers through pair programming and documentation; implemented CI/CD pipelines with GitHub Actions and AWS CodePipeline to accelerate deployments.

Junior Full Stack Developer at December Labs

June 1, 2015 - August 1, 2019

Developed Express-based applications with Angular and jQuery frontends for payments processing and customer management systems; implemented automated testing (Jest, Mocha) achieving 85%+ code coverage; deployed to AWS infrastructure; collaborated with stakeholders to translate business requirements into scalable full-stack solutions.

Remote Senior Full Stack Engineer at IFlexion

March 1, 2022 - Present

Architected and deployed full-stack applications using NestJS/Express backend with React and Vue frontends, supporting 1M+ daily users with 99.9% uptime. Led a team of 3 developers, established code-review processes and technical standards, and built SPAs integrating RESTful and GraphQL APIs for seamless user experiences. Optimized AWS infrastructure (EC2, Lambda, API Gateway, DynamoDB, CloudFront) to achieve ~40% cost reduction while sustaining high performance. Mentored 5+ junior developers through pair programming, documentation, and knowledge-sharing sessions. Implemented CI/CD pipelines with GitHub Actions and AWS CodePipeline, reducing deployment time by ~60%. Collaborated with cross-functional remote teams to deliver projects ahead of schedule.