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I am a Senior Full-Stack Engineer with 11 years of experience designing, building, and scaling high-performance web applications, with a strong track record in fintech. I design elegant, reliable software from pixel-perfect UI components in React/Angular to scalable backend services in Node, Spring Boot, and Django, while automating DevOps workflows with Docker, AWS, and CI/CD pipelines.\n\nI enjoy collaboration in fast-paced Agile teams, mentoring peers, and continuously improving systems and processes. I’ve led migrations to modern databases like MongoDB, integrated AI-assisted tools into development, and documented onboarding and architecture to accelerate team growth.…I am a Senior Full-Stack Engineer with 11 years of experience designing, building, and scaling high-performance web applications, with a strong track record in fintech. I design elegant, reliable software from pixel-perfect UI components in React/Angular to scalable backend services in Node, Spring Boot, and Django, while automating DevOps workflows with Docker, AWS, and CI/CD pipelines.\n\nI enjoy collaboration in fast-paced Agile teams, mentoring peers, and continuously improving systems and processes. I’ve led migrations to modern databases like MongoDB, integrated AI-assisted tools into development, and documented onboarding and architecture to accelerate team growth.

John Smith

Full Stack Developer, Web Developer, Back-End Developer, +5

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I am a Senior Full-Stack Engineer with 11 years of experience designing, building, and scaling high-performance web applications, with a strong track record in fintech. I design elegant, reliable software from pixel-perfect UI components in React/Angular to scalable backend services in Node, Spring Boot, and Django, while automating DevOps workflows with Docker, AWS, and CI/CD pipelines.\n\nI enjoy collaboration in fast-paced Agile teams, mentoring peers, and continuously improving systems and processes. I’ve led migrations to modern databases like MongoDB, integrated AI-assisted tools into development, and documented onboarding and architecture to accelerate team growth.…I am a Senior Full-Stack Engineer with 11 years of experience designing, building, and scaling high-performance web applications, with a strong track record in fintech. I design elegant, reliable software from pixel-perfect UI components in React/Angular to scalable backend services in Node, Spring Boot, and Django, while automating DevOps workflows with Docker, AWS, and CI/CD pipelines.\n\nI enjoy collaboration in fast-paced Agile teams, mentoring peers, and continuously improving systems and processes. I’ve led migrations to modern databases like MongoDB, integrated AI-assisted tools into development, and documented onboarding and architecture to accelerate team growth.

Available to hire

I am a Senior Full-Stack Engineer with 11 years of experience designing, building, and scaling high-performance web applications, with a strong track record in fintech. I design elegant, reliable software from pixel-perfect UI components in React/Angular to scalable backend services in Node, Spring Boot, and Django, while automating DevOps workflows with Docker, AWS, and CI/CD pipelines.\n\nI enjoy collaboration in fast-paced Agile teams, mentoring peers, and continuously improving systems and processes. I’ve led migrations to modern databases like MongoDB, integrated AI-assisted tools into development, and documented onboarding and architecture to accelerate team growth.

Skills

Experience Level

Expert

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Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Senior Full Stack Engineer at PayPal

October 1, 2021 - Present

Built complex UIs with React/Angular and integrated design systems; enhanced front-end performance; designed Java-based microservices; containerized with Docker; collaborated in a 15-person Agile team; developed RESTful APIs with Django/Flask; migrated legacy data to MongoDB; integrated AI-assisted tooling; documented onboarding and architecture.

Staff Full Stack Engineer at PayPal

October 1, 2021 - November 25, 2025

Architected and implemented complex UIs with React/React Native (Material UI, Ant Design) and designed design systems to boost user engagement. Optimized Node/NestJS backend performance and refactored PostgreSQL queries, improving latency and throughput. Improved frontend load speeds via PageSpeed optimizations and server-side enhancements. Led Docker-based containerization, reducing AWS Lambda deployment times by 40%. Created Node backend services and integrated Python-based AI models for real-time analytics. Implemented RBAC and custom middleware for granular permission enforcement. Collaborated in a 15-person Agile team and contributed to incident management and release monitoring. Introduced AI tooling into the development workflow and authored onboarding docs reducing ramp-up time by 30%.

Full Stack Developer / Full Stack Engineer at Plaid

September 1, 2021 - September 1, 2021

Authored 50+ unit and integration tests with Jest and Cypress for Vue applications, reducing bug reports. Built front-end apps with Next.js serving 5M+ users with 99.9% uptime; integrated Firebase for real-time data syncing. Led a team of 5 engineers in an Agile environment, enforcing code quality with ESLint and Prettier. Optimized RESTful API consumption and client-side rendering, cutting load times by 20% and boosting customer satisfaction. Implemented load balancing and real-time observability with Prometheus and Grafana across distributed Node.js and ASP.NET Core microservices. Orchestrated Serverless Framework deployments to scale microservices and reduce infra costs. Created a developer wiki with standardized practices and CI/CD configurations.

Full Stack Engineer at Plaid

August 1, 2018 - September 1, 2021

Led development of web apps using React/React Native; restructured 15+ pages in Vue.js; implemented unit/integration tests with Jest/Cypress; built RESTful API and optimized client-side rendering with Next.js; improved database queries (MongoDB/MySQL) and leveraged GraphQL; enhanced Lighthouse scores and deployed microservices with Serverless Framework; created a developer wiki for onboarding.

Full Stack Developer / Full Stack Engineer at Plaid

August 1, 2018 - September 1, 2021

Led frontend applications with Next.js, supporting over 5 million users, achieving 99.9% uptime and a 20% improvement in responsiveness. Implemented real-time data syncing with Firebase; authored 50+ unit and integration tests using Jest and Cypress for Vue applications. Guided a team of 5 engineers in an Agile environment and enforced code quality with ESLint and Prettier. Elevated backend performance by deploying load balancing strategies and real-time observability with Prometheus and Grafana across distributed Node.js and ASP.NET Core microservices. Optimized RESTful API consumption and client-side rendering in React.js, reducing load times by 20% and driving a 30% increase in customer satisfaction. Implemented Lighthouse audits, Webpack optimization, SEO improvements, mobile-first design, and WCAG compliance. Orchestrated Serverless Framework deployments to scale microservices and reduce infrastructure costs. Created a developer wiki detailing best practices, API references, and C

Intern / Junior Full Stack Developer at TrueAccord

July 1, 2018 - July 1, 2018

Developed and maintained a responsive web application using React/React Native, improving state management and user engagement. Built high-availability microservices using .NET Core, Node.js, and GraphQL with OAuth2-based authentication for secure, real-time data sync and 99.95% uptime. Led bi-weekly design review sessions to align UI components across multiple client projects, reducing UI defects by 20%. Designed and tuned data models using PostgreSQL and MongoDB with Sequelize, improving performance and scalability. Contributed to a 6-person team with Azure Cloud exposure and PowerShell/Azure CLI scripting. Authored onboarding materials for junior developers to accelerate ramp-up.

Junior Full Stack Developer (Internship) at TrueAccord

June 1, 2014 - July 1, 2018

Developed and maintained responsive web apps with React/React Native, improving state management and user engagement by ~30%. Built high-availability microservices using .NET Core, Node.js, and GraphQL with OAuth2 for real-time data sync and 99.95% uptime. Led bi-weekly design reviews to standardize UI components across five client projects, reducing UI defects by ~20%. Designed data models in PostgreSQL and MongoDB using Sequelize/Mongoose to support scalable transactional and document-based systems. Contributed to a six-person team and gained experience with Azure Cloud, PowerShell, and Azure CLI. Authored onboarding materials to accelerate ramp-up for junior developers.

Intern / Junior Full Stack Developer at TrueAccord

June 1, 2014 - July 1, 2018

Developed and maintained a responsive web application using React/React Native, improving state management efficiency and user engagement. Engineered high-availability microservices using .NET Core, Node.js, and GraphQL with OAuth2-based authentication for secure, real-time data synchronization, achieving 99.95% uptime. Led bi-weekly design reviews to align UI components across five client projects, reducing UI defects by 20%. Designed and tuned data models with PostgreSQL and MongoDB using Sequelize ORM to support scalable transactional and document-based systems. Contributed to a 6-person team, deepening full-stack expertise and advancing Azure Cloud Infrastructure management and automation via PowerShell and Azure CLI. Authored onboarding materials to standardize practices and accelerate ramp-up.

Junior Full Stack Developer at TrueAccord

May 1, 2014 - July 1, 2018

Built pixel-perfect UI components with React; developed backend services in C# and Java; improved test coverage with Sequelize/SQL; implemented Azure DevOps pipelines; collaborated with designers for UI consistency; gained Azure Cloud experience.