Available to hire
Hi, I’m James Donnelly, a contract JavaScript developer specializing in React, Vue, TypeScript, Node, and cloud platforms like AWS and GCP. I enjoy building dynamic and responsive web applications, working closely with cross-functional teams to deliver high-quality software solutions. I’m passionate about learning new technologies and continuously improving my skills.
I’ve worked across various sectors, including healthcare, e-commerce, and workforce retention platforms, delivering projects from alpha to production. When I’m not coding, I enjoy spending time with my cats and playing computer games.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Beginner
Language
English
Fluent
Work Experience
Full Stack Engineer at 55/REDEFINED
October 1, 2024 - April 30, 2025Championed the use of Storybook for component driven development in isolation from the primary application. Delivered alpha, beta and v1 releases of a new platform to retain over 55’s in the workforce. Developed responsive, dynamic, and interactive UI components with full customization via Strapi CMS using React and Framer Motion for animations and drag and drop functionality. Backend development included Node, Express, Sequelize, and PostgreSQL. Applied heavy validation using Zod, conducted End to End testing with Playwright, interaction testing within Storybook, unit testing with Vitest/Jest, and visual regression testing. Managed Gitlab CI/CD deployment pipelines and infrastructure via AWS and Terraform.
JavaScript Developer at OPEN HEALTH
October 1, 2024 - January 31, 2025Worked on a Vue/Nuxt 3 dashboard focused project using Pinia for state management, creating data visualisations and interactive maps of the UK healthcare sector for NHS operations. Implemented improved coding standards, linting, formatting, unit testing, and setup Gitlab CI/CD workflows for code quality checks. Created a Storybook library for common components and charts used in client dashboards, all served behind an nginx proxy within a Docker container running on GCP Cloud Run.
JavaScript Developer at BLAZINGLY FAST
September 1, 2024 - October 31, 2024Developed frontend features for an e-commerce fashion brand using Vue 3 and Shopify. Converted new Figma designs into components and pages, supporting A/B testing with VWO during the brand's restyle.
Frontend Engineer at YOUR PARKING SPACE (YPS)
June 1, 2023 - August 31, 2024Implemented new frontend web features for a platform with over 8 million users. Refactored components to Vue 3 and Nuxt 3 improving UI and performance. Collaborated with backend engineers for API design. Enhanced CI/CD pipelines integrating Storybook with visual regression and unit testing. Improved performance and Core Web Vitals (CWV) score by approximately 20%.
Software Engineer (Full Stack) at CINCH
December 1, 2022 - June 30, 2023Redesigned a tightly coupled finance microservice into smaller modern microservices using AWS SDK v3, implemented anti-corruption layers, and utilised FIFO SQS queues for reliable messaging. Applied the Strangler Pattern to transition from legacy to new architecture. Improved CI/CD pipelines with GitHub Actions for deployment and code quality. Collaborated with designers to improve customer UX using Figma and React/Next.js. Worked with cross-disciplinary teams for new features and third party API webhook accommodations.
Software Engineer (Full Stack) at IMA-HOME
June 1, 2022 - December 31, 2022Delivered JAMstack websites with React frameworks Gatsby/Next.js and backend services using PostgreSQL and Drizzle ORM. Translated design systems into UI libraries using React and Storybook. Implemented Eslint and Prettier for linting and formatting. Built and deployed serverless REST APIs with AWS CDK and GCP Cloud Run/Cloud Functions for scalable development and cost efficiency.
Software Engineer (Full Stack) at TRANSPERFECT
July 1, 2021 - June 30, 2022Optimized SPA performance by reducing bundle size using code splitting and lazy loading. Created and consumed REST APIs with Node/Express and PostgreSQL. Improved code quality with Eslint and Prettier. Created UI components in isolation with Storybook. Implemented unit and end-to-end testing with Jest and Cypress. Containerized frontend previews with Docker and deployed on GCP Cloud Run securing access with HTTP Auth and IAM roles.
Full Stack Developer at FREELANCE
April 1, 2019 - July 31, 2021Built user interfaces and web applications using React/Next.js and Vue/Nuxt. Developed REST APIs and integrated third-party APIs with Node/Express and various databases including PostgreSQL and MongoDB. Managed client communications and project expectations effectively. Created performant web experiences and designed easy-to-use UIs. Deployed Dockerized microservices and serverless APIs on GCP Cloud Run and Cloud Functions. Integrated Firebase Auth and Firestore for real-time app features.
Full Stack Developer at BAKED DIGITAL
January 1, 2014 - December 31, 2019Designed and built websites, managed servers, and optimized sites for conversion and SEO using LAMP/LEMP stacks. Developed SSR websites using template engines like Handlebars, EJS, and Nunjucks. Built REST APIs with Node/Express and various SQL databases using multiple ORM libraries. Managed communication to improve client satisfaction.
Full Stack Engineer at 55/REDEFINED
October 1, 2024 - April 30, 2025Led component-driven development using Storybook, building responsive and interactive UI components with React and Framer Motion. Delivered alpha, beta, and v1 releases for a platform aimed at retaining workforce aged over 55. Developed backend services with Node, Express, Sequelize, and PostgreSQL, utilizing heavy validation with Zod. Conducted end-to-end, interaction, unit, and visual regression testing using Playwright, Vitest/Jest, Chromatic, and Storybook. Managed CI/CD pipelines and infrastructure deployment on AWS using Gitlab CI/CD and Terraform.
JavaScript Developer at OPEN HEALTH
October 1, 2024 - January 31, 2025Developed Vue/Nuxt 3 dashboards for NHS healthcare data visualizations with Pinia state management and interactive UK maps. Created a Storybook library for reusable components and charts. Improved code quality by implementing better coding standards, linting, formatting, unit testing, and setting up Gitlab CI/CD workflows. Managed deployment behind an Nginx proxy in Docker container using GCP Cloud Run.
JavaScript Developer at BLAZINGLY FAST
September 1, 2024 - October 31, 2024Contributed to frontend development for an e-commerce fashion brand using Vue 3 and Shopify. Translated new Figma designs into components and pages, supporting A/B testing via VWO during brand restyling.
Frontend Engineer at YOUR PARKING SPACE (YPS)
June 1, 2023 - August 31, 2024Implemented new frontend features for a large platform with 8+ million users, refactoring components to Vue 3 and Nuxt 3, enhancing performance and UI. Collaborated with backend engineers on API design. Improved CI/CD pipelines integrating Storybook with visual regression and unit testing, achieving approximately 20% better performance and Core Web Vitals scores.
Software Engineer (Full Stack) at CINCH
December 1, 2022 - June 30, 2023Redesigned finance microservices using AWS technologies and the Strangler Pattern to migrate from legacy systems to modern microservices. Implemented reliable message handling with FIFO SQS and Dead Letter Queues. Enhanced CI/CD pipelines with GitHub Actions for quality checks and deployments. Collaborated closely with designers to improve customer UX using Figma, React, and Next.js. Worked with cross-functional teams to support new features and API integrations.
Software Engineer (Full Stack) at IMA-HOME
June 1, 2022 - December 31, 2022Developed JAMstack websites with React/Gatsby/Next.js frontend and PostgreSQL backend using Drizzle ORM. Created UI libraries and Storybook components. Enforced coding standards with Eslint and Prettier. Built and deployed serverless REST APIs on AWS CDK and GCP Cloud Run, ensuring cost-effective scaling and fast iteration.
Software Engineer (Full Stack) at TRANSPERFECT
July 1, 2021 - June 30, 2022Improved SPA performance via code splitting, tree shaking, and lazy loading. Developed REST APIs with Node/Express and PostgreSQL/Prisma. Improved code quality using Eslint and Prettier. Built isolated UI components with Storybook and unit/E2E tested using Jest and Cypress. Containerized frontend previews and internal tooling with Docker, deployed securely via GCP Cloud Run.
Full Stack Developer at FREELANCE
April 1, 2019 - July 31, 2021Built user interfaces and web apps using React/Next and Vue/Nuxt. Developed REST APIs with Node/Express integrating PostgreSQL, MongoDB, and multiple ORMs. Managed client communications and project expectations. Deployed Dockerized microservices to GCP Cloud Run and handled serverless async tasks and event-driven workflows using Cloud Functions and Pub/Sub. Integrated Firebase Auth and Firestore for real-time features.
Full Stack Developer at BAKED DIGITAL
January 1, 2014 - December 31, 2019Designed and built websites using LAMP/LEMP stacks with SSR and template engines. Managed servers and optimized sites for conversions and SEO. Developed REST APIs with Node/Express and various SQL databases with ORMs. Maintained client satisfaction via communication and feedback management.
Full Stack Engineer at 55/REDEFINED
October 1, 2024 - April 30, 2025Championed the use of Storybook for component driven development isolated from the primary app. Delivered alpha, beta, and v1 releases of a platform to retain over 55's in the workforce. Developed responsive, dynamic UI components with React and Framer Motion, customised via Strapi CMS. Backend development with Node, Express, Sequelize, PostgreSQL. Heavy validation with Zod. Conducted end-to-end and unit testing with Playwright, Vitest/Jest and visual regression through Chromatic. Managed GitLab CI/CD pipelines and AWS/Terraform infrastructure deployment.
JavaScript Developer at OPEN HEALTH
October 1, 2024 - January 31, 2025Developed Vue/Nuxt 3 dashboards with Pinia state management for the UK healthcare sector (NHS). Built interactive maps with Mapbox and Leaflet.js to visualize healthcare data by region. Improved coding standards, linting, unit testing, and set up GitLab CI/CD workflows for code quality. Hosted app behind nginx proxy in Docker on GCP Cloud Run. Created Storybook libraries for common components.
JavaScript Developer at BLAZINGLY FAST
September 1, 2024 - October 31, 2024Worked with Vue 3 and Shopify frontend development for a fashion e-commerce brand. Translated new Figma designs into UI components and pages, implemented A/B testing using VWO.
Frontend Engineer at YOUR PARKING SPACE (YPS)
June 1, 2023 - August 31, 2024Implemented new frontend features in Vue 2/3 and Nuxt 2/3 for a platform with 8+ million users managing parking spaces. Refactored components to Vue 3 and Nuxt 3 for UI and performance improvements. Collaborated with backend engineers to design APIs. Enhanced CI/CD pipelines integrating Storybook, visual regression testing, and unit testing. Improved Core Web Vitals and performance scores by about 20%.
Software Engineer (Full Stack) at CINCH
December 1, 2022 - June 30, 2023Redesigned finance microservices architecture, fragmenting a tightly coupled legacy service into modern microservices using AWS Lambda, SQS, FIFO queues, and Dead Letter Queues. Applied the Strangler Pattern for seamless migration. Improved performance of CI/CD pipelines with GitHub Actions deploying infrastructure and code quality checks. Collaborated with designers using Figma and React/Next.js to optimize customer journey UX. Integrated third party API webhooks and developed new features.
Software Engineer (Full Stack) at IMA-HOME
June 1, 2022 - December 31, 2022Delivered JAMstack websites using React with Gatsby/Next.js for frontend and PostgreSQL/Drizzle ORM backend. Translated design systems into UI libraries with React and Storybook. Applied ESLint and Prettier for code quality. Created and deployed serverless REST APIs with AWS CDK. Used GCP Cloud Run and Cloud Functions for hosting and cost-effective scaling.
Software Engineer (Full Stack) at TRANSPERFECT
July 1, 2021 - June 30, 2022Improved SPA performance by reducing bundle size via code splitting, tree shaking, dynamic imports. Created and consumed REST APIs with Node, Express, PostgreSQL. Enhanced code quality using ESLint and Prettier. Developed UI components in Storybook. Wrote unit tests with Jest and end-to-end tests with Cypress. Containerized frontend previews and tools with Docker and deployed on GCP Cloud Run with secured access.
Full Stack Developer at FREELANCE
April 1, 2019 - July 31, 2021Built user interfaces and web applications using React/Next and Vue/Nuxt. Developed REST APIs and integrated third party APIs with Node, Express, PostgreSQL, MongoDB, Prisma, Sequelize. Managed client communication and project expectations. Created performant web experiences and UI designs. Deployed dockerised microservices on GCP Cloud Run. Implemented serverless event-driven workflows and secured access via IAM with Firebase integration for realtime features.
Full Stack Developer at BAKED DIGITAL
January 1, 2014 - December 31, 2019Designed and built websites using traditional LAMP/LEMP stacks with Node, Handlebars/EJS templates. Managed servers and optimized sites for SEO and conversions. Built REST APIs using Node/Express and various SQL databases with ORMs. Ensured client satisfaction through consistent communication.
Full Stack Engineer at 55/REDEFINED
October 1, 2024 - April 30, 2025Championed the use of Storybook for component driven development in isolation from the primary application. Delivered alpha, beta, and v1 releases of a new platform for retaining over 55’s in the workforce. Developed responsive, dynamic, and interactive UI components fully customizable via Strapi CMS, using React and Framer Motion for animations and drag and drop functionality. Backend development with Node, Express, Sequelize, PostgreSQL. Heavy validation for components and inbound CMS data using Zod. Conducted End to End testing with Playwright, interaction testing within Storybook, unit testing with Vitest/Jest, and visual regression testing with Chromatic. Managed GitLab CI/CD pipelines and infrastructure deployment via AWS and Terraform.
JavaScript Developer at OPEN HEALTH
October 1, 2024 - January 31, 2025Developed Vue/Nuxt 3 dashboards focused on healthcare sector data visualisations for the NHS across the UK, including an interactive map displaying different types of operations by region. Used Pinia for state management. Implemented improved coding standards, linting, formatting, unit testing, state management and setup GitLab CI/CD workflows for code quality checks. Created a storybook library for reusable components and charts for client dashboards. Deployed using Docker containers and GCP Cloud Run with Nginx proxy and http auth.
JavaScript Developer at BLAZINGLY FAST
September 1, 2024 - October 31, 2024Contributed frontend development for an e-commerce fashion brand undergoing restyle. Translated new Figma designs into Vue 3 components and pages on Shopify with A/B testing using VWO.
Frontend Engineer at YOUR PARKING SPACE (YPS)
June 1, 2023 - August 31, 2024Implemented new frontend features in an Agile team for a platform with over 8 million users and more than 1 million parking spaces across the UK and Ireland. Refactored components to Vue 3 and Nuxt 3 improving UI and performance. Collaborated with backend engineers on API design. Enhanced CI/CD pipelines integrating Storybook with visual regression and unit testing. Improved performance and Core Web Vitals scores by about 20%.
Software Engineer (Full Stack) at CINCH
December 1, 2022 - June 30, 2023Redesigned a finance microservice into smaller modern microservices using AWS SDK v3, with reliable messaging via FIFO SQS queues and Dead Letter Queues. Implemented anti-corruption layer to validate and transform event data. Employed Strangler Pattern for smooth transition from legacy service. Improved CI/CD pipelines with GitHub Actions for deployments and code quality. Collaborated closely with designers to improve UX of customer journeys using React and Next.js. Developed new features and accommodated third party API webhook changes.
Software Engineer (Full Stack) at IMA-HOME
June 1, 2022 - December 31, 2022Delivered JAMstack websites using React (Gatsby/Next.js) frontend and PostgreSQL with Drizzle ORM backend. Translated design systems into UI libraries with React and Storybook. Set up linting and formatting with Eslint and Prettier to maintain code quality. Created and deployed serverless REST APIs with AWS CDK. Used GCP Cloud Run and Cloud Functions for scalable deployments.
Software Engineer (Full Stack) at TRANSPERFECT
July 1, 2021 - June 30, 2022Improved SPA performance through code splitting, tree shaking, and lazy loading. Developed and consumed REST APIs using Node/Express with PostgreSQL and Prisma ORM. Improved code quality with Eslint and Prettier. Created isolated UI components with Storybook. Wrote clean fully tested code using Jest and Cypress. Containerized frontend previews and tooling via Docker and deployed with GCP Cloud Run secured by HTTP Auth and IAM.
Full Stack Developer at FREELANCE
April 1, 2019 - July 31, 2021Built user interfaces and web applications with React/Next and Vue/Nuxt frameworks. Developed REST APIs and integrated third party APIs using Node/Express and various databases with ORMs like Prisma, Sequelize, Bookshelf, Mongoose. Managed client communications and project expectations. Delivered performant web experiences with scalable deployments using Docker, GCP Cloud Run and Cloud Functions. Integrated Firebase Auth and Firestore with backend APIs for real-time features.
Full Stack Developer at BAKED DIGITAL
January 1, 2014 - December 31, 2019Designed and built websites using LAMP/LEMP stack with SSR templating engines like Handlebars, EJS, and Nunjucks. Managed servers and optimized sites for conversions and SEO. Built REST APIs with Node/Express and relational databases using ORM libraries. Maintained client satisfaction through consistent communication and feedback.
Full Stack Engineer at 55/REDEFINED
October 1, 2024 - April 30, 2025Championed the use of Storybook for component-driven development separate from the primary app. Delivered alpha, beta, and v1 releases of a new platform aimed at retaining workforce aged 55+. Developed responsive, dynamic UI with React and Framer motion, providing full customization via Strapi CMS with animations and drag-and-drop features. Developed backend using Node, Express, Sequelize, and PostgreSQL with heavy validation using Zod. Conducted end-to-end testing with Playwright, unit tests with Vitest/Jest, and visual regression testing with Chromatic. Managed Gitlab CI/CD pipelines and infrastructure deployment via AWS and Terraform.
JavaScript Developer at OPEN HEALTH
October 1, 2024 - January 31, 2025Worked on Vue 3 and Nuxt 3 dashboards with Pinia state management for healthcare data visualisation across the NHS UK. Created an interactive map showing regional operational data. Improved code standards with linting, formatting, unit testing, and configured Gitlab CI/CD for code quality checks. Built a reusable Storybook library for components and charts served via Nginx in Docker containers on GCP Cloud Run.
JavaScript Developer at BLAZINGLY FAST
September 1, 2024 - October 31, 2024Front-end development for an e-commerce fashion brand undergoing a restyle. Translated Figma designs into new Vue components and pages with A/B testing using VWO.
Frontend Engineer at YOUR PARKING SPACE (YPS)
June 1, 2023 - August 31, 2024Developed new frontend features iteratively for a platform with 8+ million users and 1+ million parking spaces in the UK and Ireland. Refactored components to Vue 3 and Nuxt 3 improving UI and performance. Designed APIs in collaboration with backend engineers. Enhanced CI/CD pipelines integrating Storybook visual regression and unit testing. Improved performance and Core Web Vitals score by approximately 20%.
Software Engineer (Full Stack) at CINCH
December 1, 2022 - June 30, 2023Redesigned finance microservices into modern, smaller microservices architecture with AWS SDK v3, SQS FIFO queues, and Dead Letter Queues. Validated and transformed event data using an Anti-Corruption Layer. Employed the Strangler Pattern for migration. Improved CI/CD pipelines with GitHub Actions and enhanced customer journey UX with Figma, React, Next.js.
Software Engineer (Full Stack) at IMA-HOME
June 1, 2022 - December 31, 2022Delivered JAMstack websites with React, Gatsby/Next.js frontend and PostgreSQL backend using Drizzle ORM. Created UI libraries with React and Storybook. Enforced code quality with Eslint and Prettier. Created and deployed serverless REST APIs with AWS CDK and GCP Cloud Run/Functions for cost-effective scaling.
Software Engineer (Full Stack) at TRANSPERFECT
July 1, 2021 - June 30, 2022Enhanced SPA performance by reducing bundle sizes via code splitting and lazy loading. Worked with Node/Express and PostgreSQL using Prisma ORM for REST APIs. Improved linting and formatting with Eslint/Prettier. Developed UI components in isolation with Storybook, and maintained comprehensive testing using Jest and Cypress. Containerized previews with Docker deployed on GCP Cloud Run.
Full Stack Developer at FREELANCE
April 1, 2019 - July 31, 2021Built UI and web apps with React/Next and Vue/Nuxt. Developed REST APIs, integrated third-party APIs with Node/Express and various databases. Managed client communications and project expectations. Deployed Dockerized microservices on GCP Cloud Run using Cloud Functions, Pub/Sub, and managed Firebase Auth and Firestore integration.
Full Stack Developer at BAKED DIGITAL
January 1, 2014 - December 31, 2019Designed/build websites and managed servers primarily on LAMP/LEMP stacks. Built REST APIs with Node/Express and SQL databases using ORM tools. Improved site SEO, conversions, and maintained client communications and feedback.
Full Stack Engineer at 55/REDEFINED
October 1, 2024 - April 30, 2025Championed the use of Storybook for component-driven development in isolation from the primary application. Delivered multiple releases of a platform for retaining over 55’s in the workforce. Developed responsive, dynamic, and interactive UI components using React, Framer Motion, and Strapi CMS. Backend development with Node, Express, Sequelize, and PostgreSQL. Heavy validation using Zod. Implemented end-to-end testing (Playwright), interaction testing, unit testing, and visual regression testing. Managed CI/CD pipelines with Gitlab and infrastructure using AWS and Terraform.
JavaScript Developer at OPEN HEALTH
October 1, 2024 - January 31, 2025Worked on a Vue/Nuxt 3 dashboard project for healthcare data visualization across the UK NHS regions. Implemented state management with Pinia and created an interactive map displaying operational data. Setup better coding standards, linting, formatting, unit testing, and Gitlab CI/CD workflows for code quality. Created a Storybook library for reusable components and charts, served behind an NGINX proxy in Docker containers using GCP Cloud Run.
JavaScript Developer at BLAZINGLY FAST
September 1, 2024 - October 31, 2024Frontend development for e-commerce fashion brand undergoing restyle. Translated Figma designs into Vue 3 components and pages with A/B testing using VWO.
Frontend Engineer at YOUR PARKING SPACE (YPS)
June 1, 2023 - August 31, 2024Implemented new frontend features for a platform with over 8 million users. Refactored components to Vue 3 and Nuxt 3 improving UI and performance. Collaborated with backend teams to design APIs. Enhanced CI/CD pipelines integrating Storybook with visual regression and unit testing. Improved performance and Core Web Vitals score significantly.
Software Engineer (Full Stack) at CINCH
December 1, 2022 - June 30, 2023Redesigned finance microservice architecture using AWS services and microservice patterns. Improved CI/CD pipelines with GitHub Actions. Collaborated with designers to enhance customer UX and handled third-party API webhooks. Technologies included React, TypeScript, Node, AWS, GraphQL, and testing tools.
Software Engineer (Full Stack) at IMA-HOME
June 1, 2022 - December 31, 2022Delivered JAMstack websites using React with Gatsby/Next and backend with PostgreSQL and Drizzle ORM. Translated design systems into UI libraries using React and Storybook. Implemented linting and formatting standards. Created serverless REST APIs with AWS CDK and deployed scalable projects using GCP Cloud Run and Cloud Functions.
Software Engineer (Full Stack) at TRANSPERFECT
July 1, 2021 - June 30, 2022Enhanced SPA performance by reducing bundle size with code splitting and lazy loading. Developed and consumed REST APIs using Node/Express and PostgreSQL with Prisma ORM. Improved code quality with ESLint and Prettier. Created UI components with Storybook and wrote clean tested code with Jest and Cypress. Containerized frontend previews and deployed using GCP Cloud Run.
Full Stack Developer at FREELANCE
April 1, 2019 - July 31, 2021Built user interfaces and web applications using React/Next and Vue/Nuxt. Developed REST APIs and integrated third-party services using Node/Express with PostgreSQL, MongoDB, and ORMs. Managed client communications, created performant web experiences, and deployed Dockerized microservices on GCP. Integrated Firebase Auth and Firestore for real-time features.
Full Stack Developer at BAKED DIGITAL
January 1, 2014 - December 31, 2019Designed and built websites, managed servers, optimized conversion and SEO. Developed with LAMP/LEMP stacks, template engines, and built REST APIs with Node/Express and various SQL databases. Maintained client communications and feedback management.
Education
Qualifications
Industry Experience
Software & Internet, Financial Services, Healthcare, Retail, Media & Entertainment, Professional Services, Transportation & Logistics, Gaming
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Beginner
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