Patrick Munnelly

Senior Frontend Engineer

Leading big data analytics provider for financial services — NLP/ML infrastructure processing millions of documents daily for hedge funds, banks and asset managers.

• Built the new payment and subscription flow in React, TypeScript and Material UI, integrating backend billing services — upgrade, downgrade and failed-transaction edge cases for enterprise customers.
• Introduced LaunchDarkly feature flags as the company standard: designed conventions, built helper utilities and onboarded developers — unblocking gradual rollouts, A/B tests and dark launches while reducing release risk.
• Drove test culture — Playwright with 90%+ UI coverage, Jest and React Testing Library, plus SonarQube static analysis — for fewer customer-facing bugs and faster releases.
• Added GitLab CI quality gates (ESLint, type-check, unit tests) on every merge request, and shipped full-stack with Python AWS Lambda + DynamoDB services and Node/TypeScript BFF endpoints.

• React
• TypeScript
• Material UI
• Node.js
• Python
• AWS Lambda
• DynamoDB
• GitLab CI
• LaunchDarkly
• Playwright
• Jest
• SonarQube

Software Engineer

Ethical AI for complex social issues — the STRIAD platform family, including CESIUM, recognized by the OECD and CDEI as trustworthy AI.

• Introduced Cypress E2E testing to the company — framework, conventions and Bitbucket Pipelines integration with Dockerised runners and automated reporting; it became the team default.
• Moved between the CESIUM, STRIAD and STRIAD:AIR codebases — different stakeholders, data domains and deadlines.
• Built full-stack: React, TypeScript, Next.js, Tailwind and Redux frontends over Python FastAPI and PostgreSQL backends on AWS Lambda, deployed via Bitbucket CI/CD.
• The STRIAD family won multiple DataIQ Awards, including the 2023 'Data for Society' award for CESIUM, the child-safeguarding platform built with Lincolnshire Police.

• React
• TypeScript
• Next.js
• Tailwind
• Redux
• Python
• FastAPI
• PostgreSQL
• AWS Lambda
• Bitbucket Pipelines
• Cypress
• Docker

Software Engineer

Construction and fitout firm in Ireland — workspace design and commercial interiors.

• One-person product team: the technical hire designing and building custom software that replaced manual spreadsheets — operational efficiency, employee qualifications, site progress and materials tracking, plus auditing and invoicing tooling.
• Built a React web app and Flutter mobile app sharing a unified Node.js/Express backend — MongoDB for application data, AWS S3 for site photos and qualification documents uploaded from the field.
• Owned the full SDLC — discovery, architecture, build, release, maintenance. The tooling remained in production after I left.

• React
• Flutter
• Node.js
• Express
• MongoDB
• AWS S3

Associate System Developer

First professional role — responsive insurance web applications in a large regulated enterprise.

• Built React and Bootstrap frontends over Java/Spring Boot backends.
• Worked with OracleDB via JDBC and Hibernate, including query and transaction tuning.

• React
• Bootstrap
• Java
• Spring Boot
• OracleDB
• Hibernate