Guillaume Brousse
Principal Software Engineer | Principal AI Engineer
Building exceptional digital experiences with modern technologies

About Me
I'm a Principal Software Engineer and Principal AI Engineer with a passion for new technologies, travel, and rugby. With extensive experience in full-stack development and AI implementation, I specialize in creating scalable web applications, implementing AI solutions (OpenAI, Anthropic, Bard), and building robust API services.
I have worked with leading companies in New Zealand, including Onit Ltd, LES MILLS International, and Serato, where I've maintained and enhanced websites, created microservices, and implemented cutting-edge AI solutions. When I'm not coding, you can find me exploring new technologies, sharing knowledge with the developer community.
My Skills
JavaScript
React
Next.js
TypeScript
Node.js
Python
AWS
Docker
Featured Projects
UBJ Rugby Statistics Dashboard
Innovative rugby statistics dashboard platform providing real-time analytics and comprehensive data visualization. Built with Symfony framework, featuring intuitive interfaces for sports analytics, real-time statistics tracking, and advanced data relationships. Enhanced user engagement and platform adoption through powerful visualization tools.
Le Mas Des Costes
A luxury wedding and event venue website in Provence, France. Features include bilingual support, Instagram integration, guestbook, and elegant presentation of the venue's facilities and location.
AquaFit16
Fitness center website with online course booking system. Features include class scheduling, pricing information, FAQ section, and client testimonials for aquagym, aquabike, and swimming lessons.
cursorIgnore
A web-based tool for managing .gitignore and .cursorignore files. Allows users to drag and drop project folders to visualize and generate ignore file configurations effortlessly.
Brousse Ostéopathie
Professional osteopathy practice website. Features include service descriptions, pricing information, business hours, and contact integration for Camille Brousse's practice.
Work Experience
Principal AI Engineer
Onit Ltd
Jul 2024 - PresentLeading AI innovation by architecting and implementing cutting-edge AI solutions using OpenAI, Anthropic, and Bard APIs. Spearheading fine-tuning initiatives and developing custom AI models that drive business value. Building scalable microservices architecture on AWS (Lambda, EC2, API Gateway) with Node.js and TypeScript. Delivering high-performance React/Next.js applications with comprehensive test coverage using Jest and Cypress. Mentoring engineering teams and establishing best practices for AI integration in production environments.
Senior Software Engineer
Onit Ltd
Aug 2023 - Jul 2024Elevated to senior role driving technical excellence across full-stack development. Architected robust serverless solutions on AWS, optimizing performance and reducing infrastructure costs. Implemented advanced AI integrations that enhanced product capabilities and user experience. Collaborated cross-functionally to deliver mission-critical features with zero downtime deployments. Established CI/CD pipelines and automated testing frameworks that improved code quality and deployment velocity.
Senior Software Engineer
Onit Ltd
Apr 2023 - Aug 2023Joined as contract senior engineer, quickly becoming integral to core product development. Modernized legacy systems and introduced TypeScript across the codebase, reducing bugs and improving code quality. Built scalable API services handling millions of requests.
Senior Software Engineer
LES MILLS International
Sept 2021 - Apr 2023Transformed digital fitness platforms serving millions of users worldwide. Led front-end development using React, Gatsby, and TypeScript, delivering features that increased user engagement. Architected serverless backend solutions on AWS Lambda, processing millions of API calls with exceptional performance. Integrated critical payment systems (Google Play, Braintree, Amazon IAP) enabling seamless subscription management. Pioneered adoption of Shape-Up methodology and Basecamp, improving team velocity. Maintained uptime across all production systems.
Senior Software Engineer
Sherbet
Jan 2022 - Mar 2022Spearheaded blockchain innovation in Web3 space, leading Solidity smart contract development on Ethereum. Architected comprehensive API ecosystem using Node.js, AWS Lambda, and GraphQL, resulting in increase in administrative productivity. Transformed Vue.js admin panel, streamlining workflows and enhancing user experience. Built dynamic React.js customer-facing application that increased user retention and active users. Delivered secure, scalable infrastructure supporting critical blockchain operations including wallet management and transfers.
Software Engineer
Serato
Jul 2019 - Oct 2021Drove technical excellence for industry-leading music software company. Refactored and modernized codebase using SLIM framework, improving performance and reducing technical debt. Architected and maintained critical API services integrating Braintree, Zendesk, ActiveCampaign, and Slack. Managed AWS infrastructure (S3, CloudFormation, CloudFront, OpsWorks) ensuring reliable, scalable deployments. Upgraded legacy Magento V1.9 store with modern REST API, extending platform capabilities. Established comprehensive testing practices (Pytest, PHPUnit).
Senior Software Engineer
Postumo
Nov 2020 - Mar 2021Delivered end-to-end solutions as freelance senior engineer. Built dynamic Vue.js applications with sophisticated payment systems and admin interfaces. Designed and implemented scalable REST APIs using Strapi (Node.js), incorporating versioning strategies for future-proof architecture. Seamlessly integrated Stripe, Zendesk, and AWS S3, expanding application capabilities. Applied Agile/Scrum methodologies ensuring on-time delivery and exceeding client expectations.
Symfony Software Engineer
SIBLU
Sept 2018 - Jan 2019Developed high-performance booking platform similar to Booking.com using Symfony and React. Architected robust API platform with Symfony API Platform, enabling efficient data management and seamless integrations. Integrated Firebase for real-time functionality and Mailjet for scalable email communications. Delivered full-stack solutions with payment processing, user sessions, and comprehensive admin interfaces. Leveraged Docker for containerization and Git for version control, ensuring maintainable, scalable codebase.
Symfony Software Engineer
Parking Facile
Dec 2016 - Jun 2018Built comprehensive parking management platform from ground up. Developed scalable Symfony APIs and full-stack applications serving thousands of users. Created intuitive admin and user interfaces optimizing usability and functionality. Integrated critical third-party services (Stripe, Mailjet, Twilio, Plivo, Freshdesk, Slack) extending platform capabilities. Maintained Ionic mobile app (Angular 2) ensuring cross-platform compatibility. Implemented SEO strategies and performance optimizations, improving search rankings and page load times by 60%.
Symfony Software Engineer
UBJ
Sept 2015 - Aug 2018Developed innovative rugby statistics dashboard platform using Symfony. Created comprehensive data visualization tools providing real-time analytics and insights. Built scalable backend architecture handling complex data relationships. Designed intuitive user interfaces for sports analytics, enhancing user engagement and platform adoption.
Symfony Software Engineer
NEXEYA
Jun 2016 - Sep 2016Led high-impact skills management project as Project Lead with team of two developers. Employed Agile/Scrum methodologies using JIRA, Trello, and GanttProject, ensuring timely delivery. Spearheaded full-stack development with Symfony, creating comprehensive skills management website. Designed intuitive admin and user interfaces enabling efficient global usage across company. Delivered scalable, high-performance solution significantly enhancing operational efficiency.
C++ & Arduino Developer
Skeyetech
Apr 2015 - Aug 2015Pioneered innovative drone gimbal control system in cutting-edge project. Designed and developed custom PCB prototype with 3-axis sensor integration. Built encrypted wireless transmission protocol ensuring secure data communication. Developed C++ GUI for intuitive drone and gimbal control. Implemented OpenCV-based object tracking system from live video, enabling automatic gimbal adjustments. Created compelling landing page showcasing product features. Successfully integrated electronics, software, and computer vision technologies delivering breakthrough solution.
Get In Touch
I'm always open to discussing new projects, creative ideas, or opportunities to be part of your visions.
Send me an email