Full Stack Software Engineer PHP

About OptimyAt Optimy, we believe that corporations can be a force for good.We’re the leading impact-driven SaaS platform helping companies like L’Oréal, Volkswagen, and BNP Paribas maximize the results of their sponsorship, grantmaking, and community investment programs. More than 350 organizations in 30+ countries — including Airbus, AXA, Roche, Michelin, Diageo, and Air France — trust Optimy to power purpose-driven, high-impact programs.MissionAs part of our 25-person IT Engineering team, you’ll play a key role in delivering high-quality software solutions, raising technical standards, and fostering a culture of continuous learning. Working closely with Product Managers and Designers, you’ll help shape robust and user-friendly interfaces that make a real impact.What You’ll DoDevelop and maintain front-end features in Vue.js, integrated with PHP-based back-end systems.Design, build, and maintain scalable PHP services and APIs.Collaborate with Product Managers to deliver sprint goals in line with roadmap expectations.Ensure code quality, performance, and maintainability through clean, testable code and regular reviews.Contribute to architectural decisions and ensure UI consistency, responsiveness, and performance.Work closely with Designers to turn UI/UX wireframes into high-quality interfaces.Identify bottlenecks, bugs, and performance issues — and proactively suggest improvements.About YouDegree in Computer Science (or equivalent professional experience).3+ years of experience with PHP, Laravel, Vue.js, Bootstrap, Webpack, jQuery, Lodash, or similar.Strong front-end mindset with deep knowledge of best practices.Comfortable maintaining existing architecture while driving new ideas and improvements.Solid experience with Git, branching strategies, and CI/CD practices.The offerHybrid role: 2 to 3 days/week at Brussels HQA long term freelance contract (full time)Practical InformationWe do not provide work permitsStart date: ImmediateOptimy welcomes applications from freelancers only.Why join us ?A chance to use your skills to amplify social impact globally.A diverse, international, and mission-driven culture where your work matters.