Back-End
Web Developer
& CTO
I'm Martin Sarsini — a freelance back-end developer and CTO based between Berlin and Glasgow, working remotely worldwide. I design, architect and build robust web apps in PHP & Symfony, with Clean Code at the core of everything I ship.
Back-End with PHP & Symfony
I build robust, customisable web applications in PHP and Symfony — architecting complex systems that solve real-world problems. Comfortable across MySQL, MariaDB and PostgreSQL, using Doctrine ORM to keep the data layer clean.
Over 20 years with PHP, from version 4.3 to today. The advantage of the PHP & Symfony stack is cost-effective build and deploy — backed by a vast, active community for solving problems fast.
Engineering, Not Just Websites
Great software is more than technical skill. I write Clean Code so teams can read, maintain and extend it — and lean on strong communication and teamwork to genuinely meet a client's needs.
I'm a software engineer, not only a website builder: serverless processes, migration scripts and CLI tools, plus custom web apps — payment systems, chatbots, survey builders and booking systems, tailored to your brand.
Full Spectrum
Back-end is my craft — but I bring a full-stack perspective. A quick look at the rest of what I do.
Fractional CTO & Leadership
Technology strategy, product roadmaps and process optimisation. I lead in-house and remote engineering teams — aligning tech with business goals while keeping teams healthy and productive.
Business Analysis & Product
Translating business requirements into solutions that raise software quality. I sit between stakeholders and developers — shaping project plans and owning QA so the final product truly fits its users.
Front-End & UX
App-like experiences on the web with PWAs — Turbo, Stimulus and Vue.js, no app store required. Backed by real UX process: research, wireframing, prototyping and information architecture.
See What I've Built
Available for back-end and full-stack work with businesses of all sizes — cost-efficient, high-quality delivery with a personal touch, start to finish. Berlin · Glasgow · Remote worldwide.