Senior Full Stack Engineer (TypeScript / AWS)

Senior Full Stack Engineer (TypeScript / AWS) Apply here! We usually respond within three days Senior Full Stack Engineer (TypeScript / AWS) Location and basis Nearshore contract, engaged on a B2B basis. Starting as soon as possible. Fully flexible working: home, office, or a mix, your call. We just ask that you're based within one of these areas: Romania: within 50 miles of Bucharest, Cluj or Iasi Bulgaria: within 50 miles of Sofia Applications from outside these areas won't be considered. The engagement You'll join a long-term engineering team on a high-volume online marketplace, part-way through a major, multi-year technology transformation. A version 2 build is underway, and a move to AWS is under active evaluation as part of that. The current client-facing platform runs on PHP and Laravel. The direction of travel is a service-based architecture built in TypeScript and Node. You'll write the new world and help maintain the old one. That means writing TypeScript day to day, while being able to read PHP and make changes to the existing platform where needed. This is genuinely end-to-end full-stack work: front-end, APIs, data, auth and service architecture. We're after broad depth rather than a single-language specialist. This is a long-term role, part of the fabric of the team rather than a short engagement. No juniors. This is a demanding, fast-paced environment. You'll need to be productive quickly without a long ramp. The platform This is a genuinely large-scale marketplace. Very few platforms handle a product catalogue or transaction volume at this level. The roadmap includes agentic AI workflows built into the platform, retail media integrated directly into the marketplace, and infrastructure work targeting cost and performance at high volume. A lot of this is being attempted at volumes that have rarely been tested in a marketplace before, so the work leans research-led rather than routine. Who this suits This is a fast-paced scale-up environment on a complex platform. You'll do well here if you're comfortable with ambiguity and shifting ground, and confident enough to advocate for the technical decisions you make. What we need The essentials: Senior to principal full-stack experience, genuinely end-to-end across front-end, APIs and data Strong hands-on AWS, with infrastructure as code (Terraform or CDK) You write TypeScript and JavaScript, and can read PHP (Laravel) and make changes to it You can advocate for technical decisions and communicate them clearly Comfortable delivering at pace in a complex, high-volume environment Comfortable working in English, written and spoken Nice to have: Retail or e-commerce background Experience building service-based platforms in AWS GenAI or agentic workflows in your engineering practice Ready to apply? Submit your application below. Locations Bucharest, Cluj-Napoca, Iasi, Sofia Employment type Contract Remote status Fully flexible! No expectation to come to the office but you're also free to use the office when you fancy!!