Senior Full-Stack / Product Engineer

THE OPPORTUNITY Multiple venture-backed AI and enterprise-software companies are hiring product-minded engineers to own customer-facing systems from concept through production. WHAT YOU WILL DO • Build and ship end-to-end product features across modern frontend, backend and data layers. • Own projects from problem definition and technical design through launch, measurement and iteration. • Work closely with founders, product leaders, designers and customers to translate ambiguous needs into reliable software. • Make pragmatic architectural decisions that balance speed, quality and long-term maintainability. • Use modern AI development tools and, where relevant, integrate LLM or agentic capabilities into production workflows. • Raise engineering standards through thoughtful reviews, testing, observability and operational ownership. WHAT WE ARE LOOKING FOR • Strong production experience building full-stack web applications in a high-velocity product environment. • Depth in TypeScript/JavaScript and a modern frontend framework such as React or Next.js. • Backend experience with Python, Node.js, Go or a comparable language, plus relational databases and APIs. • Evidence of owning meaningful products or features from 01 or through major scale-up. • Comfort operating with incomplete requirements, rapid iteration and direct business accountability. • Clear communication and the ability to work effectively with technical and non-technical stakeholders. PREFERRED BUT NOT ESSENTIAL • Early-stage or founder-level ownership experience. • Experience with AI-native products, LLM applications or data-intensive SaaS. • Cloud infrastructure, CI/CD, observability or distributed-systems exposure. APPLICATION PROCESS Employer identity and full role-specific details will be shared with suitable candidates during the recruiter screening process. To apply: send your CV to perry@w3sourcing.com or contact linkedin.com/in/perrybarrow/ w3sourcing.com/jobs Equal opportunity: Applications are welcomed from qualified candidates of all backgrounds. Eligibility to work in the stated location and any sponsorship availability will depend on the specific employer.