Top Tech Jobs & Startup Jobs in Belfast

Lead the engineering team responsible for Testlio’s core platform capabilities. Set technical direction, own delivery and roadmap execution, modernize legacy systems, and build production agentic workflows using AI. Contribute hands-on through coding, architecture, reviews, production support, reliability improvements, and observability. Partner with product and AI/ML teams while mentoring engineers, improving development standards, and reducing technical debt.

Participate in paid remote sessions (~1 hour) to complete a real subscription purchase using Apple Pay or Google Pay from specified countries, then report whether the payment flow worked as expected. Tests are done on your own computer; approved transaction costs will be provided.

Design and implement scalable, production-grade services and architectures to transition a monolith into modular services. Define architectural standards, integrate secure AI/LLM patterns, ensure AWS-based high availability and cost/security practices, and advise product and exec teams on technical tradeoffs.

Remote freelance functional tester to create a PayPal Business account for an Italian Limited Company, record bugs, and report issues via Testlio. Requires brief account setup and a paid ~2-hour testing session. Work is paid hourly and done remotely.