Top Tech Jobs & Startup Jobs in Belfast

Lead backend work for GitLab's Spec-Driven Development: design and build APIs, data models, evaluation systems, and agent-driven workflows using Ruby on Rails and Python. Ship production services, benchmark LLM workflows, coordinate multi-person projects, mentor engineers, and collaborate with product and design in an all-remote, async environment.

Build and maintain performant, secure frontend features for repository management using Vue.js and GraphQL. Collaborate across product, design, and backend teams, improve reliability and observability, write tests, participate in on-call and incident response, and apply AI tools responsibly to accelerate development while ensuring quality and safety.

Design and build GitLab Duo CLI features in TypeScript, shape AI-assisted developer experiences, improve CLI reliability, observability, and performance, collaborate across Developer Clients, and provide technical leadership and mentorship.

Design, build, and maintain backend services and APIs for GTM and growth platforms; contribute across the stack; resolve performance, scalability, and reliability issues; review code; mentor junior engineers; document architecture and design decisions.

Own a book of mid-market accounts across the Balkans, running full sales cycles from discovery to close. Build customer relationships, document buying criteria and accurate pipeline data, perform win/loss analyses, collaborate with technical and post-sales teams, and contribute customer feedback and best practices to improve GitLab's sales processes.

Perform outbound prospecting to generate qualified meetings and pipeline across assigned territory. Research and prioritize accounts, execute multi-touch outreach using Outreach, log activity in Salesforce, collaborate with marketing, sales, and customer success, attend events, document processes, and mentor new BDRs.

Lead a team that integrates third-party and modular features into GitLab's Dedicated SaaS platform. Ensure high availability (99.99%+), drive operational excellence, automate toil, own incident management, prioritize via data, recruit and develop engineers, and use AI to boost productivity and guide technical strategy.

Lead and grow a distributed EMEA Support Engineering organization, owning people strategy, service delivery, SLAs, escalations, regional coordination, AI-assisted tooling adoption, and representation of EMEA customer needs into product and global support strategy.

Design and deliver end-to-end features for DAP onboarding and repository/background flows. Build autonomous and scheduled agents that act on customer codebases, improve onboarding experience, collaborate on shared interfaces, review code and designs, and contribute to an async-first, distributed team's technical quality and ownership culture.

Lead a 0-to-1 pilot team to find and fix high-leverage SDLC friction, instrument system-level metrics (MRPM, pipeline success rate, latency), recruit and mentor four engineers, design and implement durable fixes, and drive adoption across engineering teams while reporting metric-driven outcomes to leadership.