Top Tech Jobs & Startup Jobs in Belfast

Coordinates Professional Services operations across the UK and Ireland, maintaining project portfolios, forecasts, billing, revenue, utilization, capacity, margins, backlog, dashboards, and KPI reporting. Supports Sales-to-Services handoffs, PMO governance, risk escalation, leadership reporting, and cross-functional collaboration with project management, sales, finance, billing, and resource teams. The role also improves processes, data quality, and reporting efficiency.

Defines Rapid7’s technical vision and architecture for LLM and agentic AI systems across security products. Leads model strategy, fine-tuning, post-training, inference optimization, evaluation standards, and high-risk initiatives. Builds critical training and inference code, resolves complex technical trade-offs, mentors senior engineers, and influences product and platform strategy. The role requires deep expertise in transformer-based models, PyTorch, distributed training, context engineering, model evaluation, scalable inference, classical ML, and production AI systems.

Monitors and triages alerts, conducts open-source research, identifies online threats and exposed personal information, coordinates PII removal, documents findings, and prepares risk assessment reports. The role also involves social media monitoring, client updates, escalation of complex issues, and applying cybersecurity, privacy, and intelligence principles while working onsite with the Belfast intelligence team.

Supports the planning, development, and improvement of aerospace manufacturing processes, tools, technologies, and production systems. Responsibilities include continuous improvement, waste reduction, automation and digital manufacturing initiatives, industrialisation of new products, production problem-solving, data analysis, and cross-functional collaboration with engineering, quality, operations, supply chain, and production teams.

Provide end-to-end production application support, including incident response, escalation management, monitoring, access and configuration changes, and client communication. Use AI tooling to investigate issues, build automations, and validate outputs. Collaborate with engineering on fixes, mentor teammates, and maintain runbooks and knowledge articles. The role requires strong skills in cloud platforms, APIs, databases, networking, operating systems, scripting, troubleshooting, and customer communication, with participation in an on-call rotation.

Develop and maintain production software for large-scale, real-time advertising systems. Responsibilities include writing tested code, addressing features and bugs, supporting production services, collaborating across teams, and contributing to system architecture and design. The role emphasizes systems programming, scalability, low-latency performance, concurrency, memory management, and reliable enterprise server applications, with opportunities to develop production Rust skills.

As a Senior Site Reliability Engineer, you'll build resilient platforms, automate processes, mentor teams, and drive changes in a cloud-based environment.

Owns the product backlog and roadmap for Workday solutions, gathering customer requirements, prioritizing features, creating user stories, defining acceptance criteria, and measuring product success. The role involves customer workshops, competitive analysis, product launches, cross-functional collaboration with development, sales, marketing, and professional services teams, and occasional support for product demonstrations and technical customer discussions.

Leads value and programme advisory for Workday transformations, advising C-suite sponsors, developing business cases and benefits frameworks, assuring complex programmes, and driving measurable outcomes. The role also originates and wins advisory engagements, supports EMEA sales, and builds the consulting specialism through methods, thought leadership, and team leadership.

Monitors procurement frameworks and pipeline sources, maintains opportunity records and dashboards, researches and qualifies early-stage opportunities, supports procurement responses and bid portals, prepares pipeline reports, and improves processes through automation and AI-enabled tools. The role partners with business development, presales, bid, sales, and delivery teams while ensuring accurate opportunity tracking, effective communication, and timely routing of potential business opportunities.

Leads accounting operations across multiple legal entities, including month-end close, management accounts, reconciliations, statutory and tax submissions, audit preparation, fixed assets, and financial controls. Manages accounts payable and receivable activities and develops a two-person finance team. Partners with operational leaders on budgeting, forecasting, and decision support while improving finance processes, systems, and ways of working.

Leads and develops software engineers across autonomous pods, owning performance, career growth, wellbeing, hiring, and delivery quality. Drives governed adoption of AI-assisted engineering tools, establishes specification, review, security, and testing standards, and evaluates productivity through delivery metrics. Partners with Product and Architecture, removes blockers, supports technical decisions, and promotes Lean continuous improvement in a regulated payments environment.

Develop and deliver complex full-stack .NET solutions across the software development lifecycle in a fintech SaaS environment. Responsibilities include architecture, implementation, testing, deployment, requirements refinement, planning, bug remediation, and feature ownership. The role also emphasizes AI-enabled engineering through coding assistants, custom agents, skills, harnesses, prompts, evaluations, and guardrails. Candidates will collaborate with senior engineers and support teams while contributing to scalable, high-quality software.