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.

Own the product strategy and roadmap for Apex’s API gateway and observability platforms. Define capabilities such as traffic management, rate limiting, logging, metrics, traces, alerting, dashboards, and reporting. Partner with engineering teams to prioritize work, manage technical and commercial tradeoffs, define measurable outcomes, write requirements and strategy documents, maintain the Jira backlog, and communicate progress to technical and executive stakeholders.

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.

Supports project managers with project plans, trackers, documentation, meeting coordination, minutes, milestone monitoring, action follow-up, reporting, stakeholder communication, and file organization. The placement student will gain practical experience in project management processes and administrative support while helping ensure projects are delivered smoothly and on time.

A business placement role providing hands-on experience across administration, project coordination, customer service, data analysis, sales support, and business operations. The placement holder will support day-to-day activities and business projects while developing communication, teamwork, problem-solving, and time-management skills. The role is fully onsite at the company’s Banbridge headquarters and is intended for students completing a degree placement year.

Manage the full lifecycle of major technology projects supporting Fixed Income and Core Trading Technology. Responsibilities include integrated planning, governance, reporting, resource and budget management, stakeholder communication, requirements gathering, solution design, testing, implementation, and change adoption. The role partners closely with traders, business stakeholders, engineering leads, architects, and global delivery teams while ensuring regulatory alignment and successful delivery outcomes.

Apprentice data professional supporting client projects involving data analysis, analytics, engineering, AI, and digital solutions. Responsibilities include understanding client requirements, developing custom data solutions, learning modern technologies, participating in client meetings, documenting work, delivering training, and pursuing continuous development. The role includes part-time Computing Science study at Ulster University and hybrid work from the Belfast office or client sites.

Apprentices develop custom software and data-driven solutions with experienced developers and consultants. Responsibilities include understanding client requirements, learning technologies, participating in code reviews, meeting clients, writing documentation, conducting training, and improving software development skills. The role includes part-time Computing Science study at Ulster University, exposure to the full development lifecycle, and collaboration with testing, DevOps, architecture, and design specialists.