Top Tech Jobs & Startup Jobs in Belfast

Partners with Finance, Accounting, and IT stakeholders to analyze financial processes, define technical requirements, and deliver scalable system solutions. Designs process flows, data mappings, and decision logic; troubleshoots enterprise finance applications and integrations; coordinates testing, UAT, deployment readiness, and validation. Incorporates SOX controls, auditability, data governance, segregation of duties, and security requirements while identifying automation and AI opportunities.

Supports the Programme Management team by coordinating daily internal and external issues, maintaining customer and functional relationships, and helping resolve programme problems. The role requires detailed planning, knowledge of programme phases from inception through delivery, effective communication, and familiarity with company processes. Applicants must hold an HNC in Engineering or a business-related subject and have at least three years of relevant project management experience in an engineering, supply chain, IT, customer service, or programme environment.

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.

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.

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.

Build and operate distributed, event-driven C# and .NET microservices on Azure and Kubernetes. Own services throughout their lifecycle, including design, deployment, observability, production support, on-call operations, and continuous improvement. Collaborate with distributed teams across time zones while using AI tools for design, coding, testing, reviews, incident investigation, and technical communication.

Develop and optimize Citi’s ultra-low-latency risk engine for cash equities electronic trading. Responsibilities include real-time pre-trade risk checks, position limits, exposure controls, multithreaded and lock-minimal components, messaging and market-data integration, JVM or native performance tuning, and system-level latency optimization. The role also involves architecture leadership, mentoring, cross-regional coordination, testing, and ensuring resilient, compliant trading systems.

Ten-week Human Resources summer internship at Citi providing training and practical experience across HR functions including learning and culture, total rewards, talent management, talent acquisition, HR partnership, employee relations, and policy. Interns receive mentoring, networking opportunities, technology training, and exposure to Citi’s business groups. Responsibilities include contributing to team projects, presenting accomplishments to senior HR leaders, and developing analytical, communication, organizational, and relationship-building skills.

Leads transformation projects within Citi Markets Operations, managing plans, deliverables, requirements, stakeholder engagement, risks, controls, testing, and operational readiness. The role drives process standardization, regulatory change, automation, and risk reduction across global operations and technology teams. It requires strong program management, business analysis, financial services operations knowledge, and experience communicating with senior stakeholders.

Leads, coaches, and develops a telesales team to exceed revenue and KPI targets. Drives new customer acquisition, supports account management and upselling, conducts coaching and call reviews, analyzes performance data, builds a positive team culture, and ensures compliance and call quality standards. The role is office-based in Belfast and requires strong sales leadership, communication, emotional intelligence, and performance-management skills.

Sell Yell’s AI-powered digital marketing and advertising solutions to prospective and existing SME customers. Responsibilities include cold and warm outreach, identifying opportunities, recommending tailored solutions, closing sales, onboarding clients, managing campaigns, monitoring performance, delivering ROI-focused insights and reports, and maintaining digital advertising industry expertise.

Sell Yell’s digital marketing and AI-powered advertising solutions to SMEs through cold and warm outreach. Manage the full sales cycle, including prospecting, solution recommendation, closing, onboarding, client and campaign management, performance monitoring, reporting, and optimization. Build customer relationships, provide data-driven recommendations, stay informed on digital advertising trends, and collaborate with product teams to improve offerings.