Top Tech Jobs & Startup Jobs in Belfast

The Senior SOC Analyst monitors and investigates security incidents, manages vulnerabilities, analyzes security data, and leads investigations to improve security posture.

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.

Processes global sales orders, captures contract data, reviews quotes, fulfills software subscriptions, and resolves transactional issues. Partners with Sales, Legal, IT, Commissions, Accounting, and Accounts Receivable to remove bottlenecks and ensure accurate bookings. Supports customer inquiries, system and SKU testing, and cross-functional operational improvements that enhance scalability and proposal-to-cash efficiency.

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

Coordinates event-related creative requests from intake through delivery, briefing designers, managing timelines, reviewing print and digital assets, maintaining documentation, coordinating vendors, and identifying production or logistical risks. The role ensures brand, file, print, and platform specifications are met while improving event creative workflows and keeping cross-functional stakeholders aligned.

Supports UK and international legal entity technology governance, including regulatory reporting, Senior Manager Regime documentation, committee materials, management reports, and coordination across technology stakeholders. Produces accurate PowerPoint and Excel deliverables, manages information flows, supports regulatory and audit initiatives, and ensures timely completion of governance activities. The role requires strong communication, organization, analytical ability, attention to detail, and proficiency with Microsoft Office, Teams, and SharePoint.

Develop and maintain Java-based market access gateway systems connecting Citi’s trading infrastructure with EMEA exchanges. Responsibilities include application development, system enhancements, support and maintenance, vulnerability analysis, testing, debugging, troubleshooting, and stakeholder consultation. The role also provides technical guidance to junior analysts and requires independent problem-solving in a financial services environment. Desirable experience includes containerization, DevOps tools, Unix and shell scripting, and low-latency coding principles.

Develop enterprise-scale Python applications for Citi’s Wholesale Credit Risk Technology team. Build solutions using Python, FastAPI, Java, MCP, LLMs, and RAG architecture; collaborate with onshore, offshore, and matrix teams; manage CI/CD pipelines and Kubernetes deployments; investigate bugs, resolve complex issues, provide production support, and communicate progress to project leadership.

Work on the Core team building and maintaining APIs and services for baskets, orders, checkout, promotions, and capacity. Implement small-to-medium features, write tests, participate in code reviews and on-call rotations, collaborate with stakeholders, and use version control and AI coding tools to improve reliability and scalability.

Develops evidence-based online safety regulation and policy for Ofcom, addressing harmful and illegal online content. Responsibilities include researching complex issues, analysing evidence, drafting guidance and policy recommendations, managing cross-functional work, engaging stakeholders, and advising senior leaders. The role may cover AI, age assurance, recommender systems, content moderation, and sensitive online harms such as terrorism, child sexual abuse, and self-harm.

Provide expert technical advice on age assurance and digital identity technologies within online safety regulation. Lead research and evaluations, assess technical feasibility and risks, translate complex concepts for policy and leadership audiences, prepare briefings and demonstrations, monitor emerging trends, and engage with academia, industry, public bodies, and external technical groups.

Develop and maintain high-quality C#/.NET applications across multiple layers. Apply secure, scalable, and performant development practices; contribute to architecture, estimation, product planning, and requirements. Mentor junior engineers, collaborate on technical decisions, troubleshoot live applications, and support continuous integration and delivery. Communicate effectively with technical and non-technical stakeholders while balancing user needs and commercial constraints.

Manage a designated sales territory by acquiring new customers, growing existing accounts, and maximizing equipment and service revenue. Develop territory business plans, execute sector sales strategies, maintain CRM activity records, coordinate internal teams, leverage marketing and financing options, and manage opportunities through timely follow-up and close. The role requires capital equipment sales experience, strong relationship-building, planning, organizational, analytical, and problem-solving skills.