Top Tech Jobs & Startup Jobs in Belfast

Lead the Client Platforms and Configuration product suite at Apex, overseeing product strategy, enabling cross-domain configuration, managing APIs, ensuring operational excellence, and guiding client onboarding processes.

The Senior AI Engineer will design, optimize and deploy AI systems in cybersecurity, collaborating with cross-functional teams and mentoring junior engineers.

Build and maintain high-traffic React applications for ad-serving workflows. Translate design mocks into responsive reusable components, integrate with RESTful services, write unit-tested production code, respond to bugs and performance issues, collaborate across distributed teams, and support services in production.

Provide technical support for the iManage product suite: diagnose and resolve software/configuration issues, collaborate with customers and integrators, maintain deep knowledge of Windows servers, networking, databases, web and mobile technologies, document best practices, and proactively reduce problem recurrence.

Manage customer and supplier communications for Aftermarket operations, lead a team (up to 15), develop supply chain strategies, ensure parts availability, control costs, maintain SAP data/automation, and drive supplier performance and process improvements to meet schedule and revenue targets.

Lead post-deployment Workday Absence activities: configure and optimize Absence modules, support clients, manage escalations, collaborate with teams, and drive continuous improvement across Workday delivery services.

Provide post-deployment support for Workday Financials P2P: triage and resolve tickets, meet SLAs, improve processes, participate in client meetings, mentor junior consultants, and help optimise support and delivery practices.

Provide post-go-live Workday integration support: troubleshoot tickets, resolve issues, build and test integration solutions, liaise with customers, lead workshops, and improve tools/processes within an AMS environment.

Lead UKI corporate broking and advisory coverage for FTSE and large corporate clients. Provide equity story, fundraising, M&A and defence advice; manage transaction processes; prepare pitch and marketing materials; apply financial, valuation and market analysis; liaise with clients, regulators and internal teams; engage ECM platform; mentor and develop junior team members.

Join the credit quantitative strategists team to deliver risk and PNL analytics, support trading, and develop pre-trade analytics solutions using advanced technologies.

Design, prototype and deploy generative AI solutions (RAG, agents, LLM integrations). Build cloud-native, production-ready systems, collaborate cross-functionally, and apply LLMOps, model evaluation, and DevOps practices.

Consult on security management for industrial control and operational technology systems (SCADA, DCS, PLCs, RTUs), industrial IoT, and electricity network control. Perform OT cybersecurity risk management, architecture, and security monitoring across critical infrastructure sectors, ensuring compliance with standards (NCSC NIS, ISO 27001/27005, NERC CIP, IEC 62443, NIST CSF). Work agilely with cross-functional teams, clients, and on-site assignments.

Design, build and deploy AWS-based production data pipelines, data warehouses and lakes. Ingest, process and curate large structured and unstructured datasets using Java/Python/Scala, Spark and SQL. Collaborate cross-functionally in agile teams, perform data extraction via APIs and scripting, and deliver scalable analytics solutions using AWS data services.

The Java Technical Lead is responsible for delivering Capital Markets applications, leading projects, and mentoring junior developers while ensuring adherence to architectural guidelines and engineering best practices.

The Program Manager will lead strategic initiatives focused on enterprise resiliency, overseeing testing, recovery, governance, and collaboration for critical applications.

Lead strategic initiatives for operational resilience, ensuring compliance with regulations and enhancing technology practices across Citi's global operations.

The Engine Preparation Engineer performs pre-delivery inspections and customizations on Caterpillar engines, ensuring safety and quality while working in a fast-paced environment.