Top Tech Jobs & Startup Jobs in Belfast

Lead design, development, and optimization of high-performance ETL pipelines using Ab Initio for Oracle ledger processing. Collaborate with business and cross-functional teams, drive SDLC within Agile, perform SQL-based data investigations, build automation utilities, monitor/resolve production issues, and manage testing and deployments.

The Client Onboarding Analyst coordinates client requests and ensures accurate processing of account setups and maintenance while adhering to banking regulations.

Senior full‑stack engineer responsible for designing and delivering scalable, cloud‑native applications using Java or Python. Solve complex business problems, set coding standards, mentor mid‑level developers, integrate Gen‑AI capabilities (LLMs, prompt engineering, vector search) and third‑party Gen‑AI APIs, and collaborate with management to deploy new products while ensuring compliance and risk controls.

Lead design and implement data strategy and architectures for Funds (IBOR/ABOR, fund accounting, ETFs). Drive data modeling, governance, lineage, integration, and enable reporting while collaborating with engineering and stakeholders.

The role involves writing high-quality back-end code in Java or Kotlin, contributing to architectural decisions, and automating SDLC processes. You will lead a small team, apply AI in projects, and ensure clear communication across distributed teams.

Lead development and enhancement of a trade cost analytics platform; design trade and cost analytics, reconciliation processes, and metrics; manage requirements and projects across the software delivery lifecycle; engage global stakeholders across Front, Middle, Operations, and Technology to deliver reporting, onboarding, and process improvements for transaction expense management.

The Engineering Lead will provide technical leadership, mentor engineers, and drive cultural changes in software engineering practices. Responsibilities include building AI-powered applications, enhancing developer tooling, and ensuring adherence to best practices.

Develop and enhance the Global Market Data low-latency platform for Equities: design microservices, implement new functionality, support production systems, coordinate exchange changes, and troubleshoot with traders and support teams.

Backend Java Developers will design, develop and maintain application systems across the full lifecycle. Roles span Assistant Vice President to Senior Vice President levels and may include technical leadership. Candidates must have strong Core Java experience, knowledge of end-to-end application lifecycles, and will undergo a technical assessment for appropriate role placement within Citi Belfast.

Lead design quality and craft across HR product areas, owning end-to-end UX, mentoring designers, defining reusable patterns/design system contributions, partnering with research, product, and engineering, ensuring accessibility and leveraging AI-enabled design tools to deliver high-quality, test-validated designs on schedule.