Top Tech Jobs & Startup Jobs in Belfast

Manage full lifecycle of retirement accounts including contributions, rollovers, conversions, distributions, RMDs, and tax reporting. Support Form 1099-R and 5498 filing, resolve reporting discrepancies, maintain compliance with IRC/ERISA/FINRA/SEC, handle customer inquiries, and drive process improvements to reduce risk and increase efficiency.

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

Lead and scale monthly close and consolidation across international subsidiaries, ensure US GAAP and SOX compliance, manage statutory filings and audits, evaluate complex technical accounting, design global internal controls, drive automation and process improvements, and lead and develop a high-performing accounting team.

Develop and deliver enablement strategy and training for EMEA GTM teams. Design new-hire and ongoing programs, partner with regional and global stakeholders, create role-specific content, set training goals and metrics, coach sellers and solution consultants, and align enablement to business priorities to drive sales performance and faster ramp.

Support, plan, execute, and deliver engineering programmes, coordinating daily issues while building strong customer and functional relationships.

Lead the Payments Legal Centre of Expertise, provide specialist legal advice on payments and digital assets, shape legal strategy, engage regulators and stakeholders, support product launches (tokenisation, stablecoins, custody, programmable payments), drive process and technology improvements, mentor legal team, and manage legal spend.

Coordinate and manage end-to-end project logistics for the Markets Accelerator and Digital Solutions teams. Draft senior stakeholder communications, maintain project success frameworks and product documentation, support hiring/resource lifecycles, manage budget and operational processes, build university partnerships, and create marketing/branding collateral to communicate project impact.

Citi seeks a Senior Software Engineer (Java) to design and develop complex, high-performance systems for fixed income trade processing, utilizing Java and Spring technologies.

Lead cyber security operations to detect, investigate and respond to threats. Monitor detection systems and security appliances, analyse and escalate incidents, maintain logs, contribute to incident response capabilities, and deliver security education and awareness across the organisation while collaborating with internal teams and external partners.

Develop and maintain scalable backend services and integrations using Java and Spring Boot. Design and consume REST APIs, work with PostgreSQL and Flyway, build event-driven solutions on AWS, containerise with Docker/Kubernetes, write automated tests, monitor with Datadog, and support production systems while collaborating across product and platform teams.

Design, build, and maintain cloud-native backend services and APIs using .NET/C#. Work on AWS serverless architectures, NoSQL data models, CI/CD pipelines, and cloud infrastructure. Collaborate with cross-functional teams, participate in design and code reviews, troubleshoot application and infrastructure issues, and ensure performance, reliability, and test coverage.

Lead end-to-end cybersecurity and information security engagements focused on ISO27001 implementations, audit readiness, and GRC. Conduct risk assessments, internal audits, and support external certification. Deliver incident exercising, develop policies and controls, drive remediation, and manage client stakeholders to achieve measurable security and compliance outcomes.

Design, develop and support Azure-based integration and data solutions across a hybrid estate. Troubleshoot end-to-end integrations, enhance platform reliability, implement improvements, support CI/CD and security practices, and act as senior technical escalation and mentor within a managed services public-sector engagement.

Design and implement Microsoft-focused cloud security architectures using Azure, Entra, Defender suite, and Sentinel. Consult with clients to gather requirements, produce solution proposals, ensure governance and compliance, lead technical delivery, and produce detailed documentation and implementation plans.