Top Tech Jobs & Startup Jobs in Belfast

Graduate role supporting aerospace aftermarket activities, including customer relationship management, spare parts, MRO, supplier management, supply chain coordination, commercial and contract support, and process improvement. The position involves collaborating with customers, engineering, operations, suppliers, and commercial teams to ensure timely delivery of aircraft components and services. Candidates need a business-related degree, practical experience, strong communication skills, and an interest in aerospace. The role is based full-time in Belfast.

Student placement software engineering role developing Magnite’s advertising platform. Responsibilities include software development, quality assurance, test automation, deployment, and solving complex technical problems with experienced engineering teams. The role provides mentorship and exposure to a broad technology stack, including Java, Rust, Scala, JavaScript, Python, C++, SQL, Cassandra, Druid, Hadoop, and Kafka.

Processes and reconciles daily purchase and sale transactions across equities, fixed income, and derivatives. Reviews trade exceptions, discrepancies, settlement issues, and posting errors; coordinates with internal teams, counterparties, and clients to resolve inquiries. Maintains regulatory and SLA compliance, performs supervisory oversight, provides operational metrics, and recommends process improvements.

Supports daily administration and execution of global Total Rewards and benefits programs. Responsibilities include employee inquiry support, benefits onboarding, vendor data transmissions, process documentation, communications, open enrollment assistance, invoice tracking, data checks, and compliance reporting. The role also supports identifying AI automation opportunities and requires attention to detail, confidentiality, adaptability, and proficiency with Google Workspace, Excel, or Workday.

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

Prepares journal entries, account reconciliations, financial reports, and financial statements for EMEA and APAC entities. Supports month-end and quarter-end close, statutory audits, internal controls, regulatory compliance, and Sarbanes-Oxley requirements. Identifies process improvements, validates financial data, and contributes to accurate management reporting and disclosure quality.

Design and develop C/C++ software for NVIDIA NIC and DPU platforms. Build monitoring, debugging, performance-analysis tools, libraries, and reference applications; optimize throughput, latency, scalability, and efficiency; and contribute to networking offload and acceleration capabilities. Collaborate across architecture, firmware, hardware, validation, and software teams throughout the product lifecycle. Lead complex feature development, architecture, debugging, and technical communication.

Leads application development and systems analysis initiatives, defining enhancements, resolving complex technology problems, and ensuring solutions align with enterprise architecture. Establishes coding, testing, debugging, and implementation standards; partners with management teams on integration and process improvements; assesses risks and compliance requirements; and coaches developers and analysts. The role requires advanced programming expertise, project leadership, strong communication, and the ability to manage shifting priorities.

Build and deploy production-grade AI applications for Citi’s global lending platform. Responsibilities include developing MCP tools and AI agent framework components, applying LLMs to business problems, integrating REST APIs and databases, writing Python and SQL, participating in Scrum practices, conducting code reviews, and contributing to technical standards. The role requires collaboration, autonomy, analytical thinking, and continuous learning in a hybrid work environment.

Placement students will support Davy Private Clients UK’s client service administration teams, helping manage the end-to-end client experience. Successful candidates must be adaptable, self-motivated, positive, and committed to delivering excellent client outcomes. Placements run from June 2027 through July 2028 in London or Belfast and are available only to students requiring a university degree placement in Finance, Law, or Business Management.

Develop and maintain high-performance Flutter mobile applications for digital agriculture. Integrate apps with backend services, cloud platforms, and on-farm management systems. Contribute to UI/UX, testing, deployment, bug fixing, and performance improvements while collaborating with product support and cross-functional partners. The role is hybrid in Belfast and includes occasional travel of less than 10%.