Top Tech Jobs & Startup Jobs in Belfast

Own the product strategy and roadmap for Apex’s API gateway and observability platforms. Define capabilities such as traffic management, rate limiting, logging, metrics, traces, alerting, dashboards, and reporting. Partner with engineering teams to prioritize work, manage technical and commercial tradeoffs, define measurable outcomes, write requirements and strategy documents, maintain the Jira backlog, and communicate progress to technical and executive stakeholders.

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.

Lead complex, strategically important bids from end to end, developing compliant and competitive proposals while coordinating multidisciplinary teams. Shape bid and capture strategies, manage budgets, pricing, risks, governance, and stakeholder engagement, and support customer presentations and negotiations. The role focuses on business growth across UK and international defence opportunities and requires Security Clearance before employment begins.

Owns and prioritizes the product backlog for secure hardware engineering environments. Defines requirements, acceptance criteria, and feature priorities; validates releases; gathers user feedback; and leads application evolution, migration, consolidation, and legacy-tool retirement. Acts as technical authority and architect while coordinating hardware engineers, product owners, architects, delivery teams, and leadership. The role requires practical hardware engineering experience and knowledge of engineering development environments, with responsibility for aligning tools to broader Thales roadmaps.

Lead the modernization of engineering tooling environments by migrating legacy platforms to Azure-based cloud infrastructure. Deploy and support CI/CD, artifact management, code quality, and licensing tools; develop Infrastructure as Code and automation; maintain existing environments; and provision infrastructure resources. Implement monitoring, backups, archiving, and logging best practices while supporting engineering users. Collaborate with product and delivery stakeholders, coach junior team members, and champion reliable, secure DevOps practices.

Supports Citi’s commodities legal team by reviewing, drafting, and negotiating master agreements and related documentation for financial and physical commodities, emissions trading, and amendments. Engages institutional clients, counsel, business partners, Risk, and internal legal teams; advises on contractual risks and regulatory requirements; maintains negotiation records; and contributes to regulatory implementation, process improvements, and product initiatives.

Design, develop, and deploy real-time market data and analytics systems for equities trading. Lead KDB+/q development, deliver low-latency solutions, optimize performance, establish coding and testing standards, and collaborate with traders, quants, and global technology teams. Responsibilities include application design, implementation, debugging, production support, risk management, user consultation, and technical delivery with limited supervision.

Audit placement students support statutory audits for varied clients by reviewing financial records, testing data accuracy, documenting findings, preparing financial statements, attending stocktakes, and contributing to audit reports. They work collaboratively with client finance teams and internal colleagues while managing deadlines and building skills toward an accountancy qualification.

Technical leader responsible for test strategy, design and implementation of automated, manual, and non-functional tests. Ensures test coverage across application layers, configures CI tooling, mentors and manages a small team, liaises with customers and stakeholders, and drives quality throughout agile delivery.

Supports client and fund payment processing across multiple jurisdictions. Responsibilities include preparing payment runs, verifying suppliers, maintaining payment records, preparing documentation, completing post-payment checks, responding to payment queries, supporting reporting, and identifying process improvements. The role offers entry-level development in payment processing, cash management, fund administration, and financial services.

Design, build, maintain, and debug services within a large-scale microservices architecture. Resolve complex distributed-system and production issues, participate in on-call rotations, communicate technical decisions, navigate ambiguity, and improve engineering practices through innovation, infrastructure migrations, technical-debt reduction, and AI-assisted development.