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.

Develop quantitative pricing, valuation, counterparty risk, margin, stress-testing, and portfolio analytics models for Wealth Management. Build scalable production-grade C++ and Python pricing and risk solutions, integrate trade, market, and collateral data, and create funding- and capital-aware pricing. Translate analytics into business and risk insights while partnering with Front Office, Risk, Technology, and Operations on strategic delivery.

Build scalable capital, pricing, risk, forecasting, and expected credit loss analytics for Front Office, Finance, Risk, and banking stakeholders. Develop risk-adjusted pricing for deposits and loans, support regulatory and business planning, establish capital methodologies, and provide quantitative insights for profitability, resource allocation, and senior management decisions. The role requires advanced C++ and Python, quantitative modeling, financial risk expertise, and strong cross-functional communication.

Develop and own core C++ and Python platform functionality for Kannon, building shared valuation, risk, P&L and controls infrastructure. Optimize performance, strengthen C++/Python interfaces, collaborate with quants and trading stakeholders, and support CI/CD, automated testing and reproducible builds across Linux.

Execute and optimize B2B demand-generation campaigns across Google Ads, LinkedIn Ads, and other acquisition channels. Manage targeting, keyword research, A/B testing, budgets, tracking, and performance reporting. Analyze CAC, CTR, conversion funnels, lead quality, and pipeline ROI to improve results. Collaborate with content, design, product marketing, sales operations, and data teams to support messaging, landing pages, and revenue growth.

Own full-cycle recruiting across functions, seniority levels, and geographies. Build passive-talent pipelines, advise hiring managers and senior leaders, deliver high-touch candidate experiences, and support global hiring priorities. Improve recruiting processes, sourcing strategies, tooling, reporting, and talent networks while operating with urgency in a fast-changing cybersecurity technology company.

Develop sourcing strategies and talent pipelines across R&D and go-to-market roles. Use AI, automation, market data, and competitive intelligence to identify candidates, improve outreach, and track pipeline performance. Partner with recruiters and hiring managers, support employer branding, create strong candidate experiences, and manage multiple searches across regions and stakeholders.

Lead and manage a geographically distributed HR team to deliver end-to-end HR services, coach managers, resolve complex employee relations issues, partner with HR Advisors and COEs, drive HR strategy and policy, ensure regulatory compliance, and support organizational performance and capability building across assigned client groups.

Provide technical and business support for mission-critical FX trading applications across global markets. Responsibilities include monitoring systems, supporting trade lifecycle processes, troubleshooting issues, coordinating with technology teams and vendors, maintaining documentation, supporting releases, performing post-release checks, and participating in stability and efficiency projects. The role requires SQL, UNIX, Python, application support, cloud and DevOps knowledge, plus rotational weekend coverage and disaster recovery participation.

Develop and enhance the ASPEN asset servicing application using Java, Angular, and Oracle. Analyze, test, debug, and secure applications, work in an agile global team, identify system improvements, and implement solutions under deadlines.

Owns revenue operations insight across sales and go-to-market teams. The role delivers reporting, forecasting, pipeline and backlog analysis, CRM data governance, KPI improvement, dashboard development, process automation, and strategic recommendations. It partners with Sales, Pre-sales, Marketing, Alliances, and Operations to improve commercial performance, data quality, operational efficiency, and evidence-based decision-making while promoting AI-enabled productivity.

Design intuitive, accessible UX for enterprise Workday products and AI-powered features. Create wireframes, prototypes, mock-ups, journey maps, and process maps; conduct user research and usability testing; analyze feedback and usage data; and collaborate with product, engineering, and data science teams to deliver transparent, user-centered experiences.

Embed within customer environments to configure and optimise Workday EDM/HCM, resolve integration and configuration issues, enable client administrators, track adoption and maturity, provide technical health summaries, and feed product insight back to Kainos.

Produces and maintains electrical CAD drawings, including schematics, wiring diagrams, panel layouts, and system integration documentation. Supports power and controls engineers working on UPS, switchgear, control panels, and automation systems. Manages revisions, documentation packages, project records, and as-built updates while ensuring compliance with standards. Collaborates with multidisciplinary teams and supports manufacturing, installation, and commissioning activities.