Top Tech Jobs & Startup Jobs in Belfast

Develop and enhance bespoke Python backend services, collaborate with clients on architecture and design, implement best-practice solutions, use appropriate tools/frameworks, write automated tests, manipulate complex datasets, share knowledge, and work in cross-functional teams to deliver clean, efficient software.

This role involves developing and maintaining kdb+ applications, collaborating with business users, and mentoring junior developers in a dynamic team environment.

The Data Engineer role involves implementing and optimizing SaaS data products, designing integration patterns, and providing technical leadership while collaborating with stakeholders.

As a Senior kdb+ Engineer, you will lead technical delivery, design kdb+ architectures, mentor developers, and drive innovation in high-performance systems.

As a Senior kdb+ Engineer, you'll lead client projects, design kdb+ architectures, mentor developers, and drive technical innovation in high-performance data systems.

Mid-level Python Engineer to learn and implement OneTick solutions, build Python applications and data pipelines, integrate with client platforms, deliver production-ready scalable solutions, troubleshoot production issues, collaborate with stakeholders, and develop domain expertise through training and hands-on delivery. Role is Belfast-based (hybrid) with potential travel to London and New York.

Develop Front Office Trading software focusing on low latency components. Engage in end-to-end development, from design to implementation, mainly using C++.

Consult as part of a team building high-performance, cloud-native data platforms for financial markets. Design and implement scalable data pipelines, data models and analytical workloads using Python, SQL and ClickHouse. Deploy and optimise ClickHouse in client environments, work with distributed architectures, container orchestration and automation tools, and collaborate directly with client engineering teams.

Design, build, and ship LLM-backed agentic systems that call tools, query client data, orchestrate specialist agents, and run against cloud or on-prem models. Scope proofs of concept into maintainable solutions, collaborate with client engineers, build reusable accelerators, and explain design decisions to technical and non-technical stakeholders.

Coordinate end-to-end client interview processes: schedule, chase, track and follow up with candidates, consultants and clients. Build and improve trackers/systems, flag risks, report pipeline status to leadership, and optimise workflows to prevent bottlenecks.