Top Tech Jobs & Startup Jobs in Belfast

Monitors and triages alerts, conducts open-source research, identifies online threats and exposed personal information, coordinates PII removal, documents findings, and prepares risk assessment reports. The role also involves social media monitoring, client updates, escalation of complex issues, and applying cybersecurity, privacy, and intelligence principles while working onsite with the Belfast intelligence team.

Leads and scales Rapid7’s technical support organization in Belfast. Responsibilities include managing support engineers and managers, developing career progression, driving process and tooling changes, improving operational metrics, resolving escalations, partnering with Engineering, Product, Customer Success, and Sales, and building consistent global support practices. The role emphasizes organizational change, customer outcomes, technical communication, accountability, and continuous improvement.

Supports the planning, development, and improvement of aerospace manufacturing processes, tools, technologies, and production systems. Responsibilities include continuous improvement, waste reduction, automation and digital manufacturing initiatives, industrialisation of new products, production problem-solving, data analysis, and cross-functional collaboration with engineering, quality, operations, supply chain, and production teams.

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.

Provide end-to-end production application support, including incident response, escalation management, monitoring, access and configuration changes, and client communication. Use AI tooling to investigate issues, build automations, and validate outputs. Collaborate with engineering on fixes, mentor teammates, and maintain runbooks and knowledge articles. The role requires strong skills in cloud platforms, APIs, databases, networking, operating systems, scripting, troubleshooting, and customer communication, with participation in an on-call rotation.

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 review management accounts, financial statements, investor reporting, and fund accounting activities. Manage client, auditor, and adviser relationships while ensuring compliance with accounting standards, regulations, and internal policies. Improve processes and controls, deliver accurate and timely reporting, and mentor junior colleagues. The role requires strong technical accounting expertise, professional qualification, clear communication, and attention to detail.

Conduct investor customer due diligence reviews across simplified, standard, and high-risk structures. Assess ownership charts, identify ultimate beneficial owners, verify documentation, support screening, maintain CDD records, and escalate risks. Collaborate with Compliance, Fund Administration, FATCA/CRS specialists, management, and directors to ensure AML/CFT and cross-border regulatory compliance. Provide team guidance and deputize for the CDD Manager when required.

Conduct penetration tests, vulnerability assessments, and red-team evaluations of AI applications, agents, APIs, and mobile or web systems. Design tests for prompt injection, retrieval poisoning, tool misuse, data extraction, and unsafe delegation. Use AI-powered tools to improve reconnaissance, validation, and vulnerability triage. Partner with development and security teams to embed assessments into delivery processes, communicate risk, and build security tooling and controls for enterprise AI systems.

Lead cross-functional Markets Operations transformation programs, managing scope, plans, deliverables, risks, controls, stakeholder communications, business cases, KPIs, testing, and operational readiness. Drive process standardization, regulatory change, automation, and risk reduction while partnering with global operations and technology teams. Facilitate senior working groups and ensure adherence to program management standards, governance, and regulatory requirements.

Lead development and enhancement of Citi's trade cost analytics platform. Design trade and cost analytics, reconciliation processes, and fee calculations. Partner with front/middle office, operations, and technology to gather requirements, translate business needs into SDLC deliverables, and deliver reporting and platform improvements to increase transparency and accuracy.

Processes global and international payrolls, supports new payroll implementations, maintains country-specific payroll knowledge and client documentation, and resolves complex payroll queries. The role also supports global partners, attends client meetings, assists junior team members, researches payroll solutions, and develops expertise in payroll systems while ensuring accuracy, compliance with departmental standards, and strong stakeholder communication.

Designs and delivers technical components for modern data solutions, including data ingestion, streaming, distributed data applications, data stores, and cloud data platforms. The role owns architecture, estimation, technical standards, production readiness, and solution design. It involves client communication, pre-sales contribution, timeline management, and coaching team members. Candidates need strong Java, Scala, or Python skills, experience with AWS, Azure, GCP, or Databricks, and expertise in data integration and contemporary data architectures.