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citi
14 Jun, 2026
Full Time
Senior Software Engineer (AVP) – Margin Technology
citi Belfast, UK
Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech. What We do / The Team: Markets Operations Technology is going through an exciting phase of transformation in margin and collateral domain. We are re‑engineering our technology estate to achieve world‑leading performance and resiliency, enabling new capabilities in advanced execution, global market...
Thales
14 Jun, 2026
Full Time
Senior Mechanical Engineer
Thales Belfast, UK
Location: Belfast, United Kingdom Thales is a global technology leader with more than 83,000 employees on five continents. With over 7,500 people in the UK, operating across defence, space, aerospace, and digital security, we help build a future we can all trust. Thales supports the security and stability of our nation by providing extraordinary technology to our customers, as well as delivering social value to the UK with our products and services. Senior Mechanical Engineer The Role We are seeking an experienced a Senior Mechanical Design Engineer who has a proven ability to apply engineering first principles and knowledge to new & existing products within the IAS portfolio. Working as part of a large Mechanical Design team, the Senior mechanical design engineer collaborates with local teams and multiple stakeholders to produce detailed Mechanical designs and support to a range of Weapon System, Missile and Platform products to satisfy customer...
citi
17 Jun, 2026
Full Time
Strategic Initiatives Program Manager – Vice President
citi Belfast, UK
Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech . As a Program Manager for Strategic Initiatives at the Vice President level, you will play a critical role in executing our firm-wide strategies, with a focus on enterprise resiliency and recoverability. You will be responsible for leading and driving key workstreams, ensuring the successful delivery of...
citi
14 Jun, 2026
Full Time
Experienced Backend Java Developers
citi Belfast, UK
Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech. Citi Belfast are hiring for Experienced Backend Java Developers with a skillset ranging from Assistant Vice President to Senior Vice President responsible for contributing to a variety of development activities. The overall objective of these roles is to assist/lead in applications systems development,...
citi
14 Jun, 2026
Full Time
Issuer Services Application Support - Assistant Vice President
citi Belfast, UK
Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech . We are seeking a high-performing Application Support Senior Analyst to provide L2 production support for critical applications within our global environment. The role focuses on incident resolution, system monitoring, and operational stability, working closely with Tech Leads, development teams, and...
citi
14 Jun, 2026
Full Time
FX OpsTech Application Support - Assistant Vice President
citi Belfast, UK
Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech .                 Our Production Management team provides critical business and technical support to the Services, Markets, Banking and Functions Client Group (SMBF) ; working collaboratively to ensure that our platforms and services operate for our clients, whenever they need them. We act as highly...
citi
14 Jun, 2026
Full Time
Senior Data Privacy Analyst
citi Belfast, UK
Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact. Job Overview Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech....
citi
14 Jun, 2026
Full Time
User Experience Lead Engineer
citi Belfast, UK
Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech. The User Experience Lead Analyst is a senior level role significantly contributing to the research, analysis, and design of digital products and systems. User Experience partners with Product and Technology colleagues to create innovative and intuitive digital products that deliver best-in-class user...
citi
14 Jun, 2026
Full Time
Senior Business Analyst - Assistant Vice President
citi Belfast, UK
Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech . The Senior Business Analyst is an intermediate-level position responsible for liaising between business users and technologists to exchange information in a concise, logical and understandable way in coordination with the Technology team. The overall objective of this role is to contribute to continuous...
citi
14 Jun, 2026
Full Time
Senior Java Developer (Smart Order Routing (SOR)) - Equities Electronic Trading
citi Belfast, UK
Senior Java Developer (Smart Order Router (SOR)) - Equities Electronic Trading Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech.  What We do / The Team  Equities Technology at Citi is undertaking a bold, multi‑year transformation to build a best‑in‑class global platform across execution, prime, clearing and cross‑product margining. We are...
citi
14 Jun, 2026
Full Time
Finance Desk Applications Support - Technical Lead - Vice President
citi Belfast, UK
Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech. The Finance Desk (FD) support group provides technical and business support for Citi’s global Finance Desk.  Support teams are located in multiple regions; Belfast, Sydney  India and Mississauga. The ‘Finance Desk Application Suite’ application hosts web based components and Informational business...
citi
14 Jun, 2026
Full Time
Custody FX Production Support - Assistant Vice President
citi Belfast, UK
Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech . Are you looking for a career move that will put you at the heart of a global financial institution? Then bring your skills in analysis, problem solving, communications and engineering skills to the Citi’s Execution Services Production Support team. By Joining Citi, you will become part of a global...
Thales
14 Jun, 2026
Full Time
Electronics Support Engineer
Thales Belfast, UK
Location: Belfast, United Kingdom Thales is a global technology leader with more than 83,000 employees on five continents. With over 7,500 people in the UK, operating across defence, space, aerospace, and digital security, we help build a future we can all trust. Thales supports the security and stability of our nation by providing extraordinary technology to our customers, as well as delivering social value to the UK with our products and services. Electronics Support Engineer Belfast - Hybrid Who We Are Thales Integrated Airspace-protection Systems (IAS) UK designs and manufactures a range of cutting-edge technologies ranging from air surveillance and mission planning systems to missiles. The company specialises in lightweight missiles and the integration of weapon systems into various platforms along with the systems to manage and exploit critical mission planning and air surveillance data. Belfast is also home to the Thales’s global Space Electric Propulsion...
Thales
14 Jun, 2026
Full Time
Principal Mechanical Engineer
Thales Belfast, UK
Location: Belfast, United Kingdom Thales is a global technology leader with more than 83,000 employees on five continents. With over 7,500 people in the UK, operating across defence, space, aerospace, and digital security, we help build a future we can all trust. Thales supports the security and stability of our nation by providing extraordinary technology to our customers, as well as delivering social value to the UK with our products and services. The Role We are seeking an experienced a Senior Mechanical Design Engineer who has a proven ability to apply engineering first principles and knowledge to new & existing products within the IAS portfolio. Working as part of a large Mechanical Design team, the Senior Mechanical Design Engineer collaborates with local teams and multiple stakeholders to produce detailed Mechanical designs and support to a range of Weapon System, Missile and Platform products to satisfy customer requirements.  As we enter a period of...
HA
13 Jun, 2026
Permanent
Site Engineer (Residential - Belfast)
HAYS Belfast, UK
Site Engineer - Major Mixed Use Urban Development - Belfast Your new company One of Northern Ireland's leading house building contractors is seeking an experienced Site Engineer to join their NHBC award winning team based on site in Belfast. With an operational history of over 50 years, the contractor has grown & developed their business from a small, family-run firm to a consistent leader in the residential sector, earning a reputation for repeatedly delivering successful, high-end & highly sought-after residential developments in attractive locations. Your new role You will join the team on a major mixed-use residential development valued over £95m comprising of over 650 social and affordable homes alongside a comprehensive network of facilities including communal amenities, convenient services, retail establishments and green areas. Based in Belfast, the project has an extensive programme of works across multiple phases. What you'll need to succeed The...
Capita
29 May, 2026
Full Time
Network Operations Centre Engineer
Capita Belfast, UK
We are seeking a Network Operations Centre (NOC) Engineer to join our 24/7 Technology Operations Command Centre operation based at Hill View House, Newtownabbey. This is a hands-on, shift-based role operating in a fast-paced, high-visibility environment, responsible for the monitoring, diagnosis, and resolution of network incidents across a diverse, mission-critical customer estate. Working Pattern 24/7 shift-based role (days and nights) Typical pattern: 4 on / 4 off Day shifts: 07:00–19:00 Night shifts: 19:00–07:00 Job title: Network Operations Centre Engineer Job Description: What we are looking for: Practical experience in troubleshooting across routing and switching technologies. Experience working as a Network Engineer in an enterprise or service provider environment is desirable Ideally an understanding of networking fundamentals including TCP/IP, DNS, LAN/WAN, VLANs, and routing protocols (e.g. BGP, OSPF). Desirable to have experience supporting...
citi
17 Jun, 2026
Full Time
Java Technical Lead, Vice President
citi Belfast, UK
We are looking for a Java Technical Lead with proven experience building robust, high-performance, large scale Capital Markets applications. Team Background The Derivatives Credit Risk Technology Team is responsible for delivering Counterparty Credit Risk Management software solutions to Citi’s Risk organization which manages Citi’s exposure to financial institutions, governments and corporates that trade with Citi. The team builds and maintains software used to compute metrics that help mitigate Citi’s exposure to counterparty default. The solutions include consumption of trades, collateral, market data, counterparty and security reference data from over 50 sources, and the computation of optimal margin allocation for portfolios and trades, haircut for security and cash collateral, trade and collateral liquidity, collateral concentration levels and wrong way risk, amongst others that feed into the computation of Pre-Settlement Risk (PSE), Settlement Risk, Exposure at Default...
citi
16 Jun, 2026
Full Time
Engineering Lead - SVP
citi Belfast, UK
The Department Developer Enablement is a function of the CTO organisation. Our mission is to make it easy and enjoyable for software engineering teams to go from a business idea to delivering an innovative product solution. The main goals are to improve and upgrade our tools, streamline our processes, automate and strengthen our controls, and help development teams adopt modern working methods. The Role We're seeking a technically versatile GenAI Full-stack Engineering Lead to join our department. You'll provide technical leadership and strategic direction, shaping the future of our software engineering efforts and promoting cultural change across the organisation. This role demands a strong understanding of software engineering best practices and the ability to instill them within a team, fostering a positive and collaborative culture. As the Engineering Lead, you’ll need to demonstrate a deep understanding of user needs and contributing to the overall product vision. Our...
citi
14 Jun, 2026
Full Time
Prime Finance Applications Support - Vice President
citi Belfast, UK
Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech .                                                                                               The Prime Finance support group provides technical and business support for Citi’s Prime Finance Application stack, encompassing Prime brokerage and Securities Lending business streams.  The applications are...
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