Location: BELFAST ARNOTT HOUSE, 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. Title: Senior Cybersecurity Engineer, Enterprise Services Base location: Belfast, Northern Ireland (Hybrid) Special Position Requirements Operational Schedule : Participation in a rotating on-call roster, requiring occasional paid weekend and holiday shifts (averaging once per month). Thales Thales people architect identity management and data protection solutions at the heart of digital security. Business and governments rely on us to bring trust to the billions of digital interactions they have...

Excited to grow your career? We value our talented employees, and whenever possible strive to help one of our associates grow professionally before recruiting new talent to our open positions. If you think the open position you see is right for you, we encourage you to apply! Our people make all the difference in our success. Overview of Citi Citi Market Operations is currently at a pivotal point in its evolution and journey to implement a target operating model. We take pride and are passionate about our People and our culture.  We are invested in people and their development. We are transforming and simplifying our operating model creating an exciting environment which encourages diversity of thought and inclusion.  We are a dynamic, global and diverse Organisation, with a presence in over 60 Countries; covering all post execution Operations teams including product aligned Middle Office groups, Settlements, Margin, Asset Servicing, Listed Derivative &...

Citi Belfast is one of the largest employers in Northern Ireland with a diverse and talented team of over 4000 people from over 68 different nationalities across our four Belfast offices. We are the only global investment bank operating in Northern Ireland. Every day, our local experts interact with global teams in over 100 countries developing and supporting next-generation technology solutions for the enterprise and delivering critical services to the bank and its customers, to make sure we are a stronger and safer organization for our clients. You will have a truly global reach, which will provide you with new experiences and development opportunities right here in Belfast’s iconic Titanic Quarter. The successful candidate will lead key strategic initiatives in support of enterprise strategy and resilience, ensuring Citi's critical business services maintain operational resilience in alignment with regulatory requirements and business objectives. Driving strategic vision,...

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...

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...

Are you looking for a career move that will put you at the heart of a global financial institution — and at the forefront of the AI revolution in financial services? Then bring your skills in   AI-driven automation, intelligent process design, and data science   to Citi's Markets Shared Controls Group (SCG).   By joining Citi, you will become part of a global   organisation   whose mission is to serve as a trusted partner to our clients by responsibly providing financial services that enable growth and economic progress.     T eam/Role Overview   The Shared Controls Group (SCG) exists to support the Markets business globally through the efficient execution of controls and processes that are common across region, product, and risk category. This role sits at the intersection of   artificial intelligence and operational excellence   — you will   be responsible for   identifying , designing, and delivering...

By Joining Citi, you will become part of a global organisation whose mission is to serve as a trusted partner to our clients by responsibly providing financial services that enable growth and economic progress. Team/Role Overview The Financial Crimes Risk Senior Manager is responsible for supporting the ongoing implementation and enhancement of the EMEA Services Financial Crime governance framework within the 1st Line of defence. This activity will be performed through active participation in regional and franchise-wide Financial Crimes risk mitigation programs, helping to shape the strategy for managing the Financial Crimes risks in partnership with the respective Global team, and the overall regional In-Business Risk (IBR) strategy. The incumbent will promote effective Financial Crimes risk management solutions by working in partnership with all Services Product teams and 2nd/3rd line of defence partners, including Compliance, Legal & Operations, and Technology teams...

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...

The Securities Settlements team is a critical component of our global Operations division, responsible for the timely and accurate settlement of securities transactions across all asset classes. Operating in a dynamic and fast-paced environment, the team acts as the central hub for post-trade processing, ensuring that all obligations arising from our trading activities are met efficiently and without operational risk. Supporting this, is the Securities Settlements Technology team, responsible for building, maintaining, and transforming the platforms that ensure the timely and accurate settlement of securities transactions across all asset classes. The team is currently engaged in a multi-year strategic program to modernize our settlement platforms, enhance automation, and adapt to evolving market regulations, such as the transition to T+1 settlement cycles. We partner directly with Front Office trading desks, Operations, Finance, Custodians, and Clearing Houses to deliver...

Role Overview: Join the Futures & Derivatives Clearing (FDC) and Equities Operations Program Execution Team, a vital component of the Markets Ops Transformation organization. This hybrid Business Analyst / Project Manager role is critical to driving strategic transformation and delivering Target Operating Models for FDC and Equities Operations within a dynamic, fast-paced environment. Our global organization spans over 60 countries, supporting a comprehensive range of Capital Markets products, including Fixed Income (FX, Rates, Credit, Muni, Cash, and Derivatives), where Citi is a dominant player, and Equities (Cash, Derivatives, Prime Brokerage, Futures, Listed Derivatives, FXPB), an area of significant growth. Job Purpose: The Markets Process Engineering team is chartered with designing and delivering a multi-year transformation roadmap for Operations and broader bank stakeholders. This transformation is driven by strategic initiatives, investment change execution,...

This is a senior role in Business Execution within the Equities Technology organization, acting as a strategic partner to Technology leadership to drive execution, financial discipline, and organizational effectiveness. This role combines COO, Chief of Staff, and business management responsibilities, ensuring the organization operates with clarity, efficiency, and strong governance. Equities Technology at Citi is in a period of significant growth and undertaking a multi-year transformation to build a best-in-class global platform across execution, prime, clearing, and cross-product margining. We are re-engineering our technology estate to deliver world-leading performance, resiliency, and scalability, while enabling advanced execution capabilities, enhanced global market connectivity, and modernized post-trade, clearing, and margin processes. Business Execution is central to the success of this transformation. This role ensures delivery is executed with discipline,...

Organization Overview: Citi Markets Operations is currently at a pivotal point in its evolution and journey to implement a target operating model. We take pride and are passionate about our People and our culture.  We are invested in our People and their development. We are transforming and simplifying our operating model, creating an exciting environment which encourages diversity of thought and inclusion.  We are a dynamic, global, and diverse Organisation, with a presence in over 60 Countries; covering all front post execution Operations teams including product aligned Middle Office groups, Settlements, Margin, Asset Servicing, Listed Derivative & Commodities Operations. We support an extensive range of Capital Markets products and services including Fixed Income (FX, Rates, Credit, Muni, Cash and Derivatives) where Citi is consistently a dominant top 3 player in the market, Equity (Cash, Derivatives, Prime Brokerage, Futures, Listed Derivs, FXPB) where Citi has a...

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...

Role Overview Citi's Markets Operations group provides a full suite of strategic advisory and financing products to multinational and local corporations, financial and public sector institutions, governments, privately held businesses, and many of the world's most successful and influential individuals and families in more than 160 countries and jurisdictions. We provide world-class financial products and services as diverse as the needs of the thousands of corporations, institutions, governments and investors we serve. With trading floors in more than 80 countries, we work to enrich the relationships, products and technology that define our market-making presence. The breadth, depth and strength of our sales and trading, distribution and research capabilities span a broad range of asset classes, currencies, sectors and products — including equities, commodities, credit, futures, foreign exchange (FX), emerging markets, G10 rates, municipals, prime finance and securitized...

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...

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, application development, problem solving and communication to Source to Pay Solutions Technology group. By Joining Citi, you will become part of a global organisation whose mission is to serve as a trusted partner to our clients by responsibly providing financial services that enable growth and economic progress. Team/Role Overview Source to Pay Solutions Technology group is part of COO (Citi Operating Office) Technology organization supporting Citi Operating Office business function and its enterprise‑wide transformation agenda to achieve improvements across risk management, controls, data governance, AI adoption, and process re‑engineering by delivering scalable, secure, and modern technology solutions. Based in Belfast, the team partners closely with businesses and technology stakeholders to build, manage, and modernize multiple Source...

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, application development, problem solving and communication to the Source to Pay Solutions Technology group. By Joining Citi, you will become part of a global organisation whose mission is to serve as a trusted partner to our clients by responsibly providing financial services that enable growth Team/Role Overview Source to Pay Solutions Technology group is part of COO (Citi Operating Office) Technology organization supporting Citi Operating Office business function and its enterprise‑wide transformation agenda to achieve improvements across risk management, controls, data governance, AI adoption, and process re‑engineering by delivering scalable, secure, and modern technology solutions. Based in Belfast, the team partners closely with businesses and technology stakeholders to build, manage, and modernize multiple Source to Pay...

The Gen AI Platform Onboarding Lead is a senior level position responsible for establishing and implementing strategic initiatives on the GenAI book of Work for Services, and programs in coordination with the Product team. Responsibilities: This role involves streamlining  the onboarding and configuration process for integrating applications onto the newly developed Intelligent Document Processing platform Increase the accuracy of the platform for all onboarding workflows  Good understanding of RAG based implementation and commercial Large Language Models  Manage Book of Work deliverables and ensure goals are met. Manage risk to the goals with timely mitigation. Manage change in priorities and pivot team quickly to deliver on change in priorities. Influence and negotiate with senior leaders and communicate with external parties. Appropriately assess risk when business decisions are made, demonstrating consideration for the firm's...

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...

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...