Top Tech Jobs & Startup Jobs in London

Leads development of backend risk technology systems supporting Rates and FX trading. Owns software components, serves as a subject matter expert, manages experienced developers, designs and maintains applications, coordinates feature delivery, advises on timelines, collaborates with front-office stakeholders, and reduces technical debt. Requires strong C#/.NET development, financial IT, messaging, Linux, leadership, people management, and trade lifecycle knowledge.

Lead product strategy, roadmap, discovery, delivery, governance, release decisions, and adoption for greenfield Generative AI products across Markets Technology. Partner with engineering, traders, business stakeholders, risk, controls, and senior leadership to prioritize investments, define product outcomes, validate user needs, and drive measurable adoption and business value. The role requires strong product judgment, stakeholder leadership, agile delivery experience, and familiarity with LLM-based applications in regulated financial environments.

Support Banking deal teams by reviewing potential engagements for transactional conflicts and reputation risk, driving business selection decisions, coordinating with senior management and control functions, performing qualitative analysis, advising on risk mitigation, verifying documentation, tracking metrics, training bankers, and helping improve conflict clearance systems and policy.

Lead centralized business selection and conflict decisions for Banking & International; analyze transactional and reputational risks, liaise with deal teams and control functions, track indicators, train bankers, and support policy and system enhancements.

Build robust software solutions for Citi’s global margin and collateral technology platform. Develop RESTful APIs and applications using Java, React, and/or Python; apply TDD, clean code, data structures, algorithms, and SQL. Collaborate with product teams and users, manage multiple priorities, and contribute to engineering culture. Experience with financial services, AWS, Kafka, Kubernetes, and NoSQL technologies is beneficial.

The role involves developing and maintaining Python micro-services for a proprietary trading platform, collaborating with traders and global teams, and integrating with analytics libraries.

Leads Citi’s global Trade and Working Capital Technology organization of more than 800 engineers across 90+ countries. Responsibilities include setting technology strategy and architecture, modernizing legacy systems, driving digitization and transformation, overseeing delivery and governance, improving client experience, meeting regulatory commitments, managing investment and operating models, and developing organizational talent and performance.

Lead front-end development for equity derivatives trading applications used for global marking and pricing. Design, build, test, and enhance production-quality React software; integrate APIs and microservices; maintain observability and CI/CD practices; resolve complex technology and business problems; and mentor developers while collaborating with trading, product, and technology teams.

Design, build, and operate AI-native production systems and agentic workflows at scale. Integrate LLMs and observability to automate incident detection and remediation, maintain CI/CD and IaC pipelines, champion engineering best practices, mentor teams, and ensure compliance within a regulated financial environment.

Leads enterprise-wide data governance strategy and adjustment remediation at a global financial institution. Owns regulatory mandates, governance forums, automation assessments, variance analysis, AI-driven root cause analysis, and engagement with regulators and auditors. Directs organizational change, stakeholder alignment, team leadership, hiring, performance management, compensation, and budget oversight.