Top Tech Jobs & Startup Jobs in London

Manage FX options trading books across vanilla and exotic products, including pricing, trade execution, revenue generation, client demand forecasting, and risk management. Collaborate with Sales, Research, Risk, Legal, Compliance, Audit, and Finance to develop the trading franchise and maintain strong governance, controls, and regulatory compliance. The role requires analytical expertise, market knowledge, stakeholder management, licensing, and familiarity with Bloomberg and trading systems.

Develop and maintain Python applications calculating counterparty credit risk and Basel capital metrics. Enhance CI/CD, testing, release management, performance optimization, profiling, documentation, and cloud workflows. Collaborate with Quant, Risk, Front Office Technology, and development teams to integrate model updates and technologies. Analyze complex application issues and serve as a subject matter expert for stakeholders.

Designs, develops, and operates reliable production systems incorporating agentic AI, LLMs, prompt engineering, intelligent observability, and automated remediation. Builds production-grade software, CI/CD pipelines, infrastructure-as-code, and GitOps workflows at scale. Collaborates across engineering teams in a regulated financial environment, ensures compliance, mentors engineers, manages stakeholders, and drives continuous delivery, operational excellence, and AI engineering standards.

Build and deploy production-grade agentic AI systems embedded within business squads. Develop agent reasoning logic, MCP servers, API connectors, RAG pipelines, structured-output validation, resilience mechanisms, safety guardrails, and automated evaluations. Collaborate directly with business users to prototype solutions, analyze model failures, improve workflows, and deliver iterative enhancements. Participate in agile delivery and code reviews while coaching junior engineers and ensuring compliance, security, and operational quality.

Leads Citi’s government affairs and public policy engagement in Ireland and Northern Ireland, while serving as the Markets business policy partner. Develops political engagement and advocacy strategies, builds relationships with policymakers, represents Citi with government and external stakeholders, advises leaders on legislative and geopolitical risks, and prepares executive briefings. Requires deep knowledge of Irish, UK, and EU political environments, financial-services policy expertise, senior stakeholder relationships, and extensive government affairs experience.

Leads and scales Forward Deployed Engineering squads embedded within business units. Oversees AI agent architecture, rapid prototyping, enterprise integrations, delivery roadmaps, safety standards, evaluation gates, and production deployment. Partners with executives to identify workflow automation opportunities and transforms custom solutions into reusable platform capabilities. Builds and develops a 20+ person engineering organization while ensuring regulatory compliance, architectural rigor, secure coding, and high-quality delivery across multiple concurrent initiatives.

Leads the design, development, deployment, and scaling of production agentic AI systems for enterprise banking use cases. Architects multi-agent workflows, RAG pipelines, secure integrations, HITL interfaces, evaluation frameworks, and guardrails. Partners with business stakeholders to prototype solutions, translates ambiguous workflows into technical architectures, mentors engineers, establishes coding standards, and contributes reusable components to enterprise AI platforms.

Lead the architecture and development of a global quantitative pricing platform operating across hybrid-cloud and high-performance computing grids. Build distributed job orchestration, scheduling, resiliency, monitoring, anomaly detection, and large-scale data logistics systems. Partner with quantitative analysts to deploy and optimize C++ and Python pricing models for risk P&L calculations, derivatives valuation, and XVA workloads.

Architect and build massive-scale risk analytics platforms processing billions of trade-level calculations. Develop Spark data pipelines, high-performance OLAP models, intelligent APIs, NLP-enabled data interfaces, and interactive dashboards for rapid analytics and drill-down. Partner with front-office, quantitative, and risk stakeholders to deliver solutions supporting market-risk calculations, including VaR, FRTB, and stress testing.

Leads Oracle Financials ERP configuration and application development for Citi’s Strategic Ledger transformation. Drives functional and technical requirements, designs and implements Oracle configurations across global entities, manages documentation and code reviews, supports data conversion and implementation, and coordinates with finance, technology, testing, and systems integration partners. The role requires expertise in General Ledger, Accounting Hub, ledger concepts, stakeholder management, and delivery across distributed teams.