Top Tech Jobs & Startup Jobs in London

Supports Citi’s EMEA Research product strategy by analyzing market, client, and franchise data; developing research presentations and pitch materials; coordinating thematic initiatives; managing communications and campaigns; improving content distribution and engagement; evaluating AI-enabled workflow tools; and supporting commercialization, client engagement, and strategic projects. The role partners with research, sales, trading, and senior management to strengthen market positioning and franchise growth.

Develops quantitative equity models, alpha signals, factor research, valuation frameworks, and investment insights across global markets. Conducts macroeconomic and equity research, publishes client-facing reports, presents findings to institutional investors, and supports the equity quantitative research platform. The role also requires regulatory compliance, maintaining applicable licenses, and potentially mentoring junior researchers.

The Global Head of Commodities Technology will lead the technology strategy and execution for commodities trading, overseeing robust technological solutions and developing a high-performing global team.

Leads architecture, development, and delivery of enterprise AI platform capabilities. Partners with business and technology stakeholders to translate business problems into technical solutions, roadmaps, requirements, and prioritized backlogs. Develops AI agents and services using Python or Java, Google ADK, MCP, databases, and CI/CD tooling. Provides technical leadership, mentorship, code and design reviews, testing, troubleshooting, risk management, and cross-team integration.

Lead design, build, and maintain scalable XVA risk software; embed AI/ML and generative tooling into workflows; own end-to-end project delivery; drive Agile practices; ensure regulatory compliance; mentor engineers and liaise with risk, operations, and technology stakeholders.

Develop and maintain quantitative equity models, alpha signals, factor research, and thematic investment insights for institutional investors. Produce client-facing research, conduct bespoke portfolio and market analyses, and enhance scalable research infrastructure using machine learning, agentic AI, automation, and advanced analytics. Translate complex quantitative findings into clear investment narratives and support client engagement.

Lead design and development of low-latency, event-sourced microservices for algorithmic trading. Hands-on coding (primarily Java or Rust), performance tuning, market-data handling (KDB), integration, mentoring, and architectural leadership to enable low-latency eTrading platforms and related simulation/replay utilities.

Hands-on SRE and observability engineer responsible for migrating legacy monitoring platforms to Google Cloud Observability and Grafana using OpenTelemetry. Develops telemetry collectors, Helm charts, Ansible playbooks, and Terraform solutions across Kubernetes, OpenShift, and VM environments. Partners with application teams on instrumentation, dashboards, alerts, SLOs, resiliency patterns, recovery testing, and chaos engineering. Ensures solutions meet regulatory and enterprise security requirements while improving reliability, scalability, and operational efficiency.

Lead Java Developer responsible for delivering Real-Time and On-Demand Risk enhancements, managing the full development lifecycle, collaborating with global teams, and driving operational improvements.

Lead Custody FX product strategy and transformation, partnering with Custody, TTS, Sales, Trading and Technology to define roadmaps, launch and manage FX products, negotiate partnerships, ensure regulatory compliance, and drive client-focused solutions and workflows across the product lifecycle.