Top Tech Jobs & Startup Jobs in London

Lead backend engineering work using JVM languages to design scalable, reliable, secure, cloud-native, multi-cloud solutions. Drive domain modeling, performance optimization, zero-downtime releases, incident resolution, and operational excellence. Champion adoption and governance of enterprise-authorized AI-assisted engineering practices and SDLC toolchain automation while coaching teams on responsible, secure AI use.

Develop and deliver native iOS features for the Nutmeg app using Agile practices. Own tasks end-to-end, write tests, participate in releases and code reviews, troubleshoot defects, contribute to technical initiatives, and collaborate across product, operations, and engineering to improve the codebase and tooling.

Support global fixed income index research by analyzing large datasets, building quantitative models, managing client projects, maintaining index operations, evaluating performance and market trends, and producing visualizations and reports to inform strategic product decisions.

Prepare and validate daily P&L and risk reporting for EMEA currencies and emerging markets. Deliver commentary to senior management, investigate P&L breaks, design and implement controls and process improvements, and coordinate with front, middle, and back office to resolve reporting and control issues.

Support delivery of martech initiatives across markets: define feature details, create user stories, manage Agile ceremonies and UAT, monitor KPIs, drive adoption, document releases, and partner with controls, engineering, data, and marketing to ensure regulated-compliant solutions.

Hands-on lead engineer responsible for designing, developing, reviewing, and shipping secure, production-ready payment systems. Drive architecture, operational stability, automation, vendor evaluations, and mentor engineers while contributing to technical direction and team culture.

Senior front-end engineer on an agile Equities Sales & Trading team delivering secure, scalable cloud-native applications. Provides technical leadership, writes and reviews production code, drives design decisions, optimizes UI performance for high-frequency data, and advocates firmwide engineering practices and tools.

Lead development of cloud-native Python applications for global commodities trading desks. Design, build, test, and operate resilient, secure production systems; drive automation and CI/CD; evaluate vendor solutions; and mentor engineering communities of practice.

Design, build, and maintain large-scale, secure data engineering solutions. Lead architecture, deliver production code, drive automation and operational stability, mentor teams, and evaluate vendor/technology choices to advance risk technology platforms.

Lead applied AI/ML efforts to design, build, deploy, and maintain production ML services (NLP/CV focus). Collaborate with engineering, cloud, and SRE teams, research models, ensure MLOps best practices, and document processes for regulatory compliance.