Top Tech Jobs & Startup Jobs in London

Design and build scalable AI-powered backend services and APIs in Golang for cloud-native, microservices-based platforms. Develop developer tools, ensure observability, CI/CD, and performance, solve distributed-systems challenges, and mentor engineering teams to deliver production-ready solutions.

Provide front-office production support for equities electronic trading applications, liaise with traders and developers, monitor systems (ITRS/Geneos), manage incidents, automate tasks with scripting, maintain support documentation, participate in releases, and ensure application resilience and risk assessment.

The Lead Pricing Engineer will manage a team, develop technical solutions for FX technology, write code, and engage with cross-functional teams. Responsibilities include enhancing system architecture and ensuring adherence to company best practices.

As a Full Stack Engineer, you will design and develop software solutions for trader efficiency, collaborate with stakeholders, ensure code quality, mentor junior developers, and manage full software lifecycle in a DevOps-focused environment.

The Senior Java Engineer will lead the technical architecture and development of the Equinox data platform, ensuring robust solutions, mentoring junior team members, and improving system efficiency and operational risk.

The role involves hands-on development in Java/Kotlin, contributing to an agile team, implementing CI/CD, collaborating with analysts, and maintaining documentation and support. Mentorship of juniors is also expected.

Develop, optimize, and maintain high-performance C#/.NET applications for equity derivatives technology risk. Design scalable systems, write comprehensive unit tests, profile and resolve performance bottlenecks, integrate messaging and web technologies, and collaborate with global teams on large, complex financial projects.

Build and operate production-grade, low-latency Go microservices and developer tools for enterprise-scale AI platforms. Design distributed systems, integrate secrets and identity, implement observability and CI/CD, mentor engineers, and deliver scalable APIs and infrastructure to support LLM-powered applications.

Lead design and deliver scalable XVA risk software, embed AI/ML and Generative AI into workflows, own projects end-to-end, drive architecture and Agile delivery, ensure regulatory compliance, and mentor engineering teams.

Lead global transformation of Citi's Non-Financial Regulatory Reporting by defining strategy, delivering an AI-enabled Regulatory Intelligence Platform, executing a unified Target Operating Model, driving automation and data quality, managing global teams, and ensuring robust governance, risk controls, and senior stakeholder engagement.