Top Tech Jobs & Startup Jobs in London

Join Maven Securities as a graduate infrastructure engineer in London, specializing in Linux or networking. You will support trading-critical systems, tune operating systems and networks for low latency, automate infrastructure with Ansible, Python, and Bash, participate in incident response and on-call rotations, and build observability using Prometheus and Grafana. The program combines structured training with hands-on work in a fast-paced proprietary trading environment.

Participate in a structured software development internship with two weeks of technical training followed by a seven-week project embedded in Maven engineering teams. Collaborate with developers and traders on real-world technology problems, learn C++, C#, Python, TypeScript, React, and emerging AI technologies, use in-house tools, and receive ongoing mentoring and feedback.

The role involves researching, developing, and implementing systematic trading strategies while managing portfolio risk. Candidates should have a quantitative background and strong coding skills.

Maven seeks a Senior Linux Engineer to manage Linux server environments, implement automation, and ensure system stability across multiple global locations.

The Senior Quantitative Researcher will lead projects impacting trading performance, develop trading models, and collaborate with researchers and traders.

The candidate will manage a European SMID cap equities portfolio, focusing on risk management, original idea generation, and maintaining performance in diverse market conditions.

Own balance sheet integrity and lead month-end close for a portfolio of group entities. Prepare and review journals, reconciliations, and statutory consolidated accounts; support audits, regulatory and tax reporting. Improve controls, drive automation and AI-enabled reporting, and partner cross-functionally to enhance processes.

Own global employment law for Maven Securities, including employee relations, employment litigation, policies, contracts, restrictive covenants, bonus disputes, and contentious exits. Advise senior executives and HR, coordinate local counsel across jurisdictions, manage external legal spend, improve legal processes, and introduce AI and legal technology into employment workflows. The role requires independent judgment, strong contentious experience, and practical commercial advice across the group.

The Platform Engineer will manage trading and research environments, focusing on reliability and efficiency while collaborating with cross-functional teams to improve operational practices.

Develop and maintain ultra-low-latency C++ systems for options market making. Build exchange connectivity, optimize execution algorithms and performance, collaborate with traders, quant researchers and other engineering teams, and deliver production-quality software with automated testing and peer review.