Top Tech Jobs & Startup Jobs in London

Develop and support enterprise quantitative engineering platforms for energy trading risk, positions, and valuations. Build scalable backend services, APIs, desktop tools, and cloud-based solutions; integrate quantitative models; improve architecture, performance, testing, and deployment processes; and provide production support. Partner closely with traders, front-office users, quantitative developers, and analytics teams to gather requirements, resolve complex issues, and deliver reliable technology solutions in a fast-paced trading environment.

Supports global total reward strategy, annual compensation cycles, salary benchmarking, benefits analysis, pay equity, workforce planning, and HR reporting. Uses Workday, Excel, SAP, Power BI, and other analytics tools to produce insights, improve data accuracy, automate processes, and support reward and HR projects. Advises HR teams and business stakeholders while contributing to policy development, process improvement, and employee experience initiatives.

Lead the Platform Operations function responsible for reliable, secure, resilient, and cost-effective infrastructure across cloud, private cloud, and on-premise environments. Manage compute, storage, networking, operating systems, backup, disaster recovery, cybersecurity controls, vendors, budgets, and major incidents. Drive infrastructure automation, Infrastructure as Code, lifecycle management, operational transformation, resilience testing, and continuous improvement while developing a high-performing technical operations team.

Administer and optimize Workday and related HR systems, including configuration, security, business processes, reporting, data governance, testing, and releases. Support reward, payroll, compensation, benefits, integrations, and HR transformation projects. Translate HR requirements into system solutions, improve processes, coordinate UAT, manage change, train stakeholders, and act as the liaison between HR, Technology, vendors, and implementation partners.

Senior developer role focused on building and maintaining data-oriented systems for energy trading: full lifecycle delivery, mentoring, contributing to architecture, collaborating with users and support teams, and ensuring observability and incident resolution for high-volume/low-latency data applications.

Own accurate daily P&L reporting and validation, review junior output, reconcile flash vs actual variances, perform month/quarter/year-end reporting and reserve calculations, obtain PC & FO signoff, handle ad-hoc queries, support projects and cross-functional work, and identify control gaps to improve processes.

The Senior Front Office Risk Manager will direct the risk management team's activities, assess risks in the trading portfolio, interact with traders, advise senior management, and manage juniors while ensuring alignment with team goals and preparing reports.

Develop, implement and calibrate derivatives pricing models for energy markets (gas, preferably power). Collaborate with trading, structuring, quant dev and quant risk to deliver C++ libraries and Python services for pricing, risk, backtesting and parameter estimation.

The Communications Officer is responsible for internal communications, employee engagement, managing content, and coordinating events to keep staff informed and engaged in a dynamic energy trading environment.

Design, build and maintain backend-focused full‑stack solutions for post-trade functions (risk, finance, treasury). Work across requirements, implementation, CI/CD, deployments, database design, BI/reporting, Azure cloud, containerisation, and stakeholder engagement to deliver robust, supportable systems.