Top Tech Jobs & Startup Jobs in London

Provide international tax and transfer pricing advice across complex cross-border trading activities. Lead tax aspects of projects from planning through implementation, manage transfer pricing documentation and APA processes, perform CFC, PE and hybrid mismatch analyses, and support compliance, governance, and stakeholder communication.

Support building and maintaining a modern data lakehouse platform: implement storage standards, develop ingestion and transformation pipelines, capture lineage, enforce data quality, collaborate with analytics and business teams, follow governance/security practices, participate in agile delivery, and troubleshoot issues with senior engineers.

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.

Develop and enhance bespoke backend-focused full-stack applications for post-trade functions (Treasury, Finance, Risk, Settlements). Design databases, build .NET services, deploy to Azure, support CI/CD, engage business stakeholders, and improve development processes. Contribute to BI and data-visualisation solutions and provide operational support.

Provide testing services for Front Office analytics and decision-support systems: author and run automated tests, create test plans, validate data with SQL/ClickHouse, test APIs and .NET Windows Services, support integration/UAT and release/smoke testing, and drive increased test automation.

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.

Develop, deliver and support front-office trading tools end-to-end: design solutions, implement features in C#/WebAPI with relational databases, perform testing and automation, follow DevOps practices, document changes, and collaborate with traders and cross-functional teams to ensure supportable, robust systems.

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 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.

The Market Risk Analyst will analyze and quantify market risk, prepare reports, interact with traders, and support risk model validation.