Top Tech Jobs & Startup Jobs in London

Lead a team building backend systems for business expense management (receipts, expense reports, bookkeeping, card products). Own the technical roadmap, drive architecture and implementation, mentor engineers, collaborate with product and cross-functional squads, and apply LLM technologies to automate document scanning, categorization, and reconciliation.

Own and operate production Python infrastructure supporting FX pricing, risk analytics, curve construction, and trading systems. Responsibilities include developing microservices and shared quantitative libraries, managing monitoring and alerting, maintaining CI/CD pipelines, responding to incidents, and improving system reliability and performance. The role also offers growth into pricing models, trading strategies, risk modeling, backtesting, and customer behavior modeling while collaborating with quants, traders, analysts, product managers, and engineers.

Leads issuer-side scheme compliance and card disputes across Visa and Mastercard programs. Develops compliance strategy, manages specialists, oversees card launches and supply-chain vendors, monitors fraud and dispute thresholds, negotiates with scheme partners, maintains audit-ready controls, and drives scalable automation, dashboards, templates, and playbooks.

Build and improve fraud prevention and account integrity systems protecting customers from account takeovers and financial crime. Develop backend services and frontend features, design and operate CI/CD pipelines, and work with distributed and concurrent systems. Optimize relational and non-relational databases, apply test-driven development, and own projects end to end with a customer-focused, data-driven mindset. Collaborate with Product, Data Science, and Investigations teams; machine learning lifecycle experience is beneficial.

Leads global employment and expatriate tax governance, infrastructure, compliance, cross-border expansion, restructuring, and vendor management. Develops tax equalization, tax protection, gross-up, shadow payroll, and mobility frameworks while advising HR, Finance, Legal, and Corporate Tax on international tax risks, social security, permanent establishment, and employee deployments.

Build and maintain high-reliability infrastructure powering Wise’s money-sending transactions. Collaborate with product, design, and data teams to develop customer-facing send products, make architectural decisions, and improve system performance and reliability. The role is approximately 80% backend and 20% frontend development, with strong emphasis on customer outcomes, technical excellence, product thinking, and independent execution.

Owns EMEA commercial outcomes for Wise Platform payouts, combining hands-on enterprise sales with leadership and go-to-market development. The role manages and coaches two sellers, defines ICPs and sales playbooks, drives £50,000–£100,000 deals, manages forecasting and pipeline, negotiates complex partner agreements, and builds a scalable payouts partner ecosystem across international SME and mid-market segments.

Build and operate developer productivity tools and shared engineering services for more than 1,200 engineers. Own agentic tooling, security, model access, telemetry, evaluation, and an engineering knowledge base delivered through an MCP server. Improve developer portals and software delivery workflows, lead AI enablement through workshops and guidance, identify cross-team productivity opportunities, and drive large technical initiatives while maintaining high standards for software quality, reliability, observability, and adoption.

Design, build, and own backend pricing services end-to-end for Personal & Business products. Contribute to architecture, code reviews, reliability, scalability, observability, incident response, and collaborate with product, compliance and stakeholder teams to enable pricing features and experiments.

Build and maintain data pipelines and integrations to enable continuous control monitoring for security and compliance. Translate control requirements into measurable KPIs and dashboards, partner with control owners, and deliver data-driven insights to reduce risk and improve compliance processes.