Top Tech Jobs & Startup Jobs in London

Build and maintain backend services and APIs supporting disputes, returns, refunds, auto-cancellation, and AI-driven customer support. Develop integrations with order, payment, shipping, and support systems; design reliable, secure, event-driven solutions; and own monitoring, on-call, testing, deployments, and technical debt. Collaborate with Product, Design, Data Science, Payments, Shipping, and CX Operations while running experiments and feature-flagged releases to improve customer issue resolution.

Own data science and analytics for the Shipping team, analyzing buyer and seller behavior, delivery performance, carrier economics, and product outcomes. Design and evaluate A/B tests, build dashboards and scalable datasets, debug data issues, and provide strategic recommendations. Partner with product, operations, engineering, platform, and machine learning teams to improve shipping strategy, experimentation, and data-driven decision-making.

Build and maintain iOS payment experiences for wallet balances, checkout, withdrawals, refunds, seller onboarding, and tax capture. Contribute to migrating payment surfaces from UIKit to SwiftUI, write automated tests, handle complex state and edge cases, and own features end to end. Collaborate with backend engineering, product, design, and senior engineers while supporting globally compliant marketplace payment flows.

Lead go-to-market strategy for new Depop products and features, including customer research, competitive analysis, positioning, messaging, campaigns, and experimentation. Partner cross-functionally with Product, Design, Research, Insights, CX, CRM, Communications, and Marketing teams to inform roadmaps, improve customer sentiment, and ensure consistent product messaging across channels.

Depop is hiring a Technical Programme Manager to support technical programs within its circular fashion marketplace. The provided description does not include specific responsibilities, qualifications, technologies, salary, travel requirements, or clearance requirements. Depop offers hybrid-working options, healthcare benefits, parental leave, development support, pension matching, and other employee benefits.

Lead complex, cross-functional technical programmes across Depop and eBay, managing dependencies, risks, stakeholder alignment, reporting, planning, and decision-making. Improve operating systems and delivery practices, use AI to reduce operational friction, coach teams, mentor peers, and communicate effectively with senior leadership. The role requires strong technical and product literacy, strategic thinking, facilitation, influencing, and the ability to operate effectively in ambiguous environments.

Leads strategic analysis, company-level performance reporting, and topline GMV forecasting for Depop. Partners with Strategy, Strategic Finance, and executive stakeholders to answer ambiguous business questions, identify growth opportunities, explain performance deviations, and support strategic decisions. The role requires independent analytical judgment, strong communication, cross-functional collaboration, and management of one direct report.

Manage cloud financial operations across AWS, Databricks, and Datadog, optimizing cloud spend and driving cost-saving initiatives. Partner with Engineering, Finance, Legal, Vendor Management, and eBay to align cloud usage with business objectives and financial forecasts. Provide actionable insights, support strategic growth, and improve cost visibility in a fast-paced, agile environment.

Build and maintain Kafka Connect services and streaming data pipelines for Depop’s data platform. Extend the bronze streaming layer, implement data contracts and freshness checks, develop quarantine and alerting systems, support event onboarding and troubleshooting, document technical decisions, and collaborate with senior engineers and teams across data infrastructure, ML, and insights.

Lead the research, design, productionization, and scaling of machine learning models for pricing and shipping optimization. Own high-impact projects, conduct rigorous experiments, apply causal inference and optimization techniques, collaborate with engineers and cross-functional stakeholders, communicate findings, and mentor junior team members.