Top Tech Jobs & Startup Jobs in London

Lead and grow a team of seven ML and data engineers delivering production machine learning, AI, recommendation, search, commerce, and agentic systems. Own hiring, performance, delivery, technical direction, architecture, MLOps, evaluation, monitoring, responsible AI, and stakeholder communication. Guide reliable data pipelines, model deployment, experimentation, LLM evaluation, and production agent systems using tools such as LangGraph and Amazon Bedrock.

Provides first-line HR support across the employee lifecycle, including onboarding, contracts, payroll inputs, benefits, HRIS data, right-to-work documentation, invoices, and policy administration. Maintains accurate people records, resolves employee queries, supports UK payroll and cyclical HR processes, and contributes to HR systems, process improvements, and AI-enabled solutions. Requires discretion, strong organisation, data literacy, communication skills, and an understanding of UK employment law and payroll requirements.

Senior finance leader owning Group IFRS external reporting, leading year‑end and half‑year audits, producing listed financial statements, and managing subsidiary statutory filings. Acts as technical accounting authority on complex IFRS issues, owns cashflow forecasting and liquidity analysis, drives controls and accounting policy, leads cross‑functional projects, and develops a high‑performing finance team.

Develop and maintain Android features for Trainline’s travel app within a cross-functional product team. Responsibilities include designing and implementing software, delivering new functionality, participating in the full product lifecycle, collaborating with Product, contributing to roadmaps, and using Agile, continuous integration, pair programming, clean code, and quality-focused engineering practices.

Lead data science for Trainline’s B2B product organization by uncovering growth opportunities, shaping product roadmaps, defining success metrics, supporting experimentation, and driving data-informed decisions. The role requires communicating complex analyses to senior stakeholders, evaluating product engagement, navigating ambiguous datasets, building predictive models, and using visualization and automation tools to deliver measurable business impact.

Analyze customer behavior and travel product performance using large datasets. Translate complex findings into actionable recommendations, dashboards, reports, and presentations for technical and non-technical stakeholders. Collaborate with Product, Design, Data Science, and external partners; help define success metrics and support evidence-based decision-making across travel and disruption initiatives.

Own the UK brand strategy and lead integrated campaigns from brief through launch. Translate global strategy into local execution, guide creative agency partners, support product launches, establish campaign measurement and optimization, manage brand tracking and budget, and coach junior team members. The role requires strong consumer brand marketing experience, creative judgment, commercial acumen, stakeholder influence, and comfort using data to drive decisions.

Drive revenue for Trainline Media by acquiring and growing media agency and direct client accounts. Own client relationships, develop data-driven advertising proposals, collaborate on campaign delivery and optimization, manage sales pipelines, negotiate contracts, meet commercial targets, and provide performance insights demonstrating ROI. The role requires strong digital advertising knowledge, relationship-building, presentation, negotiation, and CRM skills.

Own investigations and data-driven solutions across search, supply, and commerce. Analyze complex datasets using SQL and Python, identify incident patterns and product opportunities, connect data sources, and support cross-functional customer experience initiatives. Mentor junior colleagues, guide problem-solving, balance competing priorities, and help convert recurring issues into lasting improvements. Marketplace or product analytics experience is beneficial but not essential.

Leads end-to-end development of Trainline’s consumer brand propositions, especially for new products and markets. Uses customer insight, research, behavioral science, data, and competitor analysis to shape hypotheses and define compelling solutions. Partners with Product, UX, Engineering, Brand, Creative, Growth, and regional teams to launch propositions, establish execution guidelines, define success metrics, and report business and marketing impact to senior stakeholders.