Top Tech Jobs & Startup Jobs in London

Develop and productionize scalable machine learning systems for content understanding, search, ranking, recommendations, moderation, computer vision, and generative AI. Responsibilities include data preparation, feature engineering, model training, evaluation, deployment, monitoring, optimization, batch and real-time pipelines, RAG and LLM applications, system design, observability, and cross-functional technical leadership.

Own the strategic vision and roadmap for Expedia Group’s sponsored listings auction platform. Lead auction mechanics, bidding, pricing, ad relevance, and optimization initiatives to improve traveler experience, partner ROI, marketplace efficiency, and revenue. Partner with engineering, machine learning, data science, and business teams to deliver technical products, define metrics, analyze performance, and use experimentation and AI tools to guide decisions. Communicate strategy and results to senior stakeholders while driving innovation in digital advertising and marketplace technology.

Build and maintain high-availability, high-transactional full-stack applications and scalable services for Expedia’s Property Detail Pages. Lead system and API design, data modeling, end-to-end delivery, cross-functional collaboration, technical strategy, mentoring, and operational excellence. Integrate AI/ML solutions safely and ethically, work across multiple technology stacks, and modernize legacy architectures while improving performance, scalability, reliability, and maintainability.

Owns variable incentive and SPIFF plan design, impact modeling, governance, documentation, Workday setup, and communications. Leads sales operating model evolution, partner tier segmentation, framework adoption, and strategic sales excellence programs across regions. Partners with Sales, HR, Finance, Legal, Product, and Communications, advising senior leaders and using data and AI to define KPIs, evaluate program effectiveness, and improve decision-making.

Leads the end-to-end traveler experience for third-party accommodation inventory across discovery, booking, payments, cancellations, modifications, and post-booking service. Defines product vision, principles, standards, and roadmap; translates complex needs into requirements and metrics; uses experimentation and analytics to guide decisions; aligns cross-functional teams and senior leaders; manages risks and trade-offs; and incorporates responsible AI-driven tools to improve traveler and business outcomes.

Leads a hands-on software engineering team building and operating highly available, secure, high-traffic Hotels.com services. Owns technical direction, system and API design, architecture, delivery, reliability, and operational excellence. Develops engineers and managers, collaborates cross-functionally, and guides AI/ML adoption in customer-facing products. The role requires direct involvement in design reviews, coding, debugging, experimentation, hiring, mentoring, and coordinating complex cross-team initiatives.

Lead architecture and delivery of scalable Android search and recommendations experiences. Set technical direction, design systems and APIs, integrate AI/ML, mentor mobile engineers, and collaborate with product and design to drive mobile strategy.

Drive growth for Expedia Group’s B2B product suite by developing market and competitive insights, influencing product strategy and roadmaps, leading go-to-market planning, identifying growth levers, and creating positioning, sales enablement materials, pitch decks, and demos. Partner cross-functionally with Product, Commercial, Analytics, and Sales Enablement teams to improve customer value and commercial readiness.

Design, build, and operate scalable, high-performance backend services and APIs. Lead architecture, code reviews, and cross-team integrations. Integrate AI/ML responsibly, diagnose and resolve production issues, and participate in on-call rotations to maintain operational excellence.

Own the strategy, roadmap, metrics, and operating model for user-perceived performance across web and native app experiences. Partner with engineering, architecture, analytics, experimentation, observability, and platform teams to improve speed, responsiveness, stability, and measurement. Establish performance standards, budgets, release guardrails, regression processes, and accountability mechanisms. Lead cross-functional discovery, prioritize technical investments, influence roadmaps without direct authority, and communicate performance outcomes to senior stakeholders.