Top Tech Jobs & Startup Jobs in London

As a Senior Backend Engineer at DuckDuckGo, you'll lead backend projects, mentor engineers, and develop AI-enhanced features for the company's privacy-centric product line.

As the Director of Data Science, you'll mentor teams, oversee projects, drive data-driven decisions, and implement AI and ML solutions while enhancing our data pipeline.

Build secure, privacy-focused native Android applications using Kotlin, Maestro, and Graphite. Responsibilities include developing Android features, improving autofill, supporting Privacy Pro, and enhancing phishing and malware protection. The role requires end-to-end project ownership, effective UX collaboration using quantitative and qualitative data, creative problem-solving, and clear communication across cross-functional teams.

Lead design engineering across DuckDuckGo products, combining product design expertise with hands-on coding to prototype, specify, and ensure high-quality implementation. Collaborate closely with engineers, shape design systems, improve workflows, conduct research and experimentation, and autonomously deliver impactful projects for millions of users. Help establish and grow the company’s design engineering discipline while advancing privacy-focused product experiences.

Lead high-complexity data science initiatives improving search ranking, retrieval, relevance, and evaluation. Develop and deploy production machine-learning and NLP solutions, investigate LLM-based ranking features, optimize SQL queries, and work with sparse privacy-preserving data. Define strategies for ambiguous problems, guide other data scientists, collaborate with product teams, and own projects from scoping through production.

Lead and own major components of DuckDuckGo's privacy technology using Go, Node.js, Python, and Perl. Design and implement privacy features, improve search and AI features without compromising privacy, build tracker-detection features, participate in privacy reviews and audits, and mentor engineers over time.

Lead high-complexity privacy engineering initiatives across DuckDuckGo products. Own privacy reviews, audits, and technical programs from definition to delivery; build automation and privacy-preserving infrastructure; evolve triage and review processes; drive cross-functional projects; and hire and mentor privacy engineering talent while shaping company-wide privacy strategy.

Lead hands-on marketing design from concept through execution across multiple campaigns for Duck.ai, Search/Browse, and Subscriptions. Generate creative direction, produce high-craft on-brand assets, collaborate with cross-functional stakeholders, build reusable systems to scale marketing production, and mentor designers while working independently on scoping, stakeholder alignment, and delivery.