Top Tech Jobs & Startup Jobs in London

Own global payroll operations and equity administration across employees, EORs, and contractors. Run accurate payroll cycles, perform payroll-to-cash and payroll-to-ERP reconciliations, administer equity programs in Carta, maintain data consistency across HiBob, Carta, Deel, and ERP, and support audits and external advisors with accurate operational data.

Own key components of the monthly close including journal entries, reconciliations, intercompany transactions, flux analysis, and financial reporting. Work with the Controller to build audit-ready, SOX-capable processes across multi-entity operations and support IPO readiness in a fast-growing, controls-conscious environment.

As an AI Creative Producer, you'll develop and scale AI-generated content across various platforms, collaborate with teams, and enhance production workflows.

Create experiential graphic design for global events, trade show booths, environmental graphics, pop-ups, and summits. Translate creative direction into spatial designs that work across materials, architecture, lighting, and physical environments. Develop brand design languages, contribute to ideation, present concepts, prepare production-ready artwork, and coordinate junior designers or external partners. The role also supports broader brand graphic design initiatives and requires independent project ownership across international teams.

Own enterprise customer success across Central and Eastern Europe, driving onboarding, platform adoption, technical enablement, renewals, upsells, and multi-product expansion. Analyze usage and performance signals to remove adoption barriers and demonstrate measurable value. Partner with Sales, Engineering, and leadership to generate durable revenue growth. Build the region’s first dedicated Customer Success function while supporting complex AI, developer tools, and B2B SaaS deployments.

The Operations Recruiter will oversee the full recruiting lifecycle for key Operations functions, partner with business leaders, and enhance candidate experiences to attract top talent.

Build large-scale data pipelines and infrastructure for frontier AI model training. Develop data-processing models such as classifiers, quality filters, and labeling systems; design deduplication, quality scoring, labeling, and augmentation strategies; and create reliable tooling for researchers to explore and train on massive datasets. The role also evaluates how data quality and composition affect model outcomes, with web crawler experience as a bonus.

Build and operate large-scale distributed web crawlers that discover, fetch, extract, deduplicate, and recrawl billions of pages. Develop targeted pipelines for audio, video, and multilingual data, transforming web content into training-ready datasets. Create infrastructure and tooling for researchers to request, monitor, evaluate, and explore crawled data, while ensuring reliability, efficiency, compliance, politeness, and rate-limit handling.

Own relationships with 40–50 enterprise EMEA clients, leading onboarding, product adoption, usage monitoring, renewals, and account expansion. Help build scalable customer success playbooks, manage NRR and GRR KPIs, and contribute to team OKRs. The role requires demonstrating value for technical SaaS products, navigating complex stakeholder environments, solving customer challenges, and driving commercial outcomes.

Deploy and optimize frontier AI models for real-time production use at scale. Responsibilities include improving inference latency, throughput, and cost through quantization, distillation, KV-cache optimization, batching, and custom kernels; building high-performance streaming serving systems; and creating tooling that enables safe, efficient model deployment.