Jobs at Nebius

Build browser infrastructure and web access systems for an agentic search engine operating at internet scale. Research browser communication, fingerprinting, client verification, networking, JavaScript execution, and modern web technologies. Develop browser instrumentation, debugging, observability, and experimentation tooling, then translate technical research into reliable production systems.

Design, implement, and operate low-latency, high-throughput runtime services for an agentic search engine. Build and optimize query processing, retrieval orchestration, response assembly, observability, and production reliability under strict latency budgets. Improve CPU, memory, networking, data access, throughput, and cost efficiency while collaborating with indexing, machine learning, and product teams. Support experimentation through benchmarking and controlled rollouts.

Design and operate internet-scale crawling and content acquisition infrastructure for an agent-focused search engine. Build distributed crawlers, ingestion pipelines, schedulers, URL discovery and deduplication systems processing billions of URLs. Improve freshness, coverage, reliability, observability, and resource efficiency while collaborating with indexing and machine learning teams. The role requires strong backend and distributed systems expertise, production operations experience, and proficiency in Go or C++.

Develop and deploy machine learning models for retrieval, reranking, indexing, search relevance, crawling, and content understanding. Build large-scale embedding and retrieval systems, evaluation pipelines, and quality metrics for agent-native search. Integrate models into high-throughput production services while balancing latency, quality, and cost. Collaborate on architecture and product decisions involving search, retrieval, and LLM-based systems.

Manage and scale global People programs spanning performance management, change management, rewards, and people operations. Build plans, governance frameworks, timelines, and communications; coordinate cross-functional stakeholders; track milestones, dependencies, risks, and resources; resolve priority conflicts; and evaluate program outcomes. The role supports organizational growth, process improvement, and consistent delivery across multiple regions.

Perform intercompany accounting across international entities, including cost-plus calculations, cost allocations, journal entries, reconciliations, discrepancy resolution, period-end close support, reporting, and SOX-related internal controls. The role validates financial data, coordinates with local finance teams, investigates foreign exchange and posting differences, maintains documentation, and supports audits in a fast-changing post-IPO environment.

Lead applied research and system design for agent-native search: build multi-stage retrieval, ranking, and grounding methods for LLM-driven, iterative agent workflows; deploy high-throughput, low-latency production systems; define evaluation metrics; run experiments and mentor engineers.

Work on YDB distributed storage and database systems to maximize performance on modern and legacy hardware (NVMe, HDD, DPUs). Reengineer components for low-latency, high-throughput workloads, profile and debug production systems, and design resilient distributed storage primitives. Collaborate on incident resolution and production deployments to support Nebius cloud services.

Lead the global employee relations and performance management strategy, including policies, governance, complex case oversight, investigations, disciplinary and grievance processes, and organizational change consultation. Build effective works council and employee representative relationships, manage employment-law and reputational risks, advise senior leaders, strengthen manager capability, and use case data to identify trends and improve organizational practices.

Own optimization of LLM and VLM inference systems from model artifacts through production deployment. Improve latency, throughput, memory efficiency, GPU utilization, quality, reliability, and cost per token. Deploy and extend inference engines, build compression and quantization workflows, implement decoding and KV-cache optimizations, create reproducible benchmark harnesses, diagnose production regressions, and collaborate with kernel, platform, research, infrastructure, product, and customer teams.

Own the product strategy and roadmap for large-scale search infrastructure serving AI agents. Set search quality and release standards, manage depth, latency, freshness, and cost tradeoffs, guide index coverage, and shape retrieval capabilities for agentic workflows. Partner with search engineering, research, evaluation, data, customer success, and customers to identify quality gaps and prioritize improvements. This hands-on senior individual contributor role requires experience building and shipping production search or ranking systems at scale.

Own enterprise sales across the UK and Nordics, managing the full cycle from prospecting and pipeline creation through complex deal closure. Build regional presence through outbound sales, partnerships, events, and networks; engage technical, business, and executive stakeholders; apply MEDDPICC and value-based selling; collaborate with product and engineering; exceed revenue targets and provide accurate forecasts.

Own the vertical search product from market selection and data-provider evaluation through roadmap, customer discovery, specifications, launch, adoption, and revenue. Partner with engineering, data, research, evaluation, customer success, and go-to-market teams to build industry-specific AI search products. Define use-case quality standards, shape ranking and product experiences, and prioritize investments across verticals.

Drive cloud capacity expansion across data centers by analyzing resource consumption, forecasting demand, identifying risks, and translating forecasts into infrastructure requirements. Coordinate procurement, hardware delivery, installation, deployment, and customer availability across supply chain, data center, engineering, product, and business teams. Maintain expansion plans, communicate timelines and dependencies, and proactively resolve cross-functional issues.

Serve as embedded internal controls and risk partner for corporate functions (Tax, Treasury, HR). Lead SOX walkthroughs, risk assessments, control design, remediation, audit coordination, and automation efforts to improve control effectiveness and reporting. Support transformations, system implementations and stakeholder engagement to balance risk mitigation with operational practicality.

Lead and coordinate complex, cross-functional compute hardware and software programs (kernel, virtualization, drivers, firmware, GPUs). Manage dependencies, risks, execution, deployment automation, validation, observability, and customer/vendor interactions to scale large GPU/HPC cloud infrastructure.

Maintain and scale DevTools SRE systems: improve user-facing developer workflows, build fault-tolerant self-healing architecture, optimize performance, modify open- and closed-source tools (GitLab, TeamCity), and support users while measuring improvements via metrics.

Design and implement core YTsaurus functionality in C++, build and evolve platform-level capabilities, improve APIs and UX for internal users, own production quality including incident response/on-call, and collaborate with stakeholders to prioritize and deliver scalable data platform features.

Design, build, and operate Nebius Serverless AI core components (control plane, scheduler, runtime, autoscaler, APIs). Solve cold-start latency, GPU scheduling, multi-tenant isolation, routing. Drive architecture, write design docs, raise engineering standards, run SRE practices, lead incident response, and work with customers and product teams to deliver a scalable, low-latency platform.

Drive complex VPC and cloud-networking programs from goals to production: define outcomes, expose dependencies, manage risks and schedules, coordinate cross-team delivery, validate rollouts, and ensure operational readiness.