Staff / Senior Software Engineer (Agentic Search) - Index

Location: Zurich, Switzerland. Applicants must be authorized to work in the country in which they apply and provide proof of employment eligibility.

Company

Nebius builds a full-stack AI cloud platform for data processing, model training, inference, and production deployment.

What you will do

• Design, implement, and operate large-scale indexing systems and data pipelines for an agent-native search platform.
• Build offline and nearline pipelines that ingest, process, and organize massive datasets into efficient, queryable structures.
• Optimize indexing strategies, storage formats, compaction, and update mechanisms for performance, freshness, and resource efficiency.
• Ensure reliability and predictable operation under high-throughput conditions, including tens of gigabytes per second across evolving datasets.
• Implement observability through structured logs, metrics, data-quality signals, and monitoring of throughput, resources, and cost.
• Collaborate with runtime and ML teams to align indexing outputs with retrieval and ranking requirements and enable safe experimentation.

Requirements

• 5+ years of experience building production backend or data infrastructure systems.
• Strong experience with Go.
• Experience with large-scale data processing, including 10+ GiB/s throughput or petabyte-scale datasets.
• Experience building or operating databases, storage systems, data planes, or indexing pipelines.
• Strong understanding of distributed systems, fault tolerance, consistency, scalability, and production incident management.
• Systems-thinking mindset with the ability to reason about end-to-end data flows.

Nice to have

• Experience with C++, Rust, Spark, Flink, MapReduce, or Beam.
• Experience with content systems, scraping, proxying, anti-bot infrastructure, ad tech, social networks, or large-scale content platforms.
• Knowledge of DBMS internals and cloud infrastructure.
• Open-source contributions, competitive programming, CTF participation, advanced technical programs, conference talks, or technical publications.

Culture & Benefits

• Competitive compensation.
• Career growth and learning opportunities.
• Flexibility, ownership, and an international working environment.
• Collaborative culture and the opportunity to work on impactful AI projects.

Hiring process

• Coding interviews are part of the hiring process.