Staff Software Engineer - AI Search & Data Pipelines

Nebius Group; Amsterdam; Remote; EUR 120,000 - 180,000; Full time

Benefits offered by this job

Competitive compensation

Career growth

Flexible work

Collaborative culture

Impactful AI projects

International teams

Job summary

Nebius, listed on Nasdaq and headquartered in Amsterdam, is seeking a Staff Software Engineer to build and operate large-scale indexing systems for our agent-native search platform.

You will design offline/nearline data pipelines, improve storage formats, observability, and scalability, collaborating with ML teams to meet retrieval and ranking needs. 8+ years in backend or data infra and strong Go skills are required.

Qualifications

• 8+ years of experience building production backend or data infrastructure systems.
• Strong Go experience (C++/Rust is a plus).
• Experience with large-scale data processing systems (10+ GiB/sec throughput, petabyte-scale datasets, etc.).
• Experience building or operating databases, storage systems, data planes, or indexing pipelines.
• Strong understanding of distributed systems, fault tolerance, consistency, and scalability.
• Experience running production systems and handling operational incidents.
• Systems-thinking mindset and ability to reason about end-to-end data flows.

Responsibilities

• Design, implement, and operate large-scale indexing systems and data pipelines that sit at the core of our search infrastructure.
• Develop and optimise indexing strategies balancing performance, freshness, and resource efficiency.
• Work on storage formats, compaction strategies, and update mechanisms to keep data accessible and current.
• Ensure reliability and predictability of pipelines under high-throughput conditions.
• Build well-tested components with clear responsibilities and interaction contracts, while remaining flexible as the system evolves.
• Define and implement observability primitives, including structured logs, metrics, and data quality signals across offline and nearline pipelines.
• Monitor throughput, resource usage, and cost, and drive optimisations when business needs require it.
• Collaborate with runtime and ML teams to ensure indexing outputs meet retrieval and ranking requirements.
• Enable safe experimentation on indexing strategies and data processing logic through controlled rollouts and clearly defined quality signals.

Skills

Go programming

Distributed systems

Data infrastructure

Backend engineering

Education

Bachelor's degree in CS or related field

Tools

Spark

Flink

MapReduce

Beam

Job description

Nebius, listed on Nasdaq and headquartered in Amsterdam, is seeking a Staff Software Engineer to build and operate large-scale indexing systems for our agent-native search platform.

You will design offline/nearline data pipelines, improve storage formats, observability, and scalability, collaborating with ML teams to meet retrieval and ranking needs. 8+ years in backend or data infra and strong Go skills are required.