Role Details

Location

Netherlands

Salary (est. USD)

~$154K - $242K (est. USD)

Estimated based on role seniority, company stage (Public), and industry benchmarks. Actual compensation may vary.

How is this calculated?

Seniority band Senior / Lead

Base range $140K – $220K

Stage adjustment Public (+10%)

Adjusted range $154K – $242K

Based on Web3 & AI industry compensation data. Seniority is inferred from role title keywords. Company stage affects ranges: early-stage (−15%), late-stage/public (+10%).

Department

System Engineers

Type

Full-time

Vertical

AI Infrastructure

Posted

3 days ago

Hiring Manager

Best Guess

Job Description

Why work at Nebius
Nebius is leading a new era in cloud computing to serve the global AI economy. We create the tools and resources our customers need to solve real-world challenges and transform industries, without massive infrastructure costs or the need to build large in-house AI/ML teams. Our employees work at the cutting edge of AI cloud infrastructure alongside some of the most experienced and innovative leaders and engineers in the field.

Where we work
Headquartered in Amsterdam and listed on Nasdaq, Nebius has a global footprint with R&D hubs across Europe, North America, and Israel. The team of over 1400 employees includes more than 400 highly skilled engineers with deep expertise across hardware and software engineering, as well as an in-house AI R&D team.

The Product

In a rapidly evolving world, trust in AI depends on AI agents being grounded in fresh, verified real-world data. Search is the foundation that makes this possible.

We are building an agent-native search platform designed specifically for AI systems rather than human users. Our product provides programmatic, low-latency, and observable search APIs that AI agents use to retrieve, filter, and reason over real-world information at scale.

The Role

We are looking for a Senior Software Engineer to work on the runtime systems of a novel search engine tailored for agentic AI consumption. In this role, you will focus on building low-latency, high-throughput systems that serve search queries in real time. You will work on the critical path of user-facing requests, where performance, predictability, and efficiency directly impact product quality. You will design and operate systems that handle thousands of requests per second under strict latency budgets, optimizing every layer from request handling to data access and response assembly.

In this position, your responsibility will be to

Design, implement, and operate core runtime services for serving search queries
Build and optimize request flows (query processing, retrieval orchestration, response assembly)
Develop systems that meet strict latency budgets under high load
Optimize CPU, memory, and data access patterns in performance-critical paths
Ensure reliability, observability, and predictability in production
Build well-tested systems with clear boundaries while allowing architectural evolution
Define observability primitives (logs, metrics, traces, latency breakdowns)
Monitor and improve latency, throughput, and cost efficiency
Collaborate with indexing and ML teams to integrate retrieval and ranking components
Support experimentation through controlled rollouts and benchmarking

You may be a good fit if you:

Have 5+ years of experience building production backend systems
Have strong expertise in C++ or Rust
Have experience with high-load, low-latency user-facing systems
Have worked on systems handling thousands of RPS under strict latency constraints
Understand performance at a systems level (CPU, memory, networking)
Have operated services in production and handled incidents and debugging
Understand distributed systems fundamentals and tradeoffs
Think end-to-end about request flows rather than isolated components
Can balance correctness, latency, and development speed
Collaborate effectively across engineering, ML, and product

Strong candidates may also have experience with:

DBMS (OSS or SaaS) and cloud infrastructure
High-load web applications or large-scale APIs
Performance-critical systems (e.g. trading platforms)
Low-level performance tuning and optimization
Open-source contributions
Competitive programming or CTFs
SHAD or similar advanced programs
Conference talks or technical publications

We conduct coding interviews as part of the process.

What we offer

Competitive salary and comprehensive benefits package.
Opportunities for professional growth within Nebius.
Flexible working arrangements.
A dynamic and collaborative work environment that values initiative and innovation.

We’re growing and expanding our products every day. If you’re up to the challenge and are excited about AI and ML as much as we are, join us!