# Senior Software Engineer (Data Platform, C++) at Nebius > Netherlands · Senior · Data engineering · open. Source: https://alderhq.app/jobs/greenhouse%3Anebius%3A4529931101 (read 2026-11-07). ## Facts (observed) - Company: [Nebius](https://alderhq.app/companies/nebius) - Location text: Amsterdam, Netherlands; London, United Kingdom; Amsterdam; Germany; Prague; United Kingdom - Where it can be done from (inferred): Netherlands (evidence: "Location: Amsterdam, Netherlands; London, United Kingdom; Amsterdam; Germany; Prague; Unit") - Posted: 2025-02-03 (641 days ago) - First seen by alder: 2026-11-02 · last verified: 2026-11-04 - Reposted: 0 times · edited: 0 times - Apply on the employer's site: https://careers.nebius.com/?gh_jid=4529931101 - Skills listed (inferred): C++, Kafka, Kubernetes, Spark, Airflow, SQL, LLMs, Testing ## Pay and sponsorship - Posted pay: not posted - Market band for similar posted roles (Amsterdam, n 3): p25 €73k, median €86k, p75 €92k - Recognised sponsor (NL): registered as "Nebius B.V." (checked 2026-11-03, [register](https://ind.nl/en/public-register-recognised-sponsors/public-register-regular-labour-and-highly-skilled-migrants)) ## Description (the employer's text) ### About Nebius Nebius is leading a new era in cloud infrastructure for the global AI economy. We are building a full-stack AI cloud platform that supports developers and enterprises from data and model training through to production deployment, without the cost and complexity of building large in-house AI/ML infrastructure. Built by engineers, for engineers. From large-scale GPU orchestration to inference optimization, we own the hard problems across compute, storage, networking and applied AI. Listed on Nasdaq (NBIS) and headquartered in Amsterdam, we have a global footprint with R&D hubs across Europe, the UK, North America and Israel. Our team of 1,500+ includes hundreds of engineers with deep expertise across hardware, software and AI R&D. ### The role #LI-MM1 We’re looking for a Software Engineer with strong C++ expertise to join the team building and operating Nebius Data Platform — a distributed storage and a processing platform that acts as the company’s “source of truth” and the backbone of many internal (and some external) products. Nebius Data Platform is a single multi-tenant ecosystem based on YTsaurus — instead of running separate HDFS/Kafka/HBase-style systems, we provide storage, compute, and analytics capabilities inside one platform. Built on top of the open-source YTsaurus ecosystem, we run and extend our own Nebius distribution and develop significant in-house functionality (core and platform-level). We can design, implement, and roll out features end-to-end on our clusters without waiting for upstream approvals and contribute upstream when it makes sense. At scale today, this includes~500 servers, ~20k CPU cores and ~10 PB of compressed data in our largest production cluster, supporting workloads ranging from business-critical pipelines and financial transactions to large-scale ML/LLM training datasets and compute. ### What’s inside the platform You’ll work on a system that includes (and ties together): - Distributed Storage (Cypress): transactional semantics, tiered storage, erasure coding, replication, and strong reliability expectations. - Compute & ETL: a cluster-wide job scheduler (tens of thousands of cores), MapReduce, YQL for SQL-like data processing, and SPYT (Spark over YTsaurus) for modern data engineering. - Interactive analytics (CHYT): ClickHouse® instances spun up directly on compute nodes for fast SQL over data in-place. - Dynamic Tables: low-latency NoSQL KV with distributed ACID transactions for OLTP-style workloads and feature stores. - Orchestracto: workflow orchestration deeply integrated with the platform (Airflow-like, but platform-native). ### What you’ll do We’re looking for engineers who combine strong systems skills with product sense: understanding who uses the platform, why certain capabilities matter, and making pragmatic trade-offs to maximize impact. On our team, engineering work is expected to be connected to real users and outcomes — you’ll regularly align with internal stakeholders, clarify requirements, and help drive prioritization. In this role, you will: - Design and implement new functionality in YTsaurus core (C++) with production reliability in mind. - Build and evolve platform-level capabilities: platform architecture and operating model—multi-cluster growth, shared primitives, and a consistent experience that scales with new teams and use cases. - Improve end-to-end platform experience for internal (and external-facing) users: APIs, guardrails, debugging workflows, and automation. - Own production quality: incident response / on-call rotation, root cause analysis, and turning learnings into durable fixes. ### Example projects - Roll out sharded YTsaurus masters (incl. Kubernetes operator support) and build automatic balancing of metadata across master cells (consensus groups) to remove control-plane bottlenecks and unlock 10–100x cluster growth. - Make CHYT interactive SQL faster and more predictable at high load via performance work like data-skipping / min-max-style indexes and improved execution introspection. - Turn Orchestracto into a platform product by defining the building blocks, developer experience, and governance for how teams create and share workflows. --- Data: alder (https://alderhq.app). Cite https://alderhq.app/jobs/greenhouse%3Anebius%3A4529931101 and the date you read it. Observed facts come from the employer's own listing; location reach, level, family and skills are inferences.