search Browse Jobs
Senior Software Engineer (YDB Team)Nebius · Remote - Europe
Nebius logo

Nebius

company page ↗

Senior Software Engineer (YDB Team)

🗓️ Posted 2026-09-03 Remote - Europe Hybrid ICT
💰 Salary Not shared 📊 Market 6,500 EUR–9,500 EUR/mo

About the Company

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.

About the Role

The YDB Development Team at Nebius is looking for Mid and Senior Software Developer with a strong expertise in C++. YDB is an open-source product that serves two main purposes within Nebius: a scalable and reliable binary object storage foundation powering S3 Object Storage, Filestore, Network Block Storage tailored to process AI-related workloads; and a distributed relational database and message broker supporting Nebius cloud operations such as IAM, Billing, Audit Trails and Logging.

Responsibilities

  • ● Adapt YDB to leverage modern hardware to its fullest potential: QLC NVMe drives, Dual 800Gb/s network adapters, BlueField DPUs
  • ● Maximize performance on widely used devices such as HDDs and TLC NVMe
  • ● Reengineer YDB components with more efficient algorithms to solve complex system challenges

Requirements

  • ● 5+ years of experience in C/C++ programming for highly loaded systems
  • ● Understanding of core dumps, flamegraphs, and sanitized builds
  • ● Experience developing high-performance, low-latency components
  • ● Understanding of CPU caches, Modern CPU atomic operations and NUMA architectures
  • ● Experience with on-disk data structures (LSM trees, B+ trees)
  • ● Hands-on experience with debugging and profiling tools such as perf, VTune, bpftrace, gdb
  • ● Knowledge of storage-related algorithms (erasure coding, checksumming)
  • ● Understanding of storage device internals (NVMe, HDD)
  • ● Familiarity with Linux kernel, SPDK/DPDK, libaio, iouring
  • ● Knowledge of networking concepts and protocols (IP, TCP, UDP, DNS, ideally InfiniBand, RoCE/RDMA)
  • ● Experience with Kubernetes and Grafana
  • ● Track record of active participation in incident resolution
  • ● Experience designing production-grade distributed storage components
  • ● Knowledge of availability and durability calculations