Senior Search Engineer (Rust) (#4761)

N-iX is a global software solutions and engineering services company

N-iX is looking for Senior Search engineer (Rust) to join the fast-growing team on our projects.

Our client is a leading European AI company developing cutting-edge document search and indexing systems for enterprise and AI applications.
Our products combine high-performance technologies, scalability, reliability, and data security, fully aligned with European regulatory and ethical standards.

As a Senior Search Engineer (Rust) , you will take ownership of backend services, search and indexing pipelines, API/SDK design, and performance optimization across our document search platform.
This is a senior, hands‑on role, designed to be covered by 1-2 FTE split across specialists, ensuring full operational continuity and technical excellence.
You will be working at the core of our Document Index Team , enabling seamless search, retrieval, and processing of large-scale document datasets.

Responsibilities:

• Develop and maintain backend services in Rust , focusing on performance, reliability, and scalability
• Design, implement, and optimize document search and indexing pipelines using Qdrant and PostgreSQL
• Drive API and SDK design, including lifecycle management (deprecation, sunsetting, adoption)
• Lead complex architecture and data model migrations for evolving systems
• Troubleshoot, debug, and resolve performance and reliability issues in production
• Collaborate with Infra team to deploy and manage services on Kubernetes using Helm
• Contribute to CI/CD pipelines and deployment automation (GitLab, GitHub Actions )
• Mentor junior engineers and ensure team knowledge sharing
• Maintain clear documentation for system design, operational workflows, and troubleshooting

Requirements:

• 4+ years of professional backend development experience (including Rust )
• Strong experience with search systems, vector databases (Qdrant or other ), and relational databases (PostgreSQL )
• Hands‑on experience with Kubernetes and Helm for deploying and scaling services
• Solid understanding of distributed systems, resiliency patterns, and scalable architecture
• Experience in API/SDK design, data modeling, and lifecycle management
• Proficient in CI/CD workflows (GitLab, GitHub Actions ) and deployment automation
• Excellent debugging, profiling, and performance tuning skills
• Strong communication skills and ability to work in cross‑functional teams
• Ability to independently own and operate services in a shared‑responsibility model (1–2 FTE split across specialists)
• English level - at least Upper‑Intermediate

We offer:

• Flexible working format - remote, office‑based or flexible
• A competitive salary and good compensation package
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing