Linux Performance Engineer for Ciklum Client (Remote basis)
On behalf of our Client, Ciklum is looking for a Linux Performance Engineer to join our Client’s team.
We are looking for a proficient performance engineer to analyze hardware configuration in our data centers. A system Linux administrator with relevant experience may also be a good match.
- Space for innovation
- Great, international team
- Dynamic and international work environment
- Great creative leeway and high autonomy
- Space for exchange of opinions
- Casual way of communication
- Flexible working times
- Remote basis, part-time job
Client — is an American company, which was founded 25 years ago by a handful of technical and financial experts drawn from some of the largest and most prestigious financial institutions.
- Provide technical assistance to improve system performance, capacity, reliability and scalability.
- Perform root cause analysis of performance issues and suggest corrective actions.
- Evaluate system performances and recommend improvements.
- Generate periodic performance reports for management review.
- Modern performance analysis and tuning: terminology, concepts, models, methods and techniques
- Dynamic tracing techniques and tools, including examples of DTrace, SystemTap and performance
- Kernel internals: uncovering what the OS is doing
- Using system observability tools, interfaces, and frameworks
- Understanding and monitoring application performance
- Optimizing CPUs: processors, cores, hardware threads, caches, interconnects, and kernel scheduling
- Memory optimization: virtual memory, paging, swapping, memory architectures, busses, address spaces, and allocators
- File system I/O, including caching
- Storage devices/controllers, disk I/O workloads, RAID, and kernel I/O
- Network-related performance issues: protocols, sockets, interfaces, and physical connections
- Performance implications of OS and hardware-based virtualization
- Benchmarking: getting accurate results and avoiding common mistakes
- Deep understanding of the Linux kernel including the virtual memory, VFS, IPC, network, CPU scheduling system, memory management, disk and network I/O, etc
- Demonstrated experience with performance tuning including tradeoffs between low latency and throughput, hardware and BIOS-related tuning, and proper employment of NUMA
- Understanding of interrupt handling, IRQ and IRQ affinity, processor sets/cgroups
- Knowledge of tracing frameworks like bcc/BPF, perf, or DTrace
- Experience in diagnosing performance issues using methodologies like the USE method
- Familiarity with web servers, SQL databases, caching, and the kernel networking stack
- Proficiency in reading and debugging C source code to troubleshoot kernel-space issues
- Python or Go knowledge
What's in it for you
- Unique working environment where you communicate and work directly with client
- Variety of knowledge sharing, training and self-development opportunities
- Competitive salary