6 days ago
Kraków, PolandStaff+
Responsibilities
- Lead performance work from hypothesis through instrumentation, design, benchmarking, and measured customer impact.
- Design and improve petabyte-scale components for memory efficiency, concurrency, I/O, tail latency, scalability, and reliability.
- Use profiling, flame graphs, lock-contention analysis, benchmarks, telemetry, eBPF, and continuous profiling to identify and prevent performance issues.
- Advise partner teams on architecture, roadmaps, performance trade-offs, risks, and evidence-based recommendations.
- Plan performance work, estimate effort, lead postmortems, and identify root causes of regressions.
- Mentor peers and less experienced engineers and influence technical direction across teams.
Requirements
- Advanced production C++ experience, including memory management, allocators, move semantics, cache-aware structures, and performance trade-offs.
- Deep performance engineering experience across profiling, flame graphs, lock contention, atomics, memory ordering, latency optimization, benchmarking, statistical analysis, and performance modeling.
- Experience with architecture and system design for performance, scalability, and operability.
- Experience characterizing performance in Docker and Kubernetes environments.
- Strong Python skills for tooling, benchmark harnesses, telemetry pipelines, and performance analysis.
- Knowledge of Linux performance internals, including scheduling, memory, page cache, filesystems, block I/O, and networking.
- Experience with Git and CI automation for builds, tests, benchmarks, and releases.
- Bachelor's degree plus 8 years of related experience, master's degree plus 6 years, or PhD plus 3 years.
- Preferred experience with search or storage engines, large-scale data platforms, Splunk internals, hardware-level optimization, Go or Rust, cloud infrastructure, or reproducible performance test environments.
- Track record of informing technical decisions, quantifying trade-offs, communicating clearly across audiences, and mentoring engineers.
Benefits
- Flexible hybrid work model balancing work-from-home and in-office collaboration.
- Career growth through technical ownership, leadership opportunities, coaching, and mentorship.
- Opportunities to work on petabyte-scale performance problems with measurable customer impact.
- Stable work environment with clear ownership, measurable goals, collaborative peers, and opportunities to explore open-source projects and new technologies.
- Equal opportunity employment and reasonable accommodations throughout the hiring process.
Tech Stack
Categories
About Cisco
Cisco designs and sells networking, security, and collaboration platforms for enterprises, service providers, and governments, spanning routers and switches, Wi‑Fi, firewalls, zero‑trust, observability, and cloud-managed IT (Meraki) plus Webex. Its business model mixes hardware, software subscriptions, and support/consulting services. Founded in 1984 and headquartered in San Jose, California, Cisco is a public company traded on Nasdaq and serves customers across data centers, campuses, and service provider networks.