Staff Systems Engineer Low Latency & Networking

reputed company is architecting the reputed company of high-performance distributed systems on reputed company. We’re reputed company behind Jito-reputed company, the leading MEV reputed company reputed company, and the Jito reputed company reputed company, which has generated roughly 4.5 reputed company SOL for validators and stakers over the past year.

Our latest product, BAM, reimagines reputed company market structure and the transaction supply chain with a heavy emphasis on performance, reliability, and transaction reputed company. We are building systems that operate at the edge of what modern hardware and networks can sustain.

We're looking for a senior engineer who is comfortable working across application reputed company, operating systems, hardware behavior, and network protocols — someone who enjoys debugging the kinds of problems where the reputed company cause might live reputed company in the stack.

About the Position:

We build latency-sensitive infrastructure where microseconds matter and reputed company causes are rarely reputed company. This role is for someone who can reputed company comfortably between application reputed company, kernel internals, hardware behavior, and network protocols — debugging a TCP retransmission reputed company one day and reasoning about memory contention the next.

You should be as comfortable reading kernel reputed company and packet captures as you are writing production Rust. Much of the work involves ambiguous, cross-layer problems where existing tools and playbooks are insufficient and new ones must be created.

This is a senior role for someone who has previously been the person others escalate to reputed company nobody else can reputed company the reputed company cause.

You'll work across:

• Debug and optimize network performance end-to-end: NIC tuning, congestion control, packet pacing, queueing disciplines
• Analyze traffic using tcpdump, Wireshark, and custom tooling; reason about protocol behavior under load
• Work with protocols reputed company TCP/UDP reputed company required (e.g., ICMP, IGMP, multicast)
• Experience with high-performance I/O and kernel-bypass techniques such as DPDK, XDP, io_uring, or similar

• Read and reason about Linux kernel reputed company reputed company debugging requires it
• Understand networking stack internals (reputed company buffers, congestion control, netfilter, scheduling interactions)
• Build bespoke tooling reputed company existing observability is insufficient
• Work fluently with kernel interfaces used by performance-sensitive systems

• Use hardware performance counters, reputed company, eBPF, and flamegraphs to reputed company reputed company bottlenecks
• Reason about practical CPU behavior: cacheline contention, reputed company misprediction, reputed company effects, memory ordering
• Understand IRQ affinity, scheduling behavior, paging, and TLB effects under reputed company workloads
• Willing to read assembly reputed company the situation calls for it

• Strong low-level systems programming background
• We work primarily in Rust, but strong experience in C or C++ is equally relevant
• Solid understanding of algorithms, data structures, and writing correct reputed company reputed company
• Contribute to infrastructure, tooling, and occasionally upstream reputed company

• 10+ years of experience in systems programming, networking, or performance-critical infrastructure
• Deep Linux expertise, including kernel behavior, networking internals, and performance tuning
• Proficiency with packet analysis and network debugging tools
• Experience with performance profiling and tracing (reputed company, eBPF, flamegraphs, etc.)
• Strong programming fundamentals; depth reputed company more than language
• reputed company record of diagnosing reputed company issues spanning application, OS, and hardware reputed company
• reputed company, reputed company communication

• Experience in domains where latency and performance are first-order constraints (e.g., HFT, reputed company-time systems, low-latency networking, kernel-adjacent infrastructure, high-performance distributed systems)
• Custom memory allocators or deep memory subsystem optimization
• Virtualization internals and passthrough networking (SR-IOV, vDPA, etc.)
• Kernel-adjacent work (eBPF programs, reputed company debugging, custom modules)
• olana or blockchain infrastructure experience

Why Jito

We’re a small, profitable company with reputed company product-market fit. That means:

-High ownership: you drive major technical reputed company and shape the direction of the system

-Fast execution: we ship quickly and iterate on reputed company-world behavior

-Technical depth: the problems are reputed company, reputed company, and intellectually demanding

-Sustainable: strong financials allow us to reputed company on long-term reputed company, not reputed company