bloXroute LabsBL

Principal Performance & Kernel Engineer

bloXroute is the "Flash Boys" for DeFi. It created the first and only high performance blockchain distribution network (BDN) with the best solution for Ethereum, BSC, and Polygon.

bloXroute Labs

Employee count: 11-50

Salary: 100k-150k USD

United States only
bloXroute is seeking an experienced Senior DevOps Engineer who is passionate about kernel internals, hardware-level optimization, and high frequency network transport-not just configuring VMs. You will be at the frontline of designing the fastest, leanest, most reliable systems.

Responsibilities

  • Architect and automate bare-metal, zero-latency environments with customized Linux/Unix kernel tuning, real-time schedulers, and deterministic execution
  • Rip apart and optimize every subsystem: CPU affinity, IRQ routing, TCP/IP stack, NUMA balancing, context switch reduction, memory allocators, BIOS configs
  • Design, deploy, and manage high-bandwidth, low-jitter, zero-packet-loss networking setups
  • Own kernel bypass, SmartNIC offloads, RDMA, DPDK pipelines — if it touches a packet, you control it
  • Build battle-hardened telemetry (eBPF, perf, custom probes) to capture system metrics at nanosecond precision
  • Hunt and kill latency regressions with no mercy
  • Partner directly with hardware vendors and firmware engineers to squeeze every cycle out of silicon
  • Lead crisis-mode performance war rooms when stakes are highest.

Requirements

  • Master of Unix/Linux: You dream in syscalls and kernel parameters
  • Networking Savant: TCP, UDP, Ethernet, multicast, PTP — understood at the wire level
  • Code Warrior: You automate and hack in C, Python, Bash, Go — whatever gets it done
  • Hardware Whisperer: You know how CPU caches, NIC queues, PCIe buses, and memory hierarchies behave under pressure
  • Relentless Diagnostician: You bring scientific method discipline to debugging, benchmarking, and tuning.

About the job

Apply before

Posted on

Job type

Full Time

Experience level

Senior
Manager

Salary

Salary: 100k-150k USD

Location requirements

Hiring timezones

United States +/- 0 hours

About bloXroute Labs

Learn more about bloXroute Labs and their company culture.

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bloXroute is the "Flash Boys" for DeFi. It created the first and only high performance blockchain distribution network (BDN) with the best solution for Ethereum, BSC, and Polygon. The bloXroute BDN and DeFi trading tools allow its users to win at crypto trading. The BDN utilizes a global network of servers optimized for network performance. Nodes access this network through open source gateways and users can access it through the bloXroute public-API.

The BDN network propagates blockchain transactions and blocks closer to the speed of light. It provides traders with the speed and reliability required for crypto transactions. bloXroute is the leader in mempool services, block streaming and anything Defi performance. The BDN also allow blockchains to scale by speeding the time it takes to communicate the current state. The BDN fast communication reduce the blocks’ size and frequency limits. This is true for all consensus mechanisms, including Proof of Stake, Proof of Work, and DAGs.

Employee benefits

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Retirement benefits

401(k) to help you invest in your future.

Company retreats

Annual trip to celebrate the company’s anniversary.

Summer hours

On Fridays work from home or end the work day at 3pm.

Unlimited paid time off

Employees decide when and for how long they take time off.

View bloXroute Labs's employee benefits
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bloXroute Labs

Company size

11-50 employees

Founded in

2017

Chief executive officer

Uri Klarman

View company profile

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bloXroute Labs hiring Principal Performance & Kernel Engineer • Remote (Work from Home) | Himalayas