Senior Test Engineer

Jito Labs is architecting the future of high-performance distributed systems on Solana. We're the team behind Jito-Solana, the leading MEV Solana client, and the Jito Block Engine, which has revolutionized block building on Solana. Today, Jito-Solana currently runs on 88% of stake and 1,100 validators, producing an additional $370M of revenue for stakers and validators on the network.

At Jito Labs, you'll work alongside a small, nimble group of engineers and operators who are passionate about solving complex technical challenges at the cutting edge of Solana trading and infrastructure. As a small, profitable company with product-market-fit, we're in a unique position to tackle ambitious technical challenges while maintaining our startup speed. Our team culture emphasizes:

- High ownership: Every team member drives significant technical decisions and shapes our product roadmap.

- Fast execution: We ship rapidly and iterate based on real-world feedback. Progress, not motion.

- Technical excellence: We tackle complex problems with elegant, scalable solutions.

- Sustainable growth: Strong financials and proven market fit enable us to focus on long-term impact.

If you're excited about:

- Solving complex distributed systems challenges

- Working with cutting-edge MEV and trading infrastructure

- Contributing to open-source blockchain technology

- Making a tangible impact on one of the fastest-growing L1 blockchains

...then we want to hear from you.

We're not just building tools - we're architecting the future of high-performance distributed systems. Our work directly impacts Solana's ecosystem, enabling a faster network, better capital efficiency, and more robust DeFi applications for millions of users.

We offer competitive compensation, significant equity, and the opportunity to work on problems that matter. Don't just watch the future of blockchain unfold—help us build it.

About the Position

We are seeking an exceptional Senior Test Engineer to join our core team building critical, next-generation infrastructure for the Solana ecosystem. Your goal is to accelerate the rate of engineering progress by ensuring that code deployed to production meets our performance, reliability, and compliance specifications. You will become very familiar with Solana's tech stack and ours, working very closely with core engineers within Jito Labs and other client teams (Anza, Firedancer, Syndica) to build high value testing frameworks.

Responsibilities

- Working with core engineers to understand challenges in moving fast and build monitoring and testing infrastructure to help the team move fast.

- Stand up and tear down Solana clusters.

- Build synthetic load testing plans for Solana clusters and Jito's core stack.

- Plan testing frameworks for core engineers so new code written can have high impact tests.

Relevant Backgrounds

The engineering team at Jito Labs consists of multi-disciplinary engineers. If you have experience in any of the following, you may be a good fit:

- Embedded Systems

- Firmware

- Operating Systems

- Robotics

- HFT

Requirements

• 5+ years of systems-level programming in C, C++, or Rust (we use Rust)
• Obsessed with progress, not just motion, especially in the context of testing
• Willingness to dive into complicated systems to accurately root cause and fix issues
• Familiar with synthetic load testing and traffic replay
• Hungry to learn
• Clear, simple communication
• High agency
• Excitement for decentralized finance and high performance systems