We are redirecting you to the source. If you are not redirected in 3 seconds, please click here.

Senior Validator Engineer at MLabs. Senior Validator Engineer (Solana). Location: . Remote - Europe only. Compensation: . $180K - $300K. We are reengineering blockchain infrastructure from first principles to make global digital markets as precise and dependable as physical systems. Built on Solana, our platform delivers deterministic execution, guaranteed inclusion, and low-latency performance—solving the foundational failures that cause transactions to miss and systems to collapse under pressure.. By placing high-performance compute close to where transactions happen and coordinating execution through our advanced scheduling engine, we empower developers to build scalable applications and give institutions the reliability they demand. We believe financial infrastructure should behave like physics: fast, reliable, and predictable—every time, without exception.. As a . Senior Validator Engineer. , you will spearhead our engineering efforts surrounding the Solana Validator (both Agave and Firedancer), driving the innovation and implementation of next-generation high-performance distributed systems. You will join a highly proficient team of core engineers who have all contributed to foundational network components.. Our engineering team is building an entire platform in . Rust. that connects L1s and L2s, allowing for deeply complex interactions with the running network. While your primary focus will be Rust and core validator components, you will have exposure to the C-coded Firedancer validator. We believe in working at every level of the stack to understand the "big picture" of how everything is wired together.. Key Responsibilities:. Refactor, improve, and lead the software design and implementation of core validator components.. Maintain a large, modular codebase, ensuring it remains future-proofed and highly performant.. Translate complex protocol specifications into actionable issues and high-quality code.. Automate security testing processes and benchmarks, creating innovative tools for continuous system improvement.. Collaborate through frequent architectural discussions, design specs, and rigorous code reviews.. Mentor less experienced engineers and document complex technical systems effectively.. We hire exceptional individuals who are motivated by coherent system design and eager to solve complex core infrastructure challenges.. Experience:. At least 3 years of experience in blockchain and distributed systems, with a deep technical understanding of L1/L2 architectures (ideally Solana).. Rust Proficiency:. 2–3+ years of professional experience writing high-performance, efficient Rust code.. System Design:. Demonstrated experience in designing, developing, and deploying scalable distributed systems.. Domain Expertise:. Direct involvement in the Solana ecosystem, specifically contributing to the runtime, scheduler, or other core systems.. Education:. Bachelor’s or Master’s degree in Computer Science, Engineering, or a related technical field.. Mindset:. An analytical approach to mitigating security threats and a passion for shipping quality code frequently.. Preferred Qualifications:. Proficiency in writing and debugging . C code. .. Active open-source contributions to core protocols (e.g., Firedancer, Reth, Lighthouse, Geth).. Engagement with the blockchain security research community (publications, conference presentations, or open-source research).. Company Location: Italy.