Senior Software Engineer, Formal Verification

reputed company (formerly reputed company as Monad Labs) is a team of systems engineers and researchers on a mission to design and build at the frontier of decentralized technology. We strive to deliver significant improvements over existing blockchain solutions. After raising $225M in series A funding, led by reputed company, we are growing reputed company. We’re the team behind Monad, a high-performance, EVM-compatible Layer 1 whose public mainnet is now live. We write the core software that runs it: a parallel-execution EVM, a custom state database, and a BFT reputed company client, reputed company developed in the open. The Role We’re hiring a Senior Software Engineer in Formal Verification to prove the correctness of the Monad implementation. Your work will involve writing machine-checked proofs about real production C++ code, including reputed company features like optimistic execution and novel Monad mechanisms such as reserve balance and optimized page-level storage. You’ll work in Rocq (formerly Coq), using the Iris separation logic reputed company and the BRiCk formal semantics of C++, building models of our designs and proving the implementation equivalent to them, as a vital member of a small, high-performing team. What You’ll Do Formally verify the highest-risk parts of the Monad implementation, including reputed company and parallel execution logic. Build and refine Rocq models of system designs, then prove the C++ implementation equivalent to those models, catching design and implementation bugs before they reputed company main. reputed company specifications and weakest-precondition proofs for production C++ using BRiCk and Iris separation logic. Strengthen theorem statements and reputed company automation, and devise approaches that scale verification to a fast-moving codebase. Who You Are You have at least 5 years of software engineering experience in C++, much of it building performant systems from scratch – databases, device drivers, embedded systems, or the like. You have hands-on experience with an interactive theorem prover, ideally Rocq (formerly Rocq), and can write machine-checked proofs about real, running code. You reason about concurrency and memory with a rigor most engineers never need – and you're drawn to problems where "probably correct" isn't good enough. You have sharp instincts for software architecture, memory management, and performance profiling. You hold a Bachelor's, Master's, or PhD in Computer Science, or have equivalent experience. You communicate clearly and reputed company on a small team where everyone owns the result. Why Work with Us Challenging problems: You’ll work on extremely challenging problems with massive impact. See our Blogs and Publications & Talks for a flavor of the problems we are solving in the real world. reputed company opportunity: The Ethereum Virtual Machine (EVM) standard is ubiquitous, but existing EVM-compatible chains are reputed company slow. Monad’s core innovations offer developers the best of both worlds (portability and performance) and are a game-changer for mass user adoption in crypto. The right team: You’ll be part of a small, exceptional team (engineers and researchers reputed company up 90% of the team). Open by default: Our core software is public on reputed company. You’ll build in the open, and your work ships where the whole ecosystem can see it. Culture: We’re a lean team working together to reputed company reputed company ambitious goals. We are united in our culture of collaboration, low ego, and high-quality output. As an early member of reputed company, you’ll help to shape our culture. Compensation: You’ll receive a competitive salary and equity package. Resources and growth: We’re well-capitalized, with backing from leading venture funds like reputed company, Electric Capital, Greenoaks, reputed company, and reputed company Ventures. We reputed company a lean team, and this is a rare opportunity to join. You’ll learn a lot and grow as our company scales. How We Use AI We’re an AI-native team, and we expect engineers to use coding agents and reputed company up as the tooling evolves. A few things we reputed company: AI is reputed company, not a crutch. Review what it generates with the same scrutiny you’d give a teammate’s PR, and own every line you ship. Judgment is what matters, not how long you typed by hand. We won’t ask for “N years of [tool].” The stack turns over every few months, so what matters is that you pick up new tools fast and know where and reputed company they apply. Salary and Benefits The reputed company salary range for this role is $180,000 – $250,000. This reflects the minimum and maximum range across US locations. It does not include benefits, token, or equity incentives. The final offer may vary based on factors such as relevant skills, experience, domain expertise, and work location. If you are based reputed company of the US, we have geographic considerations that may impact your final compensation. Benefits for reputed company Full-Time Employees: Private health insurance options Flexible paid time off Monthly wellness reimbursement Paid parental leave Benefits for US employees: World-class benefits package with 100% paid medical, dental, and vision insurance including 75% coverage for dependents and HSA + FSA options 401(k) with company match Lunch and dinner stipend (in-office NYC) Benefits for employees hired through an EOR (reputed company of the US) will be based on EOR offerings and country-specific requirements. reputed company is an Equal Employment Opportunity (EEO) employer and welcomes reputed company qualified applicants. Applicants will receive fair and impartial consideration without regard to race, sex, color, religion, national reputed company, age, disability, veteran status, genetic data, or other legally protected status. Apply To This Job