Protocol Software Engineer - Consensus
Sei Labs
About Sei Labs
Sei Labs builds open sourced technology for the high-performance Sei Blockchain, the first parallelized EVM Layer 1 blockchain designed to scale with the industry. The unique optimizations built into Sei enable Web3 applications to reach Web2 level scale and performance, driving the mass adoption of digital assets.
Our teams are comprised of former Google, Goldman Sachs, Robinhood, Nvidia, and Databricks veterans dedicated to onboarding the next billion users onto a vibrant ecosystem of applications.
Sei Labs has raised over $30M from top investors including Jump Crypto, Multicoin Capital, Coinbase Ventures, Distributed Global, Hudson River Trading, and Flow Traders.
Check out our website and docs for more details.
Protocol Engineering at Sei
Sei Labs is looking for a Protocol Engineer to lead the development of core components of the Sei Blockchain. You'll work at the forefront of blockchain infrastructure, designing and optimizing the foundational layers of a high-performance, scalable decentralized network. You'll collaborate closely with our engineering team and ecosystem partners, constantly innovating to push the boundaries of blockchain technology. If you're passionate about low-level systems design, performance optimization, and shaping the future of decentralized networks, this is a rare opportunity to make a lasting impact in Web3.
Responsibilities
Write code to build the core sei blockchain (consensus, state management, etc.)
Proactively identify and drive optimizations and improvements to the product.
Collaborate with our frontend team to fine tune our REST API to support our customers.
Take ownership over your work and the work of the team.
Qualifications
5+ years of infrastructure engineering experience.
Proven results in building or scaling Layer 1 blockchains performance.
A proven tech lead with experience planning and leading large projects with long-term impact on a single system or team.
Strong technical grasp and excellent judgment on task prioritizations.
Able to tackle complex engineering problems that deliver results.
History of creating and applying new processes and tooling to increase engineering efficiency.
- ...more details. Storage at Sei Sei Labs is looking for a Protocol Engineer specialized in the EVM to lead the development of core... ...Write code to build the core sei blockchain (execution, consensus, state management, etc.) Analyze and own the end to end performance...SuggestedFull time
$180k - $300k
...Description Software Engineer, Consensus - Anza Who We Are Anza is a Solana R&D lab pushing the boundaries of blockchain performance... ...toughest problems in Web3. Crypto ecosystems rely on robust protocols, and we believe those are best built out in the open,...SuggestedFull timeWorldwideFlexible hours- The engineering team at Chainalysis is inspired by solving the hardest technical challenges... ...becomes increasingly mainstream. The Protocols team delivers high-quality, low-latency... ...functional stakeholders. Manage the full software development lifecycle, including...SuggestedFlexible hours
- Chainalysis seeks experienced engineers to architect and evolve scalable blockchain data pipelines, leveraging AI-native workflows to... ...boost velocity and code quality. You will contribute blockchain protocol expertise, work with Product Managers, and mentor junior...Suggested
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...Monad Labs) is a team of systems engineers and researchers on a mission... ...now live. We write the core software that runs it: a parallel-... ...custom state database, and a BFT consensus client , all developed in... ...improvements to the Monad protocol. Your work will involve distributed...SuggestedFull timeWork at officeFlexible hours$180k - $300k
...Description Senior Software Engineer, Generalist - Anza Who We Are Anza is a Solana... ...Web3. Crypto ecosystems rely on robust protocols, and we believe those are best built out... ...such as Rust or C++. Experience with consensus algorithms, distributed systems, and blockchain...Full timeWorldwideFlexible hours- ...FTSE Russell, WisdomTree, ANZ, and top protocols such as Aave, Lido, GMX and many... ...more at chain.link.About the RoleAs a software engineer on the Data Products team, you’ll collaborate... ..., blockchains, game theory, consensus algorithms, and decentralized applications...Remote work
$106k - $209k
...failover, and tunable consistency. As an engineer on the team, you will design and... ...replication features based on the Raft consensus protocol Improve failover behavior, availability... ...distributed or highly concurrent software systems Strong systems fundamentals...Work at officeLocal areaWorldwideFlexible hours$225k - $300k
...idiosyncrasies of the exchange. Founded by customer-obsessed engineers and researchers, we love tackling tough technical challenges... ...) and/or building matching engines Understanding of consensus protocols (e.g. Viewstamped Replication, Raft, Paxos) Experience building...Work at officeLocal areaRelocationFlexible hours- ...Job Description Job Description Software Engineer Opportunity Our client is on crypto’s cutting-edge technology,... ...through innovations aligned with the blockchain protocol, network infrastructure, and consensus model Architect, develop, and maintain the Solana...Remote workFlexible hours
- ...an exciting and rewarding opportunity for you to take your software engineering career to the next level. As a Software Engineer III at JPMorganChase... ..., including familiarity with agent-to-agent (A2A) protocols.Proven ability to troubleshoot, debug, and resolve issues...
$220k - $300k
...we’ve built the leading sales coaching software for organizations doing sales offline. We... ...If it keeps the product running and the engineers shipping, it's yours. You'll write code... ...Authentication and authorization protocols — OAuth 2.0, SAML, OIDC. You'll own customer...Full timeWork at officeRelocation package- ...interfaces and robust API solutions. About the role As a Software Engineer on the Experience Platform team, you'll play a crucial role... ...~ Strong understanding of authentication and authorization protocols ~ Excellent collaboration skills with demonstrated ability...Full timeWork at office
$174k - $252k
...practical experience.5 years of experience with software development using C++.5 years of... ...or related technical fields.Experience engineering database internals (e.g., storage engines, consensus algorithms, replication protocols, or query optimization).Experience building...$147k - $210k
...practical experience.2 years of experience with software development using C++.2 years of... ...Science or related technical field.Experience engineering database internals (e.g., storage engines, consensus algorithms, replication protocols, or query optimization).Experience...- ...understanding. We are looking for a Senior Software Engineer with strong modern C++ expertise to help... ...ledger. This role sits at the core protocol layer, working on high-impact distributed systems that secure consensus, transaction processing, and network performance...Full timeImmediate startRelocation
$180k - $230k
...York or Washington D.C., the Senior Software Development Engineer will be responsible for designing, architecting... ...Semantic Kernel Model Context Protocol Vector and hybrid search... ...practices across teams. Building consensus across engineering, infrastructure,...Local areaImmediate startFlexible hours- ...Senior Software Development Engineer Gibson Dunn is a leading global law firm, advising clients on... ...Semantic Kernel), and Model Context Protocol (MCP) AI Evaluation & Quality: LLM... ...-term technology roadmaps. Build consensus across engineering, infrastructure,...
$160k - $200k
.... That means designing APIs, tools, and protocols that agents and MCP servers ours and our... ...internal teams, external partners, and the AI engineers building on top of the platform Set... ...for ~6+ years of professional software engineering experience, with significant...Full timeWork at office$175k - $225k
...how we do it. DRW is a place of high expectations, integrity, innovation and a willingness to challenge consensus. We are seeking a Senior Software Engineer to join our Unified Platform (UP) organization as part of our efforts to build a mid-frequency platform...Full timeTemporary workWork experience placementFlexible hours$180k - $290k
...Stellar ecosystem. As a C++ Engineer at Stellar, you'll be at the... ...powering our global ledger and consensus. This is your chance to work... ...Stellar Core - the backbone software behind the Stellar Network.... ...detailed technical feature and protocol (RFC) specifications - we take...Full timeTemporary workWork at officeLocal areaWorldwideFlexible hours$180k - $300k
...experienced executives and core engineers solving the toughest... ...Crypto ecosystems rely on robust protocols, and we believe those are... ...protocols and blockchain client software. Your expertise will help... ...skills: regularly achieves consensus with peers, and clear status...Contract workRemote workWorldwide$135k - $350k
...blockchain. You'll work with a team of talented engineers to build performant and reliable... ...about building robust, high-performance software that helps shape the future of the crypto... ...web3 technologies, including blockchain protocols, smart contracts, and decentralized...Full timeFlexible hours$75k - $160k
...About Us: Waterfall is a trading protocol for rare NFTs and collectible digital art with live on-chain pricing. At Waterfall, we... ...design intuition • Knowledge in full-stack and/or protocol engineering • Understanding of solidity Responsibilities : •...Full timeWork at officeFlexible hours$84.14k - $125k
...for commercial, industrial, military, or scientific use. The Software Engineer will design, develop, integrate, and test advanced software... ...radios, and hardware components via standard communications protocols (Ethernet, HP-IB/GPIB, USB, and Standard Commands for Programmable...Full time$138.4k - $198k
...Uniswap Labs is a core contributor to the Uniswap Protocol, the world's largest DEX, with over $4 trillion in volume across 17 chains... ...value flows on the internet. We're hiring our first new-grad engineering cohort. Almost nobody in crypto hires and develops early-...Full timeContract workInternshipWork at officeRemote workHome office$130k - $155k
...Your Impact The Software Engineer III (Platform) is an experienced engineer that handles complex tasks and contributes significantly... ...including gRPC, GraphQL, and REST), basic understanding of protocols, and proficiency in API documentation. ~ Familiarity with...Full timeContract workH1bVisa sponsorshipFlexible hours$105k - $125k
...Your Impact The Software Engineer II (Backend) is responsible for handling complex tasks, and contributing significantly to team projects... ...in designing and developing APIs, basic understanding of protocols, and proficiency in API documentation ~ Familiarity with...Full timeH1bVisa sponsorshipFlexible hours$100k - $160k
...psychologists, and therapists who have developed our evidence-based protocols, for a personalized, multi-month journey to better health.... ...and address the root causes of chronic illness. As a Software Engineer, you will contribute to frontend, backend, and mobile...Full timeLocal areaRemote workFlexible hours- ...York-based startup building sustainable and efficient DeFi protocols on high-throughput decentralized infrastructure. Our long-term... ...volume across Solana markets. Ellipsis Labs is seeking software engineering summer interns to join our team in 2027. As an early-stage...InternshipSummer internship
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