• P2P (San Francisco, CA)
    …countries. The Role: To build the next chapter of Solana Mobile, we are seeking a Senior Protocol Engineer to join our team full‑time. The ideal candidate is ... in Computer Science or higher degree. 3 years of work experience as Protocol Software Engineer . 5 years of work experience as Backend Engineer . Able to… more
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  • P2P (San Francisco, CA)
    A dynamic web3 company is seeking a Senior Protocol Engineer to develop on-chain programs for the Solana Mobile ecosystem, ensuring adoption and growth. The ... ideal candidate will have strong proficiency in Rust, experience with the Solana blockchain, and the ability to build scalable backend systems. This full-time position allows for remote work within US time zones and requires excellent communication skills.… more
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  • Remoteworldwide (San Francisco, CA)
    A decentralized social network is seeking a Protocol Engineer to design and implement smart contracts for their platform. This role involves collaborating with ... teams, ensuring security, and managing lifecycle processes. The ideal candidate should have over 4 years of experience with DeFi protocols and a strong understanding of EVM. This position offers a competitive remote-first work environment with benefits… more
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  • P2P (San Francisco, CA)
    A cutting-edge blockchain technology company is seeking a Protocol Engineer to lead the development of core components of the Sei Blockchain. This role involves ... designing and optimizing foundational layers of a high-performance decentralized network. Candidates should have 5+ years of infrastructure engineering experience and a proven track record in Layer 1 blockchain scaling. Join a fully remote team and contribute… more
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  • Kubelt (San Francisco, CA)
    …everyone. This opportunity would be with Tools for Humanity. About the Team: The Protocol team is responsible for fulfilling this mission in a decentralized way by ... of people. One of the ways we do this is through a privacy-preserving protocol that powers WorldID using state-of-the-art cryptography. We are active in the Ethereum… more
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  • Tools For Humanity Corporation (San Francisco, CA)
    …100. This opportunity would be with Tools for Humanity. About the Team: The Protocol team at TFH consists of a group of engineers focused on shipping ... ecosystem as well as contribute to open research and protocol design. *This role is onsite based in our...design and implementation of existing software, and engage in protocol related efforts exploring the cutting edge of blockchain… more
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  • Tools For Humanity Corporation (San Francisco, CA)
    A growing tech company in San Francisco is seeking a software engineer with expertise in Rust. In this collaborative role, you'll develop production-grade systems ... critical to the World ecosystem. Ideal candidates have 5+ years in software engineering, experience with Rust, and a passion for solving complex problems. This role offers competitive compensation, unlimited PTO, and a collaborative office space in downtown… more
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  • jobr.pro (San Francisco, CA)
    …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… more
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  • Kubelt (San Francisco, CA)
    A leading tech firm in San Francisco seeks a Software Engineer to lead the development of privacy-preserving systems. The ideal candidate has over 4 years of ... software engineering experience, including 2 years in Rust or significant C++/Go expertise. Responsibilities include developing secure systems, collaborating with cross-functional teams, and maintaining service deployment. Benefits include unlimited PTO,… more
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  • Soul of the Machine (San Francisco, CA)
    As a Senior Back End Engineer , you'll be responsible for designing and implementing robust backend systems that power intelligent AI agents for Fortune 500 ... with AWS Bedrock to build sophisticated user interfaces and engineer enterprise-grade solutions using the Model Context Protocol...the forefront of agentic AI technology consulting. As a Senior Back End Engineer , you'll be responsible… more
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  • Runlayer (San Francisco, CA)
    …We're a well-funded early-stage team that built Zapier's AI platform. We're hiring a Senior Forward Deployed Engineer (US-EU time zones) to work directly with ... powerful as the tools it can access. Model Context Protocol (MCP) is emerging as the standard for connecting...and common patterns you identify. What We're Looking For Senior engineering expertise. 4+ years of software engineering experience… more
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  • Tubi Tv (San Francisco, CA)
    Senior Software Engineer (Content Platforms) About Tubi: Boldly built for every fandom, Tubi is a free streaming service that entertains over 100 million monthly ... must be willing to travel three days a week. What You'll Do: As a Senior Software Engineer , you will: Contribute to the design and implementation of distributed… more
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  • Amazon (San Francisco, CA)
    …who need specialized security solutions. Annapurna Labs, a division of AWS, is seeking a Senior Network Software Engineer to join the SW group and help redefine ... AWS cloud's networking future. Key job responsibilities As a Senior Network Software Engineer on the SRD team, you will develop and optimize the implementation… more
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  • Blockchain Works (San Francisco, CA)
    …use-case specific core features ie blockchain runtime, multi-chain support, protocol interoperability, consensus mechanism, gRPC, APIs, new smart contract scripting ... system, and numerous other protocols. As an engineer on the Analog team, you'll be redefining the...Experience in architecture and implementation of use case-specific network protocol or database is a plus. Benefits Highly competitive… more
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  • Recruiting From Scratch (San Francisco, CA)
    …the right fit for the company's culture and vision. Title of Role: Senior Software Engineer - Network Infrastructure Location: Remote (United States) Company ... , with exposure to Rust and Go Collaborate closely with a small, senior team of engineers solving challenging problems around performance, reliability, and security… more
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  • Amazon (San Francisco, CA)
    A leading cloud services provider in San Francisco is looking for a Senior Network Software Engineer to enhance their networking capabilities. Your role includes ... developing the Scalable Reliable Datagram (SRD) protocol and leading projects to ensure reliability across the network infrastructure. The ideal candidate will have… more
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  • Legends Labs, LLC (San Francisco, CA)
    … teams to focus on innovation and security while we focus on access. As a Senior Frontend Engineer at Legend Labs Inc. you'll help realize the vision by ... delivering high-end user experiences that scale across all our products. You'll also help shape the direction, design, and execution of future product experiences. What you'll do Lead long-term technical direction and vision for maintaining and scaling our… more
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  • Legends Labs, LLC (San Francisco, CA)
    … teams to focus on innovation and security while we focus on access. As a Senior iOS Engineer at Legend Labs Inc. you'll help realize the vision by delivering ... high-end user experiences that scale across all our products. You'll also help shape the direction, design, and execution of future product experiences. What you'll do You care about the details, deeply. Lead long-term technical direction and vision for… more
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  • Runlayer (San Francisco, CA)
    A technology company is seeking a Senior Forward Deployed Engineer to build and deploy custom Model Context Protocol (MCP) solutions for enterprise ... customers. You'll work closely with clients to understand their requirements, solve unique integration challenges, and directly contribute to the development and iteration of the MCP platform. The ideal candidate has over 4 years of software engineering… more
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  • Tools For Humanity Corporation (San Francisco, CA)
    …over 15 seasoned engineers who are central to the success of the World protocol . We tackle a unique and complex threat landscape that spans state-of-the‑art hardware ... mobile ecosystem. Our work is critical to enabling the protocol to scale to billions of users while upholding...and privacy. About the Opportunity As a Product Security Engineer , you will be a hands‑on technical leader responsible… more
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