Senior Blockchain Security Engineer (Solidity / Rust / Golang) - Remote

About NextLink LabsNextLink Labs is an innovative technology firm dedicated to empowering businesses in building, scaling, and securing their software applications. We firmly believe that effective and secure technology is crucial for the success of companies, teams, and products. Our commitment is to help our clients excel in their respective sectors.As a f…

About the RoleJoin our mission-driven team as a Senior Rust Software Engineer, where you will develop robust software systems designed to enhance human-machine-AI collaboration and foster autonomous capabilities for military operators operating on the tactical edge.In this position, you will architect and create high-performance systems in Rust that function effectively in constrained and contested environments. Your contributions will span the entire system lifecycle, from architecture and hardware integration to simulation, testing, and field deployment.Work collaboratively with engineers, researchers, and operators to design systems that integrate sensing, autonomy, and decision-making support, all while ensuring traceable, deterministic builds and reliable deployments in mission-critical scenarios.This opportunity is perfect for engineers passionate about systems programming, autonomy, and tackling real-world challenges related to national security missions.

Join our innovative team at ditto as a Senior Software Engineer specializing in Rust. In this fully remote role, you will engage in developing high-performance applications, contribute to system architecture, and collaborate with cross-functional teams to deliver exceptional products.

Join us as a Senior Rust Developer and play a pivotal role in advancing computational biology. Your mission will be to create scalable, open-source workflow execution engines tailored for scientists, enabling them to efficiently manage extensive computational tasks.General InformationLocation: Remote, open to candidates in GMT-8 to GMT+5 time zones (excluding China, Australia, and similar regions).Time Overlap: 3-4 hours with Chicago/Texas (US Central Time).Contract Duration: 6 months with a potential for extension.Project OverviewAs part of the Sprocket team, you will help develop a Rust-based open workflow execution engine. This system allows scientists, who may not be well-versed in the complexities of large-scale computation, to articulate straightforward workflow descriptions using the Workflow Description Language.

Join our innovative team at cow-dao as a Senior Backend Engineer specializing in Rust. In this fully remote role, you will be integral in designing and implementing robust backend systems that scale efficiently. You will collaborate with cross-functional teams to enhance our platform's capabilities and performance.

About Us:Syndica is at the forefront of Web3, providing essential applications with robust, enterprise-level RPC infrastructure and developer tools specifically designed for the Solana ecosystem. By joining our innovative team, you'll be challenged technically and surrounded by individuals who are passionate about revolutionizing infrastructure technologies.We are proudly supported by visionary partners and investors, including Chamath Palihapitiya of Social Capital, Steve Jang of Kindred Ventures, Joe McCann of Asymmetric, Jump Crypto, Coinbase Ventures, Solana Ventures, Circle Ventures, and many more.About You:You are a skilled engineer who excels in a collaborative and dynamic environment.You have a keen interest in contributing to the decentralization of blockchain technologies.You possess 3+ years of relevant professional experience with Rust (experience in memory-managed languages such as Zig/C/C++ is a bonus but not mandatory).You hold a Bachelor’s degree in Computer Science or have equivalent experience.About the Role:In your role as a Senior Engineer, you will be instrumental in designing and developing a high-performance Solana validator client from the ground up.You will collaborate with a team dedicated to building a new open-source Solana validator client, Sig, utilizing the Zig programming language. For more technical insights into the project, please refer to the original announcement here.Your primary responsibilities will include understanding the Agave validator implementation codebase, which is written in Rust, and translating, optimizing, and enhancing this implementation in Zig (check out the current work here!).Key Responsibilities:Understanding and Communicating Rust Code: Accurately mapping and communicating the functionality of the existing Rust client.Writing High-Quality Code in Zig: Translating Rust code into Zig, ensuring performance and readability.... (additional responsibilities)

Join Us in Shaping the Future of CryptoAt Kraken, our team of exceptional professionals is driven by a shared commitment to harnessing the power of crypto and blockchain technology.What Sets Us Apart?Kraken is dedicated to a mission that resonates with our core crypto values. As a member of our team, you will play a vital role in advancing global crypto adoption, empowering individuals to achieve financial freedom and inclusion. Over the past decade, our unwavering focus on our mission and crypto principles has attracted some of the brightest minds in the crypto industry.Before you submit your application, we encourage you to explore our Kraken Culture page to gain insights into our values, culture, and mission. We also expect candidates to become familiar with the Kraken app. Discover how to set up your Kraken account here.As a fully remote organization, our Krakenites span over 70 countries and converse in more than 50 languages. Our pioneering team develops cutting-edge crypto products designed for seasoned traders, institutions, and newcomers alike. Kraken is committed to providing top-tier security, crypto education, and world-class client support through our offerings like Kraken Pro, Desktop, Wallet, and Kraken Futures.Become a Krakenite and help shape the future of crypto!

Join Zscaler as a Senior Rust Developer and become a vital part of our innovative team dedicated to enhancing cloud security solutions. You will work on cutting-edge technology using Rust to build high-performance applications that cater to our global clientele.As a key player in our development team, you will be responsible for designing, implementing, and maintaining scalable software systems. Collaborate with cross-functional teams to translate business requirements into technical specifications, ensuring high-quality deliverables.

Mozilla Corporation has a 25-year history of building technology that serves people, not just profits. Backed by a non-profit mission, Mozilla is best known for Firefox, a privacy-focused browser used by over 225 million people each month. The team continues to create products that put user needs and privacy at the center. Role overview The Ads Engineering team develops the foundation for ethical, privacy-first advertising across Mozilla’s portfolio. The Senior Rust Software Engineer will build scalable, client-side ad components using Rust and Python. This work supports privacy-respecting advertising in products like Firefox, Pocket, and MDN. What you will do Design and implement client-side ad systems in Rust and Python Maintain seamless ad experiences that protect user privacy Collaborate with product teams to integrate advertising solutions across Mozilla products Act as a subject matter expert in advertising technology within Mozilla Help improve and refine Mozilla’s advertising systems over time Location This position is fully remote and open to candidates based in the United States.

Are you enthusiastic about crafting secure, high-performance, and dependable infrastructure? Do you excel at troubleshooting and resolving complex challenges in systems designed for the most demanding GraphQL workloads worldwide? If so, we want to speak with you about the opportunity to contribute to the operation and evolution of next-generation GraphQL runtime infrastructure.The GraphOS organization is responsible for a critical tier of Apollo's platform — the foundational engine that makes GraphOS a highly performant, secure, and reliable self-service GraphQL platform. As an integral member of the GraphOS North America team, you will play a pivotal role in this mission by managing the Router and empowering engineering teams to accelerate their development processes and enhance user experiences.Key ResponsibilitiesDevelop, test, and maintain fault-tolerant infrastructure for GraphQL runtime platforms primarily in idiomatic Rust, ensuring top-tier security, performance, and reliability.Diagnose and resolve escalations from enterprise clients operating some of the largest GraphQL deployments globally, with hundreds of subgraphs handling trillions of requests monthly.Manage and enhance durable, stable public APIs utilized by the most demanding GraphQL workloads.Engage directly with users, whether community members or enterprise customers, to understand their needs, debug issues, and provide feedback for platform evolution.Design scalable and observable systems that seamlessly integrate into various customer infrastructure stacks, utilizing self-driven research and real-world insights.Collaborate with engineers across teams through supportive communication and constructive code reviews to deliver cohesive solutions.Guide and mentor teammates in architecting and crafting idiomatic Rust code while considering the broader implications of changes across domains.Lead architectural discussions and cross-team initiatives, driving impactful changes as a technical leader or coaching others to step into leadership roles.Create comprehensive technical designs and documentation that address cost efficiency, security, and observability.Participate in on-call rotations as a fundamental part of the role, ensuring the reliability of mission-critical systems.

Your Role:Design, build, and uphold infrastructure tools and services using Rust.Take ownership of CI/CD pipelines, monitoring systems, and deployment automation.Work collaboratively with engineering and security teams to guarantee scalable and resilient systems.Enhance infrastructure for optimal performance, cost efficiency, and security.Contribute to improving internal developer experiences and workflows.

Anduril Industries is at the forefront of defense technology, dedicated to revolutionizing military capabilities for the U.S. and its allies through innovative solutions. By merging the expertise of the most advanced companies of the 21st century with the defense sector, Anduril is redefining how military systems are conceptualized, developed, and implemented. Our systems are driven by Lattice OS, an AI-enhanced operating system that integrates numerous data streams into a real-time, 3D command and control center. In this era of strategic competition, Anduril is steadfast in its mission to deliver cutting-edge autonomy, AI, computer vision, sensor fusion, and networking technologies to the military at an accelerated pace.ABOUT THE TEAMAt Anduril, our Software Engineers are tasked with tackling complex, real-world challenges through sophisticated algorithms and intelligent software integration. Working within small, dynamic teams, we continuously push the limits of technology to create advanced solutions with significant mission-critical applications. Our commitment extends beyond theoretical research or experimental proofs; we gauge our success by the tangible impact of our deployed technologies. Echoing Arthur C. Clarke's sentiment — 'Any sufficiently advanced technology is indistinguishable from magic' — we aspire to achieve revolutionary outcomes in target tracking, state estimation, and situational awareness. We invite exceptionally skilled technologists to join us in redefining the future of defense technology.

About Us:At Wynd Labs, we are pioneers in constructing infrastructure that channels vast amounts of web data to organizations that are shaping the future of artificial intelligence. Our innovative team is the backbone of Grass, a bandwidth-sharing network that empowers us to operate a large-scale distributed crawler, granting us unique access to high-quality public web data on a global scale. Additionally, we have developed sophisticated pipelines for ingesting, segmenting, and annotating billions of videos, transcripts, and audio files, facilitating dataset creation for cutting-edge laboratories.We are a dynamic, technical team that thrives on speed and efficiency. With no bureaucratic delays, we are a collective of builders striving to broaden the horizons of open web data and AI.

Join us at fuku as we strive to create a robust and secure software foundation that empowers developers everywhere. Our mission is to revolutionize the way software is built, maintained, and released, making the process seamless and predictable. As a Lead Rust Engineer, you will be instrumental in shaping our codebase and fostering a positive company culture.Tech Stack:- Rust (CLI tooling)- TypeScript (Cloud frontend)- Go (backend services)- Google Cloud Platform (GCP)Key Responsibilities:- Develop and oversee features across CLI, backend, and frontend components.- Take full ownership of projects from initial concept through to deployment.- Contribute to establishing scalable engineering best practices.- Collaborate closely with product management to align on goals and deliverables.

Shape the Future of CryptocurrencyJoin our exceptional team at Kraken, where we are driven by a shared passion for uncovering the full potential of cryptocurrency and blockchain technology.What Sets Us Apart?Kraken is a purpose-driven organization deeply rooted in cryptocurrency values. As a member of our team, you'll play a pivotal role in our mission to boost global cryptocurrency adoption, enabling financial freedom and inclusivity for all. Over the past decade, our unwavering commitment to our mission and core values has attracted some of the brightest minds in the crypto space.Before applying, we encourage you to visit our Kraken Culture page to better understand our values and mission. We also invite candidates to familiarize themselves with the Kraken platform, and you can learn how to create a Kraken account here.As a fully remote organization, we proudly have Krakenites in over 70 countries, speaking more than 50 languages. Our team members are industry innovators, developing top-tier cryptocurrency products for seasoned traders, institutions, and newcomers alike. Kraken is dedicated to leading industry security, crypto education, and exceptional client support through our innovative products such as Kraken Pro, Desktop, Wallet, and Kraken Futures.Join Kraken and Help Shape the Future of Cryptocurrency!Proof of WorkThe TeamOur Platform and Core Engineering teams are responsible for building robust systems that ensure Kraken's security, resilience, and scalability. Their contributions are measured not by customer-facing features but by the strength and reliability of our infrastructure.

At Discord, we connect over 200 million users each month, and gaming is at the heart of what we do. With over 90% of our community engaging in gaming, they spend a staggering 1.5 billion hours monthly across thousands of unique titles. Our mission is to enhance the gaming experience, making it more enjoyable and seamless for everyone to chat and connect, whether before, during, or after they play.We are seeking a Senior Software Engineer who will be instrumental in developing high-performance, cross-platform client software that serves our vast user base. You will be responsible for crafting core libraries that operate across Windows, Mac, Linux, Android, and iOS, utilizing platform-specific APIs to ensure optimal user experiences.As a vital member of our Audio/Video Client team, you will address complex performance challenges, design scalable systems for diverse hardware configurations, and lay the groundwork for real-time interactions that cater to millions of concurrent users.

Join our innovative team at Code Metal as a Senior Software Engineer specializing in Rust and Python. We are at the forefront of creating cutting-edge AI-powered transpilation and code generation tools that seamlessly connect algorithm development with embedded deployment. By utilizing the latest advancements in Generative AI, Static Analysis, and Formal Verification, you will play a crucial role in shaping the future of software engineering.This role transcends traditional backend responsibilities; we are searching for engineers with a holistic approach to system design and development. You will engage with user needs and UX, delivering resilient and scalable solutions across the entire technology stack.

Your Role:Take ownership of essential components within Backpack’s backend infrastructure crafted in Rust.Design and execute low-level systems with a strong focus on safety and performance.Work collaboratively with product, infrastructure, and security teams to develop robust and reliable systems.Proactively identify bottlenecks, security vulnerabilities, and opportunities for performance enhancement.Qualifications:A minimum of 3 years of experience in developing production-level applications using Rust.Comprehensive understanding of systems programming, including memory management, concurrency, and networking.Proven experience in building high-performance services and tools from the ground up.A keen eye for code quality, performance, and security considerations.Fluency in English is required.What We Offer:Generous ownership stake in the company—ideal for those who think like owners.A dynamic, fast-paced work environment.Flexible working hours and a hybrid work schedule.Location:Our offices are located in Chicago, Dubai, and Tokyo. You are welcome to work from any of these locations, and we will assist with visa arrangements. Remote work is also acceptable for the right candidate.

Join Keeper Security as a Senior Client Software Engineer!We are seeking a talented Senior Client Software Engineer to enhance our engineering team. This position is fully remote, with options for a hybrid schedule available for candidates in the Chicago, IL or El Dorado Hills, CA metro areas.Keeper Security is a trusted name in cybersecurity, safeguarding millions of individuals and thousands of organizations worldwide. Our software is available in 23 languages and sold in over 150 countries. Be part of one of the fastest-growing cybersecurity companies and contribute to creating secure, enterprise-ready client experiences that promote scalable deployment, exceptional usability, and seamless device management.About Keeper SecurityKeeper Security is a leading cybersecurity software company, protecting organizations and individuals across the globe. We specialize in zero-knowledge and zero-trust security solutions tailored for any IT environment. Our flagship product, KeeperPAM®, is an AI-driven, cloud-native platform that secures users, devices, and infrastructures against cyber threats. Recognized in the Gartner Magic Quadrant for Privileged Access Management (PAM), Keeper provides robust security for passwords, secrets, remote connections, and endpoints through role-based policies, least privilege, and just-in-time access. To learn more about our innovative approach, visit KeeperSecurity.com.Role OverviewIn this role, you will focus on developing client-side applications, overseeing installation workflows, enhancing the end-user interface, and supporting enterprise deployment. The ideal candidate will possess extensive experience in C# and Rust, and a solid background in building scalable desktop or endpoint client applications managed via enterprise deployment tools and MDM platforms.Key ResponsibilitiesDesign, develop, and maintain client-side applications and features for Keeper's desktop and endpoint experiences.Enhance installation, configuration, upgrade, and update workflows for client software.Develop user-facing functionality and administrative controls using C# and Rust.Support enterprise deployment scenarios utilizing MDMs, endpoint management, and software distribution tools.Collaborate with product, support, and engineering teams to enhance usability, reliability, and client performance.Implement client-side workflows for enrollment, setup, policy application, status visibility, and user notifications.Troubleshoot application issues and provide resolutions.