Design, document, and implement quality backend architectures, services, and tooling using the CosmosSDK / CometBFT stack.
Develop high-quality, performant, modern, clean, and readable code within tight deadlines while working collaboratively with engineering, design, and product teams.
Own the development and maintenance of the project from ideation to deployment, contributing ideas that add value to the product roadmap and company goals.
Deliver backend services that coordinate fast, fault-tolerant cross-chain transactions across multiple blockchain ecosystems
Improve system reliability and resilience under adversarial conditions to strengthen protocol trust and uptime
Reduce transaction processing latency through optimizations in RPC usage and system performance
Chainlink is the industry-standard oracle platform bringing the capital markets onchain and powering the majority of decentralized finance (DeFi). They have enabled tens of trillions in transaction value and now secures the vast majority of DeFi.
2+ years working in Crypto/Blockchain using Rust or Go or C++.
Strong software development background and knowledge of common algorithms and data structures.
Strong knowledge of writing efficient and safe code.
Trust Wallet is the leading non-custodial cryptocurrency wallet, trusted by over 200 million people worldwide. They give individuals the freedom to own their assets and confidently participate in the future economy. They are a truly global organization, with international teams and a flat organizational structure.
Integrate Kraken's systems with exciting new blockchains to enable crypto operations.
Design and implement low-latency, high-availability, super secure applications and data protection systems.
Own, develop and maintain existing crypto services while ensuring the safety and security of all client funds.
Kraken is a mission-focused cryptocurrency exchange building premium crypto products like Kraken Pro, Desktop, Wallet, and Kraken Futures for traders and institutions. The company is fully remote with employees in over 70 countries, and hires strictly based on merit while celebrating diverse backgrounds.
Design, build, and maintain scalable backend services powering AI infrastructure and inference systems.
Develop and optimize distributed systems with a focus on performance, reliability, and low-latency execution.
Contribute to the evolution of platform architecture, ensuring scalability for growing workloads and enterprise use cases.
They are a company using an AI-powered matching process to quickly, objectively, and fairly review applications against a role's core requirements. They identify the top-fitting candidates, and this shortlist is then shared directly with the hiring company.
Build and maintain Zallet (our CLI wallet) and Zcash’s Rust-based core libraries
Implement protocol features based on existing specifications and guidance
Developing and maintaining specifications to enhance, document, and support security analysis of the Zcash protocol, either led by ZODL or in collaboration with third-party developers.
ZODL (Zcash Open Development Lab) is building the software necessary to onboard billions of users to Zcash. Created by the original inventors and developers of the Zcash protocol, we deliver world-class UX for ZEC on top of our core protocol work.
Build security tools and controls that are deployed across the company
Design, develop, and deploy new core security features to public Chainlink products like the Chainlink core node
Define new processes and systems that make attacks on our networks hard to execute and easy to detect
Chainlink Labs is the industry-standard oracle platform bringing the capital markets onchain and powering the majority of decentralized finance (DeFi). Many of the world’s largest financial services institutions have also adopted Chainlink’s standards and infrastructure.
Design and implement high-throughput, low-latency services and libraries in Rust and TypeScript
Manage the full lifecycle of on-chain wallets across blockchains - from derivation to ownership, at the scale of a global exchange
Build and maintain the systems that ensure liquidity for clients while maintaining strict compliance with regulatory requirements
Kraken is a mission-focused company rooted in crypto values, aiming to accelerate the global adoption of crypto for financial freedom and inclusion. As a fully remote company with Krakenites in 70+ countries, they develop premium crypto products for experienced traders, institutions, and newcomers.
Design, develop, and maintain scalable, robust backend features and APIs using modern frameworks.
Ensure high performance and reliability across our distributed systems.
Contribute to systems powering authentication, billing, AI tooling, observability, connectors, and developer experience.
Mistral AI democratizes AI through high-performance, optimized, open-source and cutting-edge models, products, and solutions, with a comprehensive AI platform designed to meet enterprise needs. They are a dynamic and collaborative team passionate about AI, with a diverse workforce thriving in competitive environments and committed to driving innovation; their teams are distributed between France, USA, UK, Germany, and Singapore.
Design, build, and maintain scalable backend services and APIs for compliance, data, and payment products.
Collaborate cross-functionally to translate business needs into technical solutions and take ownership of end-to-end projects.
Ensure code quality, reliability, and security through best practices and mentor junior engineers to foster technical excellence.
Finalis builds core infrastructure for private capital markets. The company offers a 100% remote, diverse, and inclusive environment with a focus on career growth through structured programs.
Develop and maintain infrastructure that powers digital asset custody, trading, staking, and settlement for enterprise financial institutions.
Contribute to virtual accounting layers, API integrations, and multi-tenant platform architectures with guidance from senior engineers.
Write clear, concise, tested code and participate in code reviews to improve engineering practices.
Anchorage Digital is building the world’s most advanced digital asset platform for institutions to participate in crypto. They are a diverse team of more than 600 members, united in building the future of finance by providing the foundation upon which value moves safely in the new global economy.
Design and build distributed systems in Go that help customers send timely, relevant messages at scale
Collaborate across teams to debug issues and deliver reliable solutions
Own problems end to end - from architecture and schema design to testing, deployment, and monitoring
Customer.io's platform is used by over 8,000 companies to send billions of messages daily, automating communication with real-time behavioral data. They value empathy, transparency, and responsibility, fostering an inclusive team culture and using their influence to increase inclusion and equity within the tech industry.
Design and build distributed systems in Go that help customers send timely, relevant messages at scale
Collaborate across teams to debug issues and deliver reliable solutions
Own problems end to end - from architecture and schema design to testing, deployment, and monitoring
Customer.io's platform is used by over 8,000 companies – from scrappy startups to global brands – to send billions of emails, push notifications, in-app messages, and SMS every day. Under the hood: Go, React, Ember and AI help them ship fast and scale with confidence.
Design and build core systems for our new product from scratch
Build low-latency, high-reliability services that interact directly with Solana's transaction and block building pipeline
Implement security at every layer, from transaction signing to user data protection
Jito builds the Market Layer of Solana, the infrastructure that powers real markets on-chain. They build foundational network infrastructure and are a small, profitable company with product-market fit where every team member drives significant technical decisions and shapes our product roadmap.
Design, build, and maintain distributed backend systems using Go, AWS, Kafka, Postgres, and DynamoDB.
Collaborate cross-functionally with product managers, designers, and enterprise partners to define user journeys, performance goals, and success metrics.
Own critical parts of Connectly’s platform infrastructure — from messaging orchestration to data pipelines and API integrations.
Connectly is building the future of conversational commerce in Latin America with a focus on Whatsapp, offering a 360 engagement platform for retailers. It's a VC-backed Series B startup with a world-class team from top Silicon Valley companies, operating as a hybrid company but promoting a remote-first culture.
Develop deep expertise in blockchain protocols and on-chain operations.
Research and synthesize protocol information into actionable insights.
Translate complex technical concepts into clear documentation for diverse audiences.
Anchorage Digital provides a secure digital asset platform for institutions, offering custody, staking, and trading services. It's a diverse team of over 600 members committed to building the future of finance and fostering an inclusive workplace.
Build and evolve backend infrastructure for an agentic AI observability platform using Node.js and Go
Collaborate with AI engineers to productionize and optimize agent workflows for reliability and performance
Design and implement secure execution environments for untrusted or dynamically generated code
Jobgether utilizes an AI-powered matching process to ensure quick, objective, and fair application reviews. They connect candidates with partner companies, streamlining the hiring process and providing opportunities in various industries.
Design, implement, and maintain the core Walrus decentralized storage network, including storage nodes, client software, and toolchains.
Work with research, cryptography, and security teams to keep the Walrus network secure, performant, and reliable.
Optimize existing systems for scalability, efficiency, and reliability.
Mysten Labs creates foundational infrastructure to accelerate the adoption of decentralized, blockchain-based protocols. It is a remote-first, world-class team backed by top Silicon Valley venture funds, focused on bringing the next billion users to web3.
Build and scale backend services for member experiences, clinical workflows, and internal operations with a focus on reliability and performance.
Provide technical leadership across teams through system design, pragmatic decision-making, and clear communication to unblock progress.
Partner with Product and Design to translate business needs into technical plans and contribute to infrastructure, observability, and delivery practices.
Parsley Health builds an advanced, data-driven functional healthcare platform focused on root-cause treatment of the whole person. The company is the largest functional healthcare provider in the US, with a culture emphasizing speed, ownership, accountability, and collaborative excellence.
Design, develop, and maintain backend services using Go
Contribute to development tasks using Python where required
Write clean, maintainable, and well-structured code following engineering best practices
Smart Working believes your job should feel right every day and connects skilled professionals with global teams for full-time, long-term roles. It's a high-rated workplace on Glassdoor that values integrity, excellence, and ambition.
Architect the algorithms, execution strategies, and infrastructure that power solver competition, quote aggregation, and intent-ready execution workflows.
Lead deep code and design reviews, make high-impact architectural decisions, and uphold the highest engineering standards.
Work with product, research, and ecosystem partners to align Solver capabilities with the NEAR Intents roadmap.
Defuse Labs develops NEAR Intents to enable seamless cross-chain interactions in an automated world — connecting AI, services, and financial applications. With expertise in AI, cryptography, and decentralized finance, our team is redefining how intelligent agents interact across blockchain networks.