today's and tomorrow's financial systems. You'll be part of our multidisciplinary engineering team, working on our Corda Distributed Ledger Technology, powering private enterprises, networks, and the Solana public blockchain. The team focuses on integrating Corda with the high-performance Solana public blockchain to enable interoperability among multiple Corda private networks and between Corda and Solana. You will … bring engineering expertise and experience in on-chain programming of Solana in Rust. This project accesses Solana from server infrastructure written in Kotlin and does not include a web UI or Typescript elements. Responsibilities Design, implement, and test Solana on-chain programs written in Rust. Apply your Solana on-chain knowledge, best practices, and experience to the architecture, design, and … implementation of the Corda/Solana integration. Leverage the Solana ecosystem and community to accelerate implementation and delivery. Contribute to the technical direction of Solana engineering at R3. Mentor and assist other engineers, helping them understand your approach and develop skills in the Solana on-chain ecosystem. Learn, understand, and develop expertise in Corda, R3's private DLT product. Make More ❯
of payment and benefit from instant payouts & low fees Integrate the Helio Checkout Widget in your website with ease, or add our e-commerce plugin for WooCommerce or the Solana Pay plug-in for Shopify Launch a Pay Link in a few clicks for NFT pre-sales , gated payments , subscriptions , Discord memberships , video paywalling and more Use Helio Wallet to More ❯
work required by traders and quants. Work closely with other teams to automate trading, reconcile, and analytics workflows. Requirements Minimum 3 years of DeFi development experience working with EVM, Solana, and other blockchain ecosystems. Minimum 3 years experience using JavaScript/TypeScript, NodeJS, and relevant SDKs (e.g. web3.js , ethers.js ). Deep understanding of Smart Contracts, AMM, Farming, etc. Experience with More ❯
crypto economy surges past +$30b, Helio helps merchants connect with digital natives through seamless crypto checkout solutions and provides custom onchain trading and payment infrastructure for apps including Solana Pay plugin for Shopify; Magic Eden pre-sales , and DEX Screener's token launchpad called Moonshot , amongst others. Who's behind Helio? We're an experienced team of builders backed More ❯
Language: English (Advanced proficiency) Nice-to-Have Skills Experience with fintech platforms or blockchain-based UIs Proficiency in JavaScript/TypeScript frameworks (e.g., Angular, Vue.js) Exposure to Rust or Solana Previous work on API-driven front-ends or complex UI/UX projects Additional Requirements Eligibility: Candidates must have the right to live and work in the UK. Work Arrangement More ❯
remote-first, async team. You take initiative, solve problems quickly, and care about product quality. Bonus Points Professional experience with Go. Familiarity with multi-chain ecosystems (EVM chains, L2s, Solana, etc.). Strong grasp of API development: REST, token-based auth, error handling, etc. Experience building or contributing to Web3 projects (personal or commercial). Enjoy helping others succeed-whether More ❯
Junior-Mid Frontend Engineer with a strong interest in Web3 technologies to join our team. In this role, you'll build responsive, high-performance user interfaces that interact with Solana-based smart contracts and decentralized applications (dApps). You'll work closely with our product, design, and blockchain teams to deliver seamless user experiences in a fast-moving and innovative … generation of Web3 products, we'd love to meet you. Requirements Min. 3 years experience on web2 frontend development + min. 1 years experience on Web3 Frontend Development on Solana ecosystem (Wallet Connections ,Solana Smart Contract integrations to the frontend) Understanding of how Solana and blockchain work in high level is essential like RPC Nodes, Wallet Providers, transaction signing from … frontend using wallet providers (phantomwallet or etc) Understanding PDA, Solana Accounts & Methods. Good understanding of Server/Client component differences Good understanding of Rendering Techniques on Nextjs like Partial Prerendering (Dynamicrendering, static rendering, suspense layers or etc), SSR (Server side rendering), CSR(Client Side Rendering), SSG (Static Site Generation), revalidations or etc. Knowledge on Build time and Runtime optimizations Familiar More ❯
are building the on-ramp for the next trillion dollars of assets to move on-chain, bridging traditional finance (TradFi) and decentralized finance (DeFi). We are launching a Solana-native protocol designed to bring real-world assets into on-chain capital markets, starting by integrating with our existing Corda-based asset networks. The Role R3 is seeking a driven More ❯
on-ramp for the next trillion dollars of assets to move on-chain, bridging the worlds of traditional finance (TradFi) and decentralized finance (DeFi). We are launching a Solana-native protocol purpose-built to bring real-world assets into on-chain capital markets, starting by integrating with our existing Corda-based asset networks. The Role R3 is looking for More ❯
solution design and delivery for our clients and partners. You'll serve as a bridge between product, engineering, and enterprise clients, helping define and implement RWA tokenization strategies on Solana and adjacent ecosystems. While you'll work within a Solana-first environment, most of your contributions will be in architectural design, APIs, smart contract integrations, data pipelines, and compliance flows … rather than low-level Rust development (though familiarity is a plus). What you'll do: Design tokenization architectures for RWAs on Solana as well as custody, compliance, and lifecycle flows Interface with enterprise clients and partners to understand technical requirements Develop integration blueprints across APIs, smart contracts (Solana + SPL), oracles, and custodians Collaborate with protocol developers, external front … end and back-end teams to deliver E2E solutions Contribute to reference architectures and internal best practices for compliant asset issuance Stay up to date on Solana improvement proposals, DeFi infrastructure, and regulatory developments You might be a fit if you have: 8+ years in a technical architecture or solution engineering role Hands-on experience with Web3 tools: wallets, APIs More ❯
world financial system. You'll be part of our multidisciplinary engineering team, where you will build and evolve our Corda Distributed Ledger Technology, powering private enterprises, networks and the Solana public blockchain. The team is focussed on building out both: -The next evolution of the Java Virtual Machine-based Corda DLT platform, designed to deliver greater value, performance, and resilience … for both new and existing financial enterprises. -Integration of Corda with the high-performance Solana public blockchain to enable interoperability both among multiple Corda private networks and between Corda and the Solana public network. You will bring an enterprise software engineering, design and architecture background to bear on the exciting and fast world of Private Distributed Ledgers and Public Blockchain … You will design and implement complex software solutions, written primarily in Kotlin, within the Corda server JVM codebase and/or work with the integration of Corda with the Solana public blockchain in Rust Assist other teams in understanding how to best utilize the software you develop. Collaborate with fellow engineers within the team and organisation by developing technical plans More ❯
such as Ether.js, Web3.js, and Wagmi. Design and build robust backend systems using Rust, Go, or Node.js. Collaborate with smart contract engineers and contribute to Solidity (EVM) and Rust (Solana) smart contract development. Work closely with the UX design team to bring intuitive interfaces to life. Deploy and manage cloud infrastructure on AWS; use AWS CDK (TypeScript) for infrastructure-as … Solid experience with Web3 development libraries: Ether.js, Web3.js, Wagmi, etc. Hands-on experience deploying and interacting with Solidity smart contracts (EVM-based). Familiarity with Rust smart contracts for Solana is a big plus. Proven experience with AWS infrastructure (must-have). Experience with AWS CDK (TypeScript) for IaC (nice to have). Strong problem-solving abilities, critical thinking, and More ❯
premier exchanges, and groundbreaking startups. As part of the Flight Group, we operate at the forefront of innovation in marketing. Our clients include industry giants such as Coinbase, Tezos, Solana, Fuel Network, and Fabric Ventures. Flight3 proudly organises and manages the UK's leading Web3 event. More ❯
support over 6,000 merchants, developers, and millions of buyers with seamless crypto checkout for e-commerce, subscriptions, trading, and more. Our developer APIs power on-chain workflows across Solana, EVM & Bitcoin. With crypto surpassing $3T in value, we connect businesses to millions of digital natives via Helio branded checkouts as well as white labelled solutions including Solana Pay for More ❯
team and help build scalable, high-performance backend systems. You will be responsible for designing and implementing RESTful APIs, working with microservices and AWS Lambda functions, and integrating with Solana and Ethereum blockchains. This role requires strong problem-solving skills, a deep understanding of backend development, and the ability to collaborate closely with frontend engineers, DevOps, and the product team. … automate manual processes Work closely with the product team, frontend engineers, and DevOps to deliver high-quality features Monitor production backend systems to ensure stability and performance Integrate with Solana and Ethereum blockchains (Solana experience is highly important) Write unit and integration tests to ensure code quality and reliability Take ownership of the product. Build a high-quality product that … Frameworks & Tools: Fiber, Express, Gin, Docker, AWS Amplify (plus) AWS Services: Lambda, ECS, ECR, RDS, CloudWatch, SQS, SNS, SES, Cognito, Redis, S3, CloudFront Testing: Jest, wire-mock, localstack Blockchain: Solana (Helius, Anchor framework, SPL token, Token 2022), Ethereum Monitoring: DataDog, CloudWatch Requirements 4+ years of backend development experience. Production experience with GoLang (preferred) and NodeJS. Experience building RESTful APIs Hands More ❯
support over 6,000 merchants, developers, and millions of buyers with seamless crypto checkout for e-commerce, subscriptions, trading, and more. Our developer APIs power on-chain workflows across Solana, EVM & Bitcoin. With crypto surpassing $3T in value, we connect businesses to millions of digital natives via Helio branded checkouts as well as white labelled solutions including Solana Pay for … role if you have: 5+ years of software engineering experience in backend teams primarily using Rust and Node/Node.js, TS & JS in a full stack environment Fluency in Solana Rust smart contracts with proven experience and projects 4+ years of experience in blockchain development. Practical experience deploying smart contracts on the mainnets of major blockchains Contribution to crypto projects More ❯
support over 6,000 merchants, developers, and millions of buyers with seamless crypto checkout for e-commerce, subscriptions, trading, and more. Our developer APIs power on-chain workflows across Solana, EVM & Bitcoin. With crypto surpassing $3T in value, we connect businesses to millions of digital natives via Helio branded checkouts as well as white labelled solutions including Solana Pay for … role if you have: 5+ years of software engineering experience in backend teams primarily using Rust and Node/Node.js, TS & JS in a full stack environment Fluency in Solana Rust smart contracts with proven experience and projects 4+ years of experience in blockchain development. Practical experience deploying smart contracts on the mainnets of major blockchains Contribution to crypto projects More ❯
leveraging a comprehensive understanding of the blockchain landscape. Preferred Qualifications Active open-source contributions in core protocol engineering (such as Firedancer, Reth, Lighthouse, Geth, ). Direct involvement in the Solana ecosystem, with contributions to Solana's runtime, scheduler, or other core systems. Active engagement with the blockchain security research community, evidenced by contributions to open-source projects, publications, or presentations More ❯
two Senior Back-End Blockchain Developers to join a UK-based B2B trading platform leveraging blockchain technology. You will develop and maintain the platform's back-end, focusing on Solana/Rust for blockchain integration, platform security, business logic, and database management. This is a full-time, 12-month contract role with a preference for hybrid work in the UK. … Remuneration: £7,500-£9,000 per month (£90,000-£108,000 per year) Remuneration Frequency: Monthly Country of Resource: United Kingdom Responsibilities Build and maintain back-end systems, including Solana/Rust programs for blockchain integration. Implement secure business logic, platform security, and database management. Collaborate with front-end and product teams to support fintech and blockchain functionality. Required Skills … and Experience Solana: Minimum 4 years of experience Rust: Minimum 4 years of experience API Integration: Minimum 6 years of experience Blockchain: Minimum 6 years of experience Software Development: 10+ years of professional experience Platform Security and Databases: 7-10+ years of expertise Language: English (Advanced proficiency) Nice-to-Have Skills Experience with DeFi Blockchain Proficiency in Node.js or More ❯
using available Web3 infrastructure (e.g., SPL tokens, PDAs, custody APIs, identity services). Project Management: Define and manage project roadmaps, delivery milestones, resource management. Active Web3 Fluency: Understand how Solana primitives work (e.g., transactions, anchor framework, PDAs), and how to frame these capabilities for non-technical stakeholders, keeping up to date with latest developments. Risk & Compliance Awareness: Ensuring delivery plans … or hybrid) - nice to have A proactive and outcome-driven mindset - comfortable leading under ambiguity Prior experience delivering blockchain-based solutions in financial services or tokenization contexts Familiarity with Solana Understanding of smart contract audit processes, secure key management, and regulatory frameworks (e.g., MiCA, FCA sandbox) Familiarity with tools like JIRA, Notion, GitHub, and Web3 dev tooling Why join R3 More ❯
still small ( What You'll Work On End-to-end product features: TypeScript/React/Next.js front-ends that feel instant and delightful. Smart-contract & program logic on Solana (Anchor/Rust). Green-field architecture decisions: infra, CI/CD, observability, security, performance. Optionally: mobile surfaces in React Native and rapid-prototyping in Figma. You'll pair directly … coding copilots (Cursor, Claude Code, etc.)/prompt engineering in daily workflow. Strong communication-clear PRs, thoughtful architecture docs, async-friendly mindset. Nice-to-Haves Anchor-framework chops on Solana mainnet. React Native or Expo for mobile. Pixel-perfect UI/motion design streak (Figma, CSS-in-JS, Tailwind). Prior startup or open-source maintainer experience. Why Join Them More ❯
Location San Francisco, CA Employment Type Full time Location Type Hybrid Department Product About Sky Mavis Sky Mavis is building the future of gaming. We're the creators of Axie Infinity, the most successful Web3 game ever, and Ronin, a More ❯
the gap between TradFi (Traditional Finance) and DeFi (Decentralised Finance). As part of our exciting journey, we are integrating our Corda Distributed Ledger Technology with the high-performance Solana blockchain to create seamless interoperability between private Corda networks and the Solana public blockchain. This project is a key part of our broader mission to empower enterprises, financial institutions, and More ❯
the on-ramp for the next trillion dollars of assets to move onchain, bridging the worlds of traditional finance (TradFi) and decentralized finance (DeFi). We are launching a Solana-native protocol purpose-built to bring real-world assets into onchain capital markets, starting by integrating with our existing Corda-based asset networks. The Role: We're looking for a … be fluent in both the culture and mechanics of onchain finance. You'll lead product design and go-to-market efforts for the DeFi-native product offering within our Solana-based protocol, with a focus on packaging permissioned assets for permissionless onchain capital markets. A good candidate will know the existing RWA protocols inside and out, but the successful candidate … will understand what needs to come next and has the burning desire to build and ship it. Responsibilities Define and lead the product roadmap for the Solana-native RWA DeFi offering, from ideation through launch and iteration Organize around the needs of your users and stakeholders, such as onchain investors, DeFi partners, and RWA issuers Own product decisions and outcomes More ❯
modern libraries and architecture, including Apollo GraphQL for networking, Room for local storage, and Slack's Circuit framework to structure our Compose-driven UI. We've built our own Solana Kotlin library in-house to interface directly with the blockchain. The codebase is about three years old and we're entering a phase of rapid growth. Android is a critical … performance and reliability across a broad range of Android devices, ensuring a smooth experience even on entry-level hardware. Improve and maintain core systems related to security and blockchain (Solana) integration. Participate in code reviews, testing, and iterative improvements to keep the codebase high-quality and scalable as we grow. What we're looking for You're an experienced engineer … early and you're happy to put something out there when it's 70% done. Bonus points Experience in fintech or the payments industry. Familiarity with GraphQL and the Solana blockchain (or other blockchain technologies). An eye for smooth, delightful Jetpack Compose animations and UI polish. Proven skills in Android performance optimization, especially with Jetpack Compose. Compensation, Perks & Benefits More ❯
