s and tomorrow's financial systems. You'll be part of our multidisciplinary engineering team, building and evolving 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 knowledge and experience in on-chain programming of Solana in Rust. This project involves accessing Solana from server infrastructure written in Kotlin, with no web UI or Typescript components. Responsibilities Design, implement, and test Solana on-chain programs in Rust. Apply 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 development and delivery. Contribute to the technical direction of Solana engineering at R3. Mentor and assist other engineers in understanding and solving problems related to Solana on-chain development. Learn, understand, and develop Corda, R3's private DLT product. Make complex decisions using comprehensive judgment. Maintain a security-focused 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 eco systems 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 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 ❯
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 ❯
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 ❯
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 ❯
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 ❯
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 ❯
shaping today's and tomorrow's financial ecosystem. This role is at the exciting convergence of Traditional Finance (TradFi) and Decentralised Finance (DeFi), focusing on integration between Corda and Solana blockchains. You'll bring hands-on experience in both manual and automated testing, a product mindset, and a deep understanding of platform-level testing challenges. Responsibilities: Contribute to and influence … automation team in India to ensure they can effectively support new product and feature testing. Become a subject matter expert in testing both the Corda private DLT platform and Solana's public blockchain, including on-chain programs and protocol verification. Mentor and support other team members to elevate their testing and automation skills, fostering a collaborative learning environment. Tech Stack … s bespoke automation frameworks primarily built in Kotlin, including the Corda Regression Automation Framework for Testing (CRAFT). Platforms: Deep experience with blockchain platforms, specifically Corda (private DLT) and Solana (public blockchain). Tools & Environment: Linux, shell scripting, TCP/IP networking, cloud-based test execution environments, and UI test automation tools for web applications. Skills and Qualifications: 6+ years 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 engineering role Hands-on experience with Web3 tools: wallets, APIs, smart More ❯
Business Development Lead Blockchain Remote £160-£220k Plexus has a great opportunity with a pioneering force in the Solana ecosystem. Operating at the forefront of decentralized innovation, the company delivers cutting-edge solutions that remove barriers to adoption, empower builders, and accelerate the next wave of blockchain adoption. This is a role for a BD lead - deal-maker, strategist, and … and communication skills. Hunger to make an outsized impact in a high-growth environment. Benefits & Perks Generous vacation allowance. A collaborative, high-energy team driving real innovation in the Solana ecosystem. Competitive salary If your interesting in this role please press apply 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 ❯
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 ❯
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 ❯
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 ❯
performance and reliability across a broad range of iOS 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 animations and UI polish. Not ticking every box? That's totally okay! If you're passionate about this role More ❯
