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Senior Smart Contract

Role OverviewJoin Goldman Sachs’ Digital Assets Engineering team and help build institutional-grade tokenization capabilities across Global Markets and Banking. The team is developing scalable, secure, and interoperable digital-asset products and workflows spanning securities, funds, and digital cash. As a Vice President-level Senior Software Engineer, you will be a hands-on technologist responsible for designing and delivering multi-chain tokenization and interoperability solutions. You will work across Canton/Daml and EVM-based blockchain ecosystems, partnering closely with business, product, operations, control functions, and engineering teams to translate complex market, regulatory, and operational requirements into robust production platforms. This role is suited to an expert-level engineer with strong multi-chain architecture and smart-contract engineering expertise, preferably spanning Canton/Daml and EVM technologies such as Solidity and Rust. The successful candidate will bring deep knowledge of institutional tokenization, secure cross-network interoperability, and enterprise-scale distributed systems engineering.  How You Will Fulfill Your Potential<ul><li>Architect, design, and implement production-grade smart contracts, tokenization services, and interoperability components across Canton/Daml and EVM-based blockchain environments. </li><li>Design and deliver multi-chain tokenization workflows across securities, funds, collateral mobility, and digital-cash use cases, incorporating on-ledger contracts, off-ledger services, workflow orchestration, automation, and enterprise integration. </li><li>Design secure, cross-network transaction and settlement patterns, including atomic or coordinated settlement, token transfers, asset locking and release mechanisms, mint-and-burn patterns, escrow, and reconciliation controls, as appropriate to the target architecture. </li><li>Model and implement end-to-end asset lifecycles, including issuance, registry and custody, distribution, transfer restrictions, settlement, cash management, corporate actions, asset servicing, redemption, and reporting. </li><li>Design secure, privacy-aware, and operationally resilient distributed-ledger solutions, including identity, authorization, key management, wallet integration, transaction signing, data visibility, network connectivity, node operations, and production controls. </li><li>Establish and promote engineering standards for multi-chain smart-contract design, contract lifecycle management, package and protocol versioning, automated testing, security assurance, observability, performance, resilience, and secure software delivery. </li><li>Evaluate blockchain protocols, smart-contract platforms, interoperability frameworks, bridge designs, privacy-enhancing technologies, and cryptographic techniques for their suitability in institutional tokenization products. </li></ul>Basic Qualifications<ul><li>Multi-chain Tokenization expertise: Significant hands-on experience designing and delivering production tokenization systems, smart contracts, within a financial services or similarly regulated enterprise environment.</li><li>Strong expertise in EVM and Solidly smart-contract engineering, including: (a) Token standards and token lifecycle design; (b) Authorization, role-based access control, and upgrade patterns; (c) Smart-contract security controls and vulnerability remediation; (d) Automated unit, integration, end-to-end, and adversarial testing; (e) Contract deployment, release management, and monitoring; (f) Gas optimization, transaction lifecycle management, and production operational support. </li><li>Strong expertise in Canton and Daml smart-contract engineering, including: (a) complex Daml templates, choices, contract keys, signatories and authorization; (b) Daml interfaces and reusable package design; (c) Contract lifecycle and archival patterns; (d) Privacy and selective-disclosure design; (e) Upgrade-safe Daml contract design, upgrade execution, and DAR packaging; (f) Automated unit, integration, and end-to-end testing. </li><li>Demonstrable experience withmulti-chain and interoperability architecture, including: (a) Cross-chain messaging and asset-transfer architectures; (b) Bridge, relay, attestation, validator, oracle, or interoperability-protocol design; (c) Asset locking, escrow, collateralization, mint-and-burn, and burn-and-mint patterns;  (d) Cross-network transaction coordination, settlement finality, reconciliation, and failure handling; (e) Security risks associated with bridge, validator, key-management, and message-verification models. </li><li>Strong capital-markets and tokenization domain expertise across one or more relevant asset classes, such as: (a) Securitized products, including mortgage-backed securities and asset-backed securities; (b) Equities and equity-linked instruments; (c) Repo, securities financing, and collateral; (d) Money-market funds, alternative investment funds; (e) Tokenized deposits, regulated stablecoins, or digital cash.  (f) Proven ability to design “need-to-know” workflows that appropriately protect confidential client, trading, position, and transaction data. </li><li>Strong event-driven, API-first, enterprise architecture experience using Java and/or TypeScript, REST/gRPC, Kafka or equivalent event-streaming platforms.  </li></ul>Preferred Qualifications<ul><li>Experience with developing tokenization platforms in EVM-based blockchain, using Solidity, RUST, etc. </li><li>Experience with multi-chain interoperable bridge and protocol, Zero Knowledge Proof cryptography.</li><li>Experience with Agentic AI Engineering and specification-driven development (SDD) best practices, including the design of governed AI agents, tool orchestration, loop engineering and evaluation frameworks, human-in-the-loop controls, and traceable software specifications for complex enterprise workflows.</li></ul>Salary Range
The expected base salary for this New York, New York, United States-based position is $150,000-$300,000. In addition, you may be eligible for a discretionary bonus if you are an active employee as of fiscal year-end.Benefits
Goldman Sachs is committed to providing our people with valuable and competitive benefits and wellness offerings, as it is a core part of providing a strong overall employee experience. A summary of these offerings, which are generally available to active, non-temporary, full-time and part-time US employees who work at least 20 hours per week, can be found <a href="https://www.goldmansachs.com/careers/discover/2022-Benefits-Summary-US.pdf" rel="noopener noreferrer nofollow ugc" target="_blank">here</a>.ABOUT GOLDMAN SACHSAt Goldman Sachs, we commit our people, capital and ideas to help our clients, shareholders and the communities we serve to grow. Founded in 1869, we are a leading global investment banking, securities and investment management firm. Headquartered in New York, we maintain offices around the world. We believe who you are makes you better at what you do. We're committed to fostering and advancing diversity and inclusion in our own workplace and beyond by ensuring every individual within our firm has a number of opportunities to grow professionally and personally, from our training and development opportunities and firmwide networks to benefits, wellness and personal finance offerings and mindfulness programs. Learn more about our culture, benefits, and people at GS.com/careers. We’re committed to finding reasonable accommodations for candidates with special needs or disabilities during our recruiting process. Learn more: https://www.goldmansachs.com/careers/footer/disability-statement.html© The Goldman Sachs Group, Inc., 2026. All rights reserved.

Senior Software Engineer, Global Banking & Markets, Digital Assets Technology - Multi-chain Tokenization

At Breeze, we’re building the modern infrastructure for earning yield on digital assets — a seamless, non-custodial platform integrated directly into the apps users already love.Our philosophy is simple: build fast, validate quickly, double down on the things users love, and kill the ones that don’t deserve to live.You are the right candidate if you care deeply about users, enjoy working close to metal on chain-level systems, and love getting scrappy to build 0→1. At Breeze, the backend is the product — from our risk engine and fund accounting to our Solana programs powering seamless, non-custodial yield.<h3>What you’ll do</h3><ul><li>Design and implement Solana smart contracts in Rust for our core yield platform, managing funds, shares, and on-chain routing logic.</li><li>Extend and maintain backend systems — indexers, risk engines, and real-time fund analytics — ensuring they are performant and reliable at scale.</li><li>Work across the stack to integrate backend logic with our API and SDKs, surfacing clean interfaces to frontend developers and integration partners.</li><li>Push our product experiments forward by quickly validating ideas and iterating based on user and partner feedback.</li><li>Collaborate with fullstack engineers and product teams to deliver a world-class developer and user experience.</li></ul><h3>Requirements</h3><ul><li>Humble and hungry senior-level engineer with 5+ years of experience and exceptional technical skills in your domain.</li><li>Deep experience building and shipping Rust-based smart contracts on Solana.</li><li>Demonstrated ability to lead medium-to-large scope backend and protocol engineering projects.</li><li>Strong understanding of DeFi primitives (staking, lending, AMMs) and experience building crypto products.</li><li>Proven track record of delivering in fast-paced, iterative environments and finding product-market fit.</li></ul>Comfort working across engineering domains and thinking about the full product experience.

Senior Backend & Smart Contract Engineer (Rust/Solana)

At Breeze, we’re building the modern infrastructure for earning yield on digital assets — and making it seamless for developers and users to access through beautiful, intuitive interfaces.We believe in validating quickly: build it, ship it, and see how users respond. If they love it, we double down. If not, we move on.You are the right candidate if you thrive at the intersection of frontend and backend, love to craft user-centric experiences, and want to bring the power of Breeze’s risk-managed yield platform to life for developers and end users alike.<h3>What you’ll do</h3><ul><li>Build and maintain the Breeze UI toolkit and admin portal, enabling integration partners to deliver branded, composable, protocol-aware user experiences.</li><li>Develop seamless, responsive interfaces that surface Breeze’s real-time fund data, risk metrics, and user-level yield tracking.</li><li>Integrate with our Solana-based backend and SDKs, translating complex on-chain state into clear, actionable UX.</li><li>Collaborate with backend and smart contract engineers to define clean APIs and improve developer ergonomics.</li><li>Prototype and iterate on new product experiments to test with users and partners.</li></ul><h3>Requirements</h3><ul><li>Humble and hungry senior-level engineer with 5+ years of experience and very strong fullstack skills.</li><li>Demonstrated ability to ship fullstack products from 0→1 that have found product-market fit.</li><li>Experience leading medium-to-large scope projects and working across engineering domains.</li><li>Expertise in React (or similar frameworks), TypeScript, modern CSS, and backend integration.</li><li>Familiarity with Solana or other blockchain platforms and experience building crypto products.</li><li>Strong product sense and conviction for building interfaces that users actually love to use.</li></ul>

Senior Full Stack Engineer

About ChainlinkChainlink is the industry-standard oracle platform bringing the capital markets onchain and powering the majority of decentralized finance (DeFi). The Chainlink stack provides the essential data, interoperability, compliance, and privacy standards needed to power advanced blockchain use cases for institutional tokenized assets, lending, payments, stablecoins, and more. Since inventing decentralized oracle networks, Chainlink has enabled tens of trillions in transaction value and now secures the vast majority of DeFi.Many of the world’s largest financial services institutions have also adopted Chainlink’s standards and infrastructure, including Swift, Euroclear, Mastercard, Fidelity International, UBS, S&P Dow Jones Indices, FTSE Russell, WisdomTree, ANZ, and top protocols such as Aave, Lido, GMX and many others. Chainlink leverages a novel fee model where offchain and onchain revenue from enterprise adoption is converted to LINK tokens and stored in a strategic <a href="https://blog.chain.link/chainlink-reserve-strategic-link-reserve/" rel="noopener noreferrer nofollow ugc" target="_blank">Chainlink Reserve</a>. Learn more at <a href="http://chain.link" rel="noopener noreferrer nofollow ugc" target="_blank">chain.link</a>.About The RoleChainlink Labs is pioneering the world’s first fully sustainable and decentralized oracle network, and the Economics team is searching for a Senior Analyst to play a critical role in building it. This role will sit at the intersection of blockchain technology, financial innovation, and economic systems, and shape the future of decentralized economics.As an analyst, you will combine economics, data science, and blockchain expertise to shape incentives, optimize network design, and influence the decision-making of our Economics and Executive Leadership teams. You will design, analyze, and operationalize economic models for production applications. You will collaborate across departments to bring innovative solutions from concept to production, ensuring economic soundness and scalability throughout.This is a high-impact role, offering visibility and influence as you contribute to the development of the Chainlink network. If you’re a meticulous, creative, and motivated individual ready to solve complex economic problems through data-driven decisions in the rapidly evolving world of Web3, this is the role for you.Your Impact<ul><li>You will serve two primary functions: (1) designing and performing analyses that help the Economics and Executive Leadership teams make informed, data-driven decisions, and (2) building and maintaining systems for the parameterization of production applications.</li><li>You will work on a wide array of blockchain economics projects, analyses, and systems, including:<ul><li>Designing novel mechanisms and incentive schemes</li><li>Building models and simulations to evaluate investment opportunities</li><li>Designing and parameterizing trading systems</li><li>Optimizing parameters for production applications</li><li>Contributing to the design of Economics programs and applications</li></ul></li><li>You will optimize network incentives and systems by engaging directly with the Economics, Product, Engineering, Research, and Data Science teams to understand network dynamics at the deepest level.</li><li>You will meticulously operationalize processes, and coordinate cross-functionally to implement them.</li><li>This is both a highly technical and highly social role. You will have high visibility and a large impact on how Chainlink builds the world’s first fully sustainable decentralized oracle network.</li></ul><h3>Requirements</h3><ul><li>5+ years experience in a quantitative role, particularly trading or quant research</li><li>A deep understanding of financial and crypto markets and incentives</li><li>Extensive financial modeling background, including data engineering and model automation</li><li>Strong SQL and Python skills are mandatory</li><li>Experience solving economic problems through statistical/econometric analyses</li><li>Substantial data analysis and/or data science experience</li><li>Meticulous attention to detail.</li></ul><h3>Preferred Qualifications</h3><ul><li>Strong Economics and/or Finance background through Masters-level academics and/or multiple years of industry experience.</li><li>Strong organizational and coordination skills necessary to productionize/operationalize processes and applications.</li><li>Preferably smart contract programming experience (Rust, Go, Solidity), but familiarity with smart contract code and dApp architecture at a minimum</li><li>Published research with an economics or crypto focus (e.g., papers on MEV or PBS, staking and slashing dynamics, node compensation, tokenomics, etc.)</li></ul><h3>Competencies</h3><ul><li>You must be meticulous, creative, and hard-working.</li><li>You should be a curious, collaborative self-starter.</li><li>You’re ideally growth oriented, self-aware, and willing to be wrong.</li></ul>All roles with Chainlink Labs are global and remote-based. Unless otherwise stated, we ask that you try to overlap some working hours with Eastern Standard Time (EST).We carefully review all applications and aim to provide a response to every candidate within two weeks after the job posting closes. The closing date is listed on the job advert, so we encourage you to take the time to thoughtfully prepare your application. We want to fully consider your experience and skills, and you will hear from us regarding the status of your application shortly after the closing date.Commitment to Equal OpportunityChainlink Labs is an equal opportunity employer. All qualified applicants will receive equal consideration for employment in compliance with applicable laws, regulations, or ordinances. If you need assistance or accommodation due to a disability or special need when applying for a role or in our recruitment process, please contact us via this <a href="https://docs.google.com/forms/d/1wrB1WRRxShkLHI7roFKlyWDobNc3ex_wfGX2Eau5FLc/edit" rel="noopener noreferrer nofollow ugc" target="_blank">form</a>.Global Data Privacy Notice for Job Candidates and ApplicantsInformation collected and processed as part of your Chainlink Labs Careers profile, and any job applications you choose to submit is subject to our <a href="https://chainlinklabs.com/privacy-policy" rel="noopener noreferrer nofollow ugc" target="_blank">Privacy Policy</a>. By submitting your application, you are agreeing to our use and processing of your data as required.

Data Analyst, Economics

Serokell is a leading technology company specializing in advanced software development, with a strong focus on blockchain technology. We are seeking a highly skilled and experienced Senior Blockchain Developer to join our dynamic team. This role offers an exciting opportunity to work on cutting-edge blockchain projects, contributing to the design, development, and deployment of innovative solutions that drive the future of decentralized applications and secure digital infrastructure. The ideal candidate will possess a deep understanding of blockchain protocols, smart contract development, and cryptographic principles, coupled with a passion for staying updated with the latest industry trends. At Serokell, we value precision, creativity, and collaboration, and we are committed to fostering a work environment where talented professionals can thrive and make significant contributions to groundbreaking projects. If you are a motivated developer with a proven track record in blockchain technologies and a desire to work in a forward-thinking organization, Serokell provides a platform to advance your career and impact the rapidly evolving blockchain landscape.Responsibilities<ul><li>Design, develop, and maintain secure and scalable blockchain solutions and smart contracts.</li><li>Collaborate with cross-functional teams to define, design, and ship new features.</li><li>Conduct thorough code reviews and ensure the robustness and security of blockchain implementations.</li><li>Implement and optimize consensus algorithms and blockchain protocols.</li><li>Stay informed about emerging blockchain technologies and integrate relevant innovations.</li><li>Troubleshoot and resolve technical issues related to blockchain systems.</li><li>Contribute to the continuous improvement of development processes, tools, and best practices.</li></ul><ul><li>Bachelor's or Master's degree in Computer Science, Engineering, or a related field.</li><li>Extensive experience in blockchain development, including Ethereum, Hyperledger, or similar platforms.</li><li>Strong proficiency in programming languages such as Solidity, Rust, or Haskell.</li><li>Deep understanding of cryptographic principles, decentralized systems, and consensus mechanisms.</li><li>Proven experience in developing and deploying smart contracts.</li><li>Familiarity with distributed ledger technologies and peer-to-peer networking.</li><li>Excellent problem-solving skills, attention to detail, and ability to work independently and collaboratively.</li></ul><ul><li>Work From Home</li><li>Training & Development</li></ul><ul><li>Bachelor's or Master's degree in Computer Science, Engineering, or a related field.</li><li>Extensive experience in blockchain development, including Ethereum, Hyperledger, or similar platforms.</li><li>Strong proficiency in programming languages such as Solidity, Rust, or Haskell.</li><li>Deep understanding of cryptographic principles, decentralized systems, and consensus mechanisms.</li><li>Proven experience in developing and deploying smart contracts.</li><li>Familiarity with distributed ledger technologies and peer-to-peer networking.</li><li>Excellent problem-solving skills, attention to detail, and ability to work independently and collaboratively.</li></ul><ul><li>Work From Home</li><li>Training & Development</li></ul>

Senior Blockchain Developer

18 link clicks.

Circle

We are looking for a Smart Contract Engineer to design, implement, test, and maintain production-grade smart contracts across multiple blockchain ecosystems. This role focuses primarily on EVM-based Solidity contracts and Solana programs written in Rust using the Anchor framework, while also building the backend services that power and integrate with those contracts. As a Smart Contracts Engineer, you’ll be responsible for building secure and efficient smart contracts that power Circle’s core protocols. You’ll also contribute to the supporting backend services that enable transaction orchestration, indexing, and monitoring (70% smart contract development and 30% backend development). You will work closely with protocol, infrastructure, and security engineering teams to deliver high-assurance, auditable solutions that support scalable, blockchain-based services across ecosystems.

Senior Smart Contract Engineer

Taipei City - remote first in Taiwan

Web3 Senior Smart Contract jobs Circle and other crypto companies

Browse 1+ Web3 Senior Smart Contract jobs at Circle. Apply now! Updated September 2026

Job Title	Company Name	Salary	Location	Tags
Senior Smart Contract Engineer	Circle			Smart ContractSolidityRustBackend
Past and filled jobs:
Senior Software Engineer, Global Banking & Markets, Digital Assets Technology - Multi-chain Tokenization	Goldman Sachs	150k-300k/year	📍 New York, NY, United States	EngineeringSeniorSmart ContractSolidity
Senior Backend & Smart Contract Engineer (Rust/Solana)	Anagram	120k-180k/year	Remote	RemoteWeb3DeveloperEngineering
Senior Full Stack Engineer	Anagram	100k-150k/year	Remote	RemoteWeb3DeveloperEngineering
Data Analyst, Economics	Chainlink Labs		Remote	RemoteWeb3ResearchDeveloper
Senior Blockchain Developer	Serokell			SeniorSmart ContractSolidityRust

Web3 Senior Smart Contract Jobs

Latest Senior Smart Contract Jobs.

Past and filled jobs:

Senior Smart Contract Engineer

Circle

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