Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Smart Contract Engineer

Paxos Labs

Who we are

Paxos Labs builds enterprise infrastructure that powers the next generation of trusted onchain financial products. We work with the largest financial enterprises in the world to build transparent and verifiable onchain infrastructure that works for end users and everyday financial use cases. If you believe in bringing DeFi and digital assets to the mainstream, consider building your career at Paxos Labs.

We're hiring a Smart Contract Engineer to help scale Paxos Labs's DeFi protocol infrastructure capabilities.

Who we're looking for

The smart contract team at Paxos Labs consists of experienced developers who have shipped multiple decentralized primitives from lending markets to vaults.We are looking for a motivated developer that can not only develop, but aptly research and deploy extensive knowledge across DeFi to create mission critical software to bring DeFi to the biggest enterprises in the world.

Most importantly, we are looking for developers with interests in the following:
  1. DeFi Yield Strategies
  2. Tokenization
  3. Decentralized Lending
  4. Under/un-collateralized Lending

Responsibilities
  • Research and design novel protocol mechanisms around vaults, lending, and other DeFi primitives.
  • Lead protocol design decision making considering tradeoffs across trust assumptions and efficiency.
  • Develop solidity contracts and produce comprehensive test suites for the protocol.
  • Maintain exemplary organizational and security standards for an open source codebase.
Qualifications

Knowledge

Deep knowledge refers to having direct contributions or having integration experiences through related projects and knowing lower level details.

Familiarity refers to not having had direct contributions to the space but following topics at a high level with interest.
  • Deep knowledge in Lending codebases-Compound, Aave, Morpho Blue, MakerDAO, Euler, EVC, Liquity, Pendle.
  • Deep knowledgein Vaults codebases-Yearn V3, Metamorpho / Morpho V2, BoringVaults, ERC7540, Centrifuge, etc.
  • Familiarity with AMMs or solver networks -CoW Protocol, UniswapX, 1inch, Uniswap V3/V4.
  • Familiarity with RFQs -Hashflow, 1inch RFQ, or off-chain exchange systems (including TradFi)
Experience
  • Experience shipping production Solidity smart contract code to mainnet.
  • Experience developing and maintaining tests for smart contract code i.e. unit testing, fork testing, fuzzing, invariant testing (Foundry invariants or Echidna).
  • Experience with smart contract development tools such as Foundry (preferred) or Hardhat.
  • Familiarity with other smart contract development languages and frameworks such as, Vyper, Rust, Cairo, or Cosmwasm.
  • Experience as an active degen / investor / user in these DeFi protocols.
Other nice-to-haves
  • Personal experience in CTFs, gas golfing, hackathons.
  • Personal experience in blockchain architecture beyond solidity i.e. Rollups,
  • Personal experience as a degen/investor/user in DeFi protocols.
  • Personal experience in blockchain architecture beyond smart contracts i.e. node operations, rollup design, zero-knowledge proofs.
Why join us?

Joining Paxos Labs means becoming part of a pioneering team at the forefront of financial innovation for the mass market. You will have the opportunity to:
  • Build the Future: Play a critical role in transforming traditional enterprises with innovative crypto solutions.
  • Do Impactful Work: Contribute to projects that have a tangible impact on the global financial landscape.
  • Enable Personal Growth: Benefit from continuous learning and professional development in a rapidly evolving industry with an emphasis on personal career advancement.
  • Receive Competitive Compensation: Receive a competitive salary and participate in directly in ownership structures that provide top-of-the-line benefits.
  • Join A Dynamic Team: Thrive in a fast-paced, agile setting where your ideas are valued and your contributions are recognized.

Location

We are a heavily in-person team working in New York City. We prize effective in-person coordination that allows us to move fast. We also consider remote work on a case by case basis.

Once we receive your application, we'll be in touch if we are interested.
Vacancy posted 4 days ago
Similar jobs that could be interesting for youBased on the Smart Contract Engineer in United States vacancy
  •  ...to each team or employee).The Impact you will have in this role:Being a member of the Digital Assets team, the Senior Rust Smart Contract Engineer will design, develop and maintain production-grade smart contracts for the Stellar blockchain using the Soroban framework and... 
    Suggested
    Contract work
    Remote work
    Flexible hours

    DTCC- The Depository Trust & Clearing Corporation

    Jersey City, NJ
    4 days ago
  •  ...access to digital ownership for developers globally. As an engineer at Witness, you'll play a critical role in building out our...  ...with the potential to work on things like indexers, databases, smart contracts, cryptography, and APIs all operating at a global scale.... 
    Suggested
    Contract work
    Work experience placement
    Remote work
    Flexible hours

    Witness

    United States
    2 days ago
  • $120k - $220k

     ...ether.fi . Position Overview: We’re looking for engineers who want to build&ship , not just fork&integrate. People who...  ...the real world use cases Designing and deploying Solidity smart contracts for staking, vaults, restaking strategies, and DeFi credit card... 
    Suggested
    Contract work

    Ether

    Denver, NY
    5 days ago
  •  ...Smart Contract Engineer New York, New York, United States About the Job Our client is building essential zk-rollup infrastructure for Ethereum. Their work is at the cutting edge of cryptography and blockchain technology. They are building the first live oracle... 
    Suggested
    Contract work
    Night shift

    Kinsei Talent

    New York, NY
    1 day ago
  •  ...Job Description Job Description Hiring a web3 developer who is experienced with writing smart contracts in solidity for Ethereum. Must also have familiarity with NFTs and current NFT trends. Responsibilities Handling the entire web3 portion of our site.... 
    Suggested
    Contract work

    Forhyre

    New York, NY
    19 days ago
  • $226k - $282k

     ...Uniswap, you become part of a team that's reshaping the way value flows on the internet. We are looking for an experienced smart contract engineer to help us build the next generation of the Uniswap Protocol. You will be responsible for implementing and designing smart... 
    Full time
    Contract work
    Remote work
    Home office

    Uniswap

    New York, NY
    1 day ago
  • $170k - $250k

     ...products have facilitated over $285B in trading volume across Solana markets. Opportunity Ellipsis Labs is seeking an SVM Smart Contract Engineer to join our team. In this role, you will: Develop and maintain critical smart contracts for the SVM, along with the appropriate... 
    Contract work

    Ellipsis Labs

    New York, NY
    1 day ago
  • $290k - $325k

     ...Uniswap, you become part of a team that's reshaping the way value flows on the internet. We are looking for an experienced smart contract engineer to help us build the next generation of the Uniswap Protocol. You will be responsible for implementing and designing smart... 
    Full time
    Contract work
    For contractors
    Remote work
    Home office
    Visa sponsorship

    P2P

    New York, NY
    3 days ago
  • $220k - $260k

     ...staking, reward distribution, and protocol contracts Build tooling, fuzzers, and formal...  ...directly with protocol researchers and engineers to harden new features from inception Read...  ...vulnerabilities Experience with developer tools for smart contract development (e.g., Hardhat,... 
    Full time
    Contract work
    Remote work

    TechChain Talent

    Seattle, WA
    1 day ago
  •  ...fully remote, international team. We are looking for a senior engineer, tech lead, or staff+ software engineer with deep blockchain...  ...on‑chain ecosystems. You will design and implement Solidity smart contracts, EVM‑based architectures, and upgradable proxy patterns, collaborating... 
    Remote job
    Contract work

    Activision Blizzard

    Seattle, WA
    2 days ago
  •  ...Job Description Job Description We are looking for an exceptional Remote Smart Contract Engineer for one of our clients. Our client is building an app that is the best place to save and spend your dollars. They combine high-yield savings with rewarded spending in... 
    Contract work
    Remote work

    Turnblock.io

    Boston, MA
    17 days ago
  •  ...We are seeking an experienced Smart Contract Engineer to support the continued development of a Web3 developer reputation platform. The platform is currently under active development and has not yet been deployed publicly. It is designed to create verifiable developer... 
    Contract work

    Antfarmdao

    Wyoming, MI
    a month ago
  •  ...for a skilled professional to lead design and security reviews of staking and reward distribution contracts. You will collaborate closely with researchers and engineers while developing tooling to identify vulnerabilities early. A deep understanding of blockchain fundamentals... 
    Full time
    Contract work

    TechChain Talent

    Seattle, WA
    1 day ago
  • Job-ID32833186Reference26-02630Job Title: (CW Functional ECU and Smart Security Design Engineer)About Kyyba:Founded in 1998 and headquartered in Farmington Hills, MI, Kyyba has a global presence delivering high-quality resources and top-notch recruiting services, enabling... 

    Kyyba

    Saline, MI
    3 days ago
  • $65 - $85 per hour

    Contract Systems & Storage Engineer, $65-to-$85-hour, Boston HybridCompensation Commensurate with experience, bonus, benefits, EOE, diverse highly educated culture. Candidates must be a U.S. citizen or national, refugee, asylum, or lawful permanent residents. Principals... 
    Permanent employment
    Contract work

    BlueSkyClarity

    Boston, MA
    1 day ago
  • $34 - $48 per hour

     ...Job Description Job Description Kett Engineering provides services to automotive manufacturers, Tier-1 suppliers, and technology companies...  ...and technical centers. Kett’s core service offerings include contract recruiting and staffing, proving ground management, test... 
    Hourly pay
    Contract work
    Remote work
    Monday to Friday

    Kett Engineering

    Plymouth, MI
    19 days ago
  •  ...Job title: Contract Engineer – FEED and EPC roll over for regasification plant in Egypt Sector: Oil & Gas Starting date: 15/05/2026 Duration: 6 Months Location: Based in Paris / Possible travel : Cairo, Egypt, London, UK, 1 time a month) Status: Resident... 
    Contract work
    Temporary work
    For contractors
    Local area

    Comsip

    Coffeyville, KS
    more than 2 months ago
  • $100k

     ...leading edge of AI hardware? Tenstorrent is looking for a Component Engineer who is passionate about selecting the right parts, driving cost...  ...and maintaining the Approved Vendor List (AVL) and driving smart multi-sourcing strategies that keep programs moving.An engineer... 
    Permanent employment
    Shift work

    Tenstorrent

    Santa Clara, CA
    3 days ago
  • Job ID: 28999153Reference Number: 26-00725Title: Contract Role Of Data Engineer RemotePosted Date: 2026-08-04Contact: Vishika ChaudharyContact Email: ****@*****.*** Phone: (***) ***-****Company: HAN StaffingLocation: Remote / 2-3 days Hybrid if... 
    Contract work
    Work at office
    Remote work

    HAN Staffing

    New York, NY
    5 hours ago
  •  ...Material Science uniquely spans the fields of physics, chemistry, engineering, and manufacturing. Our instruments and software come together...  ...our Thermal Analysis and Rheology products.This is a hybrid contract position (Requiring on-site for three days a week)... 
    Contract work
    Local area
    Worldwide
    3 days per week

    Waters

    New Castle, DE
    4 days ago
  •  ...Summary & Responsibilities:The ideal candidate will be in the office an average of 3 days per week. Provide integrated petroleum engineering support across international conventional assets, with exposure to unconventional projects on a limited basis.Apply reservoir engineering... 
    Contract work
    Work at office
    3 days per week

    Hunt Consolidated

    Dallas, TX
    1 day ago
  •  ...Job Description Job Description Job Description: We are seeking a highly motivated and detail-oriented Contracts Process Engineer to join our team. This individual will be responsible for converting government contracts, including all associated drawings and specifications... 
    Contract work
    Work experience placement

    Guill Tool & Engineering

    West Warwick, RI
    24 days ago
  •  ...common goal? Do you want a direct impact on customer happiness? If so, we want you to join our team!     Director of Pre-Contract Engineering (Pre-Contract Support) This role leads a centralized team responsible for providing technical, commercial, and engineering... 
    Contract work
    Casual work
    Flexible hours

    CENTRICA BUSINESS SOLUTIONS US INC

    Orange, CA
    12 days ago
  • $40 - $50 per hour

     ...South Korea, and China, along with a world-class biologics production facility in Taichung. Position Overview: The IT Helpdesk Engineer Level 2 is responsible for providing advanced technical support to end users, resolving escalated IT issues, maintaining IT... 
    Hourly pay
    Permanent employment
    Contract work
    Work at office
    Remote work

    PharmaEssentia U.S.A.

    Burlington, MA
    19 days ago
  •  ...Job Description Job Description This is a contract with the potential of a permanent position based in Hoffman Estates, IL. We are...  ...required. What is required is a polished, service-minded IT Support Engineer to support our Hoffman Estates team. You’ll be responsible... 
    Permanent employment
    Contract work
    H1b
    Work at office
    Local area
    Immediate start

    Simplex

    Hoffman Estates, IL
    23 days ago
  • $50 per hour

     ...require the selected candidate to function as an E&T Project Engineer working proposals with the F&BO organization.The selected candidate...  ...will coordinate with Program Managers, Business Managers, Contracts, Pricing, Engineering and others within Lockheed Martin Aeronautics... 
    Full time
    Contract work
    Temporary work
    Work experience placement
    Interim role
    Casual work
    Work at office
    Flexible hours

    Lockheed Martin

    Fort Worth, TX
    3 days ago
  • $85 per hour

     ...About the Role: As a Stable Kernel Senior Software Engineer , you play an essential role in setting our portfolio of world...  ...Info: Minimum Base Compensation: $85 per hour This is a contract position. Stable Kernel operates a People Before Place Hybrid... 
    Hourly pay
    Full time
    Contract work
    Temporary work
    Visa sponsorship
    Work visa

    Stable Kernel

    Atlanta, GA
    1 day ago
  • $50.62 - $81 per hour

     ...and future Nintendo game systems. We are looking for a junior engineer with attention to detail and a passion for audio technologies....  ...Redmond, WA, and not open to remote status at this time. This contract position includes the base pay range listed below and is eligible... 
    Full time
    Contract work
    Worldwide

    Nintendo

    Remote
    1 day ago
  • $85.02k

     ...delivery of services. The position prepares and reviews consultant contract terms, evaluates compensation structures, and ensures all...  ...throughout the contracting process. A registered Professional Engineer (PE) license and at least four years of transportation design or... 
    Full time
    Contract work
    For contractors
    Work experience placement
    Work at office
    Local area

    State of Indiana

    Indianapolis, IN
    4 days ago
  •  ...Job Title: Infrastructure Engineer L3 Job Location: Dallas, TX (Hybrid 2-3 days onsite/ week) Job Duration: 6+ months...  ...years of experience required: 8+ years Type of Hire: w2 contract JOB DETAILS: An experienced Infrastructure Engineer... 
    Contract work
    Temporary work
    2 days per week
    3 days per week

    Noblesoft Technologies

    Dallas, TX
    2 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Smart Contract Engineer. Be the first to apply!