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Ephemera
Ephemera

Staff Smart Contracts Engineer

Location

Remote restrictions apply
See all remote locations

Salary Estimate

N/AIconOpenNewWindows

Seniority

Staff

Tech stacks

Blockchain
Security software
Tokenomics
+19

Visa

U.S. visa required

Permanent role
5 days ago
Apply now

Join Ephemera, Build the Future of Onchain Messaging

We are seeking an experienced Staff-level Smart Contracts Engineer to lead the design, development, and maintenance of mission-critical blockchain systems with a focus on tokenomics. You will own the end-to-end lifecycle of smart contracts - from architecture and implementation to audits, deployment, and upgrades.

What You’ll Be Working On

  • Writing and deploying smart contracts that govern the economics of the XMTP protocol
  • Working with the team to design novel incentive models to reward offchain node operators and collect messaging fees
  • Design & Implement Tokenomics Contracts: Lead the development of complex token contracts (ERC-20, staking, governance, vesting, distribution, liquidity management) tailored to evolving protocol needs
  • Upgradability & Governance: Architect upgradeable contracts (e.g., via OpenZeppelin proxy patterns) ensuring safe, controlled, and transparent change management
  • Security & Audits: Champion security best practices, lead internal reviews, coordinate with third-party auditors, and implement continuous monitoring of deployed contracts
  • Production-Grade Operations: Manage large-scale funds in production environments, ensuring availability, integrity, and protection of treasury and user assets
  • Cross-Functional Leadership: Partner with economics, product, and legal teams to translate tokenomics know-how into practical, deployable smart contract systems
  • Mentorship & Standards: Establish engineering best practices for smart contract development, mentor other engineers, and raise the bar for security, efficiency, and maintainability

Your Experience

  • Minimum of 7+ years of professional experience as a software engineer, staff level

  • Extensive experience designing, building, and maintaining cryptoeconomic systems

  • Architected and designed complex protocols onchain

  • Experience working with auditors to find vulnerabilities

  • Writing well-tested Solidity code

Qualifications

_Technical Expertise

_

  • 5+ years of software engineering experience, with at least 3 years focused on Solidity / EVM-based smart contracts
  • Proven track record of deploying and maintaining production-grade contracts managing significant funds
  • Deep familiarity with tokenomics mechanisms: staking, bonding curves, vesting, emissions schedules, treasury management
  • Strong understanding of EVM internals, gas optimization, and advanced contract design patterns
  • Hands-on experience with upgradable contracts, proxy patterns, and governance-controlled upgrade systems

_Security Focus

_

  • Prior experience working with formal verification, fuzzing, or static analysis tools
  • Contributions to audits, incident response, or security-critical systems

_Leadership

_

  • Ability to balance long-term protocol sustainability with near-term delivery needs

Nice-to-Haves

  • Experienced simulating economic systems using deterministic and/or stochastic modeling techniques
  • Experience working in open source and communicating with the public
  • Experience working as an auditor

About You

  • You are passionate about decentralized technology and believe in an onchain future
  • You love to win and are fueled by solving hard problems
  • You are self-directed, see opportunities and are inspired by challenges and helping solve them
  • You have a small team mindset and are focused on where you can have the greatest impact
  • You love to learn, are not afraid of changing your opinion or being wrong

Benefits

  • Competitive compensation package, Base + Equity
  • Salary range between $235k–$275k base (depending on experience + location)
  • Remote-first environment with semi-yearly gatherings to connect IRL
  • Fully paid Medical, Dental, Vision insurance in the US
  • Parental Leave
  • IT Equipment and WFH setup
  • Monthly Wellness and Lifestyle stipend
  • Personal assistant
  • Unlimited time off

Compensation Range: $235K - $275K

About Ephemera

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