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Smart Contract Developer Intern Jobs in California

Smart Contract Development * Experience with EVM smart contract development using Solidity ... years of backend engineering experience preferred * Comfortable with taking ownership of the ...

Semiotic Labs - Rust Engineer

San Francisco, CA · On-site +1

$67.75 - $91/hr

Work closely with smart contract engineers to ensure seamless on-chain integration (mainly on L2s like Arbitrum). * Write clean, testable, and efficient code with a focus on security and correctness.

Designing, implementing, and maintaining scalable and secure smart contracts on EVM-based blockchains * Collaborating with cross-functional teams, including AI/ML engineers, product managers, and ...

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Smart Contract Developer Intern information

What is a smart contract developer intern?

A Smart Contract Developer Intern is responsible for assisting in the design, development, and testing of smart contracts on blockchain platforms like Ethereum. They typically work with programming languages such as Solidity and may use development frameworks like Hardhat or Truffle. Interns often contribute to writing secure, efficient code, debugging contracts, and collaborating with teams on blockchain applications. This role provides hands-on experience with decentralized technologies and helps interns build practical skills in blockchain development.

What are the key skills and qualifications needed to thrive as a smart contract developer intern?

To thrive as a Smart Contract Developer Intern, you need a solid understanding of blockchain fundamentals, programming skills in languages like Solidity or Rust, and familiarity with decentralized application (dApp) architecture. Experience with development tools such as Truffle, Hardhat, Ethereum testnets, and source control systems like Git is highly valuable. Strong analytical thinking, attention to detail, and proactive communication skills help you excel in collaborative and rapidly evolving environments. These skills are critical to ensuring the security, reliability, and efficiency of smart contract code in blockchain projects.

What does a smart contract developer intern do?

Smart Contract Developer Interns often work on tasks like writing, testing, and auditing smart contracts for blockchain-based applications under the guidance of senior developers. Daily responsibilities can include troubleshooting issues, contributing to code reviews, and assisting with integrating smart contracts into decentralized applications. Interns may also collaborate closely with frontend/backend developers, product managers, and QA teams to ensure seamless deployment and functionality. This hands-on experience provides valuable exposure to industry best practices and can lay the foundation for future career growth in blockchain development.

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Infographic showing various Smart Contract Developer Intern job openings in California as of August 2026, with employment types broken down into 8% Internship, 39% Full Time, 15% Part Time, 10% Temporary, and 28% Contract. Highlights an 88% In-person, and 12% Remote job distribution.

Smart Contract Developer Remote US (DeFi)

Turnblock.io

San Francisco, CA • Remote

$120K - $300K/yr

Full-time

Re-posted 24 days ago


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 a single, compounding balance that's easy to manage. Soon the app will let you pay your bills and put your financial life on autopilot. And through all of this — unlike every other fintech company — they don't skim from you.

As a Smart Contract Engineer you will:

  • Be integral to implementing novel economic systems built on top of Ethereum.
  • Work regularly with security auditors and external contributors to document and upgrade code.
  • Support and maintain an active test economy, as well as integrations with partner protocols.
  • Act as a primary contributor to the tech community, evaluating and implementing upgrade proposals.
  • Ensure smart contracts track state of the art by evaluating new DeFi protocols, EIPs, Layer 1 and Layer 2 mechanisms, etc.

We’re looking for you if:

  • You’re drawn to the hardest problems with the greatest potential impact.
  • You combine strong CS/Software Engineering fundamentals with a strong background in math and security.
  • You have knowledge of cryptography fundamentals and independent interest in economics.
  • You fail fast, prioritize tests, and you’re comfortable up and down the software stack.
100% remote role for any location USA or Europe.
If you think you fit the description please apply.