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Smart Contract Developer Jobs in California (NOW HIRING)

De Circle

Reins - Fullstack Engineer

San Francisco, CA · On-site +1

Product/frontend contributor (optional) Focus areas are prioritized as follows: security & smart contracts, full-stack, backend, and product/frontend. Infrastructure/devops is not a current priority.

Mesh

Senior QA Automation Engineer

San Francisco, CA · On-site

$100K - $200K/yr

Design test strategies that cover the full stack: UI, API, smart contract interactions, and wallet ... Active, hands-on user of AI code generation and developer tools (e.g., GitHub Copilot, Cursor ...

Circle

Senior Counsel, Arc

San Diego, CA · On-site

$230K - $297K/yr

Partner with Product, Engineering, Compliance, and Policy to shape blockchain features and smart contract structures aligned with applicable laws. * Design and implement legal policies, protocols ...

Circle

Senior Counsel, Arc

Los Angeles, CA · On-site

$230K - $297K/yr

Partner with Product, Engineering, Compliance, and Policy to shape blockchain features and smart contract structures aligned with applicable laws. * Design and implement legal policies, protocols ...

Circle

Senior Counsel, Arc

San Francisco, CA · On-site

$230K - $297K/yr

Partner with Product, Engineering, Compliance, and Policy to shape blockchain features and smart contract structures aligned with applicable laws. * Design and implement legal policies, protocols ...

De Circle

Odos - Frontend Engineer

San Francisco, CA · On-site +1

... frontend engineer supporting the design, development, and deployment of our various web ... Experience with EVM smart contract development using Solidity * Full stack experience building APIs ...

Logical Intelligence

AI Engineer in ML Data

San Francisco, CA · On-site +1

$134K - $162K/yr

... Golang, and smart contract VMs. We've won a well-known formal verification benchmark called ... About the role Join our team as an AI Engineer and help us push the boundaries of what's possible ...

Career Renew

Software Engineer - Web3

Los Angeles, CA · Remote

$150K - $250K/yr

Career Renew is recruiting for one of its clients a Software Engineer - Web3 - this is a fully ... Write production smart contracts across multiple virtual machines (EVM, SVM, TVM, and emerging alt ...

Career Renew

Software Engineer - Web3

San Francisco, CA · Remote

$150K - $250K/yr

Career Renew is recruiting for one of its clients a Software Engineer - Web3 - this is a fully ... Write production smart contracts across multiple virtual machines (EVM, SVM, TVM, and emerging alt ...

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Showing results 1-20

All JobsSmart Contract Developer JobsSmart Contract Developer Jobs in California

Smart Contract Developer information

See California salary details

$39.5K

$127.7K

$156.4K

How much do smart contract developer jobs pay per year?

As of Jun 30, 2026, the average yearly pay for smart contract developer in California is $127,654.00, according to ZipRecruiter salary data. Most workers in this role earn between $104,600.00 and $154,900.00 per year, depending on experience, location, and employer.

What is the difference between Smart Contract Developer vs Blockchain Developer?

AspectSmart Contract DeveloperBlockchain Developer
CredentialsKnowledge of Solidity, Ethereum, smart contract securityKnowledge of blockchain protocols, cryptography, and development tools
Work EnvironmentFocus on writing, testing, and deploying smart contracts on blockchain platformsDevelops entire blockchain applications, including smart contracts and decentralized apps
Industry UsagePrimarily in DeFi, NFT, and blockchain-specific projectsBroader blockchain solutions, including infrastructure and application development

While both roles work within the blockchain industry, a Smart Contract Developer specializes in creating and securing smart contracts, whereas a Blockchain Developer has a broader scope, including building entire blockchain systems and applications.

What are Smart Contract Developers?

Smart Contract Developers are professionals who design, write, and deploy self-executing contracts on blockchain platforms such as Ethereum. These contracts encode rules and agreements into code, enabling automated and trustless transactions between parties. Smart Contract Developers are skilled in blockchain technologies and programming languages like Solidity, and they ensure that contracts are secure, efficient, and function as intended. They often work with decentralized applications (dApps) and participate in the broader ecosystem of blockchain development.

What are the key skills and qualifications needed to thrive as a Smart Contract Developer, and why are they important?

To thrive as a Smart Contract Developer, you need a strong grasp of blockchain fundamentals, proficiency in programming languages like Solidity or Vyper, and experience with decentralized application (dApp) development. Familiarity with tools such as Truffle, Hardhat, Remix, and knowledge of smart contract auditing and security best practices is essential. Analytical thinking, attention to detail, and strong problem-solving skills are critical soft skills for this role. These abilities ensure the creation of secure, efficient, and reliable smart contracts that underpin trustworthy decentralized systems.

What are some common challenges Smart Contract Developers face when working on blockchain projects?

Smart Contract Developers often encounter challenges such as ensuring code security, avoiding vulnerabilities like reentrancy attacks, and dealing with the immutability of deployed contracts, which makes fixing bugs post-deployment difficult. Additionally, they must stay updated on rapidly evolving blockchain frameworks and tools, and work closely with auditors and project managers to ensure compliance and correctness. Collaborating with front-end and back-end developers is also key, as smart contracts often form the backbone of decentralized applications requiring seamless integration.
What are popular job titles related to Smart Contract Developer jobs in California? For Smart Contract Developer jobs in California, the most frequently searched job titles are:
What job categories do people searching Smart Contract Developer jobs in California look for? The top searched job categories for Smart Contract Developer jobs in California are:
What cities in California are hiring for Smart Contract Developer jobs? Cities in California with the most Smart Contract Developer job openings:
Smart Contract Developer jobs near you

Reins - Fullstack Engineer

De Circle

San Francisco, CA • On-site, Remote

Full-time

Posted 23 days ago

Job description

Reins is building an enterprise stablecoin account that looks and feels like a first-class business bank account, while giving companies the benefits of stablecoin rails and self-custody. Reins makes stablecoins operationally simple for businesses, providing familiar banking features such as ACH, wires (and global equivalents like SEPA), cards, multi-level permissions, approvals, and AML/compliance workflows-combined with stablecoin-native advantages like instant 24/7 global settlement, better control via self-custody, and access to lending, insurance, and exchange markets as DeFi infrastructure matures.
Role Overview
You'll work directly with founder and CEO Sebastian Delgado (co-founder of Fei Labs), taking ownership of meaningful chunks of backend, full-stack, and security work. The role is flexible:
  • Full-stack engineer (preferred)
  • Backend engineer
  • Product/frontend contributor (optional)

Focus areas are prioritized as follows: security & smart contracts, full-stack, backend, and product/frontend. Infrastructure/devops is not a current priority.
Backend & Integrations
  • Design and build backend services connecting custody, fiat rails, policies, and operational workflows
  • Implement and maintain APIs and services for ACH, wires, cards, permissions, AML/compliance workflows, and reporting
Smart Contracts & Security
  • Implement and review Solidity smart contracts, focusing on correctness, safety, and upgradeability
  • Contribute to threat modeling, security reviews, and audit/vendor management

Product & Full-Stack Work
  • Collaborate on the design and implementation of customer-facing applications (currently Dart/Flutter)
  • Translate user and operational needs into product and UX decisions, especially around permissions, approvals, and money flows

Security & Audit Participation
  • Own parts of audit/security review processes for your areas of the stack
  • Coordinate with external security firms
  • Build internal systems and processes with a security-first mindset appropriate for handling customer funds

  • Strong background as a backend or full-stack engineer, ideally in early-stage fintech (Plaid, Brex, Ramp, modern neobanks)
  • Experience with crypto infrastructure, wallets, or stablecoin projects
  • Proficiency in Solidity smart contracts or a willingness to contribute to security-critical logic
  • Familiarity with APIs, integrations, and operational workflows (ACH, wires, cards, permissions, AML/compliance)
  • Ability to collaborate on frontend/product work is a plus (Dart/Flutter experience beneficial)
  • Strong understanding of security best practices for handling customer funds
  • Excellent problem-solving, attention to detail, and autonomy in early-stage environments

Preferred Backgrounds
  • Early engineers at crypto infra/wallet/stablecoin companies
  • Strong backend/full-stack engineers from top fintechs who are crypto-native

Apply