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Rust Contract Jobs in California (NOW HIRING)

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 ... Proficient with Rust's async/await model , leveraging futures, tokio, or async-std * Understanding ...

Conduct advanced security research on Solana and other Rust-based smart contract platforms. * Work closely with core contributors to perform in-depth internal security audits. * Work with external ...

... in signed contracts across commercial and US government customers - we're mass-producing the ... This spectrum includes GNC algorithms (Rust, C++), application software on flight computers (Rust ...

Senior Software Engineer

Los Angeles, CA · On-site

$160K - $200K/yr

... in signed contracts across commercial and US government customers - we're mass-producing the ... This spectrum includes GNC algorithms (Rust, C++), application software on flight computers (Rust ...

... in signed contracts across commercial and US government customers - we're mass-producing the ... We see Rust as a key enabling technology that allows us to be more effective as software engineers ...

Senior Solana Engineer

San Francisco, CA · On-site +1

$200K - $220K/yr

As a Solana Smart Contract Engineer, you will architect and develop Solana programs in Rust and extend our existing issuance infrastructure with a focus on Token-2022. The ideal candidate is self ...

New

But what if companies could exit their contract by selling it back to the market? Otherwise, as AI ... We primarily use Rust as it enables us to write code that operates at almost every layer of our ...

... in signed contracts across commercial and US government customers - we're mass-producing the ... This spectrum includes GNC algorithms (Rust, C++), application software on flight computers (Rust ...

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Rust Contract information

What types of projects and teams do Rust contract developers typically work on, and how is collaboration managed in these environments?

Rust contract developers are often brought on to contribute to high-performance systems, such as blockchain infrastructure, network services, or embedded applications. They usually join agile, cross-functional teams comprising other engineers, product managers, and sometimes DevOps professionals. Collaboration is managed through daily standups, code reviews, and regular communication via tools like Slack or GitHub. Contractors are expected to quickly familiarize themselves with project-specific codebases and processes, contributing clean, maintainable code while adhering to established development standards.

What is the difference between Rust Contract vs Rust Developer?

AspectRust ContractRust Developer
Required CredentialsExperience with Rust, contract law knowledge (if applicable)Proficiency in Rust programming, coding certifications
Work EnvironmentProject-based, freelance or consultingFull-time or part-time employment, in-house or remote
Industry UsageUsed in blockchain, smart contracts, and software projectsDevelops software applications, systems, or tools

The main difference is that a Rust Contract typically refers to a contractual role involving Rust skills, often project-based or freelance, focusing on specific deliverables. A Rust Developer is a full-time or part-time professional who writes and maintains Rust code within a company or organization. Both roles require Rust proficiency, but their work settings and responsibilities differ.

What are Rust contract developers?

Rust contract developers are programmers who specialize in writing smart contracts using the Rust programming language, commonly for blockchain platforms like Solana, NEAR, and Polkadot. These developers use Rust's safety and performance features to create secure and efficient decentralized applications (dApps) and protocols. Their work involves designing, coding, testing, and deploying smart contracts, ensuring that they function correctly and securely on the blockchain.

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

To thrive as a Rust Smart Contract Developer, you need strong proficiency in Rust programming, blockchain fundamentals, and experience with smart contract development, often supported by a relevant degree or certifications. Familiarity with tools like Cargo, testing frameworks, and blockchain platforms such as Solana or NEAR is essential. Attention to detail, problem-solving ability, and effective communication are crucial soft skills for collaborating with teams and ensuring secure code. These skills are vital to building reliable, efficient, and secure smart contracts that meet project requirements and industry standards.
What are the most commonly searched types of Rust jobs in California? The most popular types of Rust jobs in California are:
What are popular job titles related to Rust Contract jobs in California? For Rust Contract jobs in California, the most frequently searched job titles are:
What job categories do people searching Rust Contract jobs in California look for? The top searched job categories for Rust Contract jobs in California are:
What cities in California are hiring for Rust Contract jobs? Cities in California with the most Rust Contract job openings:
Infographic showing various Rust Contract job openings in California as of June 2026, with employment types broken down into 6% Full Time, 91% Contract, and 3% Nights. Highlights an 79% Physical, 3% Hybrid, and 18% Remote job distribution.

Semiotic Labs - Rust Engineer

De Circle

San Francisco, CA • On-site, Remote

$67.75 - $91/hr

Full-time

Posted 12 days ago


Job description

We are a team of multidisciplinary experts in artificial intelligence, cryptography, and software engineering who collaborate to build solutions for unsolved problems in web3. We work on challenges such as trust-minimized micropayments, low-latency request processing, data verification, and dynamic pricing. We've published research at prestigious AI conferences like NeurIPS and developed novel optimization algorithms. We make web3 smarter and verifiable.
We are a core developer of The Graph protocol ($1B+ market cap), an indexing protocol for organizing and accessing the world's data. We are also the parent company of Odos, a market-leading liquidity aggregator that supports $5B+ in monthly trading volume.
You can learn more about Semiotic Labs at semiotic.ai or by watching this presentation.
The Role
We're looking for a Rust Engineer who's excited about building scalable, cryptographically secure systems for web3 infrastructure. You'll work on GraphTally, implementing performant, reliable components that enable stateless, one-way payment channels at scale. This role is ideal for someone who thrives on solving protocol design challenges and building robust, production-ready Rust code.
This role is perfect for those who thrive in a multidisciplinary team solving complex, unsolved problems through research and engineering. You'll excel here if you're excited about working on a small, agile team where your daily work drives innovation-both internally and across the web3 ecosystem. Above all, you should be passionate about delivering real value to users.
What You'll Do
  • Design, implement, and maintain core components of the GraphTally protocol in Rust.
  • Collaborate with researchers and protocol engineers to refine and evolve the architecture.
  • Optimize signature verification, message processing, and batching for high-throughput performance.
  • Implement secure state transition logic, trust-minimized payment flows, and smart contract interactions.
  • 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.

Contribute to technical documentation, specifications, and developer tooling to support GraphTally adoption.
  • 3+ years of professional experience writing high-performance, production-quality async code in Rust.
  • Experience in designing and implementing remote APIs (REST, JSON-RPC, gRPC)
  • Experience in responsive microservices design and development
  • Experience with databases (Postgres, Redis)
  • Experience with Docker.
  • Deep understanding of cryptographic primitives, especially ECDSA and digital signature schemes.
  • Proficient with Rust's async/await model, leveraging futures, tokio, or async-std
  • Understanding of asynchronous state machines for managing complex protocol flows
  • Familiarity with zero-knowledge proofs, state/payment channels, or escrow mechanisms is a plus.
  • Strong grasp of trust-minimized systems, distributed protocols, or payment rails in a web3 context.
  • Experience working with Ethereum L2s (like Arbitrum, Optimism) and integrating with smart contracts.
  • Proficiency with testing, benchmarking, and debugging asynchronous Rust applications in the context of web3, using tools like anvil.
  • Clear communication, curiosity, and a strong sense of ownership.
Bonus Points
  • Familiarity with The Graph protocol or Indexer infrastructure.
  • Exposure to decentralized microservice architectures or multi-agent systems.
  • Prior work on gas-optimized smart contracts or cryptographic batch verification.
  • Experience with zkSNARKs, RAVs, or verifiable off-chain aggregation techniques.
Why Join Semiotic Labs
  • Be part of a small, high-caliber team solving cutting-edge problems in decentralized infrastructure.
  • Work on a deeply technical and meaningful mission that helps scale web3.
  • Shape the direction of a foundational protocol used by agents and services across the ecosystem.
  • Fully remote, async-friendly team with competitive compensation and token upside.