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Contract Engineer Jobs in California (NOW HIRING)

De Circle

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.

ThunderSoft

Contracts Specialist

San Diego, CA · On-site

The role partners closely with sourcing, engineering, and legal teams to develop contract strategies that protect company's business interests, intellectual property, and technology leadership ...

ThunderSoft

Contracts Specialist

San Diego, CA · On-site

... Engineering, Sourcing, Finance, and Supply Chain teams Contract process improvement and contract lifecycle management systems administration Technologies / Knowledge Required Electronic Design ...

Meta

Contract Manufacturing Manager

Sunnyvale, CA · On-site

$151K - $210K/yr

Meta is currently seeking a Contract Manufacturing Manager that will lead and be responsible for ... You will work closely with Hardware engineering, Operations, Finance, Legal, Supply Chain Strategy ...

Meta

Contract Manufacturing Manager

Sunnyvale, CA

$151K/yr

You will work closely with Hardware engineering, Operations, Finance, Legal, Supply Chain Strategy ... Contract Manufacturing Manager Responsibilities: * Identify and engage the Contract Manufacturer ...

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Contract Engineer information

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How much do contract engineer jobs pay per hour?

As of Aug 6, 2026, the average hourly pay for contract engineer in California is $48.29, according to ZipRecruiter salary data. Most workers in this role earn between $40.58 and $50.05 per hour, depending on experience, location, and employer.

What is a contract engineer?

Contract Engineers are professionals who manage and oversee contracts related to engineering projects. They are responsible for drafting, evaluating, negotiating, and executing contracts between companies and clients, vendors, or subcontractors. Their work ensures that all terms and requirements are clear, legal, and beneficial to all parties involved. Contract Engineers also help resolve disputes, monitor compliance, and manage project risks related to contractual obligations.

What is the difference between Contract Engineer vs Project Engineer?

AspectContract EngineerProject Engineer
CredentialsBachelor's in Engineering, relevant certifications (e.g., PE, PMP)Bachelor's in Engineering, relevant certifications (e.g., PMP)
Work EnvironmentTemporary or project-specific roles, often freelance or consultingPermanent or long-term roles within projects
Employer & Industry UsageOil & gas, construction, manufacturing, consulting firmsConstruction, engineering firms, infrastructure projects
Common Search & ComparisonYesYes

Contract Engineers typically work on a temporary basis, focusing on specific projects or tasks, often with consulting firms or as freelancers. Project Engineers are usually employed full-time within organizations, managing ongoing projects from start to finish. Both roles require engineering credentials and certifications, but their employment types and work environments differ significantly.

What are some common challenges contract engineers face when managing multiple projects simultaneously?

Contract Engineers often juggle several projects at once, each with distinct timelines, client expectations, and compliance requirements. A common challenge is ensuring effective communication across all stakeholders while maintaining meticulous documentation and meeting strict deadlines. Balancing these responsibilities requires strong organizational skills and adaptability to shifting project priorities. Collaborating closely with legal, procurement, and technical teams is essential to resolve issues quickly and keep projects on track.

What does a contract engineer do?

As a contract engineer, you provide temporary support for a company that needs help. In this role, you may help design a product or structure, provide guidance to builders working off of your plans, or evaluate a company's existing system to be sure the proposed engineering plan matches their capabilities. Many aspects of this job depend on the type of engineering support a company needs. For example, some contract engineers focus heavily on the mechanical aspects of a project, while others help hire contractors, evaluate proposals, and answer questions related to the project.

What are the key skills and qualifications needed to thrive as a contract engineer, and why are they important?

To thrive as a Contract Engineer, you need a solid background in engineering principles, contract management, and project planning, typically supported by a relevant engineering degree. Familiarity with contract management software, procurement systems, and industry-specific regulations or certifications such as PMP or NEC is often required. Strong negotiation, attention to detail, and effective communication skills help you manage client expectations and resolve contract disputes. These abilities ensure contracts are delivered on time, within budget, and meet both technical and legal requirements.
More about Contract Engineer jobs
What are the most commonly searched types of Engineer jobs in California? The most popular types of Engineer jobs in California are:
What are popular job titles related to Contract Engineer jobs in California? For Contract Engineer jobs in California, the most frequently searched job titles are:
What job categories do people searching Contract Engineer jobs in California look for? The top searched job categories for Contract Engineer jobs in California are:
What cities in California are hiring for Contract Engineer jobs? Cities in California with the most Contract Engineer job openings:
What are popular job titles related to Contract Engineer jobs in CA? For Contract Engineer jobs in CA, the most frequently searched job titles are:
Contract Engineer jobs near you
Infographic showing various Contract Engineer job openings in California as of August 2026, with employment types broken down into 49% Full Time, 13% Temporary, and 38% Contract. Highlights an 87% In-person, and 13% Remote job distribution, with an average salary of $100,448 per year, or $48.3 per hour.

Semiotic Labs - Rust Engineer

De Circle

San Francisco, CA • On-site, Remote

$67.75 - $91/hr

Full-time

Re-posted 10 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.

Apply