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51 solidity developer jobs at 42 companies in Fairfield, CA

1mo
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Senior Software Engineer - Developer Platform
San Francisco or New York City
$196k-$265k/yr HybridFull Time
Pave
Pave: Cloud-based software for managing and benchmarking employee compensation.
4+ YOE4+ years in backend/infrastructure/developer experience; strong developer empathy; experience leading cross-team projects; familiarity with AI-assisted developer tooling; solid cloud (GCP) and production-systems skills.
TypeScript, Node.js, Orbstack, ClickHouse, Kubernetes, Terraform, GCP, Datadog, GitHub Actions, E2B, Incident.io
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1mo
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FSO Audit - Blockchain Developer - Senior - Bay Area (San Francisco, CA, US, 94105-2907)
San Francisco or San Jose
$123k-$213k/yr HybridFull Time
EY
EY: Global firm providing audit, tax, and professional consulting services.
3+ YOE3+ years application development; Bachelor's (or Master's) in CS/CE/Information Systems; strong blockchain, smart contract, and dApp knowledge; JavaScript/TypeScript, Node.js, React/Angular, Solidity/Ethereum experience; DB, testing, container, cloud, Git, Agile; travel and extended hours flexibility.
JavaScript, TypeScript, Node.js, Express, React, Angular, Ethereum, Solidity, Hyperledger, Solana, Jest, Mocha, NoSQL, SQL, Git, Docker, Podman, Azure, AWS, GCP
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2w
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Full Stack Software Engineer - Web3 (SF)
San Francisco, California, United States
$160k-$190k/yr HybridFull Time
Mesh
Mesh: Connecting digital wallets and exchanges for unified cryptocurrency payments.
3+ YOE3-6 years Web3 full-stack engineering experience; wallet integrations, on-chain/off-chain flows, Solidity and smart contract experience; frontend (TypeScript, React) and backend (Node.js, Go, C#, Java) familiarity; strong security and distributed-systems skills.
TypeScript, React, Redux, C#, Node.js, Go, Java, Solidity, Solana Anchor, Solana Web3.js
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2mo
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AI Engineer
San Francisco, California, United States
$180k-$250k/yr OnsiteFull Time
Fluency
Fluency: Automates enterprise process mapping and documentation with artificial intelligence.
Hands-on experience building LLM-powered features; production engineering in TypeScript/Node and/or Python; experience with multiple LLM providers; strong prompt engineering, retrieval and evaluation; track record of evaluation systems; solid software engineering.
TypeScript, Node.js, Python, AWS Lambda, ECS Fargate, OpenAI, Anthropic, Google Vertex, AWS Bedrock, pgvector
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3mo
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Software Engineer, Agent Evaluation and Quality
San Francisco or New York
OnsiteFull Time
Cursor
Cursor: AI-powered code editor for professional software developers.
Experience designing and operating evaluation/measurement systems; strong data acumen; solid software engineering fundamentals.
Python, SQL, Machine Learning, Data Pipelines, Dashboards
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3w
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Process Engineer/Scientist, Crystalization/Separation
Hayward, California, United States
$130k-$175k/yr OnsiteFull Time
Voya Energy
Voya Energy: Commercializing metal-based fuel systems for clean off-grid electricity.
Experience developing crystallization/separation processes, continuous multiphase reactor and filtration systems, solid handling/characterization, cross-functional collaboration, and working in fast-paced startup environments.
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2w
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Software Engineer, CDN Content
San Francisco or New York City
$172k-$258k/yr HybridFull Time
Vercel
Vercel: Frontend cloud platform for building and hosting web applications.
2+ YOE2+ years building and operating backend services; proficiency in Go or TypeScript/Node.js; solid HTTP and caching knowledge; experience operating tested, instrumented code and participating in on-call rotations.
Go, Lua, TypeScript, Node.js, Next.js, S3, ElastiCache, Redis, Memcached, Datadog, Honeycomb, Terraform, Kubernetes
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2mo
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Principal Engineer - Stablecoin
Jersey City or Seattle or Plano or San Francisco or Charlotte
$157k-$230k/yr HybridFull Time
Bank of America
Bank of AmericaNYSE: BAC: Provides global banking, investing, and financial risk management services.
Experience designing and building secure, scalable financial blockchain apps and smart contracts; multi-cloud, multi-region; cloud providers (AWS, GCP, Azure); web3 protocols; Solidity/Rust; cryptography; DeFi; code reviews and security analysis; integration with external systems.
Solidity, Rust, Web3, Truffle, Hardhat, Remix, Web3.js, Ethers.js, Terraform, AWS, GCP, Azure
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3mo
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Senior Software Engineer, Networking
San Francisco or New York
$200k-$250k/yr OnsiteFull Time
Peregrine
Peregrine: Data integration and analytics platform for public safety agencies.
5+ YOE5+ years in software or network engineering; strong Python/Go; solid networking fundamentals; cloud experience; distributed systems; in-office in SF/ NYC.
Python, Go, Terraform, Pulumi
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3mo
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Reliability Engineer
San Francisco, California, United States
$115k-$160k/yr OnsiteFull Time
Amperesand
Amperesand: Manufactures solid-state transformers for AI data centers and grids.
Drive end-to-end reliability for Solid-State Transformer platform; lead DFMEA/FTA; develop PoF models and RCA; collaborate cross-functionally.
DFMEA, FTA, PoF modeling, lab equipment (microscopes, X-ray), Oscilloscopes, Multimeters, ReliaSoft (Weibull++), ALTA, Ansys Sherlock, Python, MATLAB, R
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2mo
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Lead Software Engineer - Backend
San Mateo, California, United States
$168k-$208k/yr HybridFull Time
Freshworks
FreshworksNASDAQ: FRSH: Provides cloud-based customer support and IT management software.
6+ YOE6-8 years backend experience; Ruby on Rails; strong DSA, REST APIs, OOD/SOLID; system design; leadership potential; collaborative, agile mindset.
Ruby on Rails, REST APIs, RDBMS, Caching, Distributed Queues, Microservices, OOP, SOLID, AI tools and technologies
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3mo
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Senior Systems Engineer, Watch Software
Boulder or Cupertino or San Diego or Denver or San Francisco or San Diego
OnsiteFull Time
Apple
AppleNASDAQ: AAPL: Designs and sells consumer electronics, software, and online services.
8+ YOE8+ years software engineering experience; strong OS, performance and memory management; kernel/Darwin experience; power and performance analysis; solid CS fundamentals; excellent communication.
OS development, Performance analysis, Memory profiling, Kernel / Darwin
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3mo
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Lead SW Engineer - Crypto Program
Foster City, California, United States
$192k-$308k/yr HybridFull Time
Visa
VisaNYSE: V: Global payment technology facilitating electronic funds transfers.
10+ YOE10+ years of relevant work experience; strong Java, JavaScript/TypeScript; blockchain/DeFi knowledge; experience with SSDLC; CI/CD; payments domain knowledge.
Java, JavaScript, TypeScript, Solidity, Kubernetes, Docker, Angular, React
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3mo
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Senior Research Engineer, Solid Mechanics
San Francisco, California, United States
$185k-$200k/yr HybridFull Time
Gridware
Gridware: Real-time sensor platforms for power grid monitoring and safety.
3+ YOEPhD in Mechanical/Civil/Structural Eng with 3+ years experience, or MS with 6+ years; deep solid mechanics expertise; experience with nonlinear materials; proven experimental validation experience; Python/MATLAB proficiency; strong communication and leadership skills.
Python, MATLAB
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1mo
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Senior Software Engineer, Trust and Third Party Risk Management
United States or Toronto or San Francisco or New York City or London or Dublin or Tel Aviv or Sydney
$195k-$263k/yr RemoteFull Time
Vanta
Vanta: Automated security compliance and trust management software for businesses.
5+ YOE5+ years software engineering experience; strong TypeScript/React or backend Node.js skills; experience building production web applications; solid database and REST/GraphQL API design knowledge; collaboration and technical leadership.
TypeScript, React, Node.js, REST, GraphQL, AI agents, LLM APIs, OpenAI, Anthropic, eval frameworks
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3d
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Quant Developer
New York City or San Francisco or Los Angeles or United States or Canada
$175k-$200k/yr RemoteFull Time
Gauntlet: Provides risk management and yield curation for DeFi protocols.
2+ YOEExperience building production quantitative systems, strong Python and software-engineering skills, applied quantitative and optimization skills, SQL and data pipeline experience, production ownership and clear technical communication.
Python, SQL, TypeScript, BigQuery, Dagster, Hex, GCP, Kubernetes, Solidity, EVM, anvil
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3mo
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Chief Engineer (Aerospace)
Folsom or Reno or Huntsville or Long Beach or Remote
$195k-$250k/yr HybridFull Time
Voyager Technologies
Voyager TechnologiesNYSE: VOYG: Provides advanced defense and commercial space technology solutions.
15+ YOEBachelor's in mechanical or aerospace engineering; 15 years in solid rocket propulsion; leadership of cross-functional teams; security clearance eligibility.
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3mo
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Data Engineer
San Francisco, California, United States
OnsiteFull Time
Humble Robotics
Humble Robotics: Developing autonomous, electric, cabless heavy-duty freight haulers.
BS/MS/PhD in CS/Engineering/Robotics or equivalent; strong Python; solid DB fundamentals; ML data-pipeline familiarity; large codebase experience; eligible to work in the United States.
Python, SQL, Bazel, Monorepos, Dev Containers, Cloud (GCP or AWS), Data Catalogs/Feature Stores
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3w
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Mechanical Engineer
San Francisco or Houston
$140k-$175k/yr OnsiteFull Time
Mariana Minerals
Mariana Minerals: Building software-first infrastructure to produce and refine critical minerals.
Bachelor's in Mechanical Engineering, experience with mechanical equipment design, FEA and solids-handling, knowledge of ASME/API codes, AutoCAD proficiency, ability to lead equipment scopes from concept through commissioning.
AutoCAD, Finite element analysis (FEA), Multiphysics CFD
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3h
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Senior AI Engineer — Agents
San Francisco, California, United States
HybridFull Time
Mira Mace
Mira Mace: AI-powered healthcare advocacy and navigation for Medicare beneficiaries.
Experience building and shipping LLM-powered systems or agents, strong AI fluency (prompting, retrieval, evaluation), production monitoring, and solid software engineering practices.
Python, TypeScript, FastAPI, Next.js, Postgres
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