HQ: Brooklyn, United States • Blockchain & Crypto • Cybersecurity • 51-200 employees • Hiring 7
Trail of Bits is a cybersecurity research, engineering, and consulting firm that specializes in software assurance, cryptography, and advanced threat modeling. The company provides deep code audits, penetration testing, and security evaluations for complex digital systems, including smart contracts, AI/ML pipelines, and cloud infrastructure. Known for its strong focus on open source, it actively develops public security tools, conducts government-backed research, and advances industry-wide software security standards.
No named decision-maker yet.
Careers mailbox is known
$160k – $200k per year • Senior • Remote (United States) • Relocation • Full-Time • Senior
Rust
Solidity
AI/ML
Model Context Protocol
AI Agents
Cybersecurity
Empire
Web3
Slither
HQ: San Francisco, United States • Cryptocurrencies • Crypto Exchanges • 5000+ employees • Est. 2012 • Trust A • Hiring 199, 11 new
Coinbase is an American cryptocurrency company founded in 2012 that operates the largest regulated digital asset exchange in the United States. It serves retail customers through a consumer app and advanced trading interface, institutions through prime brokerage and custody, and developers through infrastructure including the Base layer-two network and staking services. Listed on Nasdaq since its 2021 direct listing and run as a remote-first company, it also co-founded the USDC stablecoin with Circle and derives a growing share of revenue from subscriptions, custody fees and blockchain rewards rather than trading commissions alone.
Fred Ehrsam · Co-Founder · decision-maker
Brian Armstrong · Co-Founder & Chief Executive Officer · decision-maker
Brian Brooks · Executive Officer · decision-maker
Jeff Horowitz · Executive Officer · decision-maker
No careers mailbox known
≈ $151k – $261k per year (Estimated) • Senior • 5+ years exp • United States • Remote (United States) • Senior
Solidity
Go
Web3
Smart Contracts
Ethereum
DeFi
HQ: Dublin, Ireland • Cloud Consulting & Migration • Custom Software Development • AI Consulting & Integration • 51-200 employees • Est. 2024 • Trust C • Hiring 11
Kimber is an architecture-led AI engineering company based in Dublin, Ireland that partners with startups and growing companies to architect, build and scale intelligent software. They provide end-to-end services including AI-native applications (RAG, agents, model orchestration), multi-tenant SaaS platforms, data & AI infrastructure (pipelines, feature stores, model serving), and platform modernisation from legacy to cloud-native. Kimber offers a product called KimberCloud and leverages AWS Premier Tier capabilities; provides observability, autoscaling, and production-focused engineering with a six-phase architecture-led delivery process.
No named decision-maker yet.
Careers mailbox is known
≈ $102k – $190k per year (Estimated) • Middle • 4+ years exp • Remote (United States) • Full-Time • Middle
Solidity
Web3
DeFi
dYdX
LayerZero
Smart Contracts
≈ $120k – $268k per year (Estimated) • Middle • 3+ years exp • Remote (United States) • Bachelor's Degree • Contractor • Middle
Solidity
Web3
Smart Contracts
DeFi
Account Abstraction
dYdX
LayerZero
≈ $137k – $237k per year (Estimated) • Senior • 5+ years exp • Remote (United States) • Bachelor's Degree • Full-Time • Senior
Solidity
Node JS
JavaScript
Frontend
React.js
DevOps
Docker
AWS
Web3
Smart Contracts
DeFi
dYdX
LayerZero
+2
HQ: New York, United States • Web3 & dApps • Blockchain Infrastructure • Est. 2018 • Startup • Trust C • Hiring 13
Offchain, also known as Offchain Labs, is a New York blockchain infrastructure company that built Arbitrum, a widely used Ethereum layer-2 scaling technology, and now offers enterprise services for tokenized assets, trading, settlement and custom chains. Founded in 2018 by Princeton computer scientists including Ed Felten and Steven Goldfeder, it contributed to the Ethereum move to proof of stake through the Prysm client and acquired ZeroDev, a smart wallet and developer tooling provider. It hires backend engineers working in Rust and on Nitro, offensive security engineers and penetration testers, solutions architects, finance and accounting leaders and business development staff.
No named decision-maker yet.
Careers mailbox is known
≈ $174k – $338k per year (Estimated) • Head+ • 8+ years exp • Remote (United States) • Full-Time • Architect
Rust
Solidity
Go
Web3
Arbitrum
Aave
Smart Contracts
Ethereum
ZeroDev
HQ: New York, United States • Data Centers & Colocation • Mining & Staking • Investment Banking & M&A Advisory • Hedge Funds & Alternative Investments • Asset Management & Funds • 501-1000 employees • Est. 2018 • NASDAQ: GLXY • Trust A • Hiring 33, 4 new
Galaxy Digital is a financial services and investment management firm specializing in digital assets, cryptocurrency, and blockchain technology. Founded by Michael Novogratz, the company serves as a bridge between traditional finance and the crypto ecosystem through institutional trading, asset management, investment banking, and mining operations. Additionally, it has expanded into digital infrastructure, providing data center capabilities to support high-performance computing, artificial intelligence, and decentralized networks.
No named decision-maker yet.
No careers mailbox known
≈ $199k – $319k per year (Estimated) • Lead • 10+ years exp • Remote (likely United States) • Bachelor's Degree • Staff
Rust
Solidity
AI/ML
AI Agents
Tokenization
DevOps
Docker
Kubernetes
HPC
Cybersecurity
Threat Modeling
PKI
Web3
Solana
Smart Contracts
Staking
DeFi
+5
New York • Blockchain Infrastructure • 11-50 employees • Est. 2021 • Trust B • Hiring 5
Windranger facilitates the growth of Mantle and web3 ecosystems by partnering with builders to architect extraordinary cultures globally.. Our purpose is to accelerate the capability of the internet by empowering communities through elevated ways of working.
No named decision-maker yet.
No careers mailbox known
Junior • 2+ years exp • Remote (APAC) • Bachelor's Degree • Full-Time • Junior
Go
Python
Solidity
DevOps
Chaos Engineering
Web3
Foundry
Hardhat
Mantle Network
EigenLayer
Smart Contracts
Ethereum
Ethena
+3
Junior • 1+ year exp • Remote (APAC) • Bachelor's Degree • Full-Time • Junior • English
Rust
Solidity
Web3
Solana
Optimism
Mantle Network
EigenLayer
Smart Contracts
Ethereum
Ethena
Rollup
+2
HQ: Buenos Aires, Argentina • Nonprofits & Foundations • Cryptocurrencies • Mining & Staking • Blockchain Infrastructure • 11-50 employees • Est. 2018 • Hiring 2
The Nomic Foundation is an organisation with roots in Buenos Aires that maintains Hardhat, one of the most widely used Ethereum development environments. Its tooling covers compilation, testing, debugging and deployment for smart contract engineers. The foundation is funded to work on developer experience as public infrastructure rather than as a commercial product.
No named decision-maker yet.
No careers mailbox known
≈ $92k – $203k per year (Estimated) • Senior • 5+ years exp • Remote (AMER, Europe, ET hours) • Full-Time • Senior
Rust
Go
C#
TypeScript
C++
Java
Solidity
Web3
Hardhat
Ethereum
+1
≈ $88k – $257k per year (Estimated) • Lead • 6+ years exp • Remote (AMER, Europe, ET hours) • Full-Time • Senior
Rust
Solidity
TypeScript
Web3
Ethereum
Hardhat
HQ: San Francisco, United States • Online Brokerage & Trading Platforms • Est. 2024 • Hiring 1
Stand is a prediction market trading platform that lets users browse markets from Polymarket and Kalshi sorted by volume. It was started by repeat founders and hires engineers to extend its trading product. The company is headquartered in San Francisco, California, United States.
No named decision-maker yet.
No careers mailbox known
$110k – $190k per year • Junior • 2+ years exp • New York • Remote (United States) • Full-Time • Junior
Rust
Solidity
TypeScript
JavaScript
Databases
DynamoDB
DevOps
Amazon ECS
Docker
AWS
Web3
Smart Contracts
Ethereum
+2
HQ: Dover, United States • Marketplaces • Artificial Intelligence • Blockchain & Crypto • Financial Data & Market Intelligence • Blockchain Analytics • Cryptocurrencies • 51-200 employees • Est. 2013 • Trust B • Hiring 6
CoinMarketCap is a cryptocurrency data website that tracks prices, trading volumes and market capitalisation for thousands of digital assets and the exchanges that list them. Founded in 2013 and acquired by Binance in 2020, it offers free charts and historical data, a data API for developers and businesses, educational content and portfolio and on-chain tracking tools. The company is headquartered in Dover, Delaware, United States.
No named decision-maker yet.
No careers mailbox known
≈ $30k – $66k per year (Estimated) • Middle • 3+ years exp • Remote (Singapore) • Bachelor's Degree • Contractor • Middle
Solidity
TypeScript
JavaScript
Python
Solidity
Truffle
DevOps
GitHub
Web3
Foundry
Ethers.js
Hardhat
Web3.js
Chainlink
Smart Contracts
Ethereum
QA
Gatling
k6
+7
HQ: Singapore • Blockchain & Crypto • 51-200 employees • Est. 2022 • Startup • Trust C • Hiring 13
Startale Group builds Web3 infrastructure including blockchain networks and developer tooling for mass-market applications. Its team is behind the Astar and Soneium ecosystems. The company is headquartered in Singapore.
No named decision-maker yet.
No careers mailbox known
≈ $47k – $103k per year (Estimated) • Senior • 4+ years exp • Singapore • Remote (Japan, Singapore) • Senior
TypeScript
JavaScript
Solidity
AI/ML
Cursor
Claude
Copilot
Frontend
Zustand
Next.js
Remix
TanStack Start
React.js
Mobile
State Management
Web3
Remix
Account Abstraction
Ethereum
QA
Playwright
+8
Brussels • Management Consulting • Recruiting & Staffing • 51-200 employees • Hiring 5
IESF Group is a Swiss recruitment and management consulting firm working in Switzerland, Bulgaria and Eastern Europe. It recruits AI and ML engineers, cloud solutions engineers, PHP and Java developers for clients such as a supplier of eCustoms software to European Union institutions, with roles in Brussels, Luxembourg and Vienna. The firm is based in Switzerland.
No named decision-maker yet.
Careers mailbox is known
≈ $151k – $266k per year (Estimated) • Senior • 3+ years exp • Remote (United States) • Full-Time • Senior
Solidity
Node JS
JavaScript
Web3
Tenderly
Smart Contracts
Ethereum
DeFi
HQ: New York, United States • Blockchain Analytics • Smart Contracts & Security • 501-1000 employees • Est. 2018 • Startup • Trust C • Hiring 28
CertiK is a blockchain security company that specializes in auditing smart contracts and blockchain protocols. It offers security audits monitoring tools and risk assessment services to help projects identify vulnerabilities and improve the safety of decentralized applications and digital assets.
Ronghui Gu · Executive Officer, Director · decision-maker
Yaxin Cao · Director
Hanqing Yu · Director
Tian Cheng · Director
No careers mailbox known
≈ $148k – $262k per year (Estimated) • Senior • Remote (United States) • Bachelor's Degree • Full-Time • Senior • English
Rust
Solidity
Go
Web3
Smart Contracts
≈ $79k – $207k per year (Estimated) • Middle • 3+ years exp • Remote (United States) • Full-Time • Middle
Solidity
Java
Web3
Smart Contracts
Ethereum
Polygon
Aave
≈ $119k – $266k per year (Estimated) • Junior • 1+ year exp • Remote (United States) • Bachelor's Degree • Full-Time • Junior
Rust
Move
Solidity
Python
Cybersecurity
Threat Modeling
Web3
Solana
Cosmos
Smart Contracts
DeFi
BNB Smart Chain
PancakeSwap SDK
+3
Web3 & dApps • Blockchain Infrastructure • Hiring 1
Subzero Labs is building Rialo, a programmable network that brings the real-world internet onchain with a familiar user experience for decentralised applications. It is backed by Pantera Capital, Coinbase Ventures and Variant and hires engineering managers from teams at Mysten Labs, Diem, Apple, Netflix and Google. The company is based in the United States.
No named decision-maker yet.
No careers mailbox known
≈ $114k – $283k per year (Estimated) • Lead • 6+ years exp • Remote (location not specified) • Full-Time • Staff
Rust
Solidity
Go
Web3
Smart Contracts
DeFi
Cosmos
MEV
Cosmos SDK
HQ: San Francisco, United States • HR & Recruiting AI • Recruiting & Staffing • Likely startup • Trust A • Hiring 90, 10 new
Rockstar is a recruiting company that combines human recruiters with AI tools to fill roles for its clients at lower cost than traditional agencies. It sources candidates and runs personalised multi-step outreach sequences sent under its own name or on behalf of the client team, recruiting engineers, account executives, business development and sales leaders. The company is headquartered in San Francisco, California, United States.
No named decision-maker yet.
Careers mailbox is known
≈ $118k – $265k per year (Estimated) • Staff+ • Remote (United States, India, United Kingdom, Australia, Canada) • Architect
Yul
Solidity
DevOps
GitHub
Web3
Foundry
Uniswap
Smart Contracts
DeFi
MEV
Arbitrum
Unichain
Ethereum
+3
≈ $125k – $272k per year (Estimated) • Remote (United States) • Full-Time
Solidity
Yul
TypeScript
DevOps
Git
Web3
Foundry
Unichain
Smart Contracts
DeFi
Ethereum
+1
HQ: Seattle, United States • Fraud Detection • AI Content Detection • 51-200 employees • Startup • Trust B • Hiring 7
Protect your digital identity in real-time. Loti AI stops AI impersonation, deepfakes, and fraud before they can spread or cause damage.
No named decision-maker yet.
Careers mailbox is known
≈ $118k – $265k per year (Estimated) • Staff+ • Remote (United States) • Contractor • Architect
Solidity
Web3
Smart Contracts
Trust D • Hiring 27
KEY TO WEB3™. KEY TO WEB3™ is an elite global recruitment and consulting agency for specialized talent solutions.
No named decision-maker yet.
Careers mailbox is known
≈ $136k – $262k per year (Estimated) • Lead • Remote (United States) • Full-Time • Staff
Solidity
Node JS
TypeScript
JavaScript
Databases
PostgreSQL
Frontend
React.js
DevOps
AWS
Web3
Smart Contracts
Account Abstraction
Solana
+2
Likely inactiveVerified live · 1 hour ago
1 year ago
Long shot · 3%
QA Engineer
≈ $83k – $190k per year (Estimated) • Remote (United States) • Full-Time
Solidity
Solidity
Truffle
DevOps
CI/CD
Web3
Foundry
Hardhat
Solana
Smart Contracts
Ethereum
DeFi
QA
Selenium
Cypress
Playwright
WebDriverIO
+5
≈ $148k – $260k per year (Estimated) • Senior • 5+ years exp • Remote (United States) • Contractor • Senior
Solidity
Web3
Smart Contracts
HQ: Moscow, Russia • Job Boards & Aggregators • 51-200 employees • Trust D • Hiring 138
Jooby is a niche IT recruitment platform, career management portal, and specialized job marketplace for software engineering and technology talent. Headquartered in Moscow, Russia, the platform serves developers, technical specialists, and IT employers across Eastern Europe, the CIS region, and global remote markets. Its core offerings include a targeted IT job board specializing in high-demand stacks, mandatory salary range transparency, direct candidate-to-employer communication, automated job distribution via dedicated tech career channels, and streamlined vacancy publishing tools for technology companies and staffing recruiters.
No named decision-maker yet.
No careers mailbox known
$24k – $48k per year • Middle • 3+ years exp • Remote (location not specified) • Bachelor's Degree • Full-Time • Middle • Russian • English
Node JS
TypeScript
Solidity
JavaScript
Web3
Ethers.js
Web3.js
Ethereum
DeFi
HQ: San Francisco, United States • Web3 & dApps • Blockchain & Crypto • 11-50 employees • Est. 2023 • Startup • Trust D • Hiring 14
Ritual is building an execution layer that lets smart contracts call artificial intelligence models with verifiable results. Its infrastructure handles inference, proof of correct execution and payment for model providers. The project targets applications that need on-chain access to machine learning without trusting an operator.
No named decision-maker yet.
Careers mailbox is known
≈ $125k – $273k per year (Estimated) • Remote (United States)
Solidity
TypeScript
Python
DevOps
CloudFormation
Terraform
AWS
Web3
Foundry
Viem
Smart Contracts
Ethereum
+2
≈ $124k – $264k per year (Estimated) • Remote (United States)
Rust
TypeScript
Python
Solidity
Web3
Foundry
Smart Contracts
Ethereum
≈ $129k – $282k per year (Estimated) • Remote (United States)
Rust
Solidity
Web3
Geth
Smart Contracts
Ethereum
HQ: San Francisco, United States • Asset Tokenization • Blockchain Infrastructure • Est. 2020 • Startup • Trust B • Hiring 4
Espresso Systems builds shared sequencing and confirmation infrastructure for Ethereum rollups. Its marketplace lets independent rollups coordinate transaction ordering so they can interoperate without giving up their own execution. The company publishes its protocol research and software as open source.
No named decision-maker yet.
Careers mailbox is known
≈ $131k – $258k per year (Estimated) • Equity • Lead • 1+ year exp • Remote (United States) • Full-Time • Staff
Rust
Solidity
Web3
Foundry
Slither
Smart Contracts
Ethereum
Polygon
AltLayer
Hyperlane
+1
HQ: Boston, United States • Real Estate Investment • Cryptocurrencies • 11-50 employees • Est. 2020 • Startup • Trust B • Hiring 7
Groma is a real estate company behind GromaCoin, an onchain asset backed by real estate, and operates through Groma NAV REIT. Its portfolio includes the Mosaic property in Lynn, Massachusetts, and it hires property managers, maintenance technicians and blockchain engineers. The company is headquartered in Boston, Massachusetts, United States.
No named decision-maker yet.
Careers mailbox is known
$175k – $250k per year • Lead • Boston • Remote (United States) • Full-Time • Principal
Solidity
TypeScript
JavaScript
Python
Python
Django
Databases
PostgreSQL
AI/ML
Tokenization
Frontend
React.js
DevOps
GCP
Web3
Ethereum
Uniswap
Smart Contracts
DeFi
Morpho
+6
