We are a game development and Web3 innovation company building blockchain-powered gaming platforms, token ecosystems, and decentralized applications. We are looking for a talented Web3 DApp Developer to join our team and contribute to the development of innovative blockchain products.

Responsibilities

1. Design, develop, and maintain Web3 decentralized applications (DApps).
2. Integrate smart contracts with frontend and backend systems.
3. Implement wallet connectivity using solutions such as MetaMask and WalletConnect.
4. Develop secure and scalable blockchain-based features.
5. Collaborate with smart contract, frontend, and backend developers.
6. Participate in code reviews, testing, and performance optimization.
7. Troubleshoot and resolve blockchain-related technical issues.
8. Contribute to architecture and technical design discussions.

Requirements

1. Proven experience building Web3 applications.
2. Strong knowledge of JavaScript and TypeScript.
3. Experience with React.js, Next.js, or similar frontend frameworks.
4. Experience integrating wallets and blockchain networks.
5. Strong understanding of smart contract interaction.
6. Experience with Web3 libraries such as Ethers.js, Web3.js, Wagmi, or Viem.
7. Familiarity with blockchain security best practices.
8. Experience using Git and collaborative development workflows.

Preferred Qualifications

1. Experience with Solidity smart contracts.
2. Experience with Ethereum, Polygon, BNB Chain, Solana, or other blockchain ecosystems.
3. Experience developing DeFi, NFT, GameFi, or token-sale applications.
4. Understanding of token standards such as ERC-20, ERC-721, and ERC-1155.
5. Experience working in gaming, blockchain, or startup environments.

What We Offer

1. Fully remote position.
2. Flexible working hours.
3. Opportunity to work on innovative Web3 and gaming projects.
4. Long-term collaboration opportunities.
5. Competitive compensation based on experience and qualifications.

Application Requirements

Please include:

1. Resume or LinkedIn profile.
2. GitHub profile.
3. Portfolio of previous Web3 projects.
4. Relevant blockchain experience.
5. Availability and expected compensation.

We look forward to hearing from passionate Web3 developers who are excited about building the future of decentralized applications.]]> Jun 18, 2026 Jun 18, 2026 https://www.cryptojobs.com/index.php/job/web3-dapp-developer-remote-12463 12463 Jun 18, 2026 open full-time Engineering 60 USD / Hour Remote Aug 15, 2026 No No ]]>What you'll do

1. Building and maintaining backend APIs and services
2. Designing scalable architecture for marketplace and asset workflows
3. Integrating with blockchain smart contracts (event listening, indexing, data sync)
4. Managing off-chain logic for listings, users, and transactions
5. Working closely with frontend and smart contract engineers
6. Designing data models for real-world asset tokenization flows

What we're looking for

1. Strong backend development experience in Node.js
2. Experience building production-grade APIs and services
3. Understanding of databases (SQL and/or NoSQL)
4. Experience working with distributed systems or scalable architectures
5. Ability to write clean, maintainable, and well-structured code

Nice to have

1. Experience with blockchain or Web3 systems
2. Familiarity with smart contracts (Solidity, EVM ecosystems)
3. Experience with event-driven architecture or message queues
4. Knowledge of authentication, security, and access control systems

Tech Stack

Node.js, React / Next.js, Ethereum + L2, Solidity, IPFS + off-chain databases

Why this role

1. High ownership of backend architecture
2. Early-stage equity / token upside
3. Real impact on system design and scalability
4. Close collaboration with core team

Compensation

Flexible (depending on experience) · Equity / token allocation · Remote-first setup

How to apply

1. GitHub / portfolio
2. Backend systems or APIs you've built
3. Short note on your experience with backend architecture and blockchain systems

]]> Jun 16, 2026 Jun 16, 2026 https://www.cryptojobs.com/index.php/job/backend-engineer-12459 12459 Jun 16, 2026 open part-time Fullstack Development 60 USD / Hour Remote No No ]]>What you'll do

1. Build frontend features in React / Next.js
2. Work on backend APIs and services in Node.js
3. Integrate smart contracts into the product (wallets, transactions, state updates)
4. Handle blockchain interactions using ethers.js / similar tools
5. Work with on-chain data (events, reads, writes, indexing basics)
6. Help connect frontend, backend, and smart contracts into one system
7. Fix issues and ship features quickly

What we're looking for

1. Strong experience with JavaScript / TypeScript
2. Good hands-on experience with React / Next.js
3. Experience building backend services with Node.js
4. Basic understanding of blockchain (wallets, transactions, smart contracts)
5. Experience integrating Web3 libraries (ethers.js)
6. Comfortable working in early-stage environments where things change fast
7. Able to work independently and figure things out

Nice to have

1. Solidity experience or ability to read smart contracts
2. Understanding of EVM ecosystems (Ethereum, Polygon, Arbitrum)
3. Exposure to DeFi or NFT projects
4. Experience with indexing (The Graph or event-based systems)
5. Startup / 0→1 product experience
6. Basic system design understanding

Tech Stack

React / Next.js, Node.js, Ethereum + L2, Solidity, IPFS + off-chain databases

Why this role

1. You’ll work on a real product, not an idea
2. Full-stack ownership across Web2 + Web3
3. Early-stage equity / token upside
4. Fast iteration, minimal process
5. Remote and flexible
6. Equity / token upside

Compensation

Flexible (depending on experience) · Equity / token allocation · Remote-first setup

How to apply

1. GitHub / portfolio
2. Projects you've built (frontend, backend, or Web3)
3. Short note on your experience with React + Node

]]> Jun 16, 2026 Jun 16, 2026 https://www.cryptojobs.com/index.php/job/full-stack-engineer-12458 12458 Jun 16, 2026 open full-time Blockchain Development 80 USD / Hour Remote No No ]]>The Role

We are hiring a Senior Blockchain Developer to design and build smart contract systems across multiple client and internal projects.

You will work on a variety of blockchain applications - from DeFi protocols to tokenized systems and Web3 platforms - ensuring high standards in security, scalability, and architecture.

This is a senior-level, hands-on role with exposure to multiple products and industries.

What You’ll Do

1. Design, develop, and deploy smart contracts using Solidity
2. Implement token standards (ERC-20, ERC-721, ERC-1155) and custom logic
3. Build and maintain contract architectures across multiple projects
4. Ensure security, audit readiness, and upgradeability
5. Optimize gas usage and performance
6. Collaborate with backend and frontend teams for integrations
7. Participate in code reviews and technical decision-making
8. Contribute to documentation and internal best practices

What We’re Looking For

1. 4+ years of experience in blockchain / smart contract development
2. Strong expertise in Solidity and EVM-based ecosystems
3. Experience with Ethereum and L2s (Polygon, Arbitrum, Optimism)
4. Solid understanding of smart contract security and vulnerabilities
5. Experience with Hardhat, Foundry, or similar frameworks
6. Strong software engineering fundamentals (testing, Git, CI/CD)
7. Ability to work across multiple projects and adapt quickly

Nice to Have

1. Experience with DeFi protocols, staking, or token economies
2. Experience working with auditors or security reviews
3. Familiarity with upgradeable contracts (proxy patterns)
4. Backend experience (Node.js / TypeScript)
5. Experience in client-facing or consulting environments

Tech Stack

Solidity · Ethereum · Polygon · Arbitrum

Hardhat / Foundry · Node.js · TypeScript

React · ethers.js · IPFS

Why Join

1. Work across a diverse portfolio of blockchain projects
2. Exposure to both client work and internal ventures
3. Opportunity to influence architecture and technical direction
4. Collaborative, globally distributed team
5. Fast-paced environment with continuous learning

What Success Looks Like

1. Secure, production-ready smart contracts delivered across projects
2. Successful audits with minimal critical issues
3. Scalable and reusable contract architectures
4. Strong collaboration with cross-functional teams
5. Consistent delivery across multiple initiatives

How to Apply

Please submit:

1. Resume or LinkedIn
2. GitHub profile (required)
3. Examples of smart contracts or blockchain projects

]]> Jun 09, 2026 Jun 09, 2026 https://www.cryptojobs.com/index.php/job/smart-contract-engineer-12450 12450 Jun 09, 2026 closed part-time Blockchain Development 70 USD / Hour Remote Jun 18, 2026 No No ]]>Location: US or EU only

We are looking for a skilled Blockchain Developer / Smart Contract Engineer to join our engineering team and help design, build, and maintain secure smart contracts for decentralised applications, DeFi products, and blockchain protocols.

The ideal candidate has strong Solidity and EVM experience, a solid understanding of DeFi mechanics, and a security-first mindset when developing and reviewing smart contract systems.

Responsibilities

1. Design, build, and maintain smart contracts for DeFi and blockchain applications.
2. Write secure, clean, gas-efficient, and maintainable Solidity code.
3. Develop and maintain automated tests using Foundry, Hardhat, Anchor, or similar frameworks.
4. Review smart contracts for security vulnerabilities, bugs, edge cases, and protocol-level risks.
5. Analyse and mitigate risks related to flash loans, oracle manipulation, MEV, governance attacks, and other DeFi threat vectors.
6. Use security and analysis tools such as Slither, Mythril, Echidna, Certora, Tenderly, or similar platforms.
7. Support audits, bug fixes, secure deployments, and post-deployment monitoring.
8. Optimise gas usage, storage layout, and contract performance.
9. Document technical decisions, protocol assumptions, and security considerations.

Requirements

1. Strong experience with Solidity and EVM-based smart contracts.
2. Hands-on experience with Foundry and/or Hardhat.
3. Good understanding of Ethereum, gas optimisation, storage layout, events, and upgradeable contract patterns.
4. Knowledge of DeFi concepts, including token standards, staking, lending, AMMs, bridges, vaults, and governance.
5. Ability to write secure, reliable, and maintainable smart contract code.
6. Experience testing, debugging, and reviewing smart contracts.
7. Understanding of common smart contract vulnerabilities, including reentrancy, access control issues, oracle risks, precision errors, and front-running.
8. Familiarity with OpenZeppelin libraries and proxy patterns.
9. Strong attention to detail, ownership, and clear communication skills.

Nice to Have

1. Experience with Rust, TypeScript, Solana, Anchor, NEAR, or other blockchain ecosystems.
2. Previous experience building or auditing DeFi protocols.
3. Knowledge of fuzz testing, formal verification, symbolic execution, or invariant testing.
4. Experience with Ethereum, Arbitrum, Base, Optimism, Solana, NEAR, or similar networks.
5. Experience with AMMs, lending protocols, bridges, staking systems, vaults, or governance mechanisms.
6. Familiarity with Tenderly, Etherscan, Blockscout, The Graph, or other blockchain monitoring and indexing tools.

What We Offer

1. Competitive salary.
2. Healthcare benefits.
3. Company-provided computer.
4. Paid holidays.
5. Flexible working hours.
6. Career growth opportunities.
7. A friendly, supportive, and collaborative engineering team.

You will work closely with frontend and backend engineers to design, develop, and deploy scalable blockchain-based features while ensuring security, performance, and reliability.

Responsibilities

1. Design, develop, test, and deploy smart contracts using Solidity.
2. Build and maintain decentralized application (DApp) functionality.
3. Integrate blockchain networks and smart contracts into web applications using ethers.js, wagmi, or web3.js.
4. Implement wallet connectivity and transaction flows using MetaMask and other popular Web3 wallets.
5. Develop user-facing features with React and Tailwind CSS.
6. Build and maintain backend services and APIs using Node.js and Express.
7. Integrate blockchain data with backend systems and databases.
8. Participate in architecture discussions and technical decision-making.
9. Write clean, maintainable, and well-documented code.
10. Ensure security best practices are followed throughout the development lifecycle.

Required Qualifications

1. Proven experience developing smart contracts with Solidity.
2. Strong understanding of Ethereum and EVM-compatible blockchains.
3. Experience with Web3 development tools and libraries such as ethers.js, wagmi, or web3.js.
4. Proficiency in React.js and modern JavaScript/TypeScript.
5. Experience with Node.js, Express, and MongoDB.
6. Familiarity with wallet integrations including MetaMask and WalletConnect.
7. Understanding of blockchain security concepts and smart contract vulnerabilities.
8. Experience using Git and collaborative development workflows.

Preferred Qualifications

1. Experience with Hardhat, Foundry, or similar development frameworks.
2. Knowledge of DeFi protocols, staking systems, token standards, or NFT platforms.
3. Experience deploying and maintaining applications on Ethereum or other EVM-compatible networks.
4. Familiarity with CI/CD pipelines and automated testing.
5. Experience building scalable production-grade Web3 applications.

Application Requirements

Please include the following with your application:

1. Resume or CV
2. GitHub profile
3. Portfolio or examples of blockchain-related projects
4. Brief summary of your experience with Solidity and Web3 development

We’re building a next-generation crypto trading platform with full copy trading functionality and an intuitive user experience. The platform uses React + TypeScript on the frontend and Express + TypeScript on the backend. You’ll help implement core trading features, risk management, third-party integrations, and seamless copy trading logic.

Requirements:

1. 5+ years of professional experience in full-stack development
2. Strong proficiency in React, TypeScript, Node.js, and Express
3. Experience with backend testing and trading or finance-related applications is a plus
4. Must be based in the US or EU
5. Strong problem-solving skills and excellent attention to detail
6. Experience integrating third-party APIs, especially trading platforms, payment providers, market data services, or crypto exchanges

Responsibilities:

1. Develop scalable frontend and backend components
2. Implement trading logic, risk checks, and copy trading features
3. Build and maintain third-party integrations for crypto trading, market data, wallet services, and exchange connectivity
4. Collaborate on design and architecture for a high-performance crypto trading website
5. Write and maintain tests for critical trading logic and risk-related workflows

Nice to Have:

1. Experience working with blockchain, cryptocurrency, or Web3 products
2. Familiarity with crypto exchange APIs such as Binance, Coinbase, Kraken, Bybit, OKX, or similar platforms
3. Understanding of wallets, on-chain transactions, smart contracts, and blockchain data providers
4. Experience with real-time market data, WebSockets, order execution flows, and portfolio tracking
5. Knowledge of crypto trading concepts such as spot trading, copy trading, risk limits, slippage, and liquidity

How to Apply:

Send your CV and portfolio links demonstrating relevant experience in trading, fintech, crypto, blockchain, or third-party platform integrations.]]> Jun 01, 2026 Jun 01, 2026 https://www.cryptojobs.com/index.php/job/crypto-trading-platform-engineer-12447 12447 Jun 01, 2026 closed full-time Blockchain Engineering 180,000 USD / Year Remote Jun 17, 2026 No No ]]>Role Summary

Rather Labs is looking for a senior Blockchain / Web3 Wallet Engineer to build secure wallet features for Web3 products.

You will work on wallet connections, transaction signing, token transfers, NFT support, smart contract interactions, and Web3 authentication.

This role is a good fit for someone with experience in blockchain development, wallets, smart contracts, and production-ready Web3 systems.

We are looking for an engineer who can take ownership, write clean and secure code, and work well with product, frontend, backend, and smart contract teams.

Duties/Responsibilities

1. Design, develop, test, and deploy smart contracts for Web3 products
2. Build blockchain features for DeFi platforms, wallets, GameFi, and ecosystem tools
3. Write secure and gas-efficient Solidity code
4. Create unit tests, integration tests, and deployment scripts
5. Integrate smart contracts with backend services, frontend apps, wallets, APIs, and blockchain infrastructure
6. Review existing smart contract code and suggest improvements
7. Support audits, security reviews, and vulnerability remediation
8. Monitor deployed contracts and help resolve production issues
9. Research new blockchain protocols, DeFi mechanics, and EVM improvements
10. Contribute to technical documentation and best practices

Required Skills

1. 3+ years of software development experience
2. 1–2+ years of experience in blockchain, Web3, crypto, or DeFi projects
3. Strong experience with Solidity and smart contract development in the EVM ecosystem
4. Good understanding of Ethereum / EVM architecture, gas optimization, token standards, and smart contract security
5. Experience with Web3 tools such as Hardhat, Foundry, Remix, MetaMask, Ethers.js, Web3.js, Viem
6. Experience deploying and maintaining smart contracts on testnet and mainnet
7. Knowledge of DeFi: AMMs, staking, lending, bridges, oracles, stablecoins, and liquidity pools
8. Backend integration experience: APIs, indexers, event listeners, wallets, or transaction services
9. Understanding of common blockchain security risks
10. Experience with JavaScript, TypeScript, Python, Node.js, or similar backend technologies
11. Familiarity with Git, CI/CD, testing frameworks, code reviews, and documentation

Nice to have

1. Experience with DeFi protocols (DEX, perps, lending)
2. Understanding of AMM models and perpetual mechanics
3. Experience building trading systems or financial primitives
4. Experience with oracles (Chainlink, Pyth, etc.)
5. Exposure to AI agents or automated trading systems
6. Open-source contributions in Web3 / DeFi

]]> May 23, 2026 May 23, 2026 https://www.cryptojobs.com/index.php/job/senior-blockchain-web3-engineer-12445 12445 May 23, 2026