Front-End Engineer
BitMEX is a prominent cryptocurrency derivatives trading platform, known for its innovative approach to cryptocurrency trading and its emphasis on innovation, liquidity, and security.
BitMEX offers a sophisticated peer-to-peer crypto-products trading platform and API that serves hundreds of thousands of traders worldwide, handling billions of USD in transactions daily.
About Us
BitMEX is a pioneer in the crypto exchanges for derivatives space, catering especially to institutional and professional traders. It is renowned for introducing the Perpetual Swap, one of the most popular crypto trading products. BitMEX stands out as the leading exchange globally that consistently develops new cryptocurrency derivative products, such as the recent ETH Staking Swap.
Users on BitMEX are empowered to trade cryptocurrency derivatives on a professional and secure platform that offers high performance, deep liquidity, and continuous availability. Since its establishment in 2014, BitMEX has ensured the security of user funds, with no losses due to hacking incidents. Additionally, the platform supports spot trading, cryptocurrency purchase, and conversion, offering a wide range of derivatives contracts, spot trading pairs, and cryptocurrency conversion options.
We are seeking individuals who are dedicated, accountable, and collaborative to join the BitMEX team as we grow the cryptocurrency ecosystem. Values such as attention to detail, efficiency, and simplicity are highly regarded in our global business, operating 24/7. We look for candidates who are independent, adaptable, and interested in a work-life balanced approach.
Overview
The role of a Senior React Engineer at BitMEX involves working on the design and implementation of fast, real-time web applications. With a focus on React.JS, the BitMEX platform excels in performance. Ideal candidates for this position have experience in trading platforms, strong React expertise, and a passion for the bitcoin space. They should possess significant professional experience with React and a motivation to excel as an engineer within this domain.
Key Responsibilities
- Develop the BitMEX Web Frontend and React Native components
- Collaborate across teams and skill sets to deliver end-user products
- Design and implement new features, address bugs, and optimize performance
- Coordinate with API and Engine teams to integrate new features and innovative consumer-facing products
- Provide mentorship to other engineers on coding standards, design principles, and engineering practices
- Explore and assess new stack components and architectural concepts as needed
- Conduct regular code reviews
Requirements
- Extensive experience with JS and its performance characteristics
- Proficiency in NodeJS, React, and Flux architecture
- Experience with Jest, Flow, Webpack, Make, and Sass is a plus
- Ability to make complex, data-driven products accessible to users
- Track record of working on multiple product concepts simultaneously
- Knowledge of current UX trends and interest in exploring new UX concepts
- Background in trading derivatives products, preferably bitcoin derivatives
- Understanding of Bitcoin's value proposition and willingness to be compensated in bitcoin
Join us in fostering a dynamic cryptocurrency ecosystem through strategic investments in emerging cryptocurrency technologies and shaping the future of digital financial services.
Senior Blockchain Engineer
Protocol Core: Development and optimization of L2-settlement logic on Solidity/Yul.
Bridge Security: Designing secure cross-chain gateways with protection against double spending and reorgs.
Node Infrastructure: Optimizing the interaction of node validators with the EVM stack.
Gas Engineering: Extreme cost reduction for publishing data in L1 (Deneb/Cancun-ready).
Requirements:
Deep knowledge of Solidity (0.8.20+) and Assembly (Yul).
Experience working with Foundry (Fuzzing/Invariants) and understanding the architecture of OP Stack or Arbitrum Orbit.
Skills of working with indexers (The Graph/Envio) and the RPC layer.
Social media manager
Senior Blockchain Engineer
DApp & Smart Contract Developer (Vesting Platform)
This role is ideal for someone who thrives in fast-moving environments, values clean and secure code, and understands the nuances of blockchain-based application architecture.
Responsibilities
Diagnose and resolve issues in vesting smart contracts and their front-end integrations.
Implement new features and system enhancements to improve UX and overall platform performance.
Maintain smooth interaction between the web interface and deployed smart contracts.
Conduct testing, audits, and deployments across testnet and mainnet environments.
Optimize contract logic for performance, security, and gas efficiency.
Collaborate with our engineering team to identify pain points and deliver stable, secure solutions.
Requirements
Proven experience building full-stack decentralized applications.
Strong proficiency in Solidity, JavaScript/TypeScript, and modern frameworks (Angular, React, or Vue).
Hands-on experience with Hardhat or Foundry for smart contract development and testing.
Familiarity with Ethers.js or Web3.js for blockchain interaction layers.
Solid understanding of Ethereum, Polygon, or other EVM-compatible chains.
Experience integrating wallets such as MetaMask and managing on-chain/off-chain data flows.
Strong debugging skills, attention to detail, and a security-first mindset.
Nice to Have
Experience with smart contract security audits and gas optimization techniques.
Knowledge of Node.js-based backend services or API integration layers.
Previous experience with vesting, staking, or token distribution mechanisms.
Project Scope
This role supports a short-to-mid-term initiative focused on stabilizing and enhancing an existing crypto vesting platform. High-performing developers may have opportunities for ongoing collaboration across additional blockchain and product engineering projects.
Hiring Process
Technical Assessment - Selected candidates will complete a short, clearly scoped technical exercises designed solely to evaluate coding approach and smart contract knowledge.
CTO interview - A final discussion to evaluate technical reasoning, architectural thinking, and team fit. Successful candidates may receive an offer through Contra following this conversation.
Senior Blockchain Developer - Ethereum/PulseChain - GAM3S.GG
We're looking for a Senior Blockchain Developer with strong Ethereum/PulseChain smart contract experience to work on our DeFi/GameFi platform. You'll be building and maintaining betting contracts, yield farming mechanisms, token swap systems, and Web3 frontend integrations for our decentralized application on PulseChain.
Key Responsibilities
Smart Contract Development
System Architecture & Integration
Frontend Web3 Integration
Security & Compliance
Performance & Monitoring
Required Technical Skills
Blockchain Expertise
Frontend Web3 Development
Development Tools
Integration & Tools