Blockchain Engineer (Web3)

About this role.

Mantle is hiring a Blockchain Engineer to research and build blockchain protocols, modules, algorithms, and related infrastructure for institutional real-world-asset adoption. The role covers technical design documentation, testing strategies, proof-of-concept development, and knowledge sharing within the engineering team and broader community. Candidates need 1–5 years of relevant experience plus strong foundations in algorithms, distributed systems, cryptography, and blockchain platforms. Core technical requirements include Go, Rust, Solidity, and smart-contract development, while prior contributions to Ethereum, Solana, Optimism, Cosmos, OP Stack, or ZK-rollup ecosystems are advantageous. The remote position is limited to APAC and requires bilingual English and Chinese communication skills.

Role DNA

A quick view of the complexity, pace, ownership and collaboration implied by the job description.

Job Complexity

4/5### Pace & Pressure

4/5### Autonomy Level

4/5### Communication Load

4/5AI insightThis is a technically demanding engineering role because it combines protocol research, cryptography, distributed systems, smart contracts, and production-oriented design and testing. Candidates must independently validate concepts quickly while communicating technical work in both English and Chinese.

Salary analysis

Estimated compensation compared with the broader US market for similar roles.

$145,000

$115k–$180k

AI insightNo actual salary is disclosed. This is an estimated US-market annual base-salary range in USD for a 1–5 year Blockchain Engineer with Go, Rust, Solidity, distributed-systems, and cryptography expertise; actual APAC compensation may differ materially by country and employment arrangement.

Core skills

Skills and capabilities most closely associated with this opportunity.

Sample interview questions

Describe a blockchain protocol or smart-contract system you designed or contributed to. What were the main architectural decisions?

I would explain the problem, chain environment, trust assumptions, and protocol architecture before detailing choices around state management, consensus dependencies, contract interfaces, upgradeability, and security controls. I would also quantify outcomes such as lower gas usage, improved throughput, or reduced failure rates.

How would you validate a proof of concept for a new blockchain module before proposing production adoption?

I would first define measurable hypotheses and threat assumptions, then build a minimal prototype with deterministic tests, integration tests, and adversarial cases. I would benchmark performance, assess security and operational risks, document trade-offs, and present a recommendation based on evidence rather than prototype success alone.

What security risks do you prioritize when reviewing Solidity smart contracts?

I start with authorization and access-control boundaries, reentrancy, unsafe external calls, arithmetic and accounting correctness, oracle assumptions, signature handling, upgradeability risks, and denial-of-service vectors. I combine manual review with unit tests, fuzzing, invariant testing, static analysis, and independent audit preparation.

How have you used Go or Rust in distributed or blockchain-related systems?

A strong answer should describe concrete services or protocol components, such as node modules, indexers, transaction-processing services, networking layers, or cryptographic integrations. It should also cover concurrency design, error handling, testing, profiling, and the trade-offs that led to selecting Go or Rust.

How would you communicate a complex protocol decision to both engineers and community stakeholders in English and Chinese?

I would create a concise bilingual design summary covering the problem, proposed solution, alternatives, security assumptions, expected impact, and open questions. For engineers, I would include implementation details and test plans; for community stakeholders, I would focus on benefits, risks, timelines, and transparent documentation.

Who we are

Mantle is the entry point for institutions and traditional finance to access real-world assets on-chain. Backed by the world’s largest community-owned treasury of over $4B, Mantle combines institutional-grade infrastructure with the scale and credibility to bring RWAs into Web3 with confidence.

Mantle positions itself as the gateway for institutions and TradFi to move into RWAs on-chain. With $4B+ in community-owned assets, Mantle combines credibility, liquidity and scale with institutional infrastructure to support large-scale adoption. The ecosystem is anchored by $MNT in the Bybit network, and built out through subsidiaries mETH, fBTC, MI4 and MantleX. This is complemented by Mantle Network’s partnerships with leading issuers and protocols such as Agora AUSD, Ethena USDe, Ondo USDY and EigenLayer.

Your Role

• Researching and building blockchain protocols, modules, technologies and algorithms
• Preparation of detailed design documents and testing strategies according to requirements
• Promoting technical experience sharing within the team
• Support the community through the best communications and documentation

Your Craft

• Bachelor’s degree or above in Computer Science, Software Engineering, or a related field
• 1–5 years of work experience, with design and development experience in blockchain, distributed systems, or related areas
• Strong foundation in algorithms and data structures, with the ability to quickly conduct POC (Proof of Concept) development and validation
• Proficient in programming languages such as Go and Rust; highly skilled in smart contract development using Solidity
• Extensive experience in cryptography and blockchain, familiar with mainstream blockchain platforms and their core algorithms
• Experience contributing to or developing on open-source blockchain projects (e.g., Ethereum, Solana, Optimism) is preferred
• Fluent in Bilingual – English and Chinese

职位要求：

• 计算机科学、软件工程等相关专业，本科及以上学历
• 1~5年工作年限，区块链、分布式等领域的设计开发经验
• 精通算法、数据结构，能快速进行POC开发论证
• 熟练掌握Go、Rust等编程语言，精通智能合约Solidity
• 在密码学、区块链等领域有丰富经验，熟悉blockchain主流平台及核心算法
• 对区块链的开源项目（Ethereum、Solana、Optimism…）有开发经验的优先
• 能快速阅读英文论文与资料，有较强的研究能力和自我驱动力

Extra Credit

• Existing track record of R&D and execution of open source projects on known blockchain platforms such as Ethereum/Cosmos/OP or ZK Rollup is a great plus.

Annual salary information is not provided for this position. Explore salary ranges for similar roles in our[Salary Directory ›]

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