12 Smart Contracts jobs in Singapore

About the Role

We are seeking a skilled Blockchain Developer to join our team and contribute to the design, development, and deployment of blockchain-based solutions. You will be responsible for building smart contracts, decentralized applications (dApps), and blockchain infrastructure that align with business requirements.

Key Responsibilities

• Design, develop, and implement smart contracts and decentralized applications (dApps).

• Build and maintain blockchain protocols, consensus mechanisms, and APIs.

• Write secure, efficient, and clean code for blockchain integrations.

• Collaborate with product, engineering, and research teams to design scalable blockchain solutions.

• Conduct security audits and testing of smart contracts and blockchain systems.

• Stay updated on industry trends, emerging technologies, and best practices in blockchain development.

• Optimize existing blockchain applications for performance, scalability, and reliability.

Requirements

• Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent experience).

• Strong programming skills in languages such as Solidity, Go, Rust, JavaScript/TypeScript, or Python.

• Hands-on experience with blockchain platforms.

• Understanding of cryptographic principles, data structures, and distributed systems.

• Experience with smart contract development, testing, and deployment tools

• Familiarity with web3 frameworks and libraries

• Knowledge of security best practices in blockchain development.

We are hiring for one of our ecosystem projects in the digital asset space, we are looking for a Blockchain Developer to design, develop, and implement blockchain-based solutions for a high-performance trading system. The ideal candidate will have expertise in blockchain technologies, smart contract development, and trading system architecture, ensuring secure, scalable, and efficient solutions for decentralized trading applications.

Job Description

• Design and develop blockchain-based trading platforms, including decentralized exchanges (DEX), automated market makers (AMM), or order-book systems.
• Write, test, and deploy secure smart contracts using platforms such as Ethereum, Binance Smart Chain, Solana, or other blockchain networks.
• Integrate blockchain solutions with front-end and back-end systems to enable seamless trading functionality.
• Implement security best practices to protect against vulnerabilities, including reentrancy attacks, front-running, and unauthorized access.
• Optimize smart contracts for gas efficiency and system performance to handle high-frequency trading scenarios.
• Collaborate with cross-functional teams, including traders, product managers, and DevOps engineers, to define system requirements and ensure alignment with business goals.
• Ensure compliance with relevant financial regulations and standards for trading systems.
• Monitor and maintain blockchain nodes, ensuring uptime and reliability of the trading infrastructure.
• Stay updated on emerging blockchain technologies, protocols, and industry trends to enhance system capabilities.

Qualifications

• Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent experience).
• 3+ years of experience in blockchain development, with a focus on building decentralized applications (dApps) or trading systems.
• Proficiency in programming languages such as Solidity, Rust, or Go for smart contract development.
• Strong understanding of blockchain protocols (e.g., Ethereum, Solana, Polygon) and consensus mechanisms (e.g., PoW, PoS).
• Experience with trading system concepts, including order matching, liquidity pools, or market-making algorithms.
• Familiarity with DeFi protocols, token standards (e.g., ERC-20, ERC-721), and interoperability frameworks.
• Knowledge of cryptographic principles, including public/private key infrastructure and hashing algorithms.
• Experience with tools like Truffle, Hardhat, or Foundry for smart contract development and testing.
• Understanding of front-end and back-end integration (e.g., , , REST APIs).
• Strong problem-solving skills and attention to detail in writing secure and efficient code.
• Excellent communication and collaboration skills to work in a fast-paced, team-oriented environment.

Nice To Have

• Experience with layer-2 scaling solutions (e.g., Optimism, Arbitrum) or cross-chain bridges.
• Knowledge of financial markets, trading strategies, or algorithmic trading.
• Familiarity with cloud platforms (e.g., AWS, Azure) and containerization (e.g., Docker, Kubernetes).
• Contributions to open-source blockchain projects or active participation in blockchain communities.
• Understanding of regulatory frameworks for cryptocurrencies and trading platforms (e.g., KYC/AML compliance).

About Magent

Magent, a Reap Company, is redefining how crypto natives and hybrid users spend and earn by bridging decentralized finance (DeFi) with real world transactions. Unlike traditional crypto cards, Magent doesn't just enable spending, we allow for idle crypto assets to work for users through automated DeFi earnings. By partnering with wallets and DeFi protocols, Magent creates a low risk, high utility financial experience, bringing true DeFi powered financial freedom to a global audience. This is a chance to join early and play a key role in shaping the future of Magent.

The Role

As a key member of the Magent team, you'll be designing and maintaining smart contracts on Solana and working closely with backend systems ) as core parts to the role. You'll optimize for reliability, security, and scalability. Cross chain experience (e.g., token bridges, interoperability protocols) is a plus, as we aim to expand blockchain support beyond Solana.

This role is ideal for someone who is also commercially minded and understands how technical decisions can affect the user experience and business model.

What You'll Do

• Develop and maintain Solana programs in Rust that support existing product features and DeFi integrations in addition to future product builds.
• Build and optimize backend services ) to support on-chain integrations.
• Collaborate with the product team to translate business logic into secure, on chain functionality and new experiences.
• Participate in architecture decisions, especially for cross-chain expansion and scalability.
• Contribute to code reviews, audits, and performance optimization.

What We're Looking For

• Lateral thinker/problem solver who thrives in positions of autonomy and who is looking to take oversized ownership while getting their hands dirty in a start up environment.
• Strong proficiency in Rust and Solana program architecture.
• Strong Typescript and backend development experience.
• Understanding of blockchain engineering.
• Experience using and technical understanding of the Solana DeFi ecosystem.
• Ability to work in a lean, minimal-tooling environment.
• Bonus: cross-chain development experience, credit/finance systems or credit card industry knowledge.

Why Join Us

You'll be working directly with the co-founders on a high impact product from the ground up. Your work will directly power a crypto credit card product that merges DeFi and traditional payments. We're small, fast, and building something that the market hasn't seen; you'll be a core part of making it happen.

Job Responsibilities:
1.Design, develop, and deploy blockchain-related products, including smart contracts and decentralized applications (DApps).
2.Research and optimize the performance of mainstream public chains (e.g., Ethereum, EOS), consortium chains, or private chains.
3.Collaborate with teams to integrate blockchain technology with existing systems, ensuring data security and consistency.
4.Stay updated with blockchain technology trends and explore applications in token economies and decentralized finance (DeFi).
Job Requirements:
1.Bachelor's degree or higher in Mathematics, Computer Science, or a related field.
2.At least 1 years of blockchain development experience, with proficiency in Solidity, Rust, or Go.
3.Strong expertise in smart contract development and security auditing, with familiarity in tools like Truffle and Hardhat.
4.Knowledge of cryptographic principles (e.g., hashing, asymmetric encryption); experience with distributed systems is a plus.
5.Passion for the Web3.0 ecosystem; contributions to open-source projects or DApp cases are highly advantageous.

Blockchain Developer

Responsibilities

1.Design, develop, and deploy blockchain-related products, including smart contracts and decentralized applications (DApps).

2.Research and optimize the performance of mainstream public chains (e.g., Ethereum, EOS), consortium chains, or private chains.

3.Collaborate with teams to integrate blockchain technology with existing systems, ensuring data security and consistency.

4.Stay updated with blockchain technology trends and explore applications in token economies and decentralized finance (DeFi).

Qualifications

1.Bachelor's degree or higher in Mathematics, Computer Science, or a related field.

2.At least 2 years of blockchain development experience, with proficiency in Solidity, Rust, or Go.

3.Strong expertise in smart contract development and security auditing, with familiarity in tools like Truffle and Hardhat.

4.Knowledge of cryptographic principles (e.g., hashing, asymmetric encryption); experience with distributed systems is a plus.

5.Passion for the Web3.0 ecosystem; contributions to open-source projects or DApp cases are highly advantageous.

Blockchain Developer

Responsibilities

1.Design, develop, and deploy blockchain-related products, including smart contracts and decentralized applications (DApps).

2.Research and optimize the performance of mainstream public chains (e.g., Ethereum, EOS), consortium chains, or private chains.

3.Collaborate with teams to integrate blockchain technology with existing systems, ensuring data security and consistency.

4.Stay updated with blockchain technology trends and explore applications in token economies and decentralized finance (DeFi).

Qualifications

1.Bachelor's degree or higher in Mathematics, Computer Science, or a related field.

2.At least 2 years of blockchain development experience, with proficiency in Solidity, Rust, or Go.

3.Strong expertise in smart contract development and security auditing, with familiarity in tools like Truffle and Hardhat.

4.Knowledge of cryptographic principles (e.g., hashing, asymmetric encryption); experience with distributed systems is a plus.

5.Passion for the Web3.0 ecosystem; contributions to open-source projects or DApp cases are highly advantageous.

What we are building
Overmind’s mission is to enable more developers to enter web3, build ground-breaking products, and access rare opportunities. We believe that one of the biggest drags on crypto’s growth is the friction and uncertainty that developers face in the transition from web2 to web3.
Overmind makes it easy for everyone, regardless of what coding experience they have, to continue to learn, earn, and grow through a series of quests, and find their next role in web3. Overmind quests are designed in partnership with web3 companies hiring in collaboration with Overmind, including start-ups from within the Aptos ecosystem. Quests range in complexity, length, and subject matter, making learning web3 accessible for people at all stages of their development journey.
The Overmind is formed by the collective intelligence of those bold enough to join it. Enter at overmind.xyz.
Skills & Experience
Essential Requirements
1+ years of development experience
English working proficiency (written & oral)
Nice-to-haves
Experience with Solidity, Rust, or Move
Bachelors, advanced degree, boot camps, or other certifications in Computer Science or related subject
Please be advised that this job opening is for our partner companies. This is not a job listing for an internal role at Overmind. We are proud to connect some of the brightest minds, of all levels with our partners.
What happens if I apply?
An Overmind talent team member will review your application with the aim to reach out to you within 5 working days if we believe your profile will be of interest to our partners, to learn more about your current interests, skills, and career development goals so we can match you with our partners hiring on Overmind
Who we have helped?

• We have enabled thousands of developers to learn how to build on Move in partnership with Aptos and get connected to Aptos’ ecosystem hiring teams
• We are currently in the process of partnering with other industry-leading projects to help connect the new frontier of developers to exciting career opportunities
• We fast-track Overmind community members to connect with our partners who are currently hiring through warm introductions and up-skill them via Overmind quests
• Overmind developers have been supported in their efforts to win globally acclaimed hackathon competitions and prizes as well as launch their own applications

We welcome developers of all levels of coding experience who:
- Have a growing interest in the crypto/web3 space looking to transition their career into web3 or find their next web3 role
- Are not sure how to find a new role in web3 and are looking for a route in
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We are hiring for one of our ecosystem projects - a pioneering tech company developing a groundbreaking cross-platform robot operating system infused with AI, whose mission is to create robots that learn rapidly, are easy to train, and excel at interacting dynamically with both their environment and humans. Building vision-language-action models (VLAMs) and integrating them with other AI technologies to enable robots to understand and interact with the physical world.

We are seeking a skilled Full Stack Blockchain Engineer in APAC (Ideally based in Hong Kong/ Singapore/ China). In this role, you will design and implement smart contracts, core blockchain components (e.g., staking, slashing, and rewards), and robust full-stack solutions to support a decentralized internet application. You will collaborate with a small, high-impact team to deliver scalable, secure, and production-ready systems.

Responsibilities

• Design, develop, and deploy secure, efficient, and testable smart contracts in Solidity for EVM-compatible blockchains, focusing on staking, slashing, and reward distribution.
• Build and maintain scalable backend services using , Java, or Golang to manage on-chain and off-chain interactions, ensuring robust blockchain integration.
• Develop responsive and intuitive front-end interfaces using to provide seamless user experiences for interacting with the Fabric platform.
• Implement core blockchain components for Fabric, collaborating closely with robotics and engineering teams to align with system requirements.
• Optimize full-stack performance, ensuring low-latency interactions between the front-end, backend, and blockchain layers.
• Write clean, maintainable, and well-documented code following industry best practices for both front-end and back-end development.
• Participate in code reviews, testing, and debugging to ensure high-quality, secure, and reliable deliverables.

Requirements

• Strong expertise in Solidity for developing and deploying EVM-compatible smart contracts.
• Proficiency in backend development using , Java, Golang, Python (or other backend language) for building production-grade services.
• Hands-on experience with for creating modern, responsive front-end applications.
• Familiarity with decentralized networks and blockchain mechanisms, including staking, rewards, and slashing.
• Experience integrating front-end and back-end systems with blockchain technologies, ensuring seamless data flow and user interaction.
• Strong understanding of RESTful APIs, , or for blockchain interactions.
• Ability to work independently on complex, open-ended problems and collaborate effectively with cross-functional teams.
• Deep commitment to security best practices, including secure coding, contract auditing, and vulnerability mitigation.
• Familiarity with modern DevOps practices, such as CI/CD pipelines, containerization (e.g., Docker), and cloud platforms (e.g., AWS, GCP), is a plus.
• Excellent problem-solving skills and attention to detail in delivering production-ready systems.

We are hiring for one of our ecosystem projects - a cryptocurrency exchange.
We are looking for a Rust Blockchain Developer to be responsible for designing, implementing, and maintaining blockchain-based solutions, specifically focusing on Solana smart contracts. You will work closely with our development team to enhance our blockchain infrastructure and contribute to various projects.
In this role, you will:
Design, develop, and deploy smart contracts on the Solana blockchain.
Write efficient, reusable, and reliable code using Rust and Solidity.
Collaborate with cross-functional teams to define, design, and ship new features.
Conduct code reviews and ensure adherence to best practices for blockchain development.
Troubleshoot and optimize existing blockchain solutions.
Stay updated with the latest trends and advancements in blockchain technology.
You might thrive in this role if you have:
Proven experience in blockchain development, specifically with Solana.
Proficiency in Rust and Solidity programming languages.
Strong understanding of blockchain architecture and decentralized applications (dApps).
Experience in building, testing, and deploying smart contracts.
Familiarity with version control systems, such as Git.
Excellent problem-solving skills and attention to detail.
Strong communication skills and ability to work collaboratively in a remote team environment.
Knowledge of cryptography and network security principles.
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