20 Blockchain Engineer jobs in Singapore

Location: Remote

Responsibilities:

• Design, develop and maintain blockchain-based applications and smart contracts using popular programming languages such as Solidity, Rust, Golang, etc.
• Collaborate with the team to identify and prioritize blockchain application features and functionalities
• Design and implement secure, scalable, and reliable back-end systems for blockchain applications
• Work on front-end development when needed
• Work with the team to continuously improve product user experience and performance
• Stay up-to-date with the latest blockchain technologies and best practices
• Connect with the developer community and collaborate with engineering teams within the ecosystem

Requirements:

• Bachelor's degree in Computer Science, Software Engineering, or a related field
• At least 5 years of professional experience in software engineering, with substantial exposure to blockchain/Web3 technologies
• Extensive experience in blockchain or backend programming languages such as Solidity, Golang, or Rust
• Knowledge in at least one modern web development framework (e.g., React, Angular, )
• Experience with cloud-based architecture and deployment (e.g., AWS, Azure, Google Cloud Platform)
• Strong understanding of software security principles and best practices
• Familiarity with agile software development methodologies
• Excellent problem-solving and communication skills
• Great product and business sense

About SwiftBridge

. SwiftBridge is building a next-generation middleware infrastructure connecting the global SWIFT banking network (MT103, GPI) with blockchain technology

. Our mission is to enable banks and financial institutions to tokenize, trace, and automate cross-border transactions securely and at scale

Key Responsibilities

. Design, develop, and optimize smart contracts (ERC20, ERC721, ERC1155) for financial transactions

. Implement tokenization frameworks for SWIFT MT103 message integration into blockchain transactions

. Collaborate with backend/API engineers to connect traditional banking systems with blockchain infrastructure

. Ensure robustness, scalability, and high security in all smart contract deployments

. Conduct code reviews, audits, and testing for compliance with industry standards

. Stay ahead of DeFi, zk-SNARKs, and Layer 2 rollup technologies, and bring innovative solutions to production

Qualifications

. 4+ years of experience in blockchain development (Ethereum, EVM-compatible chains)

. Strong knowledge of Solidity, Hardhat, Truffle, or Foundry

. Experience with token standards (ERC20, ERC721, ERC1155) and DeFi protocols

. Understanding of cryptography, smart contract security, and common vulnerabilities

. Familiarity with SWIFT/financial systems is a plus but not required

. Ability to work in a fast-paced startup environment with autonomy and accountability

What We Offer

. Opportunity to build a disruptive infrastructure bridging banking and blockchain

. Remote-first culture with global team collaboration

. Competitive package (salary + equity options)

. Exposure to institutional investors and top-tier banking/fintech partners

About the Role
We are seeking a
DeFi Engineer
to drive protocol integrations and scale our trading infrastructure across multiple blockchains. This role covers the full gamut of
DeFi trading
from the development of data pipelines and smart contracts to the low-latency off-chain execution infrastructure. You will work closely with trading and research teams to ensure our systems are fast, reliable, and scalable across Ethereum and L2s, as well as other non-EVM ecosystems.
Key Responsibilities
Design and develop robust integrations with leading DeFi protocols
Write and operate gas-efficient smart contracts to better interact with other protocols
Optimize the execution pipelines for each chain (e.g. order routing and transaction broadcasting)
Monitor and tune systems to benchmark and improve performance
Ensure that systems are resilient and follow best practices
Qualifications
Experience in
DeFi protocol integration
and smart contract development.
Proficiency in backend/system programming languages (Rust, Typescript preferred).
Solid understanding of blockchain environments such as EVMs, SVMs and MVMs.
Experience in the development of
latency-sensitive systems , ideally in the trading domain.
Experience with monitoring and performance tuning (Prometheus, Grafana, custom latency metrics).
Nice to Have
Experience with
HFT market-making .
Contributed to DeFi or blockchain projects.
Familiarity with MEV ecosystems, builder marketplaces, and advanced blockchain execution techniques.
Experience scaling across heterogeneous blockchain environments.
About Tokka Labs
Tokka Labs is a proprietary trading firm specializing in digital assets within the blockchain space. Founded in 2022 and based in Singapore, we are pioneers in digital asset trading, focusing on close collaboration, rigorous research, and cutting-edge technology. As experienced market makers for top protocols on popular blockchains, we enhance market efficiency by identifying and arbitraging mis-pricings, while providing liquidity in the blockchain ecosystem. We are committed to innovation and excellence in the fast-paced world of decentralized finance (DeFi), on-chain, and cross-chain trading.
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Job Description
Responsible for the development and maintenance of the BTC mining pool;
Implement and optimize the Stratum protocol;
Participate in research, discussion, and development of various underlying technologies and service architectures;
Build high-concurrency, high-reliability API services.
Requirements
Bachelor’s degree or above in Computer Science or related field, with at least 5 years of experience in Golang development;
Proficient in blockchain technology, familiar with the Stratum protocol, and experienced in BTC mining pool development;
Solid computer science fundamentals, strong grasp of data structures and algorithms, and a strong sense of code quality;
Passionate about the blockchain industry; candidates with experience in public chain development or contributions to open-source communities are preferred;
Excellent communication and logical thinking skills, with strong teamwork spirit and collaboration performance.
区块链开发工程师(Go语言) 职位描述
负责BTC矿池的开发和维护;
负责stratum协议的实现和优化;
参与各种底层技术、服务架构的调研、讨论和开发;
构建高并发、高可靠的 API 服务。
岗位要求
全日制本科学历及以上,计算机相关专业,5年以上Golang工作经验;
精通区块链技术,熟悉stratum协议,有BTC矿池开发经验;
计算机基础扎实,有良好的数据结构与算法功底,有强烈的代码质量意识;
热爱区块链行业,有公链研发经验或者对开源社区有贡献者优先。
具有较好的沟通和逻辑表达能力,有很强的团队合作意识和合作表现。
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Job Description:
Responsible for the development and maintenance of the BTC mining pool;
Implement and optimize the Stratum protocol;
Participate in research, discussion, and development of various underlying technologies and service architectures;
Build high-concurrency, high-reliability API services.

Requirements:
Bachelor’s degree or above in Computer Science or related field, with at least 5 years of experience in Golang development;
Proficient in blockchain technology, familiar with the Stratum protocol, and experienced in BTC mining pool development;
Solid computer science fundamentals, strong grasp of data structures and algorithms, and a strong sense of code quality;
Passionate about the blockchain industry; candidates with experience in public chain development or contributions to open-source communities are preferred;
Excellent communication and logical thinking skills, with strong teamwork spirit and collaboration performance.

区块链开发工程师（Go语言） 职位描述 1、负责BTC矿池的开发和维护； 2、负责stratum协议的实现和优化； 3、参与各种底层技术、服务架构的调研、讨论和开发； 4、构建高并发、高可靠的 API 服务。

岗位要求: 1、全日制本科学历及以上，计算机相关专业，5年以上Golang工作经验； 2、精通区块链技术，熟悉stratum协议，有BTC矿池开发经验； 3、计算机基础扎实，有良好的数据结构与算法功底，有强烈的代码质量意识； 4、热爱区块链行业，有公链研发经验或者对开源社区有贡献者优先。 5、具有较好的沟通和逻辑表达能力，有很强的团队合作意识和合作表现。

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We are hiring for a Blockchain Infrastructure Engineer to design, deploy, and optimize mission-critical blockchain infrastructure powering our trading operations. You will work at the intersection of distributed systems, low-latency engineering, and blockchain protocols — building robust, scalable systems to support node operations, data indexing, and secure computation.

• Design and deliver stable, efficient, and scalable blockchain node infrastructure.
• Build and maintain indexing systems that feed on-chain data to trading systems with high reliability and low latency.
• Proactively monitor and optimize infrastructure for performance, uptime, and resource efficiency.
• Track and adopt new developments across blockchain ecosystems — including protocol upgrades, new client implementations, indexing frameworks, and ecosystem tools.
• Collaborate with cross-functional teams to deploy and operate Trusted Execution Environment (TEE) infrastructure in support of secure computation and private trading strategies.
• Implement automated deployment and management pipelines using CI/CD and IaC best practices.
• Troubleshoot production issues across services and levels of the stack; contribute to post-mortems and continuous improvement efforts.

• 6+ years of experience in infrastructure or backend engineering, ideally with blockchain or crypto systems.
• Deep understanding of blockchain node architecture, syncing, and consensus mechanisms.
• Hands-on experience managing blockchain clients (e.g., Geth, Reth, Jito-Solana, etc).
• Proficiency in working with indexing frameworks (e.g., Tycho indexer or similar).
• Experience with containerization, orchestration (Docker, Kubernetes), and cloud infrastructure (AWS, GCP, or similar).
• Familiarity with Trusted Execution Environments (TEEs) such as Intel SGX, AWS Nitro Enclaves, or similar.
• Strong knowledge of Linux systems, networking, and observability tools (Grafana, Prometheus, etc).
• Scripting or programming proficiency in Python, Bash, Rust or similar.
• Knowledge of blockchain data structures (e.g., Merkle Trees, state diffs).

• Exposure to trading systems or quantitative finance environments.
• Contributions to open-source blockchain infrastructure projects.
• Experience working in high-availability or low-latency environments.

Mid-Senior level

Full-time

Information Technology

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We are hiring for one of our ecosystem projects - A digital assets trading platform. They are hiring a Blockchain Infra Engineer to join their team in Singapore (with relocation support).

Responsibilities

• Design and maintain resilient, scalable infrastructure systems to support high-performance applications.
• Develop and manage data processing pipelines to ensure efficient, low-latency delivery of critical data to business systems.
• Monitor and optimize infrastructure performance, reliability, and resource utilization to meet operational goals.
• Stay updated on industry trends and emerging technologies, integrating relevant advancements into existing systems.
• Collaborate with cross-functional teams to deploy and operate secure computing environments for sensitive operations.

Requirements

• 6+ years of experience in infra/backend engineering.
• Strong understanding of system architecture, data synchronization, and operational workflows.
• Hands-on experience managing software clients or services in distributed environments.
• Proficiency with data processing or indexing frameworks for real-time data handling.
• Expertise in containerization (e.g., Docker, Kubernetes), cloud platforms (e.g., AWS, GCP), Linux systems, networking, monitoring tools, and scripting languages (e.g., Python, Bash).

Location:

Remote - Operating on EST time zone

Reporting To - Chief Technology Officer

About The Company:

Our client is a leading onchain investment consultancy serving over 1,500 individual and HNWI clients. With a team of 40+ crypto-native analysts, consultants, and support staff, they process more than USD $15M in annual revenue and have established a strong presence in the blockchain investment space over the past three years. The company is dedicated to transforming onchain intelligence into actionable investment insights through data-driven systems and deep market expertise.

Position Overview:

We are seeking a Blockchain Data Engineer to design, build, and maintain robust data pipelines that convert raw onchain data into structured, reliable insights. You'll play a key role in bridging blockchain complexity with clean, usable data that powers analytics, dashboards, and execution systems across the organization. This role requires a mix of backend engineering, data architecture, and blockchain expertise to ensure that the infrastructure operates with precision, scale, and reliability.

Key Responsibilities

• Design, build, and maintain ETL/ELT pipelines ingesting both onchain and off-chain data from multiple blockchain networks.
• Normalize, index, and store blockchain data for real-time and historical access.
• Develop and optimize database schemas for scalability and performance.
• Ensure high data quality, accuracy, and uptime across data systems.
• Integrate diverse data sources including RPC nodes, subgraphs, indexers, and APIs.
• Collaborate with frontend and product teams to deliver well-structured APIs and data endpoints.
• Implement monitoring, alerting, and performance optimization for pipelines and storage layers.
  Document data architecture and continuously enhance system reliability and speed.

Job Requirements

• 3+ years of experience in backend or data engineering, with exposure to blockchain data strongly preferred.
• Proficiency in Python or Nodejs, with strong SQL and database design expertise.
• Experience with Postgres, ClickHouse, or BigQuery.
• Familiarity with The Graph, RPC APIs, or building custom indexers for blockchain data ingestion.
• Solid understanding of blockchain fundamentals transactions, logs, events, and smart contracts.
• Experience using data orchestration tools such as Airflow or Dagster in cloud environments.
• Strong debugging, optimization, and observability skills.
  Excellent communication and collaboration skills across engineering and product teams.

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About The Role
We are hiring for a
Blockchain Infrastructure Engineer
to design, deploy, and optimize mission-critical blockchain infrastructure powering our trading operations. You will work at the intersection of distributed systems, low-latency engineering, and blockchain protocols — building robust, scalable systems to support node operations, data indexing, and secure computation.
Responsibilities
Design and deliver stable, efficient, and scalable blockchain node infrastructure.
Build and maintain indexing systems that feed on-chain data to trading systems with high reliability and low latency.
Proactively monitor and optimize infrastructure for performance, uptime, and resource efficiency.
Track and adopt new developments across blockchain ecosystems — including protocol upgrades, new client implementations, indexing frameworks, and ecosystem tools.
Collaborate with cross-functional teams to deploy and operate Trusted Execution Environment (TEE) infrastructure in support of secure computation and private trading strategies.
Implement automated deployment and management pipelines using CI/CD and IaC best practices.
Troubleshoot production issues across services and levels of the stack; contribute to post-mortems and continuous improvement efforts.
Requirements
6+ years of experience in infrastructure or backend engineering, ideally with blockchain or crypto systems.
Deep understanding of blockchain node architecture, syncing, and consensus mechanisms.
Hands-on experience managing blockchain clients (e.g., Geth, Reth, Jito-Solana, etc).
Proficiency in working with indexing frameworks (e.g., Tycho indexer or similar).
Experience with containerization, orchestration (Docker, Kubernetes), and cloud infrastructure (AWS, GCP, or similar).
Familiarity with Trusted Execution Environments (TEEs) such as Intel SGX, AWS Nitro Enclaves, or similar.
Strong knowledge of Linux systems, networking, and observability tools (Grafana, Prometheus, etc).
Scripting or programming proficiency in Python, Bash, Rust or similar.
Knowledge of blockchain data structures (e.g., Merkle Trees, state diffs).
Nice to Have
Exposure to trading systems or quantitative finance environments.
Contributions to open-source blockchain infrastructure projects.
Experience working in high-availability or low-latency environments.
Seniority level
Mid-Senior level
Employment type
Full-time
Job function
Information Technology
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