Senior Blockchain Developer

Support; Singapore; On-site; SGD 80,000 - 120,000; Full time

Job summary

A proprietary trading firm is seeking a Blockchain Engineer to enhance and scale their trading infrastructure across multiple blockchains. Responsibilities include developing integrations with leading DeFi protocols and optimizing execution pipelines. Ideal candidates will have strong experience in smart contract development and backend programming, particularly in trading environments. Join a pioneering team focused on innovative digital asset trading in Singapore.

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.

Responsibilities

• Design and develop robust integrations with leading DeFi protocols.
• Write and operate gas-efficient smart contracts.
• Optimize the execution pipelines for each chain.
• Monitor and tune systems to benchmark and improve performance.

Skills

DeFi protocol integration

Smart contract development

Backend/system programming (Rust, Typescript)

Latency-sensitive systems

Tools

Prometheus

Grafana

Job description

About the Role

We are seeking a Blockchain 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.