Job Description

Tokka Labs | Singapore

Tokka Labs is a proprietary trading firm with a focus on close collaboration, rigorous research, and cutting-edge technology. We are market makers, searchers, and solvers for top protocols on the most popular blockchains in the world. We design and implement our own trading systems and strategies to provide liquidity in the most diverse and challenging environments. At the core of it all lies our unwavering commitment to pushing boundaries of decentralized finance and we are always on the lookout for like-minded individuals to join us on this journey. If you think you have what it takes, apply now!

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.