Senior Software Engineer, CCIP

This role exists to design and operate the core services that enable secure, fault-tolerant cross-chain transactions within the CCIP protocol. It is responsible for strengthening the reliability, performance, and security of interoperability infrastructure under adversarial conditions. The role directly impacts protocol trust, integration velocity, and long-term ecosystem growth.

• Deliver backend services that coordinate fast, fault-tolerant cross-chain transactions across multiple blockchain ecosystems

• Improve system reliability and resilience under adversarial conditions to strengthen protocol trust and uptime

• Reduce transaction processing latency through optimizations in RPC usage and system performance

• Enable seamless integration across EVM and non-EVM ecosystems, accelerating adoption of CCIP

• Increase throughput to scale CCIP to support thousands of concurrent cross-chain transfers without degradation or backlog

• Build internal systems that allow rapid debugging, replay, and resolution of failed transactions

• Demonstrated strong backend engineering experience using Go, Rust, or TypeScript in production systems

• Proven track record contributing to or building within crypto-native projects

• Designed systems with security and reliability as foundational principles, particularly in adversarial or distributed environments

• Built or operated backend systems that prioritize fault tolerance, consistency, and high availability

• Demonstrated knowledge of DeFi protocols and ecosystem dynamics

• Experience working with cloud infrastructure and containerized systems in production environments

• Hands-on experience interacting with blockchain bridges or interoperability protocols

• Understanding of security risks specific to cross-chain or bridge-based architectures

• Familiarity working with non-EVM ecosystems such as Solana, Aptos, or similar

• Experience debugging and operating distributed systems at scale

All roles with Chainlink Labs are global and remote-based. Unless otherwise stated, we ask that you try to overlap some working hours with Eastern Standard Time (EST).

We carefully review all applications and aim to provide a response to every candidate within two weeks after the job posting closes. The closing date is listed on the job advert, so we encourage you to take the time to thoughtfully prepare your application. We want to fully consider your experience and skills, and you will hear from us regarding the status of your application shortly after the closing date.

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