Senior Software Engineer CCIP

As a Senior Software Engineer on the CCIP Protocol team at Chainlink Labs, you will design and maintain the services that coordinate fast, fault-tolerant cross-chain transactions under adversarial conditions. You'll strengthen the reliability, security, and operational resilience of the core CCIP protocol while helping accelerate protocol performance and long-term ecosystem growth.

What you'll do

• Build and evolve the backend services that power secure, reliable cross-chain message execution across blockchain ecosystems.
• Improve protocol reliability for EVM chains by delivering resilient systems designed with security as a primary consideration.
• Reduce cross-chain transaction latency through optimizations to RPC usage and protocol performance.
• Develop internal tooling that enables faster diagnosis and resolution of production issues during incident response.
• Contribute to protocol security initiatives that strengthen the resilience of CCIP under adversarial conditions.
• Participate in technical design discussions that improve the architecture and long-term scalability of the protocol.

What you bring

• Demonstrated backend engineering experience using Go, Rust, or TypeScript.
• Experience delivering software within crypto projects or remote-first engineering organizations.
• Proven ability to design distributed systems with security and reliability as foundational engineering principles.
• Built or maintained backend systems that operate in production with a focus on resiliency and operational excellence.
• Experience collaborating in engineering design discussions and contributing to technical decision-making.

Nice to have

• Demonstrated knowledge of DeFi protocols and the broader decentralized application ecosystem.
• Experience deploying or operating services using cloud infrastructure and tooling such as containerized workloads and public cloud platforms.
• Hands-on experience using blockchain bridges or interoperability protocols.
• Understanding of bridge-specific security risks and common attack vectors.
• Familiarity with non-EVM ecosystems such as Solana, Aptos, Canton, or similar blockchain platforms.

What we offer

• Global, fully remote role with the expectation to overlap some working hours with Eastern Standard Time (EST).

About Chainlink Labs

Chainlink is the industry-standard oracle platform bringing capital markets onchain and powering the majority of decentralized finance. The Chainlink stack provides essential data, interoperability, compliance, and privacy standards for institutional tokenized assets, lending, payments, stablecoins, and more. Many of the world's largest financial services institutions and top protocols, including Aave, Lido, and GMX, have adopted Chainlink's infrastructure.