Senior Software Engineer, CCIP

About Chainlink Chainlink

is the industry-standard oracle platform bringing the capital markets onchain and powering the majority of decentralized finance (DeFi).

The Chainlink stack provides the essential data, interoperability, compliance, and privacy standards needed to power advanced blockchain use cases for institutional tokenized assets, lending, payments, stablecoins, and more.

Since inventing decentralized oracle networks, Chainlink has enabled tens of trillions in transaction value and now secures the vast majority of DeFi.

Many of the world’s largest financial services institutions have also adopted Chainlink’s standards and infrastructure, including Swift, Euroclear, Mastercard, Fidelity International, UBS, S&P Dow Jones Indices, FTSE Russell, WisdomTree, ANZ, and top protocols such as Aave, Lido, GMX and many others.

Chainlink leverages a novel fee model where offchain and onchain revenue from enterprise adoption is converted to LINK tokens and stored in a strategic Chainlink Reserve .

Learn more at chain.link .

About The Role

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.

Your Impact

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

Requirements

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 Preferred

Requirements

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.

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Commitment to

Equal Opportunity

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