Senior Software Engineer CCIP

Chainlink Labs; Ireland; Remote; EUR 110,000 - 170,000; Full time

Job summary

Chainlink Labs, a remote-first organization, seeks a Senior Software Engineer to design and maintain services that coordinate fast, fault-tolerant cross-chain transactions. You will reinforce reliability, security, and operational resilience of the CCIP protocol while enabling faster ecosystem growth.

Bring backend experience in Go, Rust, or TypeScript, with a track record in crypto projects or remote teams.

Qualifications

• Demonstrated backend engineering experience using Go, Rust, or TypeScript.
• Experience delivering software in crypto projects or remote-first teams.
• Proven ability to design distributed systems with security and reliability as core principles.
• Backend systems built/maintained in production with emphasis on resiliency and operations.

Responsibilities

• Build and evolve the backend services powering cross-chain message execution.
• Improve protocol reliability for EVM chains with secure, scalable designs.
• Reduce cross-chain latency via RPC and protocol performance optimizations.
• Develop internal tooling to diagnose and resolve production incidents quickly.
• Contribute to protocol security initiatives to strengthen CCIP resilience.
• Participate in design discussions to improve architecture and long-term scalability.

Skills

Go

Rust

TypeScript

Job description

About Chainlink Labs

Chainlink Labs is one of the primary contributing developers of Chainlink, the standard for onchain finance enabling high-quality data, secure cross-chain interoperability, and compliant connectivity across global markets. Chainlink powers leading tokenized assets, financial institutions, market infrastructures, and decentralized applications by providing secure access to real-world data, cross-chain messaging, and blockchain connectivity across any network. The Chainlink standard has enabled tens of trillions of dollars in transaction value and is helping unify global markets onchain. 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, Aave, Polymarket, Lido, and many others.

Chainlink Labs is a world-class team of developers, researchers, and capital markets experts, and has ranked among Fortune's Best Workplaces in Technology, Fortune's Best Medium Workplace, and the Top 100 Global Most Loved Workplaces. Learn more at chain.link or chainlinklabs.com.

About The Role

The CCIP Protocol team is hiring a Senior Software Engineer to design and maintain the services that coordinate fast, fault-tolerant cross-chain transactions under adversarial conditions. This role strengthens the reliability, security, and operational resilience of the core CCIP protocol while helping accelerate protocol performance and long-term ecosystem growth.

Your Impact

• 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.

Requirements

• 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.

Preferred Requirements

• 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.

Chainlink Labs is a remote-first organization and employment eligibility is contingent upon residing in an approved hiring jurisdiction. Team members may work outside their primary country of legal residence for a maximum of 90 days per calendar year. Please discuss your current location, legal residence, and work authorization with your recruiter during your initial conversation. Unless otherwise stated for a specific role, we require working hours that overlap with Eastern Time (ET).

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.

Commitment to Equal Opportunity

Chainlink Labs is an equal opportunity employer. All qualified applicants will receive equal consideration for employment in compliance with applicable laws, regulations, or ordinances. If you need assistance or accommodation due to a disability or special need when applying for a role or in our recruitment process, please contact us via this form.

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