Summary

We are looking for a Senior Backend Engineer to join our Crypto Custody team. Our team is responsible for designing, developing, and scaling secure, high-performance blockchain and crypto wallet products for Ava Labs and our ecosystem partners. This role is an integral part of our technical leadership group—pioneering cutting-edge solutions, building modular and scalable crypto wallet infrastructures, and ensuring the highest standards of security.

WHAT YOU WILL DO

1. Innovate & Architect:
2. Design, develop, and maintain crypto wallet systems using Golang, ensuring robust support for protocols such as multi-party computation (MPC) and multi-signature (multi-sig) configurations
3. Architect modular, scalable backend systems with an unwavering commitment to security and performance
4. Collaborate Across Teams:
5. Work closely with Partners to optimize configurations and setups for Ava Labs products
6. Provide technical guidance across Business Development, Product, Security, Finance, and Engineering teams
7. Drive Product Advancements:
8. Assess opportunities and recommend solutions tailored to client needs
9. Establish architectures and systems that ensure mass adoption of Ava Labs products while maintaining top-tier security
10. Exhibit Extreme Ownership:
11. Demonstrate an independent, driven mindset that thrives on taking initiative without being micromanaged
12. Take full responsibility for delivering high-quality, secure backend solutions while continuously embracing challenges, learning, and pushing boundaries to drive product excellence

WHAT YOU WILL BRING

1. Technical Expertise:
2. 5+ years of hands-on engineering experience with a strong focus on backend systems, particularly in Golang—experience with JavaScript is a plus
3. Proven track record in building crypto wallets or blockchain-related products 
4. Deep understanding of both UTXO and Account models, state management, and consensus mechanisms
5. Extensive experience in secure coding practices with a very strong understanding of security principles as they apply to blockchain and crypto wallet systems
6. Familiarity with competitive technologies and cloud service setups
7. Leadership & Independence:
8. A self-driven, independent mindset with extreme ownership over your work and outcomes
9. Thrive in an environment where you are empowered to take initiative and work autonomously without being micromanaged
10. Excellent problem-solving skills and a proactive approach to overcoming technical challenges
11. Customer Focus:
12. A user-centric approach to designing and launching high-quality products that fuel the growth of the crypto economy
13. Proven ability to empathize with customer challenges and translate those insights into actionable development priorities

NICE TO HAVE

1. 3+ years of solutions architecture experience
2. Experience with multi-party computation (MPC) protocols
3. Hands-on experience with advanced security testing tools and methodologies
4. Expertise in infrastructure engineering, including Kubernetes, CI/CD pipelines, and cloud platforms such as AWS, GCP, or Azure
5. Prior senior-level engineering experience in a blockchain or crypto organization

Salary Range: $158,440 to $198,050

Skills

• Development
• Leadership
• Problem Solving
• Software Architecture
• Software Engineering
• Team Collaboration