We are looking for a Senior Software 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.
• Innovate & Architect
- Design, develop, and maintain crypto wallet systems using TypeScript, Node, & REST API, & Go. Pushing to advance the client application experience
- Architect modular, scalable backend systems with an unwavering commitment to security and performance
• Collaborate Across Teams
- Work closely with Partners to optimize configurations and setups for Ava Labs products
- Provide technical guidance across Business Development, Product, Security, Finance, and Engineering teams
• Drive Product Advancements
- Assess opportunities and recommend solutions tailored to client needs
- Establish architectures and systems that ensure mass adoption of Ava Labs products while maintaining top-tier security
• Exhibit Extreme Ownership
- Demonstrate an independent, driven mindset that thrives on taking initiative without being micromanaged
- 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
- API & data ownership: designed/operated REST APIs, modeled data (Postgres/SQLite), and built real-time features (WebSockets/webhooks) with strong DX and documentation.
- Infrastructure Exposure (Basic Kubernetes (K8), Docker, CI/CD, Cloudflare)
- Experience with Github Actions, as well as developing microservices architecture
- Security-first mindset: collaborate effectively with Security/Compliance; manage secrets; build auditability and observability into the product.
- Prior senior-level engineering experience in a blockchain, DeFi, or crypto organization
- Deep understanding of both UTXO and account models, state management, consensus mechanisms
- 5+ years of hands-on engineering experience delivering features across Backend and Fullstack (TypeScript/Node)
• Leadership & Independence
- A self-driven, independent mindset with extreme ownership over your work and outcomes
- Thrive in an environment where you are empowered to take initiative and work autonomously without being micromanaged
- Excellent problem-solving skills and a proactive approach to overcoming technical challenges
• Customer Focus
- A user-centric approach to designing and launching high-quality products that fuel the growth of the crypto economy
- Proven ability to empathize with customer challenges and translate those insights into actionable development priorities
Nice to Have
- Experience or familiarity integrating services with Go
- Familiarity with multi-party computation (MPC) protocols
- Familiarity with React
Salary Range: $158,440 to $198,050
(**This is not a guarantee of compensation or salary, a final offer amount may vary based on factors including but not limited to experience and geographic location. NYC metro candidates are required to be in office 2-3x/week (with exceptions)).
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