Senior Software Engineer, Institutional Custody
Ava Labs is a for-profit blockchain technology company that develops and supports Avalanche-based infrastructure, applications, and custom blockchains.
Maintainer signals as of 9/2/2026
Funding history
Investors
About Ava Labs, Inc.
Ava Labs develops software and services for the Avalanche ecosystem, including support for smart contracts, decentralized applications, subnets, APIs, bridges, wallet software, staking, and node operation. Its website highlights Avalanche, AvaCloud, and Core, and describes AvaCloud as a managed service for launching custom blockchains. The company works with organizations seeking scalable blockchain solutions for business, finance, and other real-world applications, while also supporting developers, ecosystem projects, universities, and community participants.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
Design, develop, and maintain crypto wallet systems and backend services using TypeScript, Node, REST APIs, and Go. Architect modular, scalable systems with a security-first approach, build real-time features, and collaborate with partners and cross-functional teams to deliver production-grade solutions.
Requirements
- 5+ years of hands-on engineering experience delivering backend and fullstack features with TypeScript and Node
- Prior senior-level engineering experience in a blockchain, DeFi, or crypto organization
- Deep understanding of UTXO and account models and consensus mechanisms
- Experience designing and operating REST APIs and modeling data in Postgres or SQLite
- Experience building real-time features with WebSockets and webhooks
- Familiarity with Kubernetes, Docker, CI/CD, and Cloudflare
- Experience with GitHub Actions and microservices architecture
- Security-first mindset including secrets management, auditability, and observability
Responsibilities
- Design, develop, and maintain crypto wallet systems using TypeScript, Node, REST APIs, and Go
- Architect modular, scalable backend systems focused on security and performance
- Design and operate REST APIs and model data using Postgres or SQLite
- Build real-time features with WebSockets and webhooks
- Collaborate with partners and cross-functional teams on integrations and configurations
- Implement auditability and observability and manage secrets
- Assess client needs and recommend tailored technical solutions
- Deliver high-quality, secure backend solutions with strong ownership
