Staff Backend Engineer, Custody Wallets
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 high-performance crypto wallet backend systems using Go. Build modular, scalable services focused on security and performance, collaborate with partners and cross-functional teams, provide technical guidance, assess product opportunities, and own reliable production-grade solutions.
Requirements
- 5+ years of backend engineering experience
- Strong proficiency in Go
- Experience building crypto wallets or blockchain-related products
- Deep understanding of UTXO and Account models, state management, and consensus mechanisms
- Strong secure coding practices and blockchain wallet security principles
- Familiarity with cloud service setups and cloud technologies
- Ability to work independently with extreme ownership
- Excellent problem-solving skills and user-centric product focus
- Nice to have: solutions architecture, MPC protocols, security testing, Kubernetes, CI/CD, AWS, GCP, or Azure experience
Responsibilities
- Design crypto wallet systems supporting MPC and multi-signature configurations
- Develop and maintain backend services in Go with emphasis on security and performance
- Architect modular and scalable backend systems
- Collaborate with partners and cross-functional teams to optimize integrations
- Provide technical guidance across Business Development, Product, Security, Finance, and Engineering
- Assess opportunities and recommend tailored technical solutions
- Establish secure architectures that support mass adoption
- Own delivery of high-quality backend solutions and drive continuous improvement
