Senior 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
You will design, build, and maintain backend systems that power secure crypto wallets and blockchain products. You will implement robust support for MPC and multi-signature setups, optimize system performance, and apply secure coding practices. You will collaborate with partners and cross-functional stakeholders, provide technical guidance, and take ownership of end-to-end backend solutions.
Requirements
- 5+ years of hands-on backend engineering experience with strong focus on Go
- Proven experience building crypto wallets or blockchain-related products
- Deep understanding of UTXO and account models state management and consensus mechanisms
- Extensive experience in secure coding practices and blockchain security principles
- Familiarity with cloud platforms and competitive cloud service setups
- Strong problem-solving skills independent self-driven mindset and ability to take ownership
- User-centric approach to designing and launching high-quality products
Responsibilities
- Design, develop, and maintain crypto wallet systems using Go
- Implement support for multi-party computation (MPC) and multi-signature configurations
- Architect modular and scalable backend systems with strong security and performance focus
- Collaborate with partners and internal teams to optimize integrations and configurations
- Provide technical guidance to Product Security Finance and Engineering stakeholders
- Assess client requirements and recommend tailored technical solutions
- Define architectures and systems to enable mass adoption while preserving security
- Own delivery of high-quality secure backend solutions and drive continuous improvement
