Ava Labs is hiring a Staff Backend Engineer for their Institutional Custody division, focused on designing and scaling secure blockchain and wallet infrastructure. This role sits at the intersection of technical leadership and hands-on engineering, leading long-term architectural direction and backend development using Golang.

The position works closely with cross-functional teams — including Product, Security, and Business Development — to build modular, production-grade crypto storage solutions with strong security guarantees. The ideal candidate has experience with blockchain protocols, wallet engineering, and a deep understanding of UTXO vs. Account models. The role requires a self-driven mindset with a high degree of ownership and accountability in delivering secure systems at scale.

2️⃣ Responsibilities

Innovate & Architect

Build secure wallet systems using Golang
Implement MPC and multi-sig solutions
Architect modular backend services focused on performance and security

Collaborate Across Teams

Work with partners to optimize product integrations
Provide technical guidance across multiple internal departments

Drive Product Advancements

Identify technical opportunities and solutions for customers
Design systems that support mass crypto adoption

Exhibit Extreme Ownership

Operate autonomously, driving execution end-to-end
Take full responsibility for backend quality and security

3️⃣ Requirements

5+ years backend engineering experience
Experience building crypto wallets or blockchain systems
Mastery of UTXO + Account models, consensus, state management
Strong secure coding & security architecture knowledge
Familiarity with cloud deployments and competitive tech stacks
Self-directed personality with strong ownership
Strong problem-solving abilities and user-centric mindset

4️⃣ Nice to Have

3+ years solution architecture experience
Golang and JavaScript experience
MPC protocol familiarity
Security tooling & penetration testing knowledge
Infrastructure experience: Kubernetes, CI/CD, AWS, GCP, Azure
Senior-level engineering in a blockchain org
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