Senior Software Engineer, Institutional Custody

Location: New York

Senior Software Engineer, Institutional Custody

Looking to join a world‑class blockchain development team? Ava Labs makes it simple to deploy high‑performance solutions for Web3, led by innovations on Avalanche. The company was founded by Cornell computer scientists, who partnered with Wall Street veterans and early Web3 leaders to execute a promising vision for redefining the way people build permissionless networks.

Responsibilities

• Innovate & Architect:
- Design, develop, and maintain crypto wallet systems using Type Script, Node, REST API, and Go, pushing the client application experience forward.
- 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 micromanagement.
- Take full responsibility for delivering high‑quality, secure backend solutions while continuously embracing challenges, learning, and pushing boundaries.

What You Will Bring

• API & data ownership:
Designed/operated REST APIs, modeled data (Postgres/SQLite), and built real‑time features (Web Sockets/webhooks) with strong DX and documentation.

• Infrastructure exposure (Basic Kubernetes (K8), Docker, CI/CD, Cloudflare).

• Experience with Git Hub Actions and 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 (Type Script/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 micromanagement.
- 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).

Why Ava Labs

We’re an early‑stage Web3 company with a global, world‑class team of experts in computer science, economics, finance, marketing, and law. Our offices are in New York City and Miami. We are passionate about Web3 and redefining the way people build and use finance and decentralized applications of all kinds. Ava Labs is backed by early‑stage funding from Andreessen Horowitz, Initialized Capital, and Polychain Capital, with angel investments from Balaji Srinivasan and Naval Ravikant.

Equal Opportunity Employer

Ava Labs is committed to diversity in the workplace and we’re proud to be an Equal Opportunity Employer. We do not hire on basis of race, color, religion, creed, gender, national origin, citizenship, age, disability, veteran status, marital status, pregnancy, parental status, sex, gender expression or identity, sexual orientation, or any other basis protected by local, state or federal law. All employment is decided on the basis of qualifications, merit, and business need.

Seniority Level

Mid‑Senior level

Employment Type

Full‑time

Job Function

Engineering and Information Technology;
Software Development.

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