Backend Engineer
Squads
About Squads:
Since 2021, we’ve built products and APIs that unlock the benefits of modern money.
We began with Squads Protocol, the autonomous finance layer built on Solana. Secured by Solana’s permissionless ledger, Squads Protocol enables programmable payments, 24/7 USD liquidity, competitive yields and security enforced by deterministic code, not corporate promises. The new financial stack is being built on blockchains, powered by tokenized assets, and designed for a world where value moves as freely as information. We build on Squads Protocol to bring this stack to every developer, business, and individual.
Stablecoins were once a niche experiment. Today, they’re one of the fastest-growing technologies in history. The question isn’t if stablecoins consume every aspect of finance, but when. We’re here to compress that timeline. Join us.
Role Overview:
We're looking for a Senior Backend Engineer to join our API team, focusing on building and scaling our stablecoin banking API infrastructure. You'll work on core services that enable platforms to create programmable smart accounts, manage payments, and integrate stablecoin banking features into their products.
Key Responsibilities:
- Design and implement core API services focusing on smart account creation, transaction processing, and payment flows
- Build resilient services handling key management, custody solutions, and transaction orchestration
- Develop and maintain API integrations with various key management and payment orchestration vendors
- Create robust transaction submission and monitoring systems for the Solana network
- Implement secure API authentication, rate limiting, and monitoring systems
- Work closely with the Protocol team to expose new smart account features through the API
Required Qualifications:
- 5+ years of backend development experience with a focus on API development
- Strong experience building and maintaining production REST APIs
- Expertise in Rust or similar systems programming languages
- Experience with distributed systems and event-driven architectures
- Proven track record of implementing API security best practices
- Experience with cloud platforms (GCP/AWS) and infrastructure as code (Terraform)
Preferred Qualifications:
- Experience building financial services or payment processing APIs (highly valuable)
- Background in implementing webhook systems and handling asynchronous flows
- Familiarity with blockchain technology, particularly Solana would be a plus
- Experience with key management systems or custody solutions
- Knowledge of payment systems and stablecoin infrastructure
What Sets You Up For Success:
- Strong background in fintech or payments (like building checkout systems or payment processing)
- Experience with high-throughput API systems handling financial transactions
- Familiarity with implementing complex state machines for transaction flows
- Background in building developer-focused products and APIs
What We Offer:
- Opportunity to shape the future of stablecoin banking infrastructure
- Work with a global, remote-first team
- Competitive compensation package including equity
- Flexible work arrangements
- Collaborative environment focused on technical excellence
If you're excited about building the API infrastructure that will power the next generation of stablecoin banking services, we'd love to hear from you.