Staff Software Engineer

About Blvdpay

Blvdpay is an early-stage fintech company building a crypto and payments platform for consumers across the US and LATAM.

We're building secure, scalable infrastructure for digital wallets, payments, crypto on/off-ramps, and financial transactions from the ground up.

The Role

We're looking for a Staff Software Engineer (Backend) to take technical ownership of critical parts of our wallet, transaction, payment, and crypto infrastructure.

This is a hands-on technical leadership role. You'll drive architecture and system design while continuing to write production code, solve complex distributed-systems problems, and mentor engineers.

What You'll Do

• Design and build scalable backend services using Java & Spring Boot
• Own architecture for wallet, ledger, transaction, payment, and crypto systems
• Build systems handling financial and blockchain transactions
• Integrate with blockchain networks, custody providers, crypto APIs, and payment providers
• Design reliable systems around idempotency, concurrency, consistency, and fault tolerance
• Build REST APIs and event-driven services
• Work with PostgreSQL, MongoDB, AWS, Docker, and CI/CD
• Lead system design and architectural decisions
• Review code, mentor engineers, and raise engineering standards
• Troubleshoot complex production and scalability issues
• Work closely with Product, QA, Security, and DevOps

What We're Looking For

• 8+ years of software engineering experience
• Strong production experience with Java & Spring Boot
• Mandatory professional experience in blockchain / cryptocurrency / crypto-fintech
• Hands-on experience with crypto wallets, blockchain transactions, custody, exchanges, payments, or on/off-ramps
• Strong understanding of blockchain fundamentals and transaction lifecycle
• Experience with microservices and distributed systems
• Strong PostgreSQL experience; exposure to MongoDB/NoSQL
• Experience with AWS and production systems
• Strong understanding of system design, scalability, concurrency, idempotency, and transactional integrity
• Experience with Docker and CI/CD
• Demonstrated technical leadership, mentoring, and architecture ownership
• Comfortable working in a fast-paced early-stage startup

Nice to Have

Experience with Ethereum/EVM, Solana, Bitcoin, Fireblocks, Dynamic, Kafka, SQS, Redis, Kubernetes, blockchain indexing, or fintech compliance.

Why Blvdpay?

• 🚀 Build from the ground up — shape the architecture from day one
• 🧠 Work on crypto, fintech, payments & distributed systems
• 🎯 High ownership and direct impact on technical decisions
• 👥 Work with a small, high-impact engineering team
• 💻 Stay hands-on while driving technical direction
• 🌎 Build products serving users across the US & LATAM
• If you've built real production systems with Java and have strong hands-on crypto/blockchain experience, we'd love to hear from you.