Staff Software Engineer

Staff Backend Engineer – FinTech | New York City

Location: New York City (Onsite)

Salary: $225,000–$290,000 Base + Equity

Employment: Full-time

The Opportunity

We're partnering with an ambitious, venture-backed FinTech company that's modernising critical infrastructure across financial services.

They're building a next-generation technology platform that replaces fragmented, manual processes with scalable, intelligent systems. With a lean engineering team and experienced leadership, they're looking for a Staff Backend Engineer to take ownership of core backend architecture and help scale the platform through its next phase of growth.

This is a highly hands-on position offering significant technical ownership, direct influence over engineering decisions and the opportunity to build systems used by demanding institutional clients.

Key Responsibilities

• Design, develop and scale high-performance backend services supporting complex financial workflows.
• Take ownership of backend architecture, scalability, reliability and performance optimisation.
• Build and optimise distributed services capable of handling growing transaction volumes and data-intensive workloads.
• Improve database performance, data access patterns and overall system efficiency.
• Develop and maintain cloud infrastructure to support secure, resilient production environments.
• Help establish the technical foundations for AI-driven functionality and automation.
• Work closely with senior leadership to shape engineering priorities and long-term architecture.
• Contribute to technical standards, architectural decisions and engineering best practices.

What We're Looking For

• Strong experience designing and building production-grade backend systems.
• Expertise in Java, Spring Boot or comparable backend technologies.
• Proven experience scaling PostgreSQL databases and optimising performance.
• Strong hands-on experience with AWS in production environments.
• Solid understanding of distributed systems, API design, system reliability and scalability.
• Ability to take ownership of complex technical challenges from architecture through implementation.
• Comfortable working in a small, fast-moving engineering team with considerable autonomy.
• Previous FinTech or financial services experience is advantageous, but not essential.

Why Consider This Opportunity?

• Competitive compensation: $225K–$290K base salary plus equity.
• Technical ownership: Shape the architecture and scalability of a growing financial technology platform.
• High-impact engineering: Work on complex backend challenges with meaningful production requirements.
• Direct influence: Collaborate closely with company leadership and help define engineering direction.
• AI innovation: Contribute to infrastructure supporting intelligent automation and emerging AI capabilities.
• Early-stage opportunity: Join a small team where individual contributions have a direct impact on the product and business.

Interested?

If you're a strong backend engineer who enjoys solving difficult scalability challenges, taking architectural ownership and building high-performance systems, we'd be keen to speak with you.

Apply directly or get in touch for a confidential discussion.