Senior Backend Engineer — Fintech APIs, Node.js, Scale

Strategic Employment Partners (SEP); Washington (District of Columbia); On-site; USD 160,000 - 240,000; Full time

Benefits offered by this job

Performance bonus

Equity participation

Comprehensive medical, dental, and vis

401(k) with employer match

Job summary

Strategic Employment Partners (SEP) is seeking an experienced backend engineer to build and scale Node.js services powering fintech and SaaS products for healthcare providers across the U.S. You will design APIs, optimize databases, and contribute to platform reliability and security in a fast-growing fintech environment.

You will collaborate with product managers, designers, and other engineers while owning significant portions of the product roadmap and delivering high-performance, secure

Qualifications

• 5+ years backend development with Node.js (Express.js or similar).
• Experience designing and building RESTful APIs.
• Strong PostgreSQL and relational database knowledge.
• Understanding of scalable backend architecture and systems design.

Responsibilities

• Design and build backend services powering fintech and SaaS products for healthcare customers.
• Develop scalable APIs and database schemas for new features.
• Maintain Node.js applications with focus on performance, reliability, and security.
• Investigate and resolve production issues in partnership with Customer Support.
• Collaborate with product managers, designers, and engineers to deliver new functionality.

Skills

Node.js backend

Express.js

RESTful APIs

PostgreSQL

Backend architecture

Fintech experience

Production issue troubleshooting

Ownership & communication

Job description

Strategic Employment Partners (SEP) is seeking an experienced backend engineer to build and scale Node.js services powering fintech and SaaS products for healthcare providers across the U.S. You will design APIs, optimize databases, and contribute to platform reliability and security in a fast-growing fintech environment.

You will collaborate with product managers, designers, and other engineers while owning significant portions of the product roadmap and delivering high-performance, secure