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Senior Backend Software Engineer

Healthcare Technology Corp

The Role

Raydar is recruiting for this role on behalf of our client. Serve as the lead backend engineer for an early-stage software platform, owning system design, reliability and delivery across a range of high-stakes services. The work spans real-time data processing, transaction handling and payment flows, with broad architectural influence from day one.

What You'll Do
  • Own the full backend, including APIs, database design, access controls, backups, staging environments, monitoring and deployments.
  • Build and operate a real-time pricing service that collects data from several sources on a frequent schedule and routes requests to the best option.
  • Manage data flowing in and out of a third-party processing system where errors have immediate real-world consequences.
  • Design and build an in-house processing engine, validating it against the existing system using replayed production traffic until results match.
  • Own payment infrastructure for incoming and outgoing fund flows, meeting strict uptime targets.
  • Make foundational architecture and schema decisions so the platform scales smoothly as usage grows many times over.
What We're Looking For
  • 3+ years of backend engineering experience with strong architecture skills.
  • Experience owning production systems where downtime or errors directly affect revenue, such as payments, ledgers, trading or critical infrastructure.
  • Background in backend-focused full-stack work, system architecture and database schema design.
  • Comfort working as the sole engineer in an early-stage startup environment.
  • Proficiency with AI-assisted development tools.
  • Confidence to challenge technical decisions and give candid pushback to a strong-minded founder.
  • Ability to work in person from the New York office.
  • A computer science or related degree is preferred.
Bonus Points
  • Experience at a well-regarded fintech or infrastructure startup.
Location and Work Model
  • New York, NY, United States
  • On-site
  • Full-time
Compensation, As The Posting Describes It
  • Equity
Vacancy posted 2 days ago
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