[Remote] Full Stack Engineer

Note: The job is a remote job and is open to candidates in USA. Opus Health is building next-generation infrastructure to automatically discover, verify, and apply HSA/FSA benefits at the point of care, modernizing healthcare payments. The Senior Full-Stack Engineer will co-create the product, platform, and engineering function by owning full verticals, leading architecture decisions, building integrations and payment systems, and shipping secure production code.

Responsibilities

• Design and build core modules: Direct integrations, eligibility verification, payment processing, RPA workflows, and provider-facing dashboards
• Architect facets of the early platform and select, build, and manage integrations with partners like Stripe and Stedi
• Own full verticals end to end — patient flows, provider dashboards, and payments UX
• Help launch and scale pilots across specialty healthcare and enterprise software companies
• Build upon our engineering workflows, deployment pipelines, and security/compliance practices
• Document, debug, and test across the stack
• Contribute to our engineering culture, including future hiring and mentorship

Skills

• BS or MS in Computer Science, Engineering, or a related field
• 4-6+ years of experience as a full-stack or backend engineer
• Experience designing and deploying highly available, fault-tolerant systems on a cloud platform (GCP or AWS)
• Experience working at an early-stage startup or building 0→1 products
• Strong communication skills and the ability to collaborate effectively with cross-functional teams and customers
• A passion for building systems that are intuitive, scalable, and impactful
• Experience in healthcare tech, fintech APIs, or RPA tools
• Hands-on experience with Stripe, Plaid, or Finix integrations
• Familiarity with bringing AI/ML techniques into a product

Benefits

• Equity and competitive salary: You’ll have a stake in the company you’re helping build.
• You’ll be a core member of the engineering team, shaping the product, the culture, and the technical direction of the company.
• The opportunity to tackle a multi-billion dollar problem in one of the most recession-proof industries, backed by a founder with a deep VC and operator background in this specific niche.
• Hybrid (US) — Austin, TX or willingness to relocate preferred

Company Overview