Senior Full-Stack Engineer at HLH Holdings LLC dba Highlight Health – Philadelphia, Pennsylvania
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About This Position
Overview
Highlight Health is a mission-driven company that protects consumer rights and controls healthcare costs exclusively for self-funded employers and their stop loss carriers. We are a profitable, fast-growing company without private equity investors.
We are currently upgrading our core operations into a sophisticated, proprietary Claims
Intelligence Platform. This isn’t a prototype; it is an innovative system of record handling
protected health information (PHI) and generating financial recommendations with real-world
legal and economic weight.
Highlight Health engineers new ways to protect consumer rights and control healthcare costs for self-funded employers. Nearly every American has felt the pain of the skyrocketing cost of healthcare. Highlight Health brings them solutions. We use our subject-matter expertise to reduce costs for employers and relieve ordinary Americans of burdensome medical costs. Highlight Health is proud of its inclusive workplace that brings together highly skilled leadership and employees from all walks of life.
We are looking for a Senior Full-Stack Engineer to serve as the permanent technical lead and quality gate for this platform build. The team is five strong domain experts who know healthcare claims deeply, building features in parallel using AI-assisted development tools. Pull requests come fast. Your job is to make sure every feature that ships are correct, secure, and architecturally sound.
At Highlight Health, the output of your work matters. You will be the technical authority on a platform where the “correctness bar” is exceptionally high — because the results directly affect what employers pay for healthcare. If you want to own the quality standard and build something that genuinely matters, we would love to hear from you.
Essential Duties and Responsibilities
- Own the application infrastructure: repricing validation suite, multi-tenant data isolation tests, and state machine coverage
- Write certain core component logic by hand. This is financial output employers act on and must be deterministic, auditable, and correct
- Review every pull request touching financial logic, data access patterns, or module boundaries
- Triage and unblock the team when architectural decisions cannot be resolved at the workstream level
- Take full technical authority with the CTO as your escalation path for decisions with broad business impact
The Technical Stack
- Backend: Python 3.12, FastAPI, async SQLAlchemy 2.0, Alembic migrations
- Database: Azure Database for PostgreSQL — HIPAA-eligible, zone-redundant, row-level security enforced at both application and database layers
- Infrastructure: Azure Container Apps (dev / staging / prod), Azure Service Bus for async job processing, Azure DevOps CI/CD, Azure Blob Storage
- Frontend: React 18 / Vite SPA for the internal application; Next.js for the external client portal
- AI and OCR: Anthropic Claude via Azure AI Foundry for document extraction; Azure Document Intelligence for OCR processing
- Quality: pytest, Ruff linting, automated module boundary enforcement in CI
Experience and Qualifications
- Experience: 7–10 years in full-stack engineering, with meaningful time as the most
senior engineer on a team.
- Technical depth: Python and PostgreSQL are your core stack in production. You understand async patterns, database-level security, and migration discipline well enough to implement and review them.
- Full-stack capability: You can review a React pull request and catch both structural problems and data exposure risks.
- Regulated environments: You understand the nuances of working with sensitive data (HIPAA, SOC 2, or PCI) and prioritize audit trails and data access controls.
- Modern development workflow: You are comfortable governing teams using AI-assisted tools like Cursor and Claude Code to maintain high quality at a fast pace.
- Healthcare or fintech background: A genuine advantage. The platform produces repricing recommendations and defensible packets that affect what employers pay for healthcare.