Senior Backend Engineer

NxT Level

Senior Backend Engineer

New York, NY
Full Time
Paid
  • Responsibilities

    Senior Backend Engineer

    WHY THIS ROLE EXISTS

    Our client is building AI technology to make healthcare accessible and free for everyone. They are seeking backend engineers to develop scalable infrastructure that supports billions of AI driven consultations while ensuring medical safety and HIPAA compliance.

    This role is central to delivering reliable and secure systems at massive scale.

    WHAT YOU WILL BUILD

    Healthcare API Infrastructure

    Design and maintain high performance APIs using Python and cloud services to handle millions of requests each month
    Develop RESTful APIs that support AI healthcare tools and internal platform workflows
    Process sensitive patient data in real time while maintaining strict HIPAA compliance
    Coordinate internal APIs to support web platforms and AI decision making

    Integration and Data Systems

    Implement secure health record exchange with EHR systems, national health networks, and QHINs
    Integrate with telehealth providers, analytics platforms, and third-party healthcare APIs
    Process large volumes of sensitive data with encryption and compliance safeguards
    Build partner API integrations across multiple diverse healthcare systems

    Scale and Reliability

    Optimize databases for high-volume, complex healthcare queries
    Implement secure caching and session management using Redis
    Develop error handling, failover, and disaster recovery systems for mission critical services
    Enhance performance and reliability to support rapid user growth

    AI System Integration

    Coordinate backend workflows for AI tools and clinical decision making
    Develop Python-based deterministic systems alongside AI agents to ensure clinical accuracy
    Build APIs supporting model inference, data preprocessing, and result handling
    Implement validation layers and human escalation protocols for AI safety

    This role also includes work on healthcare compliance automation, advanced system monitoring, multi-region deployment, and foundational backend infrastructure for future AI healthcare capabilities.

    HOW THE CLIENT OPERATES

    Engineering led environment with minimal process overhead
    Flat structure with direct collaboration with company leadership
    End to end ownership from concept to production
    AI assisted development tools encouraged
    Fast moving team with strong judgment and accountability

    WHAT THE CLIENT IS LOOKING FOR

    Background

    Computer science degree or equivalent hands on experience
    Engineering, math, or related technical degrees welcomed
    Track record of operating at a high engineering standard
    Founder level ownership mindset or early stage startup experience preferred
    Ability to work independently while collaborating across teams

    Technical Experience

    Six or more years of backend engineering experience
    Strong experience with Python and frameworks such as FastAPI or Flask
    Cloud services experience and high volume API handling
    Proficiency with relational databases and performance optimization
    Experience with Redis, caching strategies, and distributed systems design

    System Design and Integration

    Third-party API integration and webhook management
    Microservices architecture and distributed system patterns
    Security best practices for sensitive data and API design
    CI/CD pipelines, containerization, and deployment automation
    Monitoring, logging, and observability tools

    NICE TO HAVE

    Experience in healthcare, fintech, or other regulated industries
    Knowledge of healthcare data standards such as HL7, FHIR, and HIPAA compliance
    Experience with high-scale real time data processing
    Familiarity with AI and ML system integration and model serving
    Event-driven architectures, message queues, and async processing
    Exposure to healthcare workflows, EHR systems, or telehealth platforms
    Seed or Series A startup experience
    Advanced degree in CS, engineering, or related field

    WHAT THE CLIENT OFFERS

    Competitive compensation and meaningful equity
    Opportunity to build infrastructure impacting millions of patients globally
    Direct collaboration with company leadership and healthcare experts
    Access to modern backend and AI technologies
    Benefits reimbursement