Lead Full-Stack Engineer - Voice AI & Integrations

Key Responsibilities: - CRM, EMR/EHR, and Business-System Integrations: Design, build, and maintain integrations with legal practice-management platforms, medical systems, accounting platforms, calendars, and other industry tools. - Reliable Appointment Scheduling: Own availability checks, booking, rescheduling, cancellations, confirmations, and synchronization across systems. Resolve time-zone issues, duplicate bookings, scheduling conflicts, and failed updates. - Voice AI Workflows: Connect Twilio and OpenAI conversations to dependable backend actions, including intake, contact creation, scheduling, call transfers, and follow-up. - Integration Architecture: Build reusable connectors with secure authentication, consistent data mapping, background processing, retries, duplicate prevention, monitoring, and recovery from failures. - Full-Stack Development: Deliver changes across the frontend, backend, databases, and third-party services. Investigate production problems and implement fixes directly. - Infrastructure and Reliability: Improve cloud infrastructure, deployments, CI/CD, observability, performance, security, and operating costs. - Technical Leadership: Work closely with the CTO to translate priorities into practical technical plans. Guide developers, review code, remove blockers, and stay accountable through testing, deployment, and customer use. Requirements Must-Have - Typically 7+ years of professional software engineering experience, with demonstrated ownership of production SaaS systems. - Strong TypeScript/JavaScript skills, substantial backend experience, and proficiency in Python. - Experience building frontend applications, backend services, APIs, and relational database systems. - Proven experience shipping and maintaining multiple production integrations using REST APIs, OAuth 2.0, webhooks, and asynchronous processing. - Strong understanding of two-way synchronization, rate limits, token refresh, partial failures, reconciliation, and data consistency. - Experience with scheduling or transactional workflows where incorrect or duplicate actions have real consequences. - Practical cloud infrastructure, containerization, CI/CD, logging, monitoring, and incident-response experience. - Ability to understand an existing codebase quickly, identify root causes, and deliver focused improvements. - Clear communication, sound technical judgment, and experience leading other engineers while remaining an active individual contributor. Nice-to-Have - Twilio voice, real-time audio streaming, OpenAI APIs, and AI tool/function calling. - Google Calendar, Microsoft Graph, and scheduling-platform integrations. - Legal platforms such as Clio, MyCase, PracticePanther, or Lawmatics. - Healthcare integrations such as athenahealth or Office Ally, including familiarity with FHIR/HL7 where applicable. - Experience engineering systems that handle sensitive patient or client information, including tenant isolation, access controls, audit trails, and secure credential storage. - Experience navigating vendor approval processes, restricted APIs, sandbox access, and integration partnerships. System and Work Setup Requirements: - A stable and high-speed internet connection preferably 25 MBPS or higher with backup in cases of power interruption or service provider issues. - Own PC/laptop with 8GB RAM, and a processor of Core i5 / AMD Ryzen 3 / 2013 Mac equivalent or higher; Windows 10 or above / Catalina 10.15 or newer; with up-to-date web browsers, and security software, 500GB/128 SSD storage - Headset/earphone with noise cancellation and webcam at 720p or higher resolution - A designated, quiet, and well-organized workspace free from distractions to facilitate focused work Benefits - Permanent remote work setup - Competitive starting rate paid in USD - Internet Allowance - HMO insurance (PH) - Paid US holidays - Paid Vacation and Sick Leaves