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 ******** Mac equivalent or higher; Windows 10 or above / Catalina ***** 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

📌 Lead Full-Stack Engineer - Voice Ai & Integrations (México)
🏢 Berry Virtual | MedVirtual | AI Virtual
📍 México