Lead Full-Stack Engineer - Voice Ai & Integrations

Berry Virtual | Medvirtual | Ai Virtual; México; A distancia; MXN 2.620.000 - 3.930.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

HMO insurance (PH)

Paid US holidays

Paid Vacation and Sick Leaves

Permanent remote work setup

Descripción de la vacante

Berry Virtual is seeking a Lead Full-Stack Engineer to own Voice AI integrations and scalable platforms. You will design, build, and maintain SaaS-grade systems across frontend, backend, and data layers, collaborating closely with product and CTO.

You will lead technical direction, review code, implement robust integrations with Twilio/OpenAI, and ensure reliability, performance, and security in a fully remote, international team.

Formación

• 7+ years of professional software engineering experience with production SaaS ownership.
• 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.

Responsabilidades

• Design, build, and maintain integrations with legal practice-management platforms, medical systems, accounting platforms, calendars, and other industry tools.
• Own availability checks, booking, rescheduling, cancellations, confirmations, and synchronization across systems.
• Connect Twilio and OpenAI conversations to backend actions: intake, contact creation, scheduling, call transfers, follow-up.
• Build reusable connectors with secure authentication, data mapping, retries, monitoring, and recovery from failures.
• Deliver changes across frontend, backend, databases, and third-party services; investigate production problems and deploy fixes.

Conocimientos

Frontend development

Backend services

APIs & integrations

Relational databases

REST APIs

OAuth 2.0

Webhooks

Asynchronous processing

Scheduling workflows

Cloud infrastructure

Containerization

CI/CD

Observability & monitoring

Code review & leadership

Active IC

Herramientas

Twilio

OpenAI APIs

Google Calendar

Microsoft Graph

Clio/MyCase/PracticePanther/Lawmatics

FHIR/HL7

Descripción del empleo

• 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.


• 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.


• 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


• Permanent remote work setup


• Competitive starting rate paid in USD


• HMO insurance (PH)


• Paid US holidays


• Paid Vacation and Sick Leaves

Lead Full-Stack Engineer - Voice AI & Integrations MX