Senior Telephony Infrastructure Engineer

Senior Telephony Infrastructure Engineer

Designed for beauty, built for growth, Patient Now brings clinical-grade EMR with intuitive charting, smart AI automation, advanced photography, marketing, patient engagement, and seamless practice management into one elegant system. Everything works together naturally, helping clients create a smooth, intentional patient experience from consultation to checkout. Supported by a U.S.

-based team that understands the pace and artistry of aesthetics, Patient Now provides the technology and partnership to scale with confidence.

This role will focus on the Recura product line, a newly integrated part of Patient Now.

Vision
:
Empowering practices and businesses to improve health and wellness worldwide by helping their clients look and feel their best.

Mission
:
Patient Now is elevating businesses focused on beauty, wellness and medical aesthetics with innovative, all-in-one software and consulting service solutions. People who partner with us stand out in the industry with strong market differentiation, while streamlining operations for long term success and sustainable growth.

• Show up – being present and supportive: for each other through collaboration and respect, for our customers with exceptional service, and for the business with dedication to excellence and growth.
• Own the outcome – By understanding the objective, exceeding expectations with pride, confirming resolution, communicating early and often, and continuously learning and improving
• Be Authentic – By sharing thoughts and opinions, keeping promises, showing your true self, and engaging with respect

The Senior Telephony Infrastructure Engineer owns Recura’s real-time communications layer, including voice calling, call routing, and A2P messaging infrastructure. This role is responsible for building and operating deterministic, observable, and compliant telephony systems that behave correctly under carrier retries, partial failures, and real-world edge cases.

This is a senior individual contributor role with mentorship expectations. You will design call routing, missed-call detection, and messaging compliance systems that downstream product teams depend on, while insulating them from carrier complexity and failure modes.

• Design, implement, and operate SIP-based voice infrastructure and WebRTC calling.
• Build and maintain call routing systems including schedules, ring groups, IVR, voicemail, and overflow logic.
• Design timezone-aware, rules-based routing
  , including overnight ranges and day-of-week matching.
• Implement missed-call, abandoned-call, and after-hours detection with deterministic, idempotent event emission.
• Own SMS/MMS carrier integrations, including A2P 10
  
  DLC registration workflows and enforcement
  .
• Build and maintain ISV-style subaccount onboarding
  , including phone number provisioning and messaging service assignment.
• Implement answering machine detection (AMD) with async callbacks and configurable detection behavior.
• Design VoIP observability systems for call session tracking, event correlation, and production debugging.
• Handle phone number lifecycle operations, including migration between messaging services with rollback safety.
• Mentor engineers on reliability, event-driven design, and debugging complex production systems.

To perform the job successfully, an individual should demonstrate the following.

• Adaptability - Demonstrates persistence and overcomes obstacles. Measures self against standard of excellence. Recognizes and acts on opportunities. Sets and achieves challenging goals. Takes calculated risks to accomplish goals.
• Business Ethics – Inspires the trust of others. Keeps commitments. Treats people with respect. Upholds organizational values. Works with integrity and ethically.
• Communications - Exhibits good listening and comprehension. Expresses ideas and thoughts in written form. Expresses ideas and thoughts verbally. Keeps others adequately informed. Selects and uses appropriate communication methods.
• Continuous Learning - Assesses own strengths and weaknesses. Pursues training and development opportunities. Seeks…