Voice Solutions Architect – Enterprise Telephony AI

Decagon; Greater London; On-site; GBP 144,000 - 216,000; Full time

Benefits offered by this job

Medical, Dental, and Vision benefits

Retirement plan

Parental leave

Fertility and family building benefits

Wellness stipend

Daily lunches in the office

25 days of statutory leave (UK)

Job summary

Decagon is hiring a Solutions Architect – Voice to guide Enterprise deployments of Decagon's AI voice agents. You will work across pre-sales, telephony architecture, and CX strategy to ensure seamless integration with client contact centers.

You will define best practices for voice deployment, collaborate with Sales, Product, and Engineering, and build credibility with CIOs, network teams, and CX leaders as Decagon scales its voice offerings.

Qualifications

• 8–10+ years in customer-facing technical roles (Solutions Architect/Engineer, TAM, or similar).
• Deep fluency in enterprise contact center platforms and SIP/telephony fundamentals.
• Hands-on CPaaS infrastructure experience (Twilio, Telnyx).
• Ability to translate complex voice environments into actionable deployment plans.

Responsibilities

• Partner with Account Executives to design voice deployment solutions.
• Translate customer contact center landscapes into integration strategies for Decagon's voice platform.
• Design SIP integration approaches (BYOC, transfer semantics, media paths) for various topologies.
• Diagnose multi-leg call flows and resolve SIP/media issues in production.
• Establish scalable pre-sales processes and reusable reference architectures.

Skills

Voice & telephony

Enterprise customer engagement

Pre-sales / solutioning

SIP fundamentals

CPaaS experience

Tools

Twilio

Telnyx

PCAP/Wireshark

Job description

Decagon is hiring a Solutions Architect – Voice to guide Enterprise deployments of Decagon's AI voice agents. You will work across pre-sales, telephony architecture, and CX strategy to ensure seamless integration with client contact centers.

You will define best practices for voice deployment, collaborate with Sales, Product, and Engineering, and build credibility with CIOs, network teams, and CX leaders as Decagon scales its voice offerings.