--- title: 'Solutions Architect, Voice - London at Decagon' canonical: 'https://feeny.ai/job/solutions-architect-voice-london-decagon-london-3bt8hy1erf6p' type: 'job' last_seen: '2026-09-19' --- # Solutions Architect, Voice - London at Decagon - **Company:** [Decagon](https://feeny.ai/companies/decagon) - **Location:** London, United Kingdom - **Compensation:** £144k–£216k - **Employment:** full-time - **Work type:** onsite - **Posted:** 2026-09-17 - **Last confirmed live:** 2026-09-19 - **Apply:** https://jobs.ashbyhq.com/decagon/c9d15c3c-e5e8-4b5b-8b28-dbeb6d5da2c0 ## Job description ## About Decagon Decagon is the leading conversational AI platform empowering every brand to deliver concierge customer experiences. Our technology enables industry-defining enterprises like Avis Budget Group, Block’s Cash App and Square, Chime, Oura Health, and Hunter Douglas to deploy AI agents that power personalized, deeply satisfying interactions across voice, chat, email, SMS, and every other channel. We’re building a future where customer experiences are being redefined from support tickets and hold music to faster resolutions, richer conversations, and deeper relationships. We’re proud to be backed by world-class investors who share that vision, including a16z, Accel, Bain Capital Ventures, Coatue, and Index Ventures, along with many others. We’re an in-office company, driven by a shared commitment to excellence and velocity. Our values — Just Get It Done, Invent What Customers Want, Winner’s Mindset, and The Polymath Principle — shape how we work and grow as a team. ## About the Role Decagon is seeking a Solutions Architect – Voice, a technical hire who will define how enterprises deploy Decagon's AI agents into live voice and contact center environments. This role sits at the intersection of pre-sales engineering, telephony architecture, and enterprise contact center strategy. You will act as a trusted advisor to enterprise prospects and customers, guiding them through complex, ambiguous voice deployment conversations—from SIP trunking and call routing to media handling and real-time transcription—ensuring Decagon integrates seamlessly into their existing contact center platforms while meeting latency, reliability, and compliance requirements. As an early hire in this function, you will define best practices for voice deployment solutioning, partner cross-functionally with Sales, Product, and Engineering, and set the standard for how Decagon engages with enterprises running mission-critical contact center operations. You will establish technical credibility with stakeholders across the C-suite, telephony and network teams, contact center operations, and CX leadership. In this role, you will - Partner with Account Executives to discover, qualify, and design voice deployment solutions that address customer telephony constraints and deliver measurable containment and CX outcomes. - Navigate ambiguous conversations about a customer's contact center landscape, translating diverse environments (Genesys Cloud CX & Engage, Amazon Connect, Cisco UCCE/CVP, Google CCAI) into clear integration and deployment strategies for Decagon's voice platform. - Design SIP integration approaches—BYOC trunking, REFER-based transfer, header propagation, and media/streaming paths (Websockets, Audio Connector, External Voice Transfer)—tailored to each customer's topology and security posture. - Diagnose complex, multi-leg call flows down to the packet level, and establish repeatable methods for tracing and resolving SIP and media issues in production. - Establish scalable pre-sales processes, deployment playbooks, and reusable reference architectures to support growth. ## Your background looks something like this - 8–10+ years in customer-facing technical roles (Solutions Architect, Solutions Engineer, Technical Account Manager, Product Manager) with a focus on voice, telephony, or contact center platforms. - Deep fluency in enterprise contact center platforms—Genesys, Amazon Connect, Cisco, or Google CCAI—and the SIP/telephony fundamentals underneath them (trunking, transfer semantics, codecs, SRTP, DTMF). - Hands-on experience with CPaaS infrastructure such as Twilio or Telnyx, including BYOC configuration and programmable voice. - Demonstrated success navigating ambiguous technical conversations with enterprise customers, asking the right discovery questions, and collaborating through uncertainty. - Strong ability to engage diverse stakeholders—from network engineers to CX and contact center leaders—and translate voice requirements into actionable deployment strategies. Even better if you have - 2+ years selling or architecting AI/ML or conversational voice solutions in enterprise environments. - Experience in a high-growth startup where you built pre-sales practices from the ground up. - Hands-on packet-level SIP diagnostics experience (pcap analysis, Wireshark/Scapy) and comfort reading raw signaling. - Familiarity with real-time speech stacks (STT/TTS), call recording and compliance patterns (SIPREC), and multi-leg call correlation. ## Benefits We proudly offer the following benefits for our full-time employees: - Medical, Dental, and Vision benefits for you and your family - Life Insurance and Disability Benefits - Retirement Plan (e.g., 401K, pension) - Parental Leave - Fertility and family building benefits through Carrot - Monthly stipend to support your wellness, lifestyle, and work-life balance - Daily lunches and snacks in the office to keep you at your best - Take what you need vacation policy (subject to local requirements; UK employees receive 25 days of statutory leave) These benefits are described in more detail in Decagon’s policies, may vary by location, and can change at any time according to applicable compensation and benefits plans. ## About Decagon ## Company Overview - **One-liner**: Decagon is an AI customer support platform that enables enterprises to deploy autonomous AI agents for concierge-level customer experiences across voice, chat, email, and other channels. - **Entity Type**: Private (Series B, $481M total funding) - **Headquarters**: San Francisco, California, United States - **Founded**: 2023 - **Founders**: Jesse Zhang (CEO) and Ashwin Sreenivas (CTO) ## Core Business - **Primary industry**: AI-powered customer support software / Enterprise conversational AI - **Target customers**: B2B, mid-market to enterprise (e.g., Avis Budget Group, Chime, Oura Health, 1-800-FLOWERS.COM, Hunter Douglas, Duolingo, Curology, Valon) - **Mission or purpose**: "Build a future where customer experiences are being redefined from support tickets and hold music to faster resolutions, richer conversations, and deeper relationships." ## Products & Services - **[Decagon AI Concierge Platform](https://decagon.ai/)**: Unified omnichannel AI agent handling chat, voice, and email — powered by natural-language Agent Operating Procedures (AOPs) for workflow definition and an analytics suite for continuous optimization. - **[Decagon Voice AI](https://decagon.ai/product/voice)**: Fast, intelligent voice agents built for natural dialog, fully customizable to brand tone, claiming 50%+ deflection on voice and 70% chat+voice resolution. - **[Decagon Chat](https://decagon.ai/product/chat)**: Flexible, personalized chat agent that executes complex workflows reliably, claiming 80% deflection rate and 32% cost reduction. - **[Decagon Email](https://decagon.ai/product/email)**: Always-on, intuitive email agent that resolves issues quickly, reporting 1M+ revenue from fully AI-handled conversations and 3x CSAT increase. - **[Duet Autopilot](https://decagon.ai/)**: Newer product tier (announced 2025) for autonomous, end-to-end handling of customer interactions. ## Market Standing - **Valuation**: ~$4.5B (Series B round led by Coatue Management and Index Ventures, tripling valuation in under six months as of late 2025/early 2026) [jobsbyculture.com](https://jobsbyculture.com/blog/working-at-decagon-2026) - **Total Funding**: USD $481,000,000 across 7 rounds [LinkedIn](https://www.linkedin.com/company/decagon-ai) - Seed (Jun 2024): $5M led by a16z - Series B (Oct 2024): $65M led by Bain Capital Ventures - Venture Round (Nov 2025): undisclosed amount, 1 investor - **Notable Investors/Partners**: Andreessen Horowitz (a16z), Accel, Bain Capital Ventures, Coatue Management, Index Ventures, Elad Gil [jobsbyculture.com](https://jobsbyculture.com/blog/working-at-decagon-2026) - **Growth Signals**: - 311 employees (+325.3% YoY) as of mid-2026 - 100+ enterprise customers - Over 60,000 LinkedIn followers (+274.8% yearly growth) - Active in 7 countries (US, UK, Ireland, Germany, Netherlands, Philippines, Nigeria) - 134 active job postings (+332.3% yearly growth) - Key talent sourced from Verkada, Scale AI, Bain & Company, Glean, Databricks, xAI, Salesforce, TikTok, Five9 ## Competitive Advantages - **Proven enterprise adoption**: Deployed at major brands (Chime, Avis, Oura, Duolingo) with highly publicized results — e.g., Oura reported 95% chat+voice resolution, Curology 80% deflection, and one customer saw "10x higher deflection at launch than anticipated" [decagon.ai](https://decagon.ai/) - **Omnichannel by design**: Unified chat, voice, and email on a single intelligence layer — a rare end-to-end approach vs. point solutions for just chat or voice. - **Natural-language AOPs**: Agent Operating Procedures in plain English, enabling non-engineers to define and iterate on agent workflows without engineering support — faster iteration and less vendor lock-in. - **Elite investor syndicate**: Backed by the top enterprise AI investors (a16z, Accel, Coatue, Index, Bain Capital Ventures), signaling strong confidence and access to a broad network. - **Founding team pedigree**: Founded by former executives/engineers from high-growth AI companies (Jesse Zhang and Ashwin Sreenivas have backgrounds from fast-scaling AI startups). ## Strategic Focus - **Scaling enterprise sales**: Actively hiring Enterprise Account Executives, Implementation Managers, and Strategic Account Directors [LinkedIn](https://www.linkedin.com/company/decagon-ai) - **Deepening voice capabilities**: Staff Research Engineer and Senior Research Engineer for Voice + Speech roles signal heavy investment in voice AI quality and differentiation [LinkedIn](https://www.linkedin.com/company/decagon-ai) - **International expansion**: Established offices in London (UK), plus presence in Ireland, Germany, Netherlands, and Philippines — recruiting across all regions. - **Product velocity**: Emphasis on rapid iteration and continuous improvement of agents; building out analytics suite (Decagon Insights) and Duet Autopilot for fully autonomous operation. ## Why Work Here - **Culture**: Described as "Eng-Driven, Ship Fast, Equity, Product Impact" by employees. Values include: "Just get it done," "Invent what customers want," "Winner's mindset," "The Polymath Principle" (cross-functional collaboration) [decagon.ai/careers](https://decagon.ai/careers) - **Compensation**: "We hire the best and treat them accordingly" — competitive compensation philosophy; Glassdoor rating: 3.9/5.0 (257 reviews), Compensation: 5.0/5.0 in Glassdoor-style internal review [jobsbyculture.com](https://jobsbyculture.com/blog/working-at-decagon-2026) - **Benefits**: - 100% medical, dental, and vision coverage for dependents - 401k and FSA/commuter benefits - Flexible PTO + company-wide winter break shutdown - Free daily lunches, dinner, and snacks at HQ - Wellness programs and company events [decagon.ai/careers](https://decagon.ai/careers) - **Remote/Hybrid/Office**: HQ in San Francisco (2261 Market Street); London office (50 York Way). Roles span remote, hybrid, and on-site options based on job postings. - **Engineering culture**: 89 technical employees (21% of workforce), Staff/Senior Research Engineer roles for Voice + Speech; "Build, optimize, and scale AI agents" is core identity. Alumni go on to OpenAI, Datadog, Postman, Accel — strong talent pipeline. - **Growth trajectory**: 134 open roles; 300+% headcount growth YoY; $4.5B valuation at 3 years old — extremely high-growth environment ideal for career acceleration. - **Notable perk**: "We’re building a future where customer experiences are being redefined from support tickets and hold music to faster resolutions" — employees report high product impact and ownership. ## Sources 1. [decagon.ai](https://decagon.ai/) 2. [decagon.ai/careers](https://decagon.ai/careers) 3. [LinkedIn - Decagon](https://www.linkedin.com/company/decagon-ai) 4. [jobsbyculture.com - Working at Decagon 2026](https://jobsbyculture.com/blog/working-at-decagon-2026) 5. [dealroom.co - Decagon profile](https://dealroom.co/companies/decagon/) ## Other roles at Decagon - [Business Operations, Growth](https://feeny.ai/job/business-operations-growth-decagon-san-francisco-v89cc7zc16tg) — San Francisco, CA - [Agent Deployment Engineer](https://feeny.ai/job/agent-deployment-engineer-decagon-australia-0922rjegd86e) — Australia - [Senior Agent Product Manager](https://feeny.ai/job/senior-agent-product-manager-decagon-london-hpb9gv5v86xh) — London, United Kingdom - [Business Operations, Analytics Engineer](https://feeny.ai/job/business-operations-analytics-engineer-decagon-san-francisco-9wsq6mbs1cx0) — San Francisco, CA - [Senior Agent Product Manager - Spanish Speaking](https://feeny.ai/job/senior-agent-product-manager-spanish-speaking-decagon-new-york-razdngmzm5h6) — New York, NY - [Field Marketing Coordinator](https://feeny.ai/job/field-marketing-coordinator-decagon-new-york-e3by09pf39xa) — New York, NY - [Technical Accounting & Financial Reporting Manager](https://feeny.ai/job/technical-accounting-financial-reporting-manager-decagon-san-francisco-nq0t5qb7e7s5) — San Francisco, CA - [Director of Solutions Engineering, Enterprise East](https://feeny.ai/job/director-of-solutions-engineering-enterprise-east-decagon-new-york-d55y7b8j28jg) — New York, NY - [Engineering Manager, Research](https://feeny.ai/job/engineering-manager-research-decagon-san-francisco-p4c837fyqnby) — San Francisco, CA - [Research Engineer, Audio and Speech](https://feeny.ai/job/research-engineer-audio-and-speech-decagon-san-francisco-b8k43356nm2g) — San Francisco, CA