← All roles

Forward Deployed Engineer, UKI

Telnyx· Sales
Apply on company site
Hybrid (London)£120k - £180kfull-timePosted 1mo ago

About the role

Embedded with enterprise customers in London to architect and ship production systems on Telnyx's global network, focusing on delivering production outcomes (AI contact center, SOC/NOC agent, global communications, connected mobility, or enterprise inference) rather than demos. Works jointly with an Enterprise AE to own technical discovery, architecture, POC, and production go-live, building real solutions at scale.

Responsibilities

  • Embed with enterprise customers to understand their communications workflows, AI use cases, and integration challenges firsthand
  • Build and deploy custom implementations: AI Voice Assistants, Telnyx APIs (Voice, Messaging, Fax, Wireless), WebRTC
  • Run open-weight LLMs in customer environments or deploy self-hosted stacks behind your own serving engine when required
  • Deploy and operate LiteLLM as the model gateway in customer environments
  • Instrument and govern LLM usage through the gateway—cost tracking, caching, logging/observability, guardrails
  • Wire production observability for everything you ship—metrics, logs, traces, dashboards, alerting
  • Design model routing strategies for real-time voice workloads balancing latency, cost, and quality
  • Make the build-vs-buy case between self-hosted and hosted APIs, keeping code portable
  • Adapt models to customer domains with prompt/RAG pipelines and regulatory considerations (UK GDPR, UK/Irish laws)
  • Lead POCs, pilots, and production launches from whiteboard to go-live
  • Own customer outcomes and stay engaged until solution is live and stable
  • Collaborate with Product and Engineering to shape roadmap from field insights (UK & Ireland)
  • Create clear technical documentation, runbooks, and maintainable solutions for handoff
  • Troubleshoot and resolve complex integration issues with customer teams

Qualifications

  • CS degree or equivalent experience
  • 3+ years building and shipping production software
  • Proficiency in Python, Node.js/TypeScript, Go
  • Understanding of production model challenges: rate limits, timeouts, retries, cost attribution, concurrency failure modes
  • Experience deploying containerized services on Kubernetes with secrets/config management
  • Observability experience (Prometheus+Grafana, OpenTelemetry, Graylog/ELK)
  • High-concurrency experience with Kafka/messaging at scale
  • API design from scratch (OpenAPI, REST/GraphQL, auth, rate limiting, versioning, idempotency)
  • Event-driven/cloud-native mindset
  • Exposure to SIP, WebRTC, or real-time voice/messaging systems
  • Self-sufficient, customer-facing engineering
  • Customer-facing engineering experience with ability to run discovery and present to executives
  • Strong English communication skills
  • Based in London or willing to relocate (hybrid, travel across UK & Ireland)
  • Legally authorized to work in the UK or eligible for sponsorship

Skills

Required:Programming in PythonNode.js/TypeScriptKubernetesObservability toolingAPI designHigh-concurrency & distributed systems
Nice to have:GoWebRTC/SIP

Benefits

  • Travel allowance (implied by hybrid with UK&I travel)
  • Hybrid work arrangement
Last updated Sep 17, 2026. Interested? Apply on the company site.
Telnyx logo

About Telnyx

Telnyx owns the full stack from carrier network to AI inference, so there's nothing between your agent and the person on the other end. No handoffs. No lag. Just voice, messaging, and AI that keeps up.

Carrier-owned global communications platform for voice AI agents, SIP trunking, programmable voice, SMS/MMS, and AI inference. Single vendor for the full voice-AI stack on a Tier-1 network across 40+ countries.

Cloud communicationsGlobal eSIMMessagingPhone number APIPrivate networkProgrammable SMSSIP trunkingVoIP
Company profileWebsite

More open roles at Telnyx