Senior Software Engineer, Infrastructure

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.

The Infrastructure team builds and operates the foundations that power Decagon: networking, data, ML serving, developer platform, and real‑time voice. We partner closely with product, data, and ML to deliver high‑scale, low‑latency systems with clear SLOs and great developer ergonomics.

We organize around five focus areas:

• Design and implement critical infrastructure services with strong SLOs, clear runbooks, and actionable telemetry.

• Partner with research and product teams to architect solutions, set up prototypes, evaluate performance, and scale new features.

• Tune service latencies: optimize networking paths, apply smart caching/queuing, and tune CPU/memory/I/O for tight p95/p99s.

• Evolve CI/CD, golden paths, and self‑service tooling to improve developer velocity and safety.

• Support various deployment architectures for customers with robust observability and upgrade paths.

• Lead infrastructure‑as‑code (Terraform) and GitOps practices; reduce drift with reusable modules and policy‑as‑code.

• Participate in on‑call and drive down toil through automation and elimination of recurring issues.

We proudly offer the following benefits for our full-time employees:

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  Take what you need vacation policy (subject to local requirements; UK employees receive 25 days of statutory leave)

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  Medical, Dental, and Vision benefits for you and your family

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  Life Insurance and Disability Benefits

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  Retirement Plan (e.g., 401K, pension)

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  Parental Leave

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  Fertility and family building benefits through Carrot

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  Daily lunches and snacks in the office to keep you at your best

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.