---
title: 'Software Engineer, Frontend at Phonic'
canonical: 'https://feeny.ai/job/software-engineer-frontend-phonic-san-francisco-qr3efp3a411g'
type: 'job'
last_seen: '2026-09-10'
---

# Software Engineer, Frontend at Phonic

- **Company:** Phonic
- **Location:** San Francisco, CA
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-03-04
- **Last confirmed live:** 2026-09-10
- **Apply:** https://jobs.ashbyhq.com/phonic/5c03ac8d-4f55-4550-8cda-79cea5bddce4

## Job description

## About Phonic

Phonic is a product and research lab focused on powering the most realistic, human-like voice AI conversations. We've re-thought the entire stack in pursuit of this goal, from models to product, to create voice agents that feel like they truly understand you, respond emotionally and perform agentic tasks with frontier intelligence. Our team includes top-tier AI researchers, international olympiad medalists, and former founders. Our customers include companies that are building voice-native AI products in industries such as customer support, healthcare, and logistics.

## About the Team

Phonic has a very talent-dense and close-knit team. We collaborate with high trust and are constantly trying to improve how we work to deliver world-class research and product. Everyone takes ownership in what they do and they aren’t afraid to dive in headfirst into new problems. We are fully in-person in our San Francisco office.

## The Role

As a Frontend Engineer at Phonic, you'll build the product layer that brings our voice AI to life for customers. From the real-time interfaces that power live voice conversations to the dashboards, APIs, and developer tooling that our customers rely on daily—you'll own the full surface area of what users see and interact with. You'll work in close collaboration with our research and ML teams to translate cutting-edge voice AI capabilities into polished, production-grade product experiences. This is a role for a builder who cares deeply about craft, moves fast, and isn't afraid to take end-to-end ownership of features from design to deployment.

## What You’ll Do

- Own features end-to-end in our TypeScript and Next.js codebase, from ideation to launch, while holding an exceptionally high bar for UX and design quality.
- Build scalable full-stack systems, polished UIs, robust developer-facing APIs, and the SDK layer that ties them together.
- Optimize performance and latency across the entire stack to ensure seamless, real-time user experiences.
- Work closely with research and model engineering to shape how our voice AI capabilities are experienced in the product.
- Contribute to our core architecture, ensuring seamless integration between our UI, SDK, and platform.

## What You’ll Bring

- Proven track record: You've built and shipped beautiful products before and can point to production work you're incredibly proud of.
- Product & Design Intuition: You care deeply about design, animation, and UX. You have strong taste and the confidence to defend it.
- Full-Stack Proficiency: You're comfortable across the full stack: frontend, backend, APIs, and everything in between.
- Execution Mindset: You set direction, own decisions, and get things across the finish line. Shipping is a skill you have mastered.
- Autonomy: You thrive in environments where you can be autonomous, opinionated, and move fast.
- Design Taste: You can look at a workflow, recognize when it's too complicated, find the essence of what actually needs to happen, and go build that.
- Agency: You see a problem, spin up a coding agent, ship a PR, and fix it.
- Multithreading: You can juggle 5-6 projects at once without losing quality or momentum on any of them.

## Nice To Have

- Experience building real-time or streaming applications (WebSockets, WebRTC, audio/media APIs).
- Experience with monorepo setups using Turborepo or similar tooling.
- Experience with modern UI animation libraries (like Motion/Framer Motion) to build fluid, organic interfaces.
- Familiarity with voice, telephony, or conversational AI products.
- You are a former product lead or startup founder.

## Benefits

- 💸 Top-tier compensation: in order to get the best talent, we provide salary and equity that recognize your skillset
- 🥗 Meals: free breakfast, lunch, and dinner provided in the office
- 🩺 Healthcare: Comprehensive health, dental, and vision
- 🤝 We have regular off-sites and team celebrations

## About Phonic

## Company Overview
- **One-liner**: Phonic builds a speech-to-speech voice agent platform for enterprises, powered by proprietary audio foundation models to deliver natural, reliable conversations.
- **Entity Type**: Private (Seed stage)
- **Headquarters**: San Francisco, California, USA
- **Founded**: 2024
- **Founders**: Moin Nadeem, Nikhil Murthy

## Core Business
- **Primary industry/industries**: Voice AI, Enterprise Software, Artificial Intelligence
- **Target customers**: Enterprises deploying voice agents for customer support, operations, and high-trust interactions (B2B)
- **Mission or purpose statement**: “To make talking to voice AIs as simple and reliable as talking to humans.”

## Products & Services
- **[Phonic Platform]**: An end-to-end speech-to-speech platform for building, evaluating, and deploying voice agents. Features include real-time intelligence, observability, searchable interaction records, and containerized deployment within the customer’s environment. Leverages proprietary audio foundation models for low-latency (under 300ms) conversational voices.
- **[Maven Voice]**: An enterprise-grade AI voice agent built on Phonic’s platform, announced in August 2025 for chaotic, noisy, and unpredictable real-world situations.

## Market Standing
- **Valuation/Market Cap**: Not disclosed (private company)
- **Key Metric**: Total funding raised: $4M (Seed round, April 2025)
- **Notable Investors/Partners**:
  - Lead investor: Lux Capital
  - Angel investors include: Clement Delangue (Hugging Face CEO), Erik Bernhardsson (Modal), Michele Catasta, Douwe Kiela, Amjad Masad, Qasar Younis
- **Growth Signals**:
  - Seed round of $4M closed in April 2025 with strong investor backing from AI infrastructure leaders.
  - Employee count grew from founding team to ~18 as of April 2026 (estimated 18 from Tracxn; LinkedIn reported 6 in early 2026 before recent hires).
  - Launched Maven Voice in partnership with Maven AGI in August 2025, demonstrating enterprise traction.
  - Active hiring (engineering, research) indicates scaling phase.

## Competitive Advantages
- **Proprietary audio foundation models** that enable speech-to-speech within 300ms, achieving a natural conversational flow that rivals human interaction.
- **Full observability and evaluation stack** — built right into the platform so enterprises can monitor, debug, and improve agent conversations over time.
- **Secure, containerized deployment** — runs completely in the customer’s environment, addressing enterprise security and compliance requirements.
- **Real-time insights and failure analysis** across millions of agents, providing a system of record for voice interactions.

## Strategic Focus
- Continue building the most reliable speech-to-speech platform for enterprise-grade voice agents.
- Expand use cases beyond customer support into high-trust verticals such as healthcare, finance, and insurance.
- Grow the engineering and research team, particularly researchers experienced in audio modeling and production engineers.

## Why Work Here
- **Culture**: In-person, collaborative team in San Francisco (onsite workspace). The company emphasizes doing meaningful work in a fun environment.
- **Team**: Small, high-caliber team of researchers and engineers from top backgrounds (MIT, Jane Street, Robinhood, Hugging Face). Flat hierarchy with direct impact.
- **Mission**: Opportunity to define how humans interact with voice AI at scale, tackling reliability and naturalness challenges.
- **Perks**: Not publicly detailed, but typical early-stage startup benefits include equity, flexible PTO, and the chance to shape product and culture.
- **Growth**: Rapidly growing after a well‑funded seed round; new hires can expect high ownership and accelerated career development.

## Sources
1. [phonic.co](https://phonic.co/)
2. [phonic.co/company](https://phonic.co/company)
3. [builtin.com](https://builtin.com/company/phonic)
4. [linkedin.com](https://www.linkedin.com/company/phonic-co)
5. [tracxn.com](https://tracxn.com/d/companies/phonic/__4TPVIPNDFpbV6xRNF8_OeUI3ZQMO-qYLkT5bm53BIx0)

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