# Customer Success Manager

**Company:** [Phonely](https://zerogtalent.com/ai-companies/phonely)
**Location:** San Francisco, CA, US
**Work mode:** On-site
**Seniority:** Mid
**Employment type:** Full Time
**Salary:** USD 60K–100K/yr
**Category:** Support
**Department:** Support
**Listed:** 2026-11-10

[View and apply on Zero G Talent](https://zerogtalent.com/ai-jobs/phonely/customer-success-manager-76231)

## What you'll do

- Own the entire post-sale journey: onboarding, training, adoption, expansion, renewals.
- Be the voice of the customer and translate feedback into product insights.
- Drive ROI by helping customers get real business value fast.
- Build trusted relationships with champions, operators, and executives.
- Work closely with engineering to file tickets, test fixes, and close loops.

## What you need

- Communicate clearly, confidently, and with empathy under pressure.
- Explain technical concepts to non-technical people and vice versa.
- 2–4+ yrs in CSM, Solutions Engineer, or post-sales/sales at SaaS or AI company.
- Move fast, wear many hats, and work without hand-holding.
- Think proactively and spot at-risk customers early.

## Job description

### **Customer Success Manager @ Phonely**

**San Francisco, CA — On-site, Full Time**

_AI voice is the future. We’re building it. Want in?_

### **About Phonely**

Every day, billions of phone calls are made to businesses. We believe AI will soon handle the majority of them — and businesses will need a way to build, simulate, integrate, and deploy voice AI agents that actually work.

We’re building exactly that. Phonely is a full-stack platform for creating AI voice agents that sound human, scale instantly, and never drop the ball. Think: fine-tuned LLMs, real-time monitoring, Zapier-style workflows, and a telecom infra layer — all in one.

We’re one of the fastest-growing companies in nearly every investor’s portfolio we’re in. Our customers are scaling rapidly, and now we’re looking for a **Customer Success Manager** who thrives in motion, sweats the details, and obsesses over making customers successful.

### **What You’ll Be Doing**

-   **Own the entire post-sale journey** — onboarding, training, adoption, expansion, renewals.
-   **Be the voice of the customer** — translate feedback into product insights and feature improvements.
-   **Drive ROI** — help customers get real business value fast: live agents, lower costs, higher CSAT.
-   **Build trusted relationships** — with champions, operators, and execs. You’ll be their go-to.
-   **Solve real problems** — everything from configuration to integration to strategy.
-   **Push for growth** — spot upsell opportunities and help customers scale their usage you’ll get upsell commission.
-   **Work closely with engineering** — file tickets, test fixes, and close loops directly.

* * *

### **What We Expect In Week One**

-   Learn our entire platform and onboard me in the first 2 days
-   Meet our customers. Shadow support calls. Jump in on real issues.
-   Get hands-on with the product. Simulate, test, and build voice flows yourself.
-   Own onboarding for at least 1–2 new accounts.
-   Identify 3–5 high-priority accounts at risk and build a plan.
-   Show initiative. If something’s broken, fix it or flag it fast.

* * *

### **You’ll Be Great If You…**

-   Communicate clearly, confidently, and with empathy — especially under pressure.
-   Can explain technical concepts to non-technical people (and vice versa).
-   Love startups. You move fast, wear many hats, and don’t need hand-holding.
-   Think proactively — if a customer’s drifting, you spot it early and act.
-   Thrive in chaos. You like solving hard problems for people who are scaling fast.

* * *

### **Bonus Points If You…**

-   Have 2–4+ years in a CSM, Solutions Engineer, or post-sales/ sales role at a SaaS or AI company.
-   Are an ex(or current)-athlete
-   Are a founder
-   Have done something really cool.

* * *

### **Why Join Us**

-   Equity in a rocketship
-   Work directly with the founders
-   On-site in SF (we’ll feed you breakfast, lunch, and dinner)
-   Actual ownership — your ideas will shape how we support customers
-   We’re building the future of voice. It’s early, and it’s moving fast.

* * *

### Interview Process

### **Interview Process**

-   15-min intro call
-   Team interview
-   Short take-home challenge
-   1-week paid trial in SF — meet the team, solve real problems, and see if we click

* * *

**No visa sponsorship. US-based only.**

**Role:** Customer Success

**Job Type:** Full-time

**Experience:** 2+ years preferred

**Location:** San Francisco, CA (on-site only)

**Salary:** $80K–$120K

**Equity:** 0.05%–0.15%

## Other open roles at Phonely

- [Forward Deployed Engineer](https://zerogtalent.com/ai-jobs/phonely/forward-deployed-engineer-121729) — San Francisco, CA, US
- [Founding Account Executive](https://zerogtalent.com/ai-jobs/phonely/founding-account-executive-121728) — San Francisco, CA, US
- [Operations Specialist](https://zerogtalent.com/ai-jobs/phonely/operations-specialist-113101) — San Francisco, CA, US
- [QA Engineer](https://zerogtalent.com/ai-jobs/phonely/qa-engineer-109450) — CA / Remote (CA)
- [Founding Product Manager](https://zerogtalent.com/ai-jobs/phonely/founding-product-manager-109410) — San Francisco, CA, US

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