---
title: 'Senior Product Designer at Cinder'
canonical: 'https://feeny.ai/job/senior-product-designer-cinder-new-york-73f5w202gc5d'
type: 'job'
last_seen: '2026-09-13'
---

# Senior Product Designer at Cinder

- **Company:** Cinder
- **Location:** New York, NY
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-08-24
- **Last confirmed live:** 2026-09-13
- **Apply:** https://jobs.ashbyhq.com/cinder/f682d699-5662-458a-b49e-fdb25c814d74

## Job description

## About Cinder

Cinder is the mission-critical infrastructure that keeps the world's most important digital platforms true to what they stand for. The internet has always been abused by bad actors, and AI is making it exponentially worse, driving fraud, abuse, and manipulation at a scale and speed no human team can fight alone. Cinder gives platforms one command center to fight back: to write and enforce policy, deploy AI agents against abuse in real time, investigate threats, file NCMEC reports, and prove their safety programs are working. Our customers are some of the largest internet platforms in the world. The decisions made in our software directly determine what stays up, what comes down, and how users are treated. We're a small, fast-moving team backed by Accel and Y Combinator. We care about being intentional, direct, and deeply focused on solving real customer problems.

## Why this role

Cinder's product surface is expanding fast: new agent-facing workflows, multiple product lines, and a growing brand and GTM footprint. We're building out design to match, and we're looking for a second senior designer to own significant surfaces end to end. You'll operate as a co-lead and thought partner with our current designer. You'll take full ownership of your own surfaces, shape design direction and craft standards together, and give each other real, two-way critique. We expect you to get fluent in Cinder fast, so you can operate independently and make your own thoughtful decisions on Cinder design. This is a chance to help define how design works at Cinder from an early stage, not just execute inside an existing structure.

## What you'll work on

- Own end-to-end design for assigned surfaces, from framing the problem to shipped UI, working directly with product and engineering.
- Run discovery with product: talk to Trust & Safety customers and users, and turn what you hear into design direction and Linear tickets an engineer can pick up and build from.
- Prototype at high fidelity to pressure-test flows and align engineering before build starts.
- Contribute to and help maintain our design system as the product scales.
- Take on design work beyond core product when it counts. This could include brand, GTM, decks, website, and marketing. We're a small design team, so we're looking for real appetite to proactively own broader design projects, not just tolerate them.
- Sit in critique with our design lead. Give and take direct feedback, and help hold the bar on craft.

## What we're looking for

- Strong visual and graphic design craft: the eye to judge quality, and the ability to produce clean work without leaning on AI tools.
- 6+ years designing software at senior to staff level, with real depth on technical products built for expert users.
- Expert in Figma: wireframing, flows, prototyping, and production-grade delivery.
- Fluent with AI coding agents (Cursor, Claude, Codex) for designing and prototyping, not just experimenting with them.
- A high tolerance for ambiguity. You can create your own clarity and make calls without a finished PRD or research.
- Proactive by default. You flag and fix design debt before anyone asks you to.
- Comfortable talking to customers directly and turning what you hear into product opportunities.
- Strong systems thinker. You see how changes in one part of the product affect the rest
- Experience building or maintaining a design system, including component libraries or patterns.
- Front-end fluency: comfort prototyping in code and picking up interim engineer-designer work.
- Experience designing SaaS, especially multi-product platforms and information-dense interfaces.
- Empathy for the trust & safety problem space.

## Nice to have

- Experience designing for AI or agentic products.
- Motion design skills or a sense for delightful detail.
- Comfort with website CMS builders for brand and marketing support.
- Appetite to help build design team culture and rituals from scratch: crits, standups, lunch-and-learns.
- A design background or lineage different from what's already on the team. We're intentional about building that kind of range.

Location & Benefits We're based in NYC and would relocate the right person for this role. We believe in working together in person and hold at least two all-company events per year. We offer health, vision & dental benefits, a 401(k) plan with employer matching, fully paid commuter benefits, and a fully stocked office with paid lunch and dinner.

## About Cinder

## Company Overview
- **One-liner**: Cinder provides mission-critical trust and safety infrastructure that protects online platforms from AI-powered abuse, fraud, and manipulation.
- **Entity Type**: Private (Series B)
- **Headquarters**: New York City, USA
- **Founded**: 2022
- **Founders**: Glen Wise and Phil Brennan

## Core Business
- **Primary industry**: Trust and Safety, AI Infrastructure, Cybersecurity
- **Target customers**: B2B; platforms of all sizes from startups to enterprises, including frontier AI labs, e-commerce, and social media companies
- **Mission or purpose**: To protect the internet from AI-powered abuse by building infrastructure that outmatches the speed and scale of AI-empowered bad actors.

## Products & Services
- **Cinder Platform**: A single command center for every safety workflow and tool. It centralizes policies, data consolidation, and AI-backed automations to improve alignment and efficiency. Features include real-time detection, context-aware decisions, AI red teaming, quality assurance, and explainability/audit trails.
- **Custom AI Agents**: Configurable agents that enforce standards and policies across millions of decisions, adapting to specific policies and learning continuously from mistakes and successes. They can examine images, conversations, full user profiles, and networks of related entities.
- **Managed Operations**: Expert services for content moderation, case investigation, IP and copyright enforcement, user fraud and account takeover detection, and custom agent development.
- **Data Labeling**: Accurate, AI-ready training data with real-time evaluation and faster turnaround.
- **Applicant Fraud Detection**: Vetting candidates for sensitive roles using the same intelligence applied to abuse detection, integrated directly into an ATS.

## Market Standing
- **Valuation/Market Cap**: Not publicly disclosed
- **Key Metric**: Raised $41M in Series B funding (announced in 2024)
- **Notable Investors/Partners**: Y Combinator (Winter 2022 batch), with Brad Flora as primary partner. Integrates with IWF, Salesforce, StopNCII, and others.
- **Growth Signals**: Processes 400M+ events daily, protects 3B+ end-users, automates 94% of human review, saves 100k+ hours, and achieves >97% AI moderation accuracy. The company is scaling rapidly to combat the surge in AI-generated abuse.

## Competitive Advantages
- **Agentic AI Infrastructure**: Unlike off-the-shelf classifiers, Cinder’s AI agents adapt to specific policies, learn continuously from mistakes and successes, and can examine complex analytical units (images, conversations, full user profiles, networks of related entities).
- **Founder Expertise**: Founders spent years countering terrorism, child exploitation, and nation-state actors at Meta and in government, giving them deep domain expertise.
- **System of Record**: Centralizes policies, review teams, enforcement paths, vendors, and AI systems in one operational surface, with full audit trails and compliance documentation.
- **Enterprise-Grade Security**: SOC2, GDPR, and HIPAA compliant, with role-based permissions, SSO, and encrypted data.

## Products & Services
- **Cinder Platform**: A single command center for every safety workflow and tool. Features include real-time detection, quality assurance, access management, and AI-powered workflow builders. Acts as a system of record for all safety operations.
- **Custom AI Agents**: Configurable agents that enforce standards and policies across millions of decisions. They adapt to specific policies, learn continuously, and can examine complex analytical units (images, conversations, full user profiles, networks).
- **Managed Operations**: Expert services for content moderation, case investigation, IP and copyright enforcement, user fraud and account takeover detection, and custom agent development.
- **Data Labeling**: Accurate, AI-ready training data with real-time evaluation and faster turnaround.
- **Applicant Fraud Detection**: Vetting candidates for sensitive roles using the same intelligence applied to abuse detection, integrated directly into an ATS.

## Market Standing
- **Valuation/Market Cap**: Not publicly disclosed
- **Key Metric**: Raised $41M in Series B funding (announced in 2024)
- **Notable Investors/Partners**: Y Combinator (Winter 2022 batch, primary partner Brad Flora). Integrates with IWF, Salesforce, StopNCII, and others.
- **Growth Signals**: Processes 400M+ events daily, protects 3B+ end-users, automates 94% of human review, saves 100k+ hours, and achieves >97% AI moderation accuracy. The company is scaling rapidly to combat the surge in AI-generated abuse.

## Competitive Advantages
- **Founder Expertise**: Founders spent years countering terrorism, child exploitation, and nation-state actors at Meta and in government, giving them deep domain knowledge and credibility.
- **Agentic AI Infrastructure**: Unlike off-the-shelf classifiers, Cinder’s AI agents adapt to specific policies, learn continuously from mistakes and successes, and can examine complex analytical units (images, conversations, full user profiles, networks).
- **System of Record**: Centralizes policies, review teams, enforcement paths, vendors, and AI systems in one operational surface with full audit trails and compliance documentation.
- **Enterprise-Grade Security**: SOC2, GDPR, and HIPAA compliant, with role-based permissions, SSO, and encrypted data.

## Strategic Focus
- **Scaling AI Agent Capabilities**: Continuously improving AI agents to outmatch the speed and scale of AI-empowered bad actors.
- **Expanding Platform Integration**: Connecting existing models and third-party tools (IWF, Salesforce, StopNCII) to create a unified safety ecosystem.
- **Hiring in NYC**: Focused on building a strong in-person team in New York City, with team members also across the US and UK/EU.

## Why Work Here
- **Mission-Driven Work**: Employees tackle urgent, high-stakes problems like deepfake nudes, child sexual abuse material, AI-generated phishing campaigns, and organized crime. The work is described as "urgent, visible, and high-stakes."
- **Fast-Paced Culture**: The company ships in days, not quarters, and makes decisions with incomplete information. Speed is not optional because adversaries are moving fast with AI.
- **Values**: "Own the Outcome," "Ship Relentlessly," "Mission Over Ego," and "Customer Obsessed." The team is deliberate about building a diverse group with different backgrounds and perspectives.
- **Work Policy**: Hybrid; based in New York City with team members across the US and UK/EU. The company holds at least two all-company gatherings per year and is especially focused on hiring in NYC, with relocation support for the right candidates.
- **Benefits**: Competitive health, vision, and dental coverage; 401(k) with employer matching; paid family leave; flexible paid time off; fully paid commuter benefits; and a fully stocked NYC office with paid lunch and dinner.

## Sources
1. [cinder.ai](https://cinder.ai)
2. [cinder.ai/careers](https://cinder.ai/careers)
3. [cinder.ai/about](https://cinder.ai/about)
4. [jobs.ashbyhq.com/cinder](https://jobs.ashbyhq.com/cinder)
5. [ycombinator.com/companies/cinder-2](https://www.ycombinator.com/companies/cinder-2)

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