Quality Assurance Engineer (L3)

NYC HQ or Remote (U.S.) | Full-time | Engineering | Reports to: Quality Assurance Lead

Who we are.

Reality Defender is an award-winning cybersecurity company helping enterprises and governments detect deepfakes and AI-generated media. Utilizing a patented multi-model approach, Reality Defender is robust against the bleeding edge of generative platforms producing video, audio, imagery, and text media. Reality Defender's API-first deepfake detection platform empowers teams and developers alike to identify fraud, disinformation campaigns, and harmful deepfakes in real time.

Backed by world class investors including DCVC, Illuminate Financial, Y Combinator, Booz Allen Hamilton, IBM, Accenture, Rackhouse, and Argon VC, Reality Defender works with leading enterprise clients, financial institutions, and governments in order to ensure AI-generated media is not used for malicious purposes.

Youtube: Reality Defender Wins RSA Most Innovative Startup

The Quality Assurance Engineer Role.

Our customers rely on Reality Defender to make high-stakes calls in real time — whether the voice on a bank's phone line or the face in a job interview is real. As a Quality Assurance Engineer, you'll make sure what we ship holds up to that standard, testing our APIs, SDKs, web app, and real-time integrations, and building the automation that lets us release faster without breaking things. This is a full-time role based at our NYC headquarters or remote within the U.S., reporting to Quality Assurance Lead. Responsibilities include:

• Own test planning and execution for assigned product areas — APIs, SDKs, the web app, and real-time voice and video integrations — from requirements review through release sign-off.

• Build and maintain automated test suites (API, end-to-end, and regression) and integrate them into our CI/CD pipelines.

• Find, document, and track defects with clear reproduction steps, severity, and impact, and work with engineers through to resolution.

• Test the reliability and performance of real-time detection under realistic conditions — latency, load, varied audio and video quality, and different platforms and devices.

• Help maintain the test data and media sets used to validate each release.

• Partner with the AI Research and Red Team to support model release validation and regression testing.

• Help Customer Support and Solutions Engineering reproduce and triage customer-reported issues.

• Contribute to QA standards, documentation, and release checklists across the engineering team.

Who you are.

• 3+ years of experience in software QA or quality engineering, testing web applications and APIs in a fast-moving release environment.

• Hands-on experience writing automated tests in Python, JavaScript/TypeScript, or similar, using frameworks such as Pytest, Playwright, Cypress, or Selenium.

• Experience testing REST APIs (e.g., Postman or code-based API tests) and working within CI/CD pipelines (e.g., GitHub Actions).

• Strong attention to detail and a systematic approach to finding edge cases — you think about how things break, not just whether they work.

• Clear written communication: your bug reports and test plans are easy for engineers to act on.

• Experience testing audio, video, or real-time communication products (WebRTC, telephony, conferencing). (nice to have)

• Experience testing ML-powered products or working with test datasets. (nice to have)

• Exposure to performance or load testing tools (e.g., k6, Locust, JMeter). (nice to have)

Within 12 months, you'll…

• Own QA for multiple product areas with minimal oversight.

• Have helped establish quality metrics (escaped defects, coverage, release stability) that the team tracks and acts on.

• Be improving QA tooling and practices beyond your own areas.

• Be ready to take on broader scope and mentor newer QA team members.

What we offer.

Reality Defender offers the following benefits to all our employees, regardless of location:

• Healthcare plans with 100% premium coverage for employees and partial coverage available for dependents

• Dental and Vision plans with 100% premium coverage for employees and their dependents

• Short/Long-term disability and life insurance plans with 100% premium coverage for employees

• FSA/HSA and 401k programs

• Equity compensation

• 20 days of PTO per year

• 12 weeks of Parental Leave

• Learning and Development budget

• Monthly wellness benefits

• Annual company-sponsored offsite

For employees working from Reality Defender's HQ in NYC, we offer the following benefits:

• Daily in-office lunch through UberEats

• Commuter benefits

• Remote Fridays

• Happy Hours and other local events

Base salary range: $120k-$150k, based on experience and location. Includes equity.