Audio Annotation Analyst

OpenKrill; United States; On-site; USD 42,000 - 65,000; Full time

Benefits offered by this job

Unlimited PTO

RSUs for all employees

Remote-first environment

Regular team on-sites and events

Generous health and welfare plans

HSA employer contribution

Vision and dental plans

Paid parental leave

Diaper delivery for new addition

Job summary

Pindrop is seeking an Audio Annotation Analyst to support the Research team by reviewing and annotating audio recordings, video content, and related interaction data to enhance fraud detection and deepfake technologies.

You will produce precise annotations, follow project guidelines, and collaborate with Research Scientists to address edge cases while ensuring data privacy and security. This remote-first role blends focused work with occasional on-site collaboration.

Qualifications

• Excellent listening and observational skills.
• Ability to perform high-volume, repetitive annotation and review tasks.
• Follow detailed guidelines and document observations clearly.
• Experience with spreadsheets for organizing, categorizing, and reviewing data.
• Strong written communication and the ability to work independently in a remote environment.

Responsibilities

• Review and annotate audio recordings, video content, and associated interaction data, assigning accurate labels based on project-specific guidelines and classification criteria.
• Apply established classification criteria to identify potential fraud indicators, authentication outcomes, and characteristics of human-generated vs. synthetic content.
• Maintain high-quality datasets by reviewing existing labels for discrepancies and ensuring consistent labeling across projects.
• Flag difficult-to-classify interactions and document observations, collaborating with Research Scientists to resolve edge cases.
• Support investigations by reviewing interactions to identify issues such as background noise or IVR process gaps.
• Summarize findings and recurring patterns to support model improvements and research analysis.
• Handle sensitive data responsibly, following privacy and confidentiality guidelines.

Skills

Active listening

Attention to detail

High-volume annotation

Guideline compliance

Spreadsheet proficiency

Written communication

Independent work

Curiosity about fraud

Tools

Excel/Google Sheets

Job description

Who We Are

Pindrop is a cybersecurity company delivering continuous identity verification across voice, video, and digital interactions. Powered by the Pindrop Intelligence Network, our unified trust platform helps enterprises answer three critical questions:

Is this identity synthetic? Detect AI-generated and manipulated voice and video.Is this identity risky? Identify fraud, suspicious behavior, and other risk signals.Is this identity known? Authenticate identities using voice, device, behavioral, and other signals.

Pindrop brings this intelligence together across purpose-built trust engines to help organizations make informed decisions in real time — protecting customers, workforce interactions, and emerging AI-driven interactions.

Pindrop protects billions of high-risk interactions for enterprises, including leading financial institutions, insurers, and healthcare organizations. Its technology is informed by more than 8 billion real-world interactions annually and protected by 300+ patents.

Recognized by TIME as one of the 10 Most Influential Software Companies of 2026 and by Inc. for Best in Business for Innovation, Pindrop is backed by leading investors including Andreessen Horowitz, IVP, and CapitalG.

What you’ll do

As an Audio Annotation Analyst on the Research team, you will review and annotate audio recordings, video content, and associated interaction data to support the development, evaluation, and improvement of Pindrop's fraud detection, authentication, and deepfake detection technologies. Your assignments will span audio and video annotation projects based on evolving Research priorities and team needs.

Your primary responsibility will be to produce accurate, consistent, and high-quality annotations across a variety of Research projects. You will also support targeted investigations by reviewing interactions, identifying anomalies, and documenting observations that help Research Scientists better understand model performance and real-world customer interactions.

You will…

• - Review and annotate audio recordings, video content, and associated interaction data, assigning accurate labels based on project-specific guidelines and classification criteria.
• - Apply established classification criteria to identify potential fraud indicators, authentication outcomes, characteristics of human-generated versus synthetic content, and other attributes relevant to Research projects, including intent recognition when applicable.
• - Apply annotation guidelines consistently across large datasets, review existing labels for discrepancies, and help maintain high-quality datasets for model development and evaluation.
• - Flag interactions that are difficult to classify or fall outside established guidelines, document observations, and collaborate with Research Scientists to resolve edge cases.
• - Support Research investigations by reviewing audio and video interactions to identify potential issues such as background noise, audio quality degradation, IVR process gaps, or unexpected model behavior.
• - Conduct targeted interaction and metadata reviews to support customer inquiries, model evaluations, and evolving Research priorities.
• - Maintain accurate annotation records and summarize findings, recurring patterns, and classification inconsistencies to support Research analysis and model improvements.
• - Handle sensitive audio, video, and interaction data responsibly, following established privacy, security, and confidentiality guidelines.

Who you are

You are…

• - Exceptionally attentive to detail, with strong listening and observational skills to identify subtle differences in audio, video, and interactions.
• - Comfortable with focused, repetitive review work and able to maintain accuracy and consistency across large volumes of data.
• - Able to follow detailed guidelines while exercising sound judgment when encountering ambiguous or unfamiliar situations.
• - Organized, self-driven, and able to document classification decisions and observations clearly while managing assigned workloads.
• - Curious about new technologies, forms of fraud, and synthetic or manipulated media.
• - Adaptable and comfortable transitioning between audio and video annotation projects, learning new tools, and applying different classification standards as Research priorities evolve.

Your skill-set

Must have…

• - Excellent listening and observational skills, strong attention to detail, and the ability to apply defined annotation and classification guidelines accurately to audio and video content.
• - Ability to perform high-volume, repetitive annotation and review tasks while maintaining quality and consistency.
• - Ability to recognize inconsistencies and ambiguous cases, document findings clearly, and elevate questions appropriately.
• - Familiarity with spreadsheets (Excel, Google Sheets) or comparable tools for organizing, categorizing, and reviewing data.
• - Clear written communication skills and the ability to work independently, manage priorities, and meet timelines in a remote environment.

Nice to have…

• - Experience with data annotation, audio or video labeling, transcription, quality assurance, or qualitative data review.
• - Familiarity with fraud detection, authentication, voice biometrics, trust and safety, or contact center and IVR workflows.
• - Understanding of synthetic speech, replay attacks, deepfakes, or machine learning labeling tasks such as intent recognition or speech analysis.
• - Experience with annotation platforms, structured review tools, or basic data-querying concepts such as SQL

What’s in it for you

At Pindrop, Research sits at the intersection of AI, voice, fraud, identity, and customer experience. This is an opportunity to work with real-world interaction data and contribute directly to the development and evaluation of technologies that protect enterprises and their customers from increasingly sophisticated fraud and identity threats.

Your annotations and analytical findings will help Research teams build more reliable datasets, evaluate model performance, identify emerging attack patterns, and continuously improve Pindrop's technologies.

You'll have the opportunity to…

• - Develop firsthand knowledge of voice intelligence, fraud prevention, authentication, and deepfake detection.
• - Support high-quality datasets that improve machine learning models and research methods.
• - Review audio, video, and interaction data across different customer environments, use cases, and projects.
• - Partner with Research Scientists and other stakeholders to connect annotation findings to model reliability, product decisions, and better customer experiences.
• - Develop critical thinking, data analysis, written communication and problem-solving skills while gaining exposure to emerging technologies.

What we offer

As a part of Pindrop, you’ll have a direct impact on our growing list of products and the future of security in the voice-driven economy. We hire great people and take care of them. Here’s a snapshot of the benefits we offer:

• - Unlimited Paid Time Off (PTO)
• - Competitive compensation package, including RSUs (Restricted Stock Units) for all employees, so everyone shares in our long-term success.
• - Remote-first environment - giving you flexibility and autonomy in how you structure your day.
• - While we work flexibly, we prioritize meaningful in-person moments through regular team on-sites, company-wide events, and intentional gatherings that foster connection, collaboration, and shared success.
• - Generous health and welfare plans to choose from - including one employer-paid “employee-only” plan!
• - Best-in-class Health Savings Account (HSA employer contribution
• - Low-cost vision and dental plans for you and your family, providing comprehensive coverage and peace of mind.
• - Paid Parental Leave - Including birth, adoptive & foster parents
• - One year of diaper delivery for your newest addition to the family! It’s our way of welcoming new Pindro