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Senior Software Engineer (Audio & DSP) - US

Checkmate
Washington, DC Full Time
POSTED ON 10/7/2025
AVAILABLE BEFORE 11/5/2025
This position specializes in audio and digital signal processing for voice AI, and you will be instrumental in establishing the foundation for real-time audio processing and advanced conversational capabilities, particularly tailored to the restaurant industry.

You will design and evaluate algorithms to enhance speech and audio performance in our products. Working closely with product and engineering teams, you will develop and assess new solutions, devising innovative ways to integrate them. Additionally, you will prototype and research various software/hardware solutions involving audio, speech, speakers, and sensors for phone and drive-through interfaces.

100% remote

Salary range $140,000 - $220,000

Essential Job Functions

  • Algorithm Development: Create, design, and troubleshoot real-time audio algorithms.
  • Collaborative Engineering: Work within a multidisciplinary team to make essential architectural decisions for efficient software delivery.
  • Software Creation: Develop software for various consumer devices with real-time audio inputs and outputs.
  • Code Quality: Write clean, readable code, efficiently debug complex issues, and prioritize tasks to maintain high productivity.
  • Continuous Learning: Engage in ongoing learning, explore new technologies, and stay updated on the latest audio and digital signal processing advancements.
  • AI/ML Integration: Utilize AI/ML techniques for speech enhancement.
  • Prototyping: Rapidly prototype new software and hardware solutions to contribute to product ideation and development.

Requirements

  • Master’s or PHD or multiple years of industry experience in computer science or engineering.
  • Experience evaluating speech quality/recognition and building scalable systems for real-time audio input/output across multiple concurrent channels.
  • Good understanding of voice activity detection (VAD), beamforming, source separation, and speaker diarization/separation.
  • Interest in prototyping hardware solutions ranging from hobby to professional levels, and a strong sense of future-proofing regarding hardware decisions.
  • Good problem-solving skills and ability to work independently and in a team.
  • Understanding of conversational English and experience with voice programs/products.
  • Strong communication skills for explaining technical ideas to various audiences.
  • Ability to manage product specifications from concept to production.
  • Extensive experience ordering food at fast food and quick service restaurants.

Benefits

  • Health Care Plan (Medical, Dental & Vision)
  • Retirement Plan (401k)
  • Life Insurance (Basic, Voluntary & AD&D)
  • Flexible Paid Time Off
  • Family Leave (Maternity, Paternity)
  • Short Term & Long Term Disability
  • Training & Development
  • Work From Home
  • Stock Option Plan

Salary : $140,000 - $220,000

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