Senior Software Engineer

3 days ago


India Checkmate Full time

Checkmate is the leading platform that connects restaurant POS systems with online ordering channels automating workflows and enabling seamless order flow We are now expanding into voice-driven ordering experiences through our Drive Through AI DTAI product line which brings advanced AI and speech technologies to drive-thru lanes and phone ordering systems As a Senior Software Engineer Audio DSP you will play a critical role in shaping the real-time speech processing stack for DTAI This includes developing algorithms and systems that can perform reliably in noisy multi-speaker real-world environments You will work at the intersection of digital signal processing conversational AI and restaurant operations directly influencing technical architecture prototyping and product direction Your contributions will impact how millions of customers interact with AI-powered voice systems in fast-paced restaurant environments Requirements Algorithm Development Optimization Design implement and optimize real-time DSP algorithms for speech enhancement noise reduction echo cancellation and beamforming Improve multi-speaker handling with techniques such as VAD source separation and speaker diarization Contribute to low-latency multi-channel audio pipelines that can scale across thousands of drive-thru and phone channels AI Speech Integration Work closely with ASR LLM research and product teams to integrate DSP with automatic speech 1 recognition and conversational AI models Collaborate on evaluation frameworks for speech quality recognition accuracy and latency leveraging Langfuse-based observability Engineering Product Collaboration Partner with cross-functional teams AI ML infrastructure product hardware to make core architectural decisions Prototype and evaluate new solutions both software-based and hardware-assisted microphones speakers sensors Contribute to DTAI troubleshooting analytics by instrumenting DSP pipelines with rich observability hooks Code Process Quality Write clean maintainable and testable code Actively participate in code reviews debugging sessions and system optimization Drive engineering best practices in scalability security and future-proofing



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