Software Engineer III, Speech Systems

capacity; United States; On-site; USD 115,000 - 158,000; Full time

Benefits offered by this job

Employer-paid health insurance

Profit Interest Units

Unlimited vacation policy

401(k) with company match

Short-term disability insurance

Group life AD&D insurance

Supportive workplace

Fun team culture

Job summary

capacity is seeking a Software Engineer to develop advanced applications in speech recognition and natural language processing using C++ and Golang. The ideal candidate will have 8+ years of experience, strong Linux skills, and expertise in real-time audio systems.

The role involves leading a small team, working on complex audio processing, and ensuring high performance in cloud-native environments. Benefits include employer-paid health insurance, unlimited vacation, and a 401(k) plan with company match.

Qualifications

• 8+ years of industry experience in software engineering, with a focus on speech or real‑time audio systems.
• Deep proficiency in C/C++ and Golang in production environments.
• Hands-on experience with ASR engines or TTS pipelines.

Responsibilities

• Develop and optimize real‑time audio processing pipelines.
• Lead development efforts within a small team.
• Maintain performance, stability, and efficiency of software.
• Troubleshoot networking issues in production.

Skills

C/C++

Golang

Linux development

ASR engines

Cloud environments (AWS)

Multithreaded programming

Docker

DevOps

Networking (RTP/SIP)

Python

Tools

Kubernetes

Git

RabbitMQ

Redis

Postgres

Confluence

Jira

Job description

Role Overview

We are looking for a Software Engineer to develop advanced speech recognition, speech synthesis, natural language processing, and biometrics applications primarily in C++ and Golang. The role requires strong Linux development skills, the ability to work independently, and experience working on large, cloud-native, real‑time audio systems.

Responsibilities

• Secure Linux and Docker container development.
• Lead development efforts and work effectively with a small team.
• Full lifecycle ownership: requirements gathering, system design, implementation, and deployment.
• Ensure documentation standards for change control processes.
• Work with mixed C/C++ and Golang tasks, migrating from C++ to Golang where appropriate.
• Design, implement and optimize real‑time audio processing pipelines with ASR and TTS integration.
• Troubleshoot networking issues, including RTP/SIP audio transport in production.
• Interface with customer support and QA teams to drive feature identification and bug resolution.
• Maintain and improve performance, stability, and efficiency of the multithreaded and multi‑process suite.
• Design and architect new components, services, ensuring scalability, performance, and reliability.
• Contribute to long‑term technical roadmap and strategic planning.
• Provide technical leadership and mentorship.

Requirements

• 8+ years of industry experience, with at least 2 years on speech or real‑time audio systems.
• Deep proficiency in C/C++ and Golang in production environments.
• Hands‑on experience with ASR engines or TTS pipelines.
• Highly optimized multithreaded multicore coding skills.
• Understanding of DevOps, build automation, and testing.
• Familiarity with Git version control, branching, pull requests, and merging.
• Experience in at least one major cloud environment (e.g., AWS).
• Knowledge of advanced software algorithms.
• Ability to troubleshoot complex interrelated systems.
• Comfortable working across multiple programming languages and technologies.
• Experience with Secure Software Development Lifecycle practices.
• Ability to translate business requirements into detailed designs and implementation plans.

Preferred Qualifications

• Container experience with Kubernetes.
• Direct experience with networking, RTP, SIP/VOIP protocol implementation or debugging in production audio pipelines.
• Familiarity with DSP concepts: sample rates, codecs, voice activity detection, noise suppression.
• Python experience.
• Familiarity with RabbitMQ, Redis, Postgres, Confluence, Jira.

Benefits

• Employer‑paid health insurance for you and eligible dependents.
• Profit Interest Units / incentive compensation.
• Unlimited vacation policy.
• 401(k) with company match.
• Short‑term disability insurance.
• Group life AD&D insurance.
• Supportive, diverse workplace respecting all employees and clients.
• A fun and collaborative team culture.

Salary Range

The expected base salary for the Software Engineer III role is between $115,000 and $158,000; actual salary will be commensurate with a candidate’s experience, skill and location.

We comply with equal opportunity employment practices and encourage diverse applicants.