Senior Android Engineer, Real-Time VRS (Kotlin/NDK)

CaptionCall, LLC; Salt Lake City (UT); On-site; USD 120,000 - 170,000; Full time

Benefits offered by this job

Paid Vacation & Sick Time & Holidays

401k 6% match with immediate vesting

Nationwide Medical Insurance: Medical,

Dental/Orthodontia & Vision

TeleDoc

HSA company match

3 Medical plan options including Low-D

Outstading Learning and Career Dev

Employee Resource Groups

Job summary

CaptionCall, LLC is seeking a Senior Software Engineer to lead the Android VRS project, building scalable, high-quality Android applications for deaf and hard-of-hearing users. You will work primarily in Kotlin with Jetpack Compose and integrate native C/C++ libraries using the Android NDK, JNI, and SWIG.

In this role you will drive technical direction, collaborate with Product, Design, QA, and native teams, and contribute to architecture decisions.

Qualifications

• 6-8 years of professional software engineering experience.
• Significant experience developing native Android applications in a production environment.
• Experience with complex, large-scale, or mission-critical applications.
• Experience collaborating within cross-functional, team-based development environments.

Responsibilities

• Design, develop, and maintain native Android Video Relay Service (VRS) applications using Kotlin and Jetpack Compose.
• Implement features using modern Android architecture patterns (MVI / MVVM, Clean Architecture).
• Integrate and maintain native C/C++ videophone libraries via Android NDK, JNI, and SWIG-generated bindings.
• Develop and support real-time video calling functionality including camera, audio routing, call state management, and lifecycle handling.
• Collaborate across teams working on multiple Android applications sharing a common native engine.
• Contribute to technical design discussions, architecture decisions, and long-term platform strategy.
• Write clean, maintainable, and well-tested code following engineering best practices.
• Partner with QA and Product to ensure functional correctness, performance, and reliability.
• Participate in code reviews, providing constructive feedback and mentoring less-senior engineers.
• Contribute to CI/CD pipelines and release processes using GitHub Actions and Fastlane.
• Monitor application health and stability using observability and analytics tools.
• Troubleshoot complex issues across application, framework, and native layers.
• Participate in Agile/Scrum ceremonies and planning activities.

Skills

Kotlin

Android SDK

Jetpack Compose

MVVM / Clean Architecture

JNI / SWIG / NDK

WebRTC

Education

Bachelor's degree in computer science, software engineering, or a related technical field

Tools

Android Studio

GitHub Actions

Fastlane

Espresso

UIAutomator

Firebase

Sentry

Pendo

Jira

Confluence

Retrofit

OkHttp

Room

DataStore

Job description

CaptionCall, LLC is seeking a Senior Software Engineer to lead the Android VRS project, building scalable, high-quality Android applications for deaf and hard-of-hearing users. You will work primarily in Kotlin with Jetpack Compose and integrate native C/C++ libraries using the Android NDK, JNI, and SWIG.

In this role you will drive technical direction, collaborate with Product, Design, QA, and native teams, and contribute to architecture decisions.