Celara

SENIOR C++ PLAYBACK ENGINEER (AVM - C++ - 20251105)
---------------------------------------------------

Remote

Celara /

Contract /

Remote

[Apply for this job](https://jobs.lever.co/celaralabs/4f6341de-a7cc-42e4-a4c2-7bce897e3e73/apply)

The SENIOR C++ PLAYBACK ENGINEER will design and develop a native C++ player using

GStreamer which provides encrypted playback on 1 or more Smart TV, Set Top Box, or

Gaming Console platforms.

### Responsibilities:

*   Build and maintain C++ based Streaming Video Players to run on Smart TV, Set Top Box, or Gaming Console platforms.
*   Build video player plugins using GStreamer
*   Research and evaluate potential technical solutions
*   Make design decisions on video player architecture
*   Enable Microsoft PlayReady, Google Widevine DRM protection for video player plugins
*   Optimize video playback performance, time-to-first-frame (TTFF)
*   Maintain technical documentation
*   Work and collaborate in teams with engineers, testers, product managers, etc.
*   Work in an Agile, iterative development process
*   Committing to deliver timely results

### Qualifications:

*   7 years of experience in C/C++ programming
*   Experience in low level native TV platform application development (NDK) such as Roku/FireTV/tvOS/WebTV
*   Experience with projects that target high refresh rate performance
*   Familiarity with open source multimedia projects like ffmpeg, Gstreamer, and WebRTC
*   Experience building a streaming video player (in C++ preferred)
*   Strong experience in video streaming protocols such as HLS, Low-Latency HLS, MPEG DASH, CMAF, RTP, RTMP, Timed Metadata (ID3)
*   Familiarity with technologies for developing on Smart TVs, Set Top Boxes, and Gaming Consoles such as Samsung Tizen, Vizio, Hisense, XBOX, PlayStation or others
*   Knowledge of MultiLingual Text Tracks for Closed Captioning and SubTitle Formats such as WebVTT
*   Knowledge of MultiLingual Audio and Audio Description Tracks
*   Strong experience with DRM protection schemes such as MPEG Common Encryption, FairPlay, Widevine, PlayReady.
*   Basic understanding of VOD and linear video workflows using ingest, transmuxing, encoding, SSAI, packaging, and playout.
*   Basic understanding of streaming media in a multi-CDN environment.
*   Strong experience with adaptive bit rate (ABR) ladder algorithms.
*   REST API usage and development.
*   Basic understanding of modern video codecs like HEVC, [H.265K](http://H.265K), [H.264](http://H.264), VP8, VP9, AV1
*   Knowledge of Dolby Vision and HDR
*   Strong experience with Agile/Scrum methodologies.
*   Understand how to write clean and testable code
*   Able to work on a large scope project from start to finish
*   Be capable of being an owner of a specific component or feature
*   Familiar with Jira, Confluence tools and communicate tasking estimation and progress regularly to a project manager, Scrum Master
*   Unity is nice to have

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

[Apply for this job](https://jobs.lever.co/celaralabs/4f6341de-a7cc-42e4-a4c2-7bce897e3e73/apply)

Project management

Agile

Scrum

Algorithm

Web Development

Unity

Mobile App Development

Research

Project documentation

Jira

Support

Data

Gstreamer

Video streaming

HLSL

WebRTC

FFmpeg

RESTful API

Video Encoding

Confluence

SENIOR C++ PLAYBACK ENGINEER (AVM - C++ - 20251105)