Who we are: SiriusXM and its brands (Pandora, SiriusXM Media, Ads Wizz, Simplecast, and SiriusXM Connect) are leading a new era of audio entertainment and services by delivering the most compelling subscription and ad-supported audio entertainment experience for listeners – in the car, at home, and anywhere on the go with connected devices. Our vision is to shape the future of audio, where everyone can be effortlessly connected to the voices, stories and music they love wherever they are.

This is where a diverse group of emerging talent and legends share authentic and purposeful songs, stories, sounds and insights through some of the best programming and technology in the world. Our critically acclaimed, industry-leading audio entertainment encompasses music, sports, comedy, news, talk, live events, and podcasting. Regardless of their role, each of our employees is vital in bringing SiriusXM’s vision to life daily.

SiriusXM Media is the gateway for marketers to North America's most prominent digital audio advertising ecosystem. As the combined advertising revenue organization of SiriusXM Holdings Inc., SiriusXM Media spans across leading owned and operated audio platforms Pandora and SiriusXM; innovative ad tech solutions powered by Ads Wizz; sonic creative consultancy Studio Resonate; and an extended content network featuring exclusive monetization agreements with Audiochuck, NBC Universal, Sound Cloud, and many more. Reaching more than 150 million listeners each month, SiriusXM Media delivers audiences the tailored brand experiences they crave while putting creators first, making it easy for every marketer to produce, plan, buy and measure across its entire audio universe.

Ads Wizz, a subsidiary of SiriusXM, is the leading global provider of digital audio and podcast advertising solutions. Ads Wizz is the underlying monetization solution for well-known music platforms, podcasts, and broadcasting groups worldwide, giving advertisers of all sizes unprecedented access to premium and niche audio content. Through dynamic ad insertion, advanced programmatic platforms, and innovative audio formats, Ads Wizz efficiently connects buyers and sellers for digital audio and podcast advertising. Ads Wizz is a global company with a presence in over 40 countries and a Technology Development Hub in Bucharest, Romania.

How you’ll make an impact:

As a Senior Software Engineer, you will contribute to the evolution of Ads Wizz’s high-throughput streaming infrastructure that powers global audio and video distribution.

You will work on the AIS streaming server and Managed Service Platform, helping design and deliver robust, scalable, and secure systems deployed in large-scale, high-availability cloud environments.

In this role, you will collaborate with cross-functional and cross-continent teams to ensure our streaming and transcoding capabilities evolve alongside business and product objectives.

What you’ll do: - Core Engineering Responsibilities:

• Contribute to the analysis, design, and implementation of the AIS streaming server and AIS Managed Service Platform (primarily C++, with Go components).

• Design and build high-performance, scalable systems deployed in large-scale, highly available AWS environments.

• Contribute to the architectural evolution of the streaming server, including adoption of modern streaming protocols.

• Help design and implement audio/video transcoding capabilities using state-of-the-art formats and codecs.

• Collaboration & System Ownership

• Participate in architecture discussions and planning sessions with Product and Engineering teams.

• Collaborate closely with Dev/Cloud Operations to ensure reliable production deployments.

• Support incident management efforts and contribute to root cause analysis and long-term system improvements.

• Work effectively within a collaborative development process across multiple engineering teams.

• Participate in technical interviewing activities when needed.

What you’ll need:

• Bachelor’s or Master’s degree in Computer Science, Mathematics, or a related field.

• 5+ years of professional software engineering experience in C/C++ (modern C++ experience preferred).

• Experience designing and building distributed systems deployed in production.

• Strong understanding of software development lifecycle, configuration management, release processes, and system verification/testing.

• Experience identifying and debugging performance bottlenecks in complex systems.

• Ability to independently own and deliver significant features or components.

• Strong analytical and problem-solving skills with attention to detail.

• Ability to collaborate cross-functionally and negotiate design tradeoffs.

• Proven ability to learn and adopt new technologies.

Experience in One or More of the Following Areas:

• Designing and scaling streaming and/or transcoding services.

• Working with cloud platforms (AWS preferred).

• Designing and maintaining public APIs.

• Working with relational databases (MariaDB/MySQL preferred) and/or NoSQL systems.

• Implementing caching solutions (Redis, Memcached).

• Messaging platforms (Kafka, AWS Event Bridge).

• Containerized environments (Docker, Kubernetes).

• Observability tooling (Prometheus, Grafana, ELK).

• Security fundamentals (e.g., OAuth2).

• We consider a plus having good expertise in any of the following areas:

• Experience with Rust.

• Experience with Go or Python.

• Experience with streaming servers (Shoutcast, Icecast, Wowza).

• Knowledge of streaming protocols (HTTP, RTMP, RTSP, HLS, ICY).

• Familiarity with media container formats and codecs (MP3, MP4, H264, AAC, MPEG).

• Experience with transcoding tools (ffmpeg, AWS Elemental).

• AWS services (S3, Lambda, API Gateway, EKS, Kinesis, SQS, etc.).

• Automated integration testing tools (Wiremock, Cucumber, Playwright).

• Experience with advertising protocols (VAST, OpenRTB).

Our offer – what’s in it for you:

• Casual & friendly working environment with opportunities to impact the company with your ideas and involvement

• Technology diversity, interesting technical exposure in building the best ad-tech product on the market

• Corporate annual bonus system to celebrate personal and company wins

• Individual training budget to use as you like for skill improvement

• Sports bonus for activities such as gym, biking, and yoga

• Meal tickets card for enjoyable lunch breaks

• Gift cards for special events and holidays

• Days off for your birthday and special events to recharge and enjoy your BIG moment

• Private medical subscription to keep you healthy

• Private Pension Fund (Pillar III) based on your years of tenure

• Free library subscription for the book lover in you

• Suitable hardware devices (new laptops / Macs, displays etc.)

• Parking lots at office location – 60% co-funded by the company

• Company offsites, CSR activities, and getaways to stay connected and keep the flame alive

Our goal at SiriusXM is to provide and maintain a work environment that fosters mutual respect, professionalism, and cooperation. SiriusXM is an equal opportunity employer that does not discriminate based on actual or perceived race, creed, color, religion, national origin, ancestry, alienage or citizenship status, age, disability or handicap, sex, gender identity, marital status, familial status, veteran status, sexual orientation or any other characteristic protected by applicable federal, state or local laws.

The requirements and duties described above may be modified or waived by the Company in its sole discretion without notice.

R-2025-07-35

Who we are: SiriusXM and its brands (Pandora, SiriusXM Media, Ads Wizz, Simplecast, and SiriusXM Connect) are leading a new era of audio entertainment and services by delivering the most compelling subscription and ad-supported audio entertainment experience for listeners – in the car, at home, and anywhere on the go with connected devices. Our vision is to shape the future of audio, where everyone can be effortlessly connected to the voices, stories and music they love wherever they are.

This is where a diverse group of emerging talent and legends share authentic and purposeful songs, stories, sounds and insights through some of the best programming and technology in the world. Our critically acclaimed, industry-leading audio entertainment encompasses music, sports, comedy, news, talk, live events, and podcasting. Regardless of their role, each of our employees is vital in bringing SiriusXM’s vision to life daily.

SiriusXM Media is the gateway for marketers to North America's most prominent digital audio advertising ecosystem. As the combined advertising revenue organization of SiriusXM Holdings Inc., SiriusXM Media spans across leading owned and operated audio platforms Pandora and SiriusXM; innovative ad tech solutions powered by Ads Wizz; sonic creative consultancy Studio Resonate; and an extended content network featuring exclusive monetization agreements with Audiochuck, NBC Universal, Sound Cloud, and many more. Reaching more than 150 million listeners each month, SiriusXM Media delivers audiences the tailored brand experiences they crave while putting creators first, making it easy for every marketer to produce, plan, buy and measure across its entire audio universe.

Ads Wizz, a subsidiary of SiriusXM, is the leading global provider of digital audio and podcast advertising solutions. Ads Wizz is the underlying monetization solution for well-known music platforms, podcasts, and broadcasting groups worldwide, giving advertisers of all sizes unprecedented access to premium and niche audio content. Through dynamic ad insertion, advanced programmatic platforms, and innovative audio formats, Ads Wizz efficiently connects buyers and sellers for digital audio and podcast advertising. Ads Wizz is a global company with a presence in over 40 countries and a Technology Development Hub in Bucharest, Romania.

How you’ll make an impact:

As a Senior Software Engineer, you will contribute to the evolution of Ads Wizz’s high-throughput streaming infrastructure that powers global audio and video distribution.

You will work on the AIS streaming server and Managed Service Platform, helping design and deliver robust, scalable, and secure systems deployed in large-scale, high-availability cloud environments.

In this role, you will collaborate with cross-functional and cross-continent teams to ensure our streaming and transcoding capabilities evolve alongside business and product objectives.

What you’ll do: - Core Engineering Responsibilities:

• Contribute to the analysis, design, and implementation of the AIS streaming server and AIS Managed Service Platform (primarily C++, with Go components).

• Design and build high-performance, scalable systems deployed in large-scale, highly available AWS environments.

• Contribute to the architectural evolution of the streaming server, including adoption of modern streaming protocols.

• Help design and implement audio/video transcoding capabilities using state-of-the-art formats and codecs.

• Collaboration & System Ownership

• Participate in architecture discussions and planning sessions with Product and Engineering teams.

• Collaborate closely with Dev/Cloud Operations to ensure reliable production deployments.

• Support incident management efforts and contribute to root cause analysis and long-term system improvements.

• Work effectively within a collaborative development process across multiple engineering teams.

• Participate in technical interviewing activities when needed.

What you’ll need:

• Bachelor’s or Master’s degree in Computer Science, Mathematics, or a related field.

• 5+ years of professional software engineering experience in C/C++ (modern C++ experience preferred).

• Experience designing and building distributed systems deployed in production.

• Strong understanding of software development lifecycle, configuration management, release processes, and system verification/testing.

• Experience identifying and debugging performance bottlenecks in complex systems.

• Ability to independently own and deliver significant features or components.

• Strong analytical and problem-solving skills with attention to detail.

• Ability to collaborate cross-functionally and negotiate design tradeoffs.

• Proven ability to learn and adopt new technologies.

Experience in One or More of the Following Areas:

• Designing and scaling streaming and/or transcoding services.

• Working with cloud platforms (AWS preferred).

• Designing and maintaining public APIs.

• Working with relational databases (MariaDB/MySQL preferred) and/or NoSQL systems.

• Implementing caching solutions (Redis, Memcached).

• Messaging platforms (Kafka, AWS Event Bridge).

• Containerized environments (Docker, Kubernetes).

• Observability tooling (Prometheus, Grafana, ELK).

• Security fundamentals (e.g., OAuth2).

• We consider a plus having good expertise in any of the following areas:

• Experience with Rust.

• Experience with Go or Python.

• Experience with streaming servers (Shoutcast, Icecast, Wowza).

• Knowledge of streaming protocols (HTTP, RTMP, RTSP, HLS, ICY).

• Familiarity with media container formats and codecs (MP3, MP4, H264, AAC, MPEG).

• Experience with transcoding tools (ffmpeg, AWS Elemental).

• AWS services (S3, Lambda, API Gateway, EKS, Kinesis, SQS, etc.).

• Automated integration testing tools (Wiremock, Cucumber, Playwright).

• Experience with advertising protocols (VAST, OpenRTB).

Our offer – what’s in it for you:

• Casual & friendly working environment with opportunities to impact the company with your ideas and involvement

• Technology diversity, interesting technical exposure in building the best ad-tech product on the market

• Corporate annual bonus system to celebrate personal and company wins

• Individual training budget to use as you like for skill improvement

• Sports bonus for activities such as gym, biking, and yoga

• Meal tickets card for enjoyable lunch breaks

• Gift cards for special events and holidays

• Days off for your birthday and special events to recharge and enjoy your BIG moment

• Private medical subscription to keep you healthy

• Private Pension Fund (Pillar III) based on your years of tenure

• Free library subscription for the book lover in you

• Suitable hardware devices (new laptops / Macs, displays etc.)

• Parking lots at office location – 60% co-funded by the company

• Company offsites, CSR activities, and getaways to stay connected and keep the flame alive

Our goal at SiriusXM is to provide and maintain a work environment that fosters mutual respect, professionalism, and cooperation. SiriusXM is an equal opportunity employer that does not discriminate based on actual or perceived race, creed, color, religion, national origin, ancestry, alienage or citizenship status, age, disability or handicap, sex, gender identity, marital status, familial status, veteran status, sexual orientation or any other characteristic protected by applicable federal, state or local laws.

The requirements and duties described above may be modified or waived by the Company in its sole discretion without notice.