Who We Are: SiriusXM and its brands (Pandora, SiriusXM Media, Ads Wizz, Simplecast, and SiriusXM Connect) areleading a new era of audio entertainment and services by delivering the most compelling subscriptionand ad-supported audio entertainment experience for listeners – in the car, at home, and anywhere onthe go with connected devices.

Our vision is to shape the future of audio, where everyone can beeffortlessly 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, purposeful songs,stories, sounds, and insights through some of the best programming and technology in the world.

Ourcritically 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 to bringing SiriusXM’s vision to life every day. SiriusXM Media is the gateway for marketers to North America's most prominent digital audioadvertising 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 anextended content network featuring exclusive monetization agreements with Audiochuck, NBCUniversal, Sound Cloud, and many more.

Reaching more than 150 million listeners each month,SiriusXM Media delivers tailored brand experiences audiences crave while putting creators first, makingit easy for every marketer to produce, plan, buy, and measure across its entire audio universe.

About Ads Wizz:

Ads Wizz, a subsidiary of SiriusXM, is the leading global provider of digital audio and podcast advertisingsolutions.

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 premiumand niche audio content.

Through dynamic ad insertion, advanced programmatic platforms, andinnovative audio formats, Ads Wizz efficiently connects buyers and sellers for digital audio and podcastadvertising.

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: We are seeking a talented, driven Senior Software Engineer (independent contractor role)to help our Adswizz Engineering organization.

Duration of the contract: until end of 2026,with opportunity to renew it for 2027.As a Senior Staff Software Engineer (consultant), you will join a highly performing-team of engineers who build, own, and maintain backend services and products.

• You will design, collaborate, and executethe build of Ads Wizz products at scale while automating and providing insights into data onboardingwith the SXM Media and Ads Wizz services. What you’ll do:
• Design and build high-performance, stable, and scalable Ads Wizz systems for deployment in anenterprise setting.
• Lead high-level architecture discussions and planning sessions.
• Work with various engineering teams building software in a collaborative development process.
• Execute tasks with utmost clarity and precision, demonstrating strong ownership and providingclear direction to drive projects forward effectively.
• Serve as a mentor, foster a collaborative environment and encourage and guide team members bybeing honest and direct.
• Collaborate with the Product team to clarify project scope.
• Collaborate with the Global Operations teams to ensure flawless production deployments andsupport the Incident Management team. What you’ll need:
• Bachelor’s or Master’s Degree in Computer Science/Mathematics or a similar field
• Strong understanding of engineering software processes, lifecycle methodology, configurationmanagement, release management, and system verification and testing.
• Ability to work independently and oversee entire projects or significant parts, focusing oncompleting the tasks on time.
• Proven ability to research and become proficient in new technologies

Experience: identifying and debugging performance bottlenecks

• Good understanding of RESTful API design principles, API security standards, and best practicesin API versioning and management

• Strong analytical and problem-solving skills, with meticulous attention to detail and a dedication tocontinuous improvement.

• Proficiency in constructing detailed software architecture diagrams

• Interpersonal skills and ability to interact and work with staff at all levels.

• 10+ years of software engineering experience in Java programming language (preferablylatest version of JDK)

• 5+ years of experience crafting microservices and scalable products, utilizing diverse cloudplatforms, ideally AWS.

• Proficient in implementing industry best practices and design patternstailored for microservices-driven applications.

• Strong technical expertise in the following areas:

• REST API-based microservices using Spring Boot and/or Dropwizard

• Strong knowledge of the Hibernate framework

• Designing and maintaining Public APIs

• Reactive programming (Rx Java, Webflux)

• Relational Databases (preferably MariaDB or MySQL)

• NoSQL databases knowledge (preferably MongoDB)

• Caching implementations (like Redis, Memcached, etc)

• Messaging platforms (preferably Kafka, Amazon SQS, AWS Event Bus)

• Security basics (e.g., OAuth2 standard)

• Working with containers (Docker, Kubernetes)

• AWS Cloud Services, e.g., S3, Lambda, API Gateway, ElasticCache, CloudTrail, Athena,Kinesis, SQS, EKS, Cognito, etc.

• Automated integration testing frameworks and tools, like Wiremock, Cucumber and Playwright.

• Observability tools like Prometheus, Grafana, ELK stack

• Collaboration tools like Miro (or Lucidchart), Jira and Confluence What’s in it for you:

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

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

• Working with the latest versions of programming languages, frameworks and tools 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 discriminatebased on actual or perceived race, creed, color, religion, national origin, ancestry, alienage orcitizenship 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 orlocal laws.

The requirements and duties described above may be modified or waived by the Company in its solediscretion without notice. 2026-17287
Who We Are: SiriusXM and its brands (Pandora, SiriusXM Media, Ads Wizz, Simplecast, and SiriusXM Connect) areleading a new era of audio entertainment and services by delivering the most compelling subscriptionand ad-supported audio entertainment experience for listeners – in the car, at home, and anywhere onthe go with connected devices.

Our vision is to shape the future of audio, where everyone can beeffortlessly 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, purposeful songs,stories, sounds, and insights through some of the best programming and technology in the world.

Ourcritically 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 to bringing SiriusXM’s vision to life every day. SiriusXM Media is the gateway for marketers to North America's most prominent digital audioadvertising 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 anextended content network featuring exclusive monetization agreements with Audiochuck, NBCUniversal, Sound Cloud, and many more.

Reaching more than 150 million listeners each month,SiriusXM Media delivers tailored brand experiences audiences crave while putting creators first, makingit easy for every marketer to produce, plan, buy, and measure across its entire audio universe.

About Ads Wizz:

Ads Wizz, a subsidiary of SiriusXM, is the leading global provider of digital audio and podcast advertisingsolutions.

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 premiumand niche audio content.

Through dynamic ad insertion, advanced programmatic platforms, andinnovative audio formats, Ads Wizz efficiently connects buyers and sellers for digital audio and podcastadvertising.

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: We are seeking a talented, driven Senior Software Engineer (independent contractor role)to help our Adswizz Engineering organization.

Duration of the contract: until end of 2026,with opportunity to renew it for 2027.As a Senior Staff Software Engineer (consultant), you will join a highly performing-team of engineers who build, own, and maintain backend services and products.

• You will design, collaborate, and executethe build of Ads Wizz products at scale while automating and providing insights into data onboardingwith the SXM Media and Ads Wizz services. What you’ll do:
• Design and build high-performance, stable, and scalable Ads Wizz systems for deployment in anenterprise setting.
• Lead high-level architecture discussions and planning sessions.
• Work with various engineering teams building software in a collaborative development process.
• Execute tasks with utmost clarity and precision, demonstrating strong ownership and providingclear direction to drive projects forward effectively.
• Serve as a mentor, foster a collaborative environment and encourage and guide team members bybeing honest and direct.
• Collaborate with the Product team to clarify project scope.
• Collaborate with the Global Operations teams to ensure flawless production deployments andsupport the Incident Management team. What you’ll need:
• Bachelor’s or Master’s Degree in Computer Science/Mathematics or a similar field
• Strong understanding of engineering software processes, lifecycle methodology, configurationmanagement, release management, and system verification and testing.
• Ability to work independently and oversee entire projects or significant parts, focusing oncompleting the tasks on time.
• Proven ability to research and become proficient in new technologies

Experience: identifying and debugging performance bottlenecks

• Good understanding of RESTful API design principles, API security standards, and best practicesin API versioning and management

• Strong analytical and problem-solving skills, with meticulous attention to detail and a dedication tocontinuous improvement.

• Proficiency in constructing detailed software architecture diagrams

• Interpersonal skills and ability to interact and work with staff at all levels.

• 10+ years of software engineering experience in Java programming language (preferablylatest version of JDK)

• 5+ years of experience crafting microservices and scalable products, utilizing diverse cloudplatforms, ideally AWS.

• Proficient in implementing industry best practices and design patternstailored for microservices-driven applications.

• Strong technical expertise in the following areas:

• REST API-based microservices using Spring Boot and/or Dropwizard

• Strong knowledge of the Hibernate framework

• Designing and maintaining Public APIs

• Reactive programming (Rx Java, Webflux)

• Relational Databases (preferably MariaDB or MySQL)

• NoSQL databases knowledge (preferably MongoDB)

• Caching implementations (like Redis, Memcached, etc)

• Messaging platforms (preferably Kafka, Amazon SQS, AWS Event Bus)

• Security basics (e.g., OAuth2 standard)

• Working with containers (Docker, Kubernetes)

• AWS Cloud Services, e.g., S3, Lambda, API Gateway, ElasticCache, CloudTrail, Athena,Kinesis, SQS, EKS, Cognito, etc.

• Automated integration testing frameworks and tools, like Wiremock, Cucumber and Playwright.

• Observability tools like Prometheus, Grafana, ELK stack

• Collaboration tools like Miro (or Lucidchart), Jira and Confluence What’s in it for you:

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

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

• Working with the latest versions of programming languages, frameworks and tools 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 discriminatebased on actual or perceived race, creed, color, religion, national origin, ancestry, alienage orcitizenship 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 orlocal laws.

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