Who We Are:
SiriusXM and its brands (Pandora, SiriusXM Media, AdsWizz, 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, 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 to bringing
SiriusXM’s vision to life every day.
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 AdsWizz; sonic creative consultancy Studio Resonate; and an
extended content network featuring exclusive monetization agreements with Audiochuck, NBC
Universal, SoundCloud, and many more. Reaching more than 150 million listeners each month,
SiriusXM Media delivers tailored brand experiences audiences crave while putting creators first, making
it easy for every marketer to produce, plan, buy, and measure across its entire audio universe.
About AdsWizz
AdsWizz, a subsidiary of SiriusXM, is the leading global provider of digital audio and podcast advertising
solutions. AdsWizz 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, AdsWizz efficiently connects buyers and sellers for digital audio and podcast
advertising. AdsWizz 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 execute
the build of AdsWizz products at scale while automating and providing insights into data onboarding
with the SXM Media and AdsWizz services.
What you’ll do:
● Design and build high-performance, stable, and scalable AdsWizz systems for deployment in an
enterprise 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 providing
clear direction to drive projects forward effectively.
● Serve as a mentor, foster a collaborative environment and encourage and guide team members by
being honest and direct.
● Collaborate with the Product team to clarify project scope.
● Collaborate with the Global Operations teams to ensure flawless production deployments and
support 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, configuration
management, release management, and system verification and testing.
● Ability to work independently and oversee entire projects or significant parts, focusing on
completing 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 practices
in API versioning and management
● Strong analytical and problem-solving skills, with meticulous attention to detail and a dedication to
continuous 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 (preferably
latest version of JDK)
● 5+ years of experience crafting microservices and scalable products, utilizing diverse cloud
platforms, ideally AWS. Proficient in implementing industry best practices and design patterns
tailored for microservices-driven applications.
● Strong technical expertise in the following areas:
○ REST API-based microservices using SpringBoot and/or Dropwizard
○ Strong knowledge of the Hibernate framework
○ Designing and maintaining Public APIs
○ Reactive programming (RxJava, 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 EventBus)
○ 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 ideas
and involvement
● Technology diversity, interesting technical exposure in building the best ad-tech product on the
market
● 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 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-2026-17-287
