Sr Mobile App -Software Developer (F/T, US Only)

Job Description

The Media Trust is on a mission to make the digital ecosystem a healthier, more valuable place for businesses, governments and consumers. Working with the world’s largest, most-heavily trafficked digital publishers and their AdTech partners as well as enterprises, the Media Trust delivers real-time security, data protection, performance management and quality assurance solutions that help protect, monetize and optimize the user experience across desktop, smartphone, tablet and gaming devices. The Media Trust is an industry pioneer with 20 years of history continuously monitoring the online and mobile ecosystem.

We are seeking a Senior Mobile App Software Developer with strong full-stack and Ad Tech experience to build and scale advertising-driven products across mobile and web platforms. This role owns user-facing experiences end-to-end—from mobile apps and Web UIs to backend services and ad integrations—while maintaining performance, reliability, and scalability.

You'll be a key technical leader on our product engineering team, architecting solutions that directly impact millions of users while working with cutting-edge advertising technology. Experience with monetization strategy and yield optimization is preferred but not required.

As an organization, we prize engineering professionals who are equipped with great technical skills and attitudes that motivate those around them. We seek individuals who bring a sense of ownership and are passionate about quality. We value individuals who are curious, demonstrate initiative, and love solving problems.

What You'll Do

• Architect and develop end-to-end solutions across mobile apps (Swift, Kotlin, React Native, Flutter), modern Web UIs (React), and backend systems that serve millions of users daily.


• Lead mobile and web UI development, integrating advertising experiences (Google Ad Manager, AdMob, MoPub, AppLovin, ironSource, Unity Ads, Meta Audience Network) that balance exceptional UX, optimal performance, and revenue generation.


• Design and build scalable backend services, APIs, and data pipelines supporting ad delivery, analytics, and reporting while optimizing for low-latency, high-throughput workloads.


• Own full-stack features from requirements through deployment, making architectural decisions around scalability, reliability, and security while building and maintaining CI/CD pipelines and cloud infrastructure.


• Collaborate across teams (product, design, data, monetization) and conduct code reviews to mentor engineers, raise engineering standards, and deliver innovative solutions that drive business outcomes.


• Solve hard problems with creative solutions and have a good time along the way!

Qualifications

• 7+ years of professional software development experience with proven delivery of production mobile and web applications at scale, including strong expertise in mobile front-end development (Swift, Kotlin, React Native, Flutter) and modern Web UI development with React, JavaScript/TypeScript, state management, and performance optimization.


• Required hands-on Ad Tech experience with mobile advertising SDKs, mediation platforms, and ad lifecycle management, plus direct experience with one or more ad platforms such as Google Ad Manager (GAM), AdMob, MoPub, AppLovin, ironSource, Unity Ads, or Meta Audience Network.


• Demonstrated full-stack engineering expertise including backend development (Node.js, Java, Python, Go), API design (REST/GraphQL), databases (SQL and NoSQL such as PostgreSQL, MongoDB), event tracking, analytics pipelines, and microservices architecture.


• Strong system design and cloud platform experience (AWS, GCP, or Azure) with ability to architect scalable, low-latency solutions that handle high volume and large-scale data, plus understanding of Agile development methodologies.


• Bachelor's degree in Computer Science, Engineering, IT or related field (equivalent experience/training will be considered) and excellent communication skills to clearly describe complex technical issues to both technical and non-technical stakeholders.

While the above are core requirements, the follow specialized experience is highly desirable:

• Experience with monetization strategy, yield optimization, or revenue analytics including familiarity with ad performance metrics (eCPM, fill rate, ARPDAU, CTR, viewability) and exposure to programmatic advertising or RTB.


• Infrastructure-as-code experience (Terraform, CloudFormation, AWS CDK) and prior technical leadership or mentorship experience with track record of guiding and developing engineering talent.


• Experience with A/B testing frameworks, web application security (XSS, SQL injection), understanding of malware/malvertising threats, or knowledge of privacy regulations (GDPR, CCPA) and their impact on mobile advertising.

The Media Trust is currently a 100% remote workforce. This role will be 100% remote initially with some expectation for in-person days in our Northern Virginia/Tysons Corner office. All candidates are required to interview once in person before an offer will be made. Due to AI and Candidate Fraud all ATS screening questions are required.

The Media Trust offers a collaborative working environment where growth is encouraged and nurtured. In addition, we offer competitive salaries and a comprehensive benefits package.

The Media Trust provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability, or genetics.

Disclaimer: The above description is intended to describe the general nature of work and level of effort being performed by individuals assigned to this position or job description. This is not to be construed as a complete or exhaustive list of all skills, responsibilities, duties, and/or assignments required. Individuals may be required to perform duties outside of their position, job description, or responsibilities as needed.