Sr. Software Engineer

The Media Trust
McLean, VA

At The Media Trust, we're on a mission to create a safer, healthier digital world for everyone. For over 15 years, we've been the industry pioneer, working with the world's largest digital publishers, AdTech partners, and enterprises to deliver real-time security, data protection, and performance solutions. We're looking for a passionate Senior Software Engineer to join our team and help us combat evolving web-based threats in digital advertising.

What You Get To Do

As a Senior Software Engineer, you'll be at the forefront of developing cutting-edge security solutions that protect billions of digital interactions daily. You'll dive deep into:


  • Building Breakthroughs: Design, develop, and deploy robust, internet-scale, cloud-based software solutions that detect and neutralize web-based threats within digital advertisements.

  • Driving Innovation: Contribute to delivering significant software improvements and feature enhancements, from writing elegant code to performing insightful code reviews and participating in architectural design. You'll also spearhead initiatives to address technical debt and champion best practices.

  • Customer-Centric Development: Gain a deep understanding of our customers and products to continually refine our offerings and ensure seamless integration of our solutions into their environments.

  • Quality First: Embed quality into every step of the development process through thoughtful automated testing and rigorous quality checks.

  • Problem Solving: Tackle complex challenges with creative solutions, making a tangible impact on digital safety and enjoying the process along the way!

Who You Get To Do It With

You'll be joining a team of highly motivated, collaborative engineers who are genuinely passionate about what they build. At The Media Trust, we prize:


  • Technical Excellence: Work alongside peers who are equipped with exceptional technical skills and foster a culture of continuous learning.

  • Ownership & Quality: Be part of an organization that values engineers who take true ownership of their work and are deeply committed to delivering high-quality, impactful software.

  • Curiosity & Initiative: Surround yourself with curious, proactive individuals who love solving tough problems and actively drive innovation.

  • Mentorship: Have opportunities to mentor and guide other engineers, sharing your knowledge and helping the team grow.

  • Agile Collaboration: Thrive in an Agile Scrum environment where enthusiastic participation, clear communication, knowledge sharing, and teamwork are key to our collective success.

Why This Is A Terrific Opportunity

This isn't just another engineering job; it's a chance to make a real-world impact in the fight for a healthier, more secure digital ecosystem.


  • Meaningful Work: Contribute directly to protecting consumers, businesses, and governments from malicious digital content, ad fraud, malware, and privacy risks. Your code will directly safeguard revenue streams and brand value for global leaders.

  • Cutting-Edge Technology: Work with an internet-scale, cloud-based platform utilizing modern technologies like JavaScript, Node.js, serverless architectures (AWS S3/Lambda/Kinesis/Athena), and high-volume data platforms.

  • Growth & Influence: As a Senior Engineer, your contributions will directly influence product direction, engineering best practices, and the growth of your teammates.

  • Industry Leadership: Join an industry pioneer with a proven track record, continuously monitoring the online and mobile ecosystem for over 15 years.

  • Collaborative Culture: Be part of a company that values great attitudes, curiosity, initiative, and a commitment to quality.

Required Qualifications:


  • 10+ years of experience developing software applications at scale.

  • 5+ years experience with web technologies such as JavaScript, Node.js, CSS, and relevant frameworks.

  • Experience developing and architecting scalable applications with large datasets.

  • Experience developing applications with AWS services like Lambdas, Kinesis, S3, Athena, RDS, and other cloud technologies.

  • Experience developing web applications using one or more of PHP, Python, React, or VueJS.

  • Experience developing backend web services and APIs with Java/Spring or Python.

  • Proficient with databases like PostgreSQL and MongoDB.

  • Understanding of browser technologies and how profiles, cookies, and local storage work.

  • Understanding of Agile development methodologies and industry standard practices and tools.

  • Excellent written and verbal communication skills – able to clearly and succinctly describe complex issues.

  • Bachelor's degree in Computer Science, Engineering, IT, or a related field (equivalent experience/training will be considered).

Highly Desirable Specialized Experience:


  • Experience in the digital advertising space (SSP, DSP, ad server, or audience data products).

  • In-depth knowledge of the inner workings of web pages, DOM manipulation, iFrame sandboxing, browsers, website rendering, and AJAX-enabled UIs.

  • Experience with web application security (Cross-site scripting, SQL injection, etc.), malware/malvertising, and/or data breach vulnerabilities such as JavaScript injection, CSS injection, web skimming, Magecart, formjacking, etc.

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. While this role is initially remote -we are looking for candidates within a commutable distance to our McLean, VA offices and willing to come in as needed.

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.

Posted 2025-08-20

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