Senior Software Engineer

We are seeking a Senior Software Engineer to design and build complex, large-scale applications and distributed systems that collect, process, transform, and distribute high volumes of data for analysis. You may also develop components for PCs and mobile devices that capture user behavioral data using advanced engineering and reverse-engineering techniques. In this senior role, you will help lead product development initiatives, influence technical direction, design scalable and high-quality solutions, and serve as a technical advisor to other teams.

Key Activities:

• Own and maintain critical areas of a large, established Windows C/C++ codebase .
• Modernize legacy code using C++17/20 , RAII, smart pointers, STL, and safer resource-management practices.
• Identify and prioritize technical debt, architectural risks, obsolete dependencies, and maintainability issues .
• Refactor tightly coupled or complex components while preserving existing behavior and compatibility.
• Diagnose crashes, memory corruption, leaks, deadlocks, race conditions, and performance problems using Visual Studio, WinDbg, and Windows diagnostic tools .
• Improve automated testing, static analysis, logging, and CI/CD practices for existing components.
• Manage compiler, SDK, library, and third-party dependency upgrades.
• Establish and promote modern C++ coding, architecture, and code-review standards.
• Mentor engineers working in complex or unfamiliar areas of the codebase.
• Partner with engineering leadership to balance feature development, modernization, reliability, and technical-debt reduction .

Additional Relevant Experience

• Google Test or similar C++ testing frameworks
• Jenkins, Azure DevOps, or GitHub Actions
• Modernization of long-lived, production-critical Windows applications

• 7+ years of professional C/C++ software development experience.
• Demonstrated experience refactoring and modernizing large legacy C++ codebases .
• Strong knowledge of modern C++, including RAII, smart pointers, STL, concurrency, object lifetime, and resource management.
• Strong knowledge of Win32 APIs, Windows processes/threads, DLLs, synchronization, IPC, services, and file I/O .
• Experience developing and debugging with ATL, COM
• Windows crash-dump and performance analysis
• Experience debugging complex native-code issues with Visual Studio and WinDbg .
• 1-2 years experience managing projects
• Strong analytical bend, able dive into the data, analyze large data sets; recognize patterns
• Ability to influence and impact others
• Ability to manage own time effectively
• High levels of responsibility, strong, organizational skills, proactive
• Ability to train and mentor others
• Strong Communication skills
• Salary: $170-$195k, commensurate with experience
• Hybrid work schedule that supports both collaboration and focused work time

Please note that we are unable to provide employment visa sponsorship for this position, now or in the future. Candidates must be authorized to work in the United States without current or future sponsorship.

At Comscore, we’re pioneering the future of cross-platform media measurement, arming organizations with the insights they need to make decisions with confidence. Central to this aim are our people who work together to simplify the complex on behalf of our clients & partners. Though our roles and skills are varied, we’re united by our commitment to five underlying values: Integrity, Velocity, Accountability, Teamwork, and Servant Leadership. If you’re motivated by big challenges and interested in helping some of the largest and most important media properties and brands navigate the future of media, we’d love to hear from you.

Comscore (NASDAQ: SCOR) is a trusted partner for planning, transacting and evaluating media across platforms. With a data footprint that combines digital, linear TV, over-the-top and theatrical viewership intelligence with advanced audience insights, Comscore allows media buyers and sellers to quantify their multiscreen behavior and make business decisions with confidence. A proven leader in measuring digital and set-top box audiences and advertising at scale, Comscore is the industry’s emerging, third-party source for reliable and comprehensive cross-platform measurement. To learn more about Comscore, please visit Comscore.com.