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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Engineer - Experiment Platform - **Company:** Moloco, Inc. - **Location:** Seattle, WA, United States - **Experience:** Expert - **Salary:** $188,000.0 - $235,000.0 - **Contract:** Permanent contract - **Skills:** A/B Testing, Artificial Intelligence, Data Analysis, Code Review, Computer Engineering, Data Infrastructure, Data Systems, Distributed Systems, Mobile Application Software, Machine Learning, Software Engineering, Backend, Information Technology, Virtual Agents, Data Pipelines - **Published:** October 27, 2026 - **Apply:** https://www.careerbuilder.com/job-details/senior-software-engineer-experiment-platform-seattle-wa--e51c2717-3918-4bd4-aab1-a8e9f7facf3c ## About the Role Software Engineering, Machine Learning, Advertising, Artificial Intelligence (AI), Mobile Applications, Retail, Mobile Marketing, Problem Solving Skills, Product/Service Launch, Analysis Skills, * 5+ years of professional software engineering experience in a production environment. * Strong hands-on experience in backend systems, data infrastructure, distributed systems, or other relevant platform areas. * Proven ability to independently drive technical projects from problem definition through production rollout in ambiguous problem spaces. * Strong engineering judgment in system design, operational reliability, maintainability, and cross-functional execution. * Bachelor's degree in Computer Science, Computer Engineering, or equivalent practical experience. Preferred Qualifications: * Experience designing and implementing experimentation platforms, A/B testing systems, feature flagging systems, or dynamic configuration platforms. * Experience owning platform or infrastructure systems used by multiple engineering teams. * Experience working with analytical data systems, metrics pipelines, or data quality and correctness challenges. * Familiarity with advertising, mobile product ecosystems, or performance-driven product environments. ## Description The Ads Platform, Experiment team owns Moloco's company-wide experimentation infrastructure. We build the systems that help teams roll out changes safely, measure impact rigorously, and make better product and business decisions with confidence. Our scope spans experiment lifecycle management, dynamic configuration and feature flag delivery, and the data pipelines and statistical tooling that power experiment analysis. We work at the intersection of backend infrastructure, data systems, and internal product development, partnering closely with engineers, data scientists, and statisticians. About the Role: As a Senior Software Engineer on the Experiment Platform team, you will lead the design and evolution of high-leverage systems that shape how Moloco runs experiments across products. You will own important technical areas end-to-end, drive sound engineering decisions in ambiguous problem spaces, and build platforms that improve the speed, safety, and trustworthiness of experimentation company-wide. This role is well-suited for engineers who combine strong execution with technical judgment, enjoy working across backend and data system boundaries, and want to raise the quality bar for an internal platform used by many teams. Responsibilities: * Lead the design and implementation of major components across experiment management services, configuration delivery systems, and analysis pipelines. * Own technical decisions for platform areas that require balancing correctness, reliability, performance, and ease of adoption. * Improve the trustworthiness of experimentation by strengthening system design, observability, data quality, and operational standards. * Partner closely with engineers, data scientists, statisticians, and stakeholders to turn ambiguous requirements into scalable platform capabilities. * Mentor other engineers through design discussions, code reviews, and pragmatic technical leadership., * Lead with Humility: Everyone's voice is respected, valued, and heard. We win, lose, and learn together. Accountability and feedback are essential to our success. * Uncapped Growth Mindset: We see all situations as opportunities to learn, grow, and improve as individuals and as an organization. We seek diverse perspectives, encourage curiosity, and promote experimentation to push the boundaries of what's possible. * Create Real Value: We pursue the most impactful opportunities with intensity and rigor. We take intelligent risks and make disciplined trade-offs to maintain deep focus. We help our customers win by delivering durable value. * Go Further Together: We're one team working towards one vision. We collaborate proactively and inclusively, involving the right people at the right time and in the right way. We strive to create a more equitable workplace. We won't let each other fail. Additional Resources: * Moloco Company Blog * Moloco Leadership * Moloco Newsroom AI Use in Interviews Our interview process is designed to get to know the real you. Unless a round specifically includes AI as part of what's being assessed, we ask that candidates engage without AI assistance. Please review our AI Use in Interviews Policy before your interview to understand what to expect. Failure to comply with this policy may impact your candidacy.