Software Engineer - Ads Experience (소프트웨어 엔지니어)

About this role

<div class="content-intro"><p><strong>About Moloco:</strong></p> <p>Moloco builds some of the most powerful AI advertising solutions in the world. Our name—short for "machine learning company"—reflects our core mission: democratizing access to the advanced AI that has historically been reserved for tech giants. Led by machine learning pioneers who built some of the most successful ad systems at Google, including YouTube's monetization engine and key search advertising technologies, we're transforming how businesses grow and compete in the digital economy.</p> <p>Built with AI from day one, Moloco’s planet-scale machine learning platform powers a suite of solutions for advertising growth and monetization. <a href="https://www.moloco.com/solutions/moloco-ads"><strong>Moloco Ads</strong></a> is an AI-powered platform that delivers real business outcomes for mobile app marketers through performance-based user acquisition. <a href="https://www.moloco.com/solutions/moloco-commerce-media"><strong>Moloco Commerce Media</strong></a> enables retailers and marketplaces to build revenue-generating ad businesses that balance user experience and advertiser performance.</p> <p>Moloco is headquartered in Silicon Valley, with offices in Seattle, New York, San Francisco, Seoul, Beijing, Singapore, Gurgaon, Tokyo, Shanghai, London, Tel Aviv, and Berlin.</p> <p>Moloco is a truly rewarding place to work and in an exciting period of growth, which you could be a part of. Join us today and apply now!</p></div><h3><strong>About the role</strong></h3> <p class="wnfdntt _1ibi0s3f5 _1ibi0s3ce _1ibi0s3ea" data-pm-slice="1 1 []">As a Software Engineer on the Ads Experience (AdEx) team, you will build and evolve core features, services, and workflows that power Moloco’s web-based campaign management portal, Moloco Ads Manager (our Ads Manager UI). Your work will directly shape how advertisers and internal operators create, configure, monitor, troubleshoot, and understand campaigns, helping them operate more efficiently and confidently on Moloco Ads while driving meaningful user and business impact.</p> <h3><strong>The Opportunity</strong></h3> <ul> <li>Design, implement, and operate backend services and APIs that support key advertiser and operator workflows in Moloco Ads Manager, including campaign setup, configuration, health monitoring, reporting, alerting, and diagnostics.</li> <li>Own features or projects end-to-end, from problem framing and requirements review through technical design, implementation, testing, launch, and post-launch iteration.</li> <li>Partner closely with Product, UX, Data, and ML to turn complex user problems into simple, reliable, and scalable product experiences in the Ads Manager UI and via APIs.</li> <li>Contribute to analytics and reporting capabilities by integrating with data pipelines and helping deliver clear, actionable views of campaign performance and operational health.</li> <li>Improve the reliability, performance, and observability of the systems you build through strong engineering practices, including testing, metrics, logging, monitoring, and incident response.</li> <li>Contribute to raising the team’s engineering bar and support a collaborative culture of technical excellence and continuous improvement.</li> </ul> <h3><strong>Basic Qualifications (2 Titles)</strong></h3> <h4 class="wnfdnth _1ibi0s33y _1ibi0s34u" data-pm-slice="1 1 []">Software Engineer II&nbsp;- Ads Experience</h4> <ul> <li>BS/MS in Computer Science or a related technical field, or equivalent practical experience.</li> <li>4+ years of software engineering experience in backend or full‑stack development.</li> <li>Proficiency in at least one modern programming language such as Java, Go, Kotlin, C++, or Python.</li> <li>Solid understanding of data structures, algorithms, and system design, with hands‑on experience building or maintaining web services / APIs.</li> <li>Experience working with relational or NoSQL databases (e.g., BigQuery, Bigtable, MySQL, PostgreSQL).</li> <li>Experience owning features or components end‑to‑end under guidance from more senior engineers.</li> <li>Ability to collaborate effectively in a cross‑functional environment with Product, UX, Data, and ML partners.</li> <li>Fluent verbal and written communication skills in English; ability to discuss designs, trade‑offs, and timelines with global stakeholders.</li> </ul> <h4 class="wnfdnth _1ibi0s33y _1ibi0s34u" data-pm-slice="1 1 []">Senior Software Engineer&nbsp;- Ads Experience</h4> <ul> <li>BS/MS in Computer Science or a related technical field, or equivalent practical experience.</li> <li>8+ years of software engineering experience, including significant backend or platform work on user‑facing products.</li> <li>Proficiency in one or more modern programming languages such as Java, Go, Kotlin, C++, or Python, and experience building large‑scale distributed systems or high‑throughput services.</li> <li>Strong system design skills, with a track record of leading the design and implementation of complex features or services across multiple components or teams.</li> <li>Deep experience designing and operating web services / APIs and working with relational or NoSQL databases (e.g., BigQuery, Bigtable, MySQL, PostgreSQL).</li> <li>Proven experience acting as a project tech lead: breaking down ambiguous problems, aligning stakeholders, and delivering projects on time with high quality.</li> <li>Demonstrated ability to work effectively with Product, UX, Data, and ML partners, influencing product scope and technical trade‑offs.</li> <li>Fluent in English, capable of driving technical discussions and decisions with global, cross‑functional stakeholders.</li> </ul> <h3><strong>Preferred Qualifications</strong></h3> <ul> <li class="wnfdntd _1ibi0s33w">Experience building advertiser-, operator-, or analyst-facing tools such as campaign managers, analytics dashboards, troubleshooting or alerting tools, billing or capacity management systems, or inte