Senior Solutions Engineer, In-App

The Opportunity

Kargo is looking for a Senior Solutions Engineer to own the technical success of publishers integrating and scaling our in-app SDK. You'll be the technical face of Kargo to app developers and publishers—the person who gets the SDK integrated cleanly, keeps impressions growing, and clears every engineering roadblock between a signed partner and live, revenue-generating ad traffic. This is a hands-on, publisher-facing role at the intersection of engineering, product, and revenue.

The Daily To-Do

• Onboard and take live strategic publishers, moving each from signed to first impression to full-scale rollout ahead of target integration timelines
• Own flagship publisher integrations end to end, from technical scoping through production launch and post-launch monetization tuning
• Diagnose and resolve the top roadblocks capping in-app impression growth—mediation/bidding misconfiguration, low fill, latency, rendering failures—to drive measurable lifts in live impressions and fill
• Architect placement, format, and bidding strategies that raise eCPM/ARPDAU and sustain performance as publisher traffic scales without degradation
• Establish integration patterns, sample apps, and QA checklists that become team standards and raise the bar for how cleanly publishers go live
• Partner with Sales, Account Management, Product, and Engineering to translate publisher needs into technical solutions
• Feed integration friction back into the SDK roadmap so recurring problems get solved at the source

Qualifications

• Expert-level proficiency in a production language such as Python, Java, Go, or JavaScript/TypeScript, with a strong grasp of data structures, algorithms, and software design patterns
• Experience building RESTful APIs and microservices, and designing scalable, distributed systems that handle high-volume traffic
• Understanding of database design and optimization across SQL and NoSQL, plus cloud infrastructure (AWS, GCP, or Azure) and containerization (Docker, Kubernetes)
• Proficiency with Git, CI/CD pipelines, automated testing, and monitoring/observability tooling, with the ability to debug production issues and optimize system performance
• Strong ownership and technical judgment—you see projects through, make pragmatic engineering decisions, and address technical debt strategically
• Excellent communication skills, able to explain complex technical concepts clearly to non-technical stakeholders and share knowledge generously
• Resilience and a bias for action, staying effective under pressure and breaking large problems into incremental, shippable deliverables