I need a seasoned software engineer who can own the full-stack logic that powers a new mobile product we are releasing for both iOS and Android. The heart of the role is building a reliable, scalable backend and weaving in AI/ML features that make the user experience feel truly smart. Here is what I’m after: • Backend development: Design and implement secure REST or GraphQL APIs, choose the right database strategy, and set up cloud infrastructure that can grow with our user base. • AI/ML expertise: Select or train the models that drive our core features (think recommendation, classification, or predictive insights), wrap them in performant services, and ensure data pipelines are production-ready. • Solid software engineering practice: Write clean, well-tested code, automate deployment (CI/CD), document everything clearly, and collaborate smoothly with the mobile front-end team so the apps on both iOS and Android stay in sync. Acceptance criteria will be straightforward—working endpoints, AI functionality measurable by agreed metrics, thorough tests, and hand-off documentation that lets my team maintain and extend your work without surprises. If this sounds like your wheelhouse, tell me how you’d tackle the build, the tools you’d pick, and a realistic timeline to hit a first usable release.