Predict who will cancel, then spend a retention budget only where an offer changes the outcome: clean label windows, survival models, uplift learners, a budgeted policy and failed-payment recovery, on three one-hour boards.
Machine-learning engineers designing data, training and model systems.
Your approach: Explain the data, learning or model lifecycle in the brief. Support relevant quality and operating targets with evidence.
Design Churn Prediction and Retention. Predict who will cancel, then spend a retention budget only where an offer changes the outcome: clean label windows, survival models, uplift learners, a budgeted policy and failed-payment recovery, on three one-hour boards. Work from the scoping questions below. State assumptions for any unspecified load, guarantee or target, then trace your design end to end. Explain one difficult case and a credible alternative; the worked example is a reference, not a required implementation.
Resolve the scoping questions for Churn Prediction and Retention. Separate stated behavior from assumptions, and identify what is outside your design.
Declare relevant volume, latency, freshness, quality or cost targets with units. Show calculations or an evaluation plan that can test them; unspecified targets are your assumptions, not hidden pass criteria.
Explain how your guarantees hold in a difficult case relevant to this subject. Address: Cancel page? Freshness?
Identify users, required behavior and exclusions. Answer: Goal? Levers?
Define the information owned by the system and the inputs, outputs and errors at its boundaries. Resolve: Budget? Scale?
Estimate the dominant workload and resource demand with units and explicit assumptions. For a learned system, also state how quality is measured and what data is available.
Draw or describe the responsibilities needed for Churn Prediction and Retention. Trace a representative request, event or job from its input to a visible result; identify durable state owners.
Walk through a difficult case step by step, including detection and recovery. Consider: Past campaigns? Horizon? Cancel page? Freshness?
Compare a credible alternative using your chosen workload and guarantees. Explain a remaining risk, a signal to watch and when you would change the design.