Hire Data Scientist — Models That Predict, Not Just Describe
When you hire a data scientist, you should get someone who tests hypotheses against real data — not another dashboard builder. I build forecasting and churn models with scikit-learn and XGBoost, design experiments that isolate lift, and guard against data leakage that makes offline metrics lie — then ship each model behind a monitored API.
View Data Analyst CV ↗ PDF Word
I'm Omer Muneer Qazi, a Dubai-based Fractional CTO & Solutions Architect with 15+ years of experience and 100+ projects delivered across 6 countries. I work inside your team, ship the model myself, and hand over clean, documented code — see also hire data analyst for reporting, or contact me.
Data science that reaches production
Production ML models
scikit-learn and XGBoost models packaged behind versioned REST APIs, with input validation, logging, and rollback — built to survive real traffic, not just score well in a notebook.
Demand & revenue forecasting
Time-series forecasts with honest backtesting against holdout windows, seasonality and holiday effects modeled explicitly, so finance can plan inventory and cash flow on numbers that hold up.
Experiment design & A/B testing
Power analysis, randomization units, and guardrail metrics defined before launch, so every test returns a trustworthy read on lift instead of a p-hacked argument between teams.
Churn & lifetime value scoring
Customer-level churn and LTV models refreshed on a schedule, with SHAP-style explanations your CRM team can act on — retention offers targeted at the accounts most likely to leave.
Leakage-safe feature pipelines
Training pipelines where features are computed strictly as-of the prediction point, with automated leakage checks — the most common reason models look brilliant offline and fail in production.
Monitoring & retraining loops
Drift detection on inputs and predictions, alerting when performance degrades, and scheduled retraining — so your model stays accurate as customer behavior shifts steadily over time.
From raw data to deployed predictions
A structured engagement with no surprises — you’ll always know what’s happening and what’s next.
Data audit
I inspect your tables, labels, and event tracking to find gaps, bias, and leakage risks before any modeling starts — a week of audit saves months of rework.
Baseline model
A simple, interpretable baseline ships first, so we know exactly how much value the complex model adds — complexity must earn its place with measurable lift.
Validation & experiments
Models are validated on true holdouts and, where possible, live experiments — offline metrics alone never decide what goes to production.
Deploy & handover
The model deploys behind an API with monitoring, runbooks, and documented code — your team owns it confidently from day one after I step back.
Why hire through a Fractional CTO
Most data science work dies in notebooks: strong scores that never reach production because nobody owned deployment or monitoring. As a Fractional CTO, I scope models against a metric from day one and stay accountable until predictions are live and measured — the rigor behind $25M+ in client revenue enabled.
You get senior judgment without a full-time salary: ex-teams at Phaedra Solutions, Integriti, and Napollo, 15+ years across 6 countries, and handover documentation your engineers can actually maintain.
Data scientist FAQs
What’s the difference between a data scientist and a data analyst?
A data analyst explains what happened using SQL and dashboards; a data scientist predicts what happens next with statistical models and machine learning. Need forecasts or churn prediction? Hire the scientist. Need reporting? Hire the analyst.
How long until a model is in production?
A first baseline ships in 3-4 weeks; a validated production model takes 8-12 weeks depending on data quality. The week-one audit sets the honest timeline — messy event tracking is the usual bottleneck.
Can you guarantee a model’s accuracy?
No honest practitioner can guarantee accuracy before seeing your data. What I guarantee is rigorous validation: true holdouts, leakage checks, and live experiments — so you know exactly how the model performs before it touches decisions.
What data do you need to start?
Labeled historical data or clear event tracking is the minimum — without it, we start with an instrumentation sprint. A one-week audit tells us whether you’re ready to model or need tracking fixed first.
Will our team be able to maintain the model?
Yes — handover includes documented pipelines, retraining runbooks, and monitoring dashboards your engineers already understand. I also train your team on the model during the engagement, so nothing depends on me afterward.
Hire a data scientist who ships
Tell me what you want predicted — churn, demand, risk — and I’ll scope a production-ready model with an honest timeline. Based in Dubai, working worldwide.
Related ways to work with Omer
Not quite the right fit? These closely related engagements solve adjacent problems — browse a few before you reach out.
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