Firaz Zakariya
Data scientist and analyst based in Sweden. I build models and pipelines that go from messy data to something useful — forecasts, classification systems, analytics infrastructure. I'm looking for DS/DA roles where the work has real consequences.
Experimentation, forecasting, and analytics engineering. Start with microexp →
Projects
microexp
Sequential and Bayesian A/B testing for low-traffic products
A Python package for running rigorous A/B tests when you have hundreds of users per week, not millions. Sequential testing (mSPRT), Bayesian methods, CUPED variance reduction. Born from running experiments on Cawosh, my SaaS side project.
Battery degradation modelling for EVs
Four-model comparison with prognostic evaluation
A reproducible comparison of four model families — statistical baseline, gradient-boosted, LSTM, and physics-informed — for predicting lithium-ion capacity fade under real EV driving profiles. Evaluated with prognostic metrics and cross-dataset generalisation.
Designing metrics for a small SaaS
Metrics design for a small SaaS
Lessons from launching Cawosh: separating revenue from retention, defining engagement, and building dashboards your future self will trust.