Watchdog V2: from a red metric to a morning decision
How I built a diagnostic layer that turns pricing anomalies into scoped evidence, business exposure and a better first investigation.
READ ARTICLE · 5 MIN →FIELD NOTES / PRODUCTION SYSTEMS
Writing
Technical case studies from systems that had to survive outside a notebook.DECISION BOUNDARY / PLAYGROUND
Teach a little model.
Pick a class. Place a point. Watch its world change.
6/60 points
Making this website: a résumé, a retro operating system and the space between
How I designed and built this portfolio as three views of the same person, and what broke while turning a visual idea into a usable, maintainable website.
READ ARTICLE · 11 MIN →
Goa pricing: replacing a weekly file ritual with a 30-minute system
How I automated Goa base fare with multi-source inputs, hierarchical fallbacks, common publication and a narrow emergency path.
READ ARTICLE · 12 MIN →
Nemo API: taking uncached p99 latency from 150 ms to 17 ms
How connection ownership, a read-oriented schema and a query shaped around the endpoint turned Nemo into a much faster service without adding a cache.
READ ARTICLE · 11 MIN →
AIB-Tanisha: asking for app reviews without manipulating trust
A policy-aware voice system designed to correct review-selection bias while respecting ambiguity, complaints and the customer's right to say no.
READ ARTICLE · 13 MIN →
Pricing release: moving base fare from model group to car variant
How I moved to variant-level acquisition cost without allowing the real Zoomcar fleet mix to create an accidental platform-wide price drop.
READ ARTICLE · 10 MIN →
Pricing release: designing limited and unlimited kilometre packages
How booking-distance distributions and elasticity scenarios became packages that balanced conversion, cancellations, GBV and host wear.
READ ARTICLE · 12 MIN →
Pricing release: adding an auditable asset-level multiplier
How I added granular per-car control while keeping business decision logic separate from a safe, auditable execution layer.
READ ARTICLE · 8 MIN →
DS-Nemo: a review summarisation system
A log of the review-summarisation problem and how I tackled it.
READ ARTICLE · 10 MIN →
Osiris: my best failure in classical machine learning
More than 100 modelling runs produced a strong booking-intent ranker—and experiments revealed that we had optimised the question the requester asked, not the decision the business actually needed.
READ ARTICLE · 18 MIN →
Pixel: evaluating generative image enhancement for a marketplace
From exploratory image edits to an end-to-end generation, quality-gating and delivery pipeline designed to improve presentation without changing the car.
READ ARTICLE · 14 MIN →
Cipher: evidence-grounded automation for support decisions
A clear account of the decision problem, evidence pipeline, human adjudication, selective automation evaluation and duplicate-safe execution behind an LLM-assisted support system.
READ ARTICLE · 13 MIN →
Watchdog: building a stateful pricing anomaly evaluator
A plain-language and technical guide to detecting unusual daily movement in conversion, GBV and pricing without confusing seasonality or broken data for a business problem.
READ ARTICLE · 12 MIN →
Pigeon: standardising analytical email as an operational system
How I replaced scattered one-off mailers with a gated, previewable reporting layer that makes analytical state understandable.
READ ARTICLE · 10 MIN →
Pricing: operating a multi-layer marketplace pricing system
How base fares, duration products, dynamic multipliers, host recommendations, asset controls and change management fit into one production ecosystem.
READ ARTICLE · 16 MIN →
DS-Alerts: one reliability language for data science and data engineering
How execution health, infrastructure failures, dependency access and database integrity became one central, routed alerting service across DS–DE.
READ ARTICLE · 12 MIN →