Collection & Instrumentation
Capturing data at the source: events, logs, devices and external data.
Backend Engineer track
Junior
Write correct code, ship small changes safely, ask good questions.
- Event Naming ConventionsConsistent names like order_completed so events are findable and comparable.
- InstrumentationAdding code that records what users and systems do, so the data exists at all.
Mid-level
Own a feature end to end without hand-holding.
- Analytics Event TrackingRecording user actions for later analysis.
- Client-Side vs Server-Side TrackingRecording events in the browser or app vs on your servers, and what each misses.
- Consent at CollectionOnly collecting what users agreed to, and recording that they agreed.
- Tracking PlanA shared spec of which events to track, their names and their properties.
- User-Generated ContentPosts, reviews, uploads and messages as a data source.
- Web ScrapingExtracting data from websites, and its legal and reliability limits.
Senior
Own a system, its failure modes, and its trade-offs.
- Telemetry PipelineThe path from emitted logs, metrics and events to where they're stored and queried.
Staff
Shape how many teams build, across systems.
Nothing here yet.
Principal
Set technical direction for the organization.
Nothing here yet.
Data Analyst track
Junior
Write correct SQL, build trusted dashboards, ask good questions.
Nothing here yet.
Mid-level
Own an analysis end to end, from vague question to recommendation.
- Bot and Test Traffic FilteringKeeping crawlers, monitoring checks and internal users out of the numbers.
- Consent at CollectionOnly collecting what users agreed to, and recording that they agreed.
- Customer Data Platform (CDP)Tools like Segment that collect events once and route them to many destinations.
- Event Naming ConventionsConsistent names like order_completed so events are findable and comparable.
- External and Third-Party DataData you buy, scrape or pull from partners, and the contracts and quality risks it brings.
- Identity ResolutionStitching anonymous visitors, devices and accounts into one person.
- InstrumentationAdding code that records what users and systems do, so the data exists at all.
- SessionizationGrouping events into sessions by user and inactivity gaps.
- Tracking PlanA shared spec of which events to track, their names and their properties.
Senior
Own experimentation and metrics design; call out bad numbers.
Nothing here yet.
Staff
Shape how the organization measures and decides.
Nothing here yet.
Principal
Set measurement strategy across the company.
Nothing here yet.
Data Engineer track
Junior
Build and fix pipelines from clear specs; write correct SQL.
- Analytics Event TrackingRecording user actions for later analysis.
- Event Naming ConventionsConsistent names like order_completed so events are findable and comparable.
- InstrumentationAdding code that records what users and systems do, so the data exists at all.
Mid-level
Own pipelines and models end to end, including their quality.
- Bot and Test Traffic FilteringKeeping crawlers, monitoring checks and internal users out of the numbers.
- Client-Side vs Server-Side TrackingRecording events in the browser or app vs on your servers, and what each misses.
- Consent at CollectionOnly collecting what users agreed to, and recording that they agreed.
- Customer Data Platform (CDP)Tools like Segment that collect events once and route them to many destinations.
- External and Third-Party DataData you buy, scrape or pull from partners, and the contracts and quality risks it brings.
- SessionizationGrouping events into sessions by user and inactivity gaps.
- Tracking PlanA shared spec of which events to track, their names and their properties.
- User-Generated ContentPosts, reviews, uploads and messages as a data source.
- Web ScrapingExtracting data from websites, and its legal and reliability limits.
Senior
Design the platform's storage, processing and modeling choices.
- Identity ResolutionStitching anonymous visitors, devices and accounts into one person.
- IoT and Sensor DataHigh-frequency readings from devices, with gaps, clock drift and duplicates.
- Telemetry PipelineThe path from emitted logs, metrics and events to where they're stored and queried.
Staff
Shape how the whole organization produces and uses data.
Nothing here yet.
Principal
Set data strategy and architecture across the company.
Nothing here yet.
Frontend Engineer track
Junior
Build UI that works, ship small changes safely, ask good questions.
Nothing here yet.
Mid-level
Own a feature end to end without hand-holding.
- Analytics Event TrackingRecording user actions for later analysis.
Senior
Own an app's architecture, performance, and failure modes.
Nothing here yet.
Staff
Shape how many teams build, across apps.
Nothing here yet.
Principal
Set technical direction for the organization.
Nothing here yet.