Portfolio Projects/Ingestion Mini-Pipeline
₹99data engineer · Core Skillbeginner · ~6 Hours

Ingestion Mini-Pipeline

Pull a paginated REST API into Parquet and upsert it into warehouse staging with watermark-based incremental loads. Retries, idempotent re-runs, and a findings note with row counts — the Week-4 ingestion lab hardened into a portfolio repo.

DatabasePostgreSQL
ToolchainVS Code + SQLTools
Milestones4 Guided Stages
Recruiter OutputVerified GitHub Repo
View 4 Milestones
Full project workspace, live database credentials, AI mentor & verified certificate
Project Deliverables

What You Will Ship to GitHub

Hiring managers don't want to see another cookie-cutter Titanic or Iris tutorial. You will build a professional repository with modular scripts and executive business memos that demonstrate commercial analytical maturity.

github.com/your-username/de-ingestion-mini-pipelinePortfolio Structure
├── sql/
01_exploratory_profiling.sql // Schema audits, table volume, date ranges
02_revenue_trends.sql // Monthly GMV, order volume & AOV evolution
03_customer_concentration.sql // Pareto 80/20 distribution, repeat buyer cohorts
├── findings/
00_executive_summary.md // 3 core business takeaways for executive stakeholders
01_business_health.md // Detailed breakdown of margins, cancellations, and seasonality
03_customer_segments.md // Customer lifetime spend & cohort concentration
├── README.md // Professional project front-door with data schema diagram
Outcomes

What You Will Master

Paginate a REST API with retries + exponential backoff
Land raw extracts as partitioned Parquet
Upsert Parquet into staging inside one transaction
Track watermarks so re-runs are idempotent
Curriculum

4 Guided Project Milestones

M1

Repo setup + fixture landing

Repo layout, fixture payloads, and staging DDL running.

~30 mins
M2

Paginated fetch with retries

fetch.py pulls every page with backoff on 429/5xx.

~90 mins
M3

Incremental load with watermark

Core Milestone

load.py upserts Parquet to staging; watermark advances on success.

~90 mins
M4

README + failure drill

Portfolio README plus a demonstrated retry/recovery run.

~60 mins
Career Value

ATS Keywords & Resume Ready Bullets

Tools
PythonpandasParquetPostgreSQLGit/GitHub
Methods
Common Table Expressions (CTEs)Window FunctionsTime-Bucket AggregationsCohort AnalysisData Profiling & Auditing
Business Concepts
AOV (Average Order Value)Customer ConcentrationRepeat Purchase BehaviorCohort RetentionRevenue Health Metrics
Pre-Written Resume Bullet (Copy & Paste)

"Authored an end-to-end data analytics project on Ingestion Mini-Pipeline utilizing Python, pandas, Parquet — delivered production-grade queries, cohort distributions, and an executive stakeholder summary published as a portfolio GitHub repository."

Preparation

Reading & References

Ingestion mini-pipeline brief
setup guide · Premium Access
Ingestion starter: fetch.py + load.py skeleton
article · Premium Access
Ingestion mini-pipeline rubric
markdown · Premium Access

Ready to build and ship Ingestion Mini-Pipeline?

Instant access to cloud database credentials, milestones, and starter queries.

Project Overview

Free Ingestion Mini-Pipeline portfolio project — with AI review

Build a real ingestion mini-pipeline project for your data analyst portfolio in your own public GitHub repo — free brief, starter template, and milestone guides. When your code is ready, the ₹99 pass gets every milestone reviewed against a fixed rubric (de ingestion mini pipeline walkthrough included) and issues a verifiable certificate on completion.

Is the Ingestion Mini-Pipeline project free?

The full project brief, milestone guides, and starter template are free to audit. The AI-powered review pass and verified certificate unlock at ₹99.

Can I add the Ingestion Mini-Pipeline project to my resume and GitHub?

Yes — that is the point. You build in your own public GitHub repo, every milestone is reviewed against a fixed rubric, and the certificate links to the repo employers can inspect. Only list what is visible in your repo.

How long does the Ingestion Mini-Pipeline project take?

Most students finish the 4 milestones in 2–4 weekends. Milestones unlock in order, and you can re-submit any milestone that needs work.

Rubric-reviewed · Plagiarism-checked · Verifiable certificate

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