Data Pipeline & Web Crawling Engineering

I build data pipelines that keep running: distributed crawlers, scheduled ingestion, and data lakes that turn messy third-party sources into data your business can trust. In one engagement a crawl cycle dropped from over 12 hours to under 20 minutes for more than 40,000 items.

What I deliver

  • Distributed web crawlers with scheduling, retries, backoff, and checkpoint resumption
  • Ingestion and reconciliation of data from APIs, files, and websites
  • Data lakes and analytics pipelines on AWS (Lambda, S3) and PostgreSQL
  • Syndication pipelines that publish one data source to several portals
  • Monitoring so failures are visible before your customers notice

When to hire me

  • Your scraping or sync jobs take too long, fail mid-run, or get blocked.
  • Data from many suppliers or utilities arrives in inconsistent formats.
  • You need reporting on top of data that is currently scattered across systems.

Relevant work

Distributed Systems & Automation

E-crawl

High-Throughput Distributed Web Crawler

Reduced crawl cycle time from 12+ hours to under 20 minutes for 40,000+ items—a 97% reduction in processing latency.

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Data Engineering & Cloud

Inibii Technology

Commercial Utility Data Lake & Energy Analytics

Architected scalable data lake processing tens of gigabytes of monthly utility telemetry seamlessly.

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Data Science & NLP

Interest Miner

Academic Research & Topic Correlation Analytics

Engineered full data pipeline from API extraction to interactive visualization.

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Real Estate & PropTech

Homesy

German Real Estate Syndication & Inquiries Platform

Built multi-portal syndication pipeline saving property managers hours of redundant data entry.

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Frequently asked questions

Can you speed up an existing crawler?

Usually. I look at scheduling, concurrency, failure handling, and rate limiting first. One crawler I rebuilt went from 12+ hours per cycle to under 20 minutes.

What technologies do you use for pipelines?

Python with Celery for task distribution, PostgreSQL for state, and AWS services such as Lambda and S3 where they fit.

Do you handle large data volumes?

Yes. I have built a data lake processing tens of gigabytes of utility telemetry per month.

Let's talk about your project

Email a few lines on your goals, stack, and timeline. I reply within 24 hours.

Email aakashjsr@gmail.com