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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Arindam Choudhury — Data Engineer</title>
<meta name="description" content="Arindam Choudhury — Data Engineer with 11 years building cloud data platforms on AWS, GCP, and Databricks. PySpark ETL, multi-cloud data warehouses, Terraform.">
<meta name="author" content="Arindam Choudhury">
<link rel="canonical" href="https://arindamchoudhury.github.io/">
<style>
:root {
--accent: #1f3a5f;
--accent-light: #3a5f8a;
--ink: #222;
--muted: #666;
--rule: #d8dee6;
--bg: #ffffff;
--maxw: 820px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
margin: 0;
background: #eef1f4;
color: var(--ink);
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
line-height: 1.5;
font-size: 16px;
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.shell {
display: grid;
grid-template-columns: 240px minmax(0, var(--maxw));
gap: 28px;
justify-content: center;
align-items: start;
padding: 32px 16px;
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.page {
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background: var(--bg);
padding: 48px 56px;
box-shadow: 0 2px 16px rgba(0,0,0,0.08);
border-radius: 4px;
}
/* Sidebar — notes links */
.sidebar {
position: sticky;
top: 32px;
background: var(--bg);
box-shadow: 0 2px 16px rgba(0,0,0,0.08);
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padding: 22px 24px;
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.sidebar h2 {
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.sidebar ul.links { list-style: none; padding: 0; margin: 0; }
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font-size: 0.8rem;
margin-top: 2px;
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a { color: var(--accent-light); text-decoration: none; }
a:hover { text-decoration: underline; }
header { margin-bottom: 28px; }
h1 {
font-size: 2.2rem;
color: var(--accent);
margin: 0 0 2px;
letter-spacing: 0.5px;
}
.role {
font-size: 1.05rem;
color: var(--muted);
letter-spacing: 3px;
text-transform: uppercase;
margin: 0 0 12px;
}
.contact {
font-size: 0.9rem;
color: var(--muted);
display: flex;
flex-wrap: wrap;
gap: 6px 14px;
align-items: center;
}
.contact span.sep { color: var(--rule); }
section { margin-top: 26px; }
h2 {
font-size: 0.85rem;
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p { margin: 0 0 10px; }
/* Skills */
.skills { display: grid; grid-template-columns: 180px 1fr; gap: 6px 18px; }
.skills dt { font-weight: 600; color: var(--accent); }
.skills dd { margin: 0; }
/* Entries (experience / education / projects / certs) */
.entry { margin-bottom: 16px; }
.entry:last-child { margin-bottom: 0; }
.entry-head {
display: flex;
justify-content: space-between;
align-items: baseline;
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flex-wrap: wrap;
}
.entry-head .org { font-weight: 700; color: var(--accent); font-size: 1.05rem; }
.entry-head .place { font-weight: 400; color: var(--muted); font-style: italic; font-size: 0.95rem; }
.entry-head .dates { color: var(--muted); font-style: italic; font-size: 0.9rem; white-space: nowrap; }
.note { color: var(--muted); font-style: italic; font-size: 0.9rem; margin: 2px 0 8px; }
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.subrole-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.subrole-head .title { font-weight: 600; }
.subrole-head .dates { color: var(--muted); font-style: italic; font-size: 0.88rem; white-space: nowrap; }
ul { margin: 6px 0 0; padding-left: 20px; }
li { margin-bottom: 4px; }
.proj-tags { color: var(--accent-light); font-size: 0.85rem; font-style: italic; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 28px; }
.langs { display: flex; flex-wrap: wrap; gap: 6px 22px; }
.langs b { color: var(--accent); }
footer {
margin-top: 30px;
padding-top: 14px;
border-top: 1px solid var(--rule);
font-size: 0.8rem;
color: var(--muted);
text-align: center;
}
/* Collapse sidebar into a single column on narrow screens */
@media (max-width: 960px) {
.shell { grid-template-columns: 1fr; max-width: var(--maxw); }
.sidebar { position: static; order: 2; }
.page { order: 1; }
}
@media (max-width: 600px) {
.shell { padding: 0; gap: 16px; }
.page { padding: 28px 20px; box-shadow: none; border-radius: 0; }
.sidebar { box-shadow: none; border-radius: 0; border-top: 1px solid var(--rule); }
h1 { font-size: 1.7rem; }
.skills { grid-template-columns: 1fr; gap: 2px; }
.skills dt { margin-top: 8px; }
.two-col { grid-template-columns: 1fr; }
}
@media print {
body { background: #fff; font-size: 11pt; }
.shell { display: block; padding: 0; }
.sidebar { display: none; }
.page { margin: 0; max-width: none; box-shadow: none; padding: 0; border-radius: 0; }
a { color: var(--ink); }
footer { display: none; }
section { page-break-inside: avoid; }
.entry { page-break-inside: avoid; }
}
</style>
</head>
<body>
<div class="shell">
<aside class="sidebar">
<h2>Notes & Writing</h2>
<ul class="links">
<li>
<a href="https://arindamchoudhury.github.io/spark-gyan/">PySpark Reading Notes</a>
<span class="desc">Apache Spark / PySpark study notes</span>
</li>
<li>
<a href="https://arindamchoudhury.github.io/terraform-gyan/">Terraform Reading Notes</a>
<span class="desc">Terraform / OpenTofu study notes</span>
</li>
<li>
<a href="https://github.com/arindamchoudhury">GitHub</a>
<span class="desc">Projects & source repositories</span>
</li>
</ul>
</aside>
<main class="page">
<header>
<h1>Arindam Choudhury</h1>
<p class="role">Data Engineer</p>
<div class="contact">
<span>Barcelona, Spain</span>
<span class="sep">•</span>
<a href="https://www.linkedin.com/in/archoudhury/" rel="me">linkedin.com/in/archoudhury</a>
<span class="sep">•</span>
<a href="https://github.com/arindamchoudhury" rel="me">github.com/arindamchoudhury</a>
</div>
</header>
<section>
<h2>Professional Summary</h2>
<p>Data Engineer with eleven years of industry experience building cloud data platforms on AWS, GCP, and Databricks, backed by a five-year research foundation in High Performance Computing. Specialist in PySpark ETL, multi-cloud data warehouses, and Terraform-provisioned infrastructure. AWS Certified Data Engineer with a long track record of taking data systems from prototype into production.</p>
</section>
<section>
<h2>Technical Skills</h2>
<dl class="skills">
<dt>Languages</dt><dd>Python, SQL, Java</dd>
<dt>ETL & Big Data</dt><dd>Apache Spark (PySpark), Databricks, Apache Airflow, Apache Kafka</dd>
<dt>AWS</dt><dd>Lambda, Glue, Athena, S3, EMR, Redshift, CloudWatch</dd>
<dt>GCP</dt><dd>BigQuery, GCS, Dataproc, Cloud SQL, Cloud Monitoring</dd>
<dt>Infrastructure</dt><dd>Terraform (IaC), Git</dd>
<dt>ML & Data Science</dt><dd>PyTorch, Pandas, Scikit-learn</dd>
<dt>Tools</dt><dd>VS Code, Jupyter Notebook, Anaconda</dd>
</dl>
</section>
<section>
<h2>Experience</h2>
<div class="entry">
<div class="entry-head">
<span><span class="org">Ackstorm</span> <span class="place">Barcelona, Spain</span></span>
<span class="dates">Apr 2015 — Present</span>
</div>
<p class="note">Ecmanaged was acquired by Ackstorm in 2017; roles below span both entities.</p>
<div class="subrole">
<div class="subrole-head">
<span class="title">Data Engineer</span>
<span class="dates">Jan 2017 — Present</span>
</div>
<ul>
<li>Architected and deployed Databricks workspaces and clusters with Terraform, enabling repeatable, version-controlled environments.</li>
<li>Authored production ETL jobs in Databricks (PySpark) for ingestion, transformation, and analytics workloads.</li>
<li>Built Databricks dashboards to deliver curated metrics and data insights to business stakeholders.</li>
<li>Designed and deployed data warehouses on AWS (S3, Glue, Athena) and GCP (GCS, BigQuery).</li>
<li>Built serverless, event-driven data pipelines on AWS Lambda.</li>
<li>Developed Python services to move and reconcile data between heterogeneous database systems.</li>
</ul>
</div>
<div class="subrole">
<div class="subrole-head">
<span class="title">Senior Cloud Engineer (Ecmanaged)</span>
<span class="dates">Mar 2016 — Dec 2017</span>
</div>
<ul>
<li>Built a cloud infrastructure monitoring stack using Telegraf, InfluxDB, and Alerta.</li>
<li>Developed the monitoring system's REST API with the Falcon Python web framework.</li>
<li>Implemented metric collectors that pulled data from AWS CloudWatch and GCP Cloud Monitoring.</li>
<li>Wrote Python automation that generated alerts and notifications from configurable thresholds.</li>
</ul>
</div>
<div class="subrole">
<div class="subrole-head">
<span class="title">Junior Developer (Ecmanaged)</span>
<span class="dates">Apr 2015 — Feb 2016</span>
</div>
<ul>
<li>Developed Python applications and refactored portions of the Ecmanaged monitoring platform's codebase.</li>
</ul>
</div>
</div>
<div class="entry">
<div class="entry-head">
<span><span class="org">Universitat Autònoma de Barcelona</span> <span class="place">Bellaterra, Spain</span></span>
<span class="dates">Oct 2010 — Mar 2015</span>
</div>
<div class="subrole">
<div class="subrole-head">
<span class="title">PhD Research Fellow</span>
<span class="dates">Oct 2010 — Mar 2015</span>
</div>
<ul>
<li>Researched performance improvements for Hadoop / MapReduce workloads running on High Performance Computing clusters; supervised at the Computer Architecture and Operating Systems Department.</li>
</ul>
</div>
</div>
</section>
<section>
<h2>Selected Projects</h2>
<div class="entry">
<div class="entry-head">
<span class="org">Databricks Lakehouse on AWS</span>
<span class="proj-tags">Databricks • PySpark • Terraform • AWS</span>
</div>
<p>Designed a Terraform-provisioned Databricks platform running PySpark ETL jobs end-to-end—from raw ingestion through curated tables—and surfaced the results to business users through Databricks dashboards.</p>
</div>
<div class="entry">
<div class="entry-head">
<span class="org">Multi-Cloud Data Warehouses</span>
<span class="proj-tags">AWS • GCP • Python • SQL</span>
</div>
<p>Stood up production data warehouses on two clouds in parallel: S3 + Glue + Athena on AWS, and GCS + BigQuery on GCP. Built supporting Python services for cross-system data movement and serverless ingestion via AWS Lambda.</p>
</div>
<div class="entry">
<div class="entry-head">
<span class="org">Cloud Infrastructure Monitoring Platform</span>
<span class="proj-tags">Python • Telegraf • InfluxDB • Alerta • Falcon</span>
</div>
<p>Built an end-to-end monitoring stack collecting metrics from AWS CloudWatch and GCP Cloud Monitoring, exposed through a Falcon REST API and a Python alerting engine for thresholds and notifications.</p>
</div>
<div class="entry">
<div class="entry-head">
<span class="org">Hadoop on HPC — PhD Research</span>
<span class="proj-tags">Hadoop • MapReduce • HPC clusters</span>
</div>
<p>Five years of doctoral research at Universitat Autònoma de Barcelona on improving the performance of Hadoop workloads when scheduled on traditional High Performance Computing infrastructure.</p>
</div>
</section>
<section>
<h2>Education</h2>
<div class="entry">
<div class="entry-head">
<span class="org">Master in High Performance Computing</span>
<span class="dates">2010 — 2011</span>
</div>
<p class="note">Universitat Autònoma de Barcelona — Spain</p>
</div>
<div class="entry">
<div class="entry-head">
<span class="org">Master of Engineering in Software Engineering</span>
<span class="dates">2007 — 2009</span>
</div>
<p class="note">Thapar Institute of Engineering & Technology — India</p>
</div>
<div class="entry">
<div class="entry-head">
<span class="org">Bachelor of Technology in Information Technology</span>
<span class="dates">2002 — 2006</span>
</div>
<p class="note">West Bengal University of Technology — India</p>
</div>
</section>
<section>
<h2>Certifications</h2>
<div class="entry">
<div class="entry-head">
<span class="org">AWS Certified Data Engineer — Associate</span>
<span class="dates">Nov 2025 — Nov 2028</span>
</div>
</div>
<div class="entry">
<div class="entry-head">
<span class="org">Astronomer Certification: DAG Authoring for Apache Airflow 3</span>
<span class="dates">Issued Nov 2025</span>
</div>
</div>
<div class="entry">
<div class="entry-head">
<span class="org">Google Cloud Certified Professional Data Engineer</span>
<span class="dates">Aug 2017 — Aug 2019</span>
</div>
</div>
</section>
<section>
<h2>Continuing Education</h2>
<ul>
<li>Data Engineering Specialization — DeepLearning.AI on Coursera</li>
<li>Machine Learning Specialization — Stanford University & DeepLearning.AI on Coursera</li>
<li>Deep Learning Nanodegree — Udacity</li>
</ul>
</section>
<section>
<h2>Languages</h2>
<p class="langs"><span><b>English</b> Proficient</span><span><b>Spanish</b> Intermediate</span><span><b>Bengali</b> Native</span></p>
</section>
<footer>
Built with plain HTML & CSS · Hosted on GitHub Pages
</footer>
</main>
</div>
</body>
</html>