Product Development and Consulting in Digital Security, Data Science and Enterprise Architecture:

Publications

Author

Ultimate Event Driven Architecture with Python and Apache Kafka

Soon to be published. The book provides a comprehensive understanding of Event-Driven Architecture (EDA) and facilitates the practical application of this knowledge in the development of high-performance, scalable, and resilient systems using Python and Apache Kafka.

Technical Reviewer

Ultimate Web Authentication Handbook: Strengthen Web Security by Leveraging Cryptography and Authentication Protocols such as OAuth, SAML and FIDO, October 2023

The book offers a comprehensive journey into the realm of enhanced security in web apps. Beginning with web authentication basics, it builds a strong foundation. It explores cryptography fundamentals, essential for secure authentication. The book also delves into the connection between authentication and network security, mastering federated authentication via OAuth and OIDC protocols.

Blogs

1. Keycloak Error Handling: Solution to Redirecting Users to Default Error Page (May 30, 2025)

   When integrating federated identity providers with Keycloak, ensuring a smooth user authentication experience is crucial. One common issue that can disrupt this experience is improper error handling, leading to users being redirected to a default page instead of completing the federated authentication process. This blog post delves into this specific Keycloak error handling mechanism and explores potential solutions.

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2. How to leverage Data Science in Retail Industry (Sept. 2, 2020)

   This blog details out how data pipeline can be leveraged to ingest data and do analytics using AWS analytics stack in retail industry, particularly consumers domain. It also describes how various analytics report, a.k.a. "vanity metrics" reports, and ML can be harnessed to prop up growth.

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3. Building AWS Data Pipeline for cross-account resources (Sept. 1, 2018)

   How you can easily build an automated cross-region/cross-account data pipeline using AWS Data Pipeline and AWS lambda.

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4. Text Classification with Deep Learning in Keras (March 30, 2017)

   This blog post explains how Keras library is used to classify email texts as spam or ham.

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5. Unpickling issue in multi-module Python project (Jan. 18, 2017)

   This post mentions the issue with unpickling in case of multi-module python project set up, and the way to resolve it.

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6. Is Big Data Just a Fad? (Aug. 13, 2015)

   Is big data just a fad? Considering all of its use cases and its integration into IoT, science and machine learning, it might be more than just a buzzword.

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7. Prop Up Development and Testing with DynamoDB Local in Java (Sept. 28, 2013)

   How AWS DynamoDB NoSQL database can be set up locally in development environment and how it can prop up and expedite development process.

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8. Taming the Performance Beast – a Practitioner’s Way (Part 1) (Jan. 4, 2013)

   Performance tuning can be a complex and time consuming process with good chance of you getting frustrated if you do not have abundant patience, especially for products/applications that have high demand on performance but have poor foundation with respect to it. It is an ongoing process – often long and frustrating, that works in an iterative mode and needs to be treated and managed differently from normal development process. One should take a note that this is not about a silver bullet but concerted, honest and persevered effort. If something does not go well, it can be horribly wrong with the potential of rendering the application worse performing than it was initially. This article tells about first-hand real-time experience with tuning including suggestions and guidelines on how one should approach it in order to successfully achieve it.

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