Shantanu Kumar
Software Engineer at Concur Technologies
Bengaluru, Karnataka, India
Summary
👤
Senior🎓
Top SchoolShantanu Kumar is a seasoned software engineer with 15 years of experience building resilient, high-performance backend systems using Java and Clojure, specializing in distributed systems, concurrency, and databases. He has driven platform and reliability work at scale—from zero-downtime migrations at GO-JEK to AWS/Kubernetes platform engineering and Agentic AI apps at Fractl—while authoring a book on Clojure performance. A long-time open-source contributor, he has improved tooling and IDE usability for the Clojure community (notably contributions to Leiningen and Nightcode). Comfortable across the full lifecycle, he combines hands-on coding, architectural refactoring, and operational telemetry to deliver fault-tolerant services. Based in Bengaluru, he pairs deep systems expertise with a practical emphasis on scalability and developer experience.
15 years of coding experience
29 years of employment as a software developer
The Indira Gandhi National Open University (IGNOU)Matriculation, General, Matriculation, General at Chittaranjan High School (EM)
Bengali, Hindi, English
Stackoverflow
1,240reputation
88kreached
25answers
3questions
Github Skills (25)
develop10
scripting10
clojure-cli10
command-line-arguments10
ide10
leiningen10
batchfile10
clojure10
script10
command-line-parser10
argument-parsing10
build-automation10
batch10
command-line-interface9
filetype9
Programming languages (14)
Github contributions (5)
technomancy/leiningen
Jun 2012 - Jun 2014
Moved to Codeberg; this is a convenience mirror
Role in this project:
Backend Developer
Backend DeveloperContributions:9 commits, 7 comments, 2 issues in 2 years
Contributions summary:Shantanu primarily contributed to the `lein.bat` script, which suggests a focus on backend build and deployment processes for the Leiningen project. Their work included implementing upgrade and downgrade functionality, fixing bugs related to classpath issues, and integrating environment variable support. The user also addressed issues in the template generation code within the `src/leiningen/new/templates.clj` file, enhancing functionality and usability.
convenience
oakes/Nightcode
Nov 2013 - Jun 2014
An IDE for Clojure
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:23 commits in 7 months
Contributions summary:Shantanu primarily focused on enhancing the Nightcode IDE for Clojure. They implemented a command-line switch to customize the skin and color theme, modifying the core application logic. Further contributions included refactoring the command-line argument handling into a dedicated namespace and incorporating a paredit help button, improving user interaction and overall usability. Additionally, the user addressed file type detection issues and added syntax highlighting to enhance the developer experience.
clojureide
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