Himanshu Warekar
Senior Software Developer at Etsy
Leinster, Ireland
Summary
🤩
Rockstar🎓
Top SchoolHimanshu Warekar is a Senior Software Developer with 8 years’ experience building and hardening ERP and compliance systems, currently at Etsy in Leinster, Ireland. He blends backend Python expertise with full-stack work—shipping features and refactors across ERPNext, Frappe, POS and Helpdesk modules—and has a track record of improving code maintainability, accuracy of financial calculations, and timezone/precision correctness. His open-source contributions include fixes and feature work in high-profile Frappe/ERPNext repositories (HRMS, subscriptions, GST validation and SLA implementations), showing both product- and security-minded engineering. He has led performance and cost improvements in production systems, mentored small teams, and reduced operational overhead through thoughtful architecture changes. Notably, he has tackled tricky domain problems like Indian GST, high-precision financial rounding, and server-side template injection hardening—areas that often hide critical bugs. Curious and experimental by nature, he looks for opportunities to learn new technologies while delivering reliable, auditable solutions.
8 years of coding experience
5 years of employment as a software developer
Master of Science - MS, Computing, Master of Science - MS, Computing at Dublin City UniversityBachelor of Engineering - BE, Computer Engineering, Bachelor of Engineering - BE, Computer Engineering at MCT's Rajiv Gandhi Institute Of Technology
English
Github Skills (36)
sal10
javascript10
erpnext10
python10
gstreamer10
sli10
regular-expression10
frappe10
sql10
database-design10
payout10
frappe-framework10
compliance10
ticket-system10
bug-tracker9
Programming languages (5)
Github contributions (5)
frappe/frappe
Oct 2018 - Aug 2022
Low code web framework for real world applications, in Python and Javascript
Role in this project:
Back-end Developer
Back-end DeveloperContributions:46 reviews, 902 commits, 362 PRs in 3 years 10 months
Contributions summary:Himanshu primarily contributed to bug fixes and enhancements for the Frappe framework, focusing on improving features and addressing permission issues. Their work involved backend logic changes in Python and improvements to email functionality. Additionally, they were involved in the deployment process, addressing issues to ensure a smooth release and site upgrade process.
cmspythonzammadfrappecommunity-management
frappe/helpdesk
Mar 2019 - Jun 2021
Modern, Streamlined, Free and Open Source Customer Service Software
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:75 commits in 2 years 3 months
Contributions summary:Himanshu primarily contributed to the implementation of Service Level Agreements (SLAs) within the Frappe Helpdesk repository. Their work involved developing backend logic in Python, modifying frontend components (likely with JavaScript and Vue3), and updating database structures, indicating a focus on both the application's business logic and the user interface. The contributions encompassed various aspects of SLA functionality, including time tracking, priority setting, and the display of SLA indicators. The user's changes modified both backend and frontend code, demonstrating a full-stack skillset.
spring-bootjavaphpcustomer-servicecustomer-support
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