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arnab.kumar

PROFILE

Arnab.kumar

Arnab Kumar developed and enhanced SMS delivery and authentication systems across the nammayatri/shared-kernel and nammayatri/nammayatri repositories over five months. He integrated Karix and Pinbix SMS providers, refactored modules for maintainability, and implemented provider-agnostic configurations to improve OTP reliability and reduce vendor lock-in. Using Haskell and YAML, Arnab introduced encryption for sensitive SMS configuration data, strengthening security around OTP workflows. He also built the Rider Platform Authentication API, establishing a foundation for token-based access control, and expanded the messaging schema to support role-specific notifications. His work demonstrated depth in backend development, API integration, and secure, scalable system design.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

8Total
Bugs
0
Commits
8
Features
7
Lines of code
1,478
Activity Months5

Your Network

130 people

Same Organization

@nammayatri.in
12

Work History

February 2026

1 Commits • 1 Features

Feb 1, 2026

Feb 2026: Delivered Messaging System Enhancement by adding MerchantMessage.messageType to enable clearer, role-specific messaging for riders and drivers. The change establishes a scalable foundation for targeted notifications and analytics, aligned with product goals to improve user experience and operational clarity.

January 2026

1 Commits • 1 Features

Jan 1, 2026

Delivered foundational security enhancement for the rider platform by implementing the Rider Platform Authentication API. This internal API enables secure access to rider-related functionalities and establishes groundwork for token-based authentication and future access controls. The implementation is tied to commit 86fe104f9cf3e1af895a45a787951330b63a58a5 with message 'Auth api for BAP'. Overall impact: improved security posture for rider features, clearer access boundaries, and a scalable auth foundation for upcoming features across the nammayatri/nammayatri repository.

December 2025

2 Commits • 2 Features

Dec 1, 2025

December 2025: Security enhancements and SMS delivery expansion across two repositories. Implemented encryption for SMS configuration data to protect OTP credentials, and integrated Pinbix as an additional SMS provider to diversify delivery options. No user-reported defects; changes are designed to reduce risk, improve reliability, and support business goals. Demonstrates cross-repo collaboration with a focus on security, scalability, and vendor flexibility.

November 2025

1 Commits • 1 Features

Nov 1, 2025

Month: 2025-11. Delivered Pinbix SMS provider integration for OTP delivery in nammayatri/shared-kernel. Implemented new configurations, API handling, and response mapping to support additional mobile carriers and improve OTP reliability. This work extends provider options and strengthens the OTP delivery pipeline with Pinbix.

October 2025

3 Commits • 2 Features

Oct 1, 2025

Month 2025-10: Implemented Karix SMS provider integration across two repositories (shared-kernel and nammayatri), introducing new modules and refactors to support Karix in SMS handling, OTP delivery, and provider configuration. This work enables reliable, scalable SMS delivery through Karix and positions the platform for easier addition of future providers.

Activity

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Quality Metrics

Correctness85.0%
Maintainability82.4%
Architecture82.4%
Performance82.4%
AI Usage25.0%

Skills & Technologies

Programming Languages

HaskellYAML

Technical Skills

API developmentAPI integrationHaskellSMS servicesbackend developmentdatabase managementencryption

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

nammayatri/shared-kernel

Oct 2025 Dec 2025
3 Months active

Languages Used

Haskell

Technical Skills

API integrationHaskellSMS servicesbackend developmentencryption

nammayatri/nammayatri

Oct 2025 Feb 2026
4 Months active

Languages Used

HaskellYAML

Technical Skills

Haskellbackend developmentAPI integrationAPI developmentdatabase management