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Jaish Singh

@jaishsingh

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Software engineer at Dealbana Marketing building a multi-vendor marketplace with Next.js, PostgreSQL, and Razorpay.

India

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At Dealbana Marketing, I build and maintain a multi-vendor e-commerce platform with Next.js, React, PostgreSQL, and Drizzle ORM. I work with business stakeholders on vendor onboarding and product-listing workflows, including dynamic category schemas and automated GST computation.

On the Dealbana marketplace project, I implemented Razorpay split settlements and built category-specific product forms with dynamic GST logic. I also contribute features, bug fixes, and code reviews to Wikimedia core and extensions.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

Dealbana Marketing

Apr 2026 - Present (7 months)

Build, optimize, and maintain a multi-vendor e-commerce platform using Next.js and React, implementing routing, rendering, and reusable UI components on a PostgreSQL/Drizzle ORM backend. Collaborate with stakeholders to clarify requirements and integrate REST APIs for payments and logistics.

Next.js React PostgreSQL Drizzle ORM REST APIs Razorpay Shiprocket Cloudflare R2 Docker PostHog SEO

Current

Open-Source Contributor and Maintainer

Current

Wikimedia Foundation

Jun 2025 - Present (1 year 5 months)

Contribute features, bug fixes, and code reviews to Wikimedia core and extensions, collaborating with a distributed team to improve platform stability and user experience.

Open Source Code Review Collaboration Wikimedia

Core Team Member

GDG DevFest Prayagraj

Sep 2025 - Dec 2025 (3 months)

Contribute to event planning, logistics, speaker management, and community outreach for a major Google Developer conference.

Event Planning Logistics Community Outreach

Intern

Infosys Springboard

Oct 2024 - Dec 2024 (2 months)

Built full-stack features using the MERN stack, developing modular React.js components and optimized RESTful Node.js APIs for seamless, scalable dataflow between client and MongoDB backend.

MERN Stack React NodeJS REST APIs MongoDB

Trainee

Indian Institute of Information Technology, Allahabad (IIITA

Jun 2024 - Aug 2024 (2 months)

Collaboratively engineered end-to-end ML solutions using Scikit-learn, Pandas, and NumPy, overseeing the data pipeline from preprocessing and feature engineering to model training and evaluation.

Machine Learning scikit learn Pandas NumPy Data Pipelines