Shivansh Kalra profile photo 1 on Tal

Shivansh Kalra

SDE Attack Capital(YC W22) | Building AI First SaaS for the new age businesses | Developer

Gurugram

< 1 year of work experience

Attack Capital
May 20262 moJul 2026

Remote

Working on HealOS, a venture product by Attack Capital built for the US healthcare market. Contributing to core product features in production, actively used by 50+ healthcare companies across the US. Owning features end-to-end with direct access to the founding team in a fast-moving early-stage environment.
Pactle
Feb 20263 mosApr 2026

Remote

Joined as one of the fiounding engineers to build the technical foundation from scratch for a generalized product. Owned core system architecture, designed the backend infrastructure, and established the engineering standards the team built on top of. As part of the hiring process, built a deterministic RFQ-to-quote engine with fuzzy search, multi-algorithm scoring, OCR for image-based inputs, role-based approvals, and multi-currency support — which got me the role. Left after the foundational build was complete.
ThinklyLabs
Oct 20254 mosJan 2026

Remote

Built "Authr" from 0 to 1, architecting the core engine for automated content generation Owned end-to-end feature development from database design to API and frontend integration Optimized system infrastructure and performance to handle high-volume workflows Set up and managed CI/CD pipelines to streamline production deployments Led technical delivery for multiple custom client projects and features Collaborated with the founding team on product architecture and rapid feature iteration
FilFlo
Sep 20252 mosOct 2025

Gurugram, Haryana, India

Architected and developed microservices-based backend system using Node.js and NestJS, successfully migrating 50% of monolithic codebase to distributed architecture, reducing deployment time by 40% and improving system maintainability Optimized database queries and implemented Redis caching layer, achieving 37% improvement in data retrieval performance and reducing server response times from 800ms to sub-300ms for 10,000+ daily requests Collaborated with cross-functional teams through code reviews and design discussions, incorporating feedback to improve system reliability while maintaining 99.8% uptime across distributed services Implemented Docker containerization for development and staging environments, streamlining deployment processes and ensuring consistency across development teams
Testline
Dec 20243 mosFeb 2025

Remote

Contributed to the overall Product Strategy, improvement of Sign up flow, and improvement of overall signup rates. Ideated and executed a more streamlined Signup flow, improving user sign up rates by 11% Developed 2 Alternative products for broadening of the scope company operates in
GitHub
@shivansh193
Personal portfolioshivansh-kalra.vercel.app

Shivansh’s AI Stack

antigravity
antigravity
codex
codex
claudecode
claudecode

Education

Shiv Nadar University

B. Tech in Computer Science, Computer Science

Shiv Nadar University

20234 yrs2027

High School Diploma, None

Amity International school

20202 yrs2022

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Headline

SDE Attack Capital(YC W22) | Building AI First SaaS for the new age businesses | Developer

About

Building since 5+ Years. Built 2 startups, 200+ Happy customers 500+ Businesses. 20+ Side projects reaching upwards of 250k+ Uses. Experienced in GenAI, Next, Product and finance. 3rd year at Shiv Nadar University. Looking to work at Product and Tech at startups. Always open for a coffee chat over anything and everything tech and startups. Let's connect.

Location

Gurugram

AI stack

antigravity

codex

claudecode

Work experience

Software Engineer at Attack Capital, May 2026 - Jul 2026 · 2 mo, Remote, Working on HealOS, a venture product by Attack Capital built for the US healthcare market. Contributing to core product features in production, actively used by 50+ healthcare companies across the US. Owning features end-to-end with direct access to the founding team in a fast-moving early-stage environment.

Founding Software Engineer at Pactle, Feb 2026 - Apr 2026 · 3 mos, Remote, Joined as one of the fiounding engineers to build the technical foundation from scratch for a generalized product. Owned core system architecture, designed the backend infrastructure, and established the engineering standards the team built on top of. As part of the hiring process, built a deterministic RFQ-to-quote engine with fuzzy search, multi-algorithm scoring, OCR for image-based inputs, role-based approvals, and multi-currency support — which got me the role. Left after the foundational build was complete.

Full Stack Engineer at ThinklyLabs, Oct 2025 - Jan 2026 · 4 mos, Remote, Built "Authr" from 0 to 1, architecting the core engine for automated content generation Owned end-to-end feature development from database design to API and frontend integration Optimized system infrastructure and performance to handle high-volume workflows Set up and managed CI/CD pipelines to streamline production deployments Led technical delivery for multiple custom client projects and features Collaborated with the founding team on product architecture and rapid feature iteration

Back End Developer at FilFlo, Sep 2025 - Oct 2025 · 2 mos, Gurugram, Haryana, India, Architected and developed microservices-based backend system using Node.js and NestJS, successfully migrating 50% of monolithic codebase to distributed architecture, reducing deployment time by 40% and improving system maintainability Optimized database queries and implemented Redis caching layer, achieving 37% improvement in data retrieval performance and reducing server response times from 800ms to sub-300ms for 10,000+ daily requests Collaborated with cross-functional teams through code reviews and design discussions, incorporating feedback to improve system reliability while maintaining 99.8% uptime across distributed services Implemented Docker containerization for development and staging environments, streamlining deployment processes and ensuring consistency across development teams

Technical Product Manager at Testline, Dec 2024 - Feb 2025 · 3 mos, Remote, Contributed to the overall Product Strategy, improvement of Sign up flow, and improvement of overall signup rates. Ideated and executed a more streamlined Signup flow, improving user sign up rates by 11% Developed 2 Alternative products for broadening of the scope company operates in

Education

B. Tech in Computer Science, Computer Science, Shiv Nadar University

High School Diploma, None, Amity International school

Public links

github: https://github.com/shivansh193

shivansh-kalra.vercel.app: https://shivansh-kalra.vercel.app/