Headline

SDE 1 @ Kalvium | Full‑Stack Developer (React/Next.js) | Java, C++, JS, Python, Go | Engineering AI‑powered tools for human productivity

About

I am a Software Development Engineer(SDE 1) at Kalvium, working as a full-stack developer specializing in modern web technologies such as React, Next.js, and TypeScript. Over the past year, I have designed, built, and shipped production features end-to-end — from crafting robust APIs and data models to delivering polished, high-performance user interfaces. My strengths lie in strong programming fundamentals, data structures, algorithms, and clean software design. I am experienced across the MERN and TNT (Tailwind + Next.js + TypeScript) stacks, and have worked with Vue and Angular when required. I’m a multilingual programmer proficient in Java, C++, JavaScript, TypeScript, Python, and Go. I have a solid understanding of cloud infrastructure, including Docker, EC2, CI/CD pipelines, cloud functions, batch jobs, containers, and process management tools like PM2. I’m also comfortable working with monorepos and have hands-on experience with AI development tools such as Langfuse, OpenAI, Claude, Cursor, and Codex. Passionate about AI, I actively embrace it as a powerful productivity multiplier rather than fearing it. I leverage AI tools daily to iterate faster and build smarter. In the last year, I have contributed nearly 5,000 commits and thousands of lines of production code while collaborating closely with product and design teams. I enjoy taking full ownership of features, rapidly iterating based on user feedback, and exploring how technology — especially AI — can scale impact in education and beyond. In my free time, I work on side projects and sharpen my system design skills.

Location

Bengaluru

AI stack

anthropic apis

claude code

codex

deepseek

hugging face

manus

Work experience

SDE 2 at Kalvium, Aug 2026 - Present · 1 mo, HSR

SDE 1 at Kalvium, Dec 2025 - Present · 7 mos, Bengaluru, Karnataka, India

SDE Intern L2 at Kalvium, Aug 2025 - Nov 2025 · 4 mos, Banglore, Worked on data modelling and schema design, ensuring scalability. Took end-to-end ownership of modules—from requirement gathering and technical planning to implementation, testing, and deployment. Collaborated effectively with cross-functional teams through clear business communication, managing tickets, writing detailed bug reports, and supporting on-demand feature development. This contributed to smoother development cycles, better alignment between product and engineering, and higher overall system reliability.

SDE Intern L1 at Kalvium, Jan 2025 - Jul 2025 · 7 mos, Bengaluru, Karnataka, India, Contributed actively to strengthening the existing automated testing and CI/CD pipelines, ensuring more reliable deployments across the monorepo architecture. Gained hands-on experience with microservices and Knex.js for efficient database management, while also working with a role-based user management system to enhance access control and security. Additionally, developed features for bulk data upload and verification, incorporating robust sanitization and validation mechanisms to maintain data integrity. Worked across multiple modules in a Next.js codebase, improving maintainability, performance, and overall developer experience.

Project Intern at iamneo (Formerly Examly), Sep 2023 - Dec 2024 · 1 yr 4 mos, Remote

Software Developer at The Machine Learning CLUB VITAP, Jan 2023 - Dec 2023 · 1 yr

Core Member at CSI VITAP CHAPTER, Jan 2022 - Aug 2022 · 8 mos

Education

Bachelor of Technology - BTech, Computer Science, Vellore Institute of Technology

Matriculation, St. Xavier's High School, Patna

Public links

github: https://github.com/AyushSahay1902

leetcode: https://leetcode.com/ayushsahay1902