I am looking for a Software Engineer role where I can keep building full-stack products, using React, Node.js, Flutter, and Java/Spring Boot. I built Twined (50,000+ users), led Leadnab, a CRM later acquired by Turing, and grew ApplySync to 25,000+ users.
Open to opportunities
Vaibhav Singh
@imvaibhav1505
Software Engineer with full-stack experience across React, Node.js, Flutter, and Java/Spring Boot, building scalable web and mobile apps.
IndiaWhat I'm looking for
I am a Software Engineer at VKV Technologies, where I build and ship full-stack web and mobile features using React, Node.js, Flutter, and Java/Spring Boot. I first joined VKV Technologies as a Full Stack Developer Intern (Apr-Jul 2024), then returned as a full-time Software Engineer in May 2025.
Alongside my full-time role, I built Twined, a real-time social app that scaled to 50,000+ users, and independently maintain ApplySync, an AI-powered job-tech platform with 25,000+ users. I also led Leadnab, a CRM platform later acquired by Turing. These projects taught me a lot about scaling real-world products end to end - from backend architecture on AWS to frontend UX.
I hold a Bachelor of Technology in Computer Science from Shri Ramswaroop Memorial University (CGPA 7.4/10.0). I enjoy working across the stack, from designing REST APIs and databases to building responsive, user-friendly interfaces.
Experience
Work history, roles, and key accomplishments
Current
Software Engineer
VKV Technologies Private Limited
May 2025 - Present (1 year 4 months)
Full-stack Software Engineer building and maintaining web and mobile features using React, Node.js, Flutter, and Java/Spring Boot. Rejoined VKV Technologies for this full-time role in May 2025 after completing a Full Stack Developer Internship here from April to July 2024. Built Twined (50,000+ users) and led Leadnab, a CRM later acquired by Turing.
Full Stack Developer Intern
VKV Technologies Private Limited
Apr 2024 - Jul 2024 (3 months)
Worked as a Full Stack Developer Intern at VKV Technologies, building WebSocket-based (Socket.io) backend communication that reduced messaging latency by 30% under concurrent load. This internship led to a full-time Software Engineer offer, which I rejoined in May 2025.
BI
Flutter Developer Intern
Bharat Intern
Oct 2022 - Dec 2022 (2 months)
Created multiple applications including Weather Application and Quiz App. Developed 3 Flutter applications using Dart programming language, with an average codebase size of 1500 lines per application.
SZ
Fronted Web Developer Intern
Skill Zee
Oct 2022 - Oct 2022 (0 months)
Implemented a responsive Todo List feature allowing users to add, delete, and mark tasks as complete. Designed and developed a Landing Page with a conversion rate improvement of 25%.
Education
Degrees, certifications, and relevant coursework
Shri Ramswaroop Memorial University
Bachelor of Technology, Computer Science and Engineering
2021 - 2025
Grade: 7.4
Team Lead at Technex Hackathon, IIT BHU. Solved 400+ DSA problems across LeetCode, GeeksforGeeks, and NeetCode.
DC
D A V Inter College
Intermediate, Mathematics
2018 - 2020
Grade: 70
Availability
Open to opportunities
Location
IndiaAuthorized to work in
Website
vaibhavsingh.proPortfolio
vaibhavsingh.proSalary expectations
1200k-1500k INR
Job categories
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