Ajay Singh

About Ajay Singh

Full-Stack Engineer with 4.6years of experience building scalable, high-performance web and mobile experiences using (MERN) React, Next.js, TypeScript, Node.js, NestJS, Express, and React Native (Expo). Strong in translating Figma designs into pixel-perfect, responsive UI using CSS Grid, Flexbox, TailwindCSS, media queries, layout systems, and accessibility best practices. Experienced in optimizing Core Web Vitals (LCP, CLS, TTFB), bundle reduction, image optimization, prefetching, code-splitting, and Lighthouse improvements.Built multiple platforms using Next.js SSR, SSG, ISR, App Router, server components, SEO optimization, OG tags, routing strategies, and Web Core Vitals tracking. Delivered a full SSG-driven learning platform using Strapi Headless CMS, including content modeling, static generation pipelines, incremental rebuilds, and search/indexing optimization.Full-stack experience includes designing REST/GraphQL APIs, Node.js/NestJS, middleware, caching (Redis), rate limiting, cron jobs, queues, and system design fundamentals. Strong database experience across PostgreSQL, MongoDB, Redis, schema modeling, indexing, transactional flows, migrations, and query optimization.Shipped large-scale features at Apna, including the AI Interview Prep Platform (4 lakh+ mock interviews, 74 lakh+ learning minutes) and Apna Advantage (₹5 lakh revenue in month one). Worked end-to-end across UI/UX flows, API design, DB, backend integration, testing, CI/CD, QA collaboration, production debugging, observability (Sentry, logs, dashboards), and A/B experiments.Hands-on with mobile WebView integrations, deep Android/iOS debugging, bridging web-mobile flows, performance profiling, network inspection, secure storage, and React Native (Expo) development. Integrated payment flows, secure authentication (Keycloak SSO, OAuth, JWT, RBAC), and implemented hardened production auth journeys.Strong in DSA, scalable architecture, and writing clean, production-ready, monitored code. Experienced in unit tests, integration tests, E2E workflows, QA coordination, and maintaining high code quality through PR reviews. Actively mentors interns and juniors, drives engineering best practices, and collaborates closely with Product, Design, QA, and Backend teams.

Experience

1. Software Engineer L2

   Think Future Technologies

   Sep 2024 — Present · Bengaluru, IN

   Worked with ApnaPart of : Apna Growth vertical* AI Interview Prep team* SAND team* Apna Advantage teamApna AI Interview Prep Product Dev B2C -Led frontend product development to deliver a frictionless and intuitive interview experience. Took complete ownership from requirement discussions to production deployment. Delivered stable releases, improved WebView handling, and supported a platform hosting 4L+ interviews and 74L+ hours of preps.Apna Advantage (Next.js + Strapi Headless CMS)-Architected the frontend from scratch using SSG/SSR, enabling instant load, SEO-optimized pages, and a fully CMS-driven workflow. Helped launch the product which generated ₹5L+ in the first month with a strong.2 conversion rate.Apna Search & Discovery Platform - Built scalable discovery feeds, advanced search filters, spell-check intelligence, and banner modules using React/Next.js. Improved user navigation, reduced friction, and enhanced overall search UX across millions of job seekers.• Analytics, SEO & Production QualityIntegrated Mixpanel analytics for precise growth tracking across multiple verticals. Improved SEO health of key surfaces for better visibility and organic reach. Actively solved production issues, WebView inconsistencies, and performance bottlenecks.• Cross-Functional CollaborationWorked daily with product managers, designers, and backend teams. Ensured PRD alignment, handled critical launches, and consistently delivered high-quality output on tight timelines

Education

• Bansal Institute of Science & Technology, Raisen Road, Kokta, Anand Nagar, Bhopal - 462021

  Bachelor of Technology - BTech, Information Technology

  2018 — 2022

• Kendriya Vidyalaya

  10th

  2015 — 2016

• Kendriya Vidyalaya

  12th (PCM)

  2017 — 2018