Neeraj Singh · TheNeerajSec
Cyber Security Developer and former SDET. I ship React Native Android apps on Google Play, Astro and React web tools, and take on freelance mobile and web work.
30+
Freelance projects
Sprints, fixes, releases, retainers & NDAs
8+
Products shipped
Play Store apps, web tools, desktop & OSS
4+
Live Play listings
React Native Android under TheNeerajSec
Use the arrows to browse screenshots. For SSB Buddy and TheClosedTest, use Android / Website for Play shots vs marketing site. TheHiddenNotes embeds a live preview; Expo Icon Generator shows a screenshot — open the tool to use it live.
Project
SSB interview prep
Screening, psychology modules, GTO, lecturettes, PIQ, rankings — practice offline with a focused UI.
TheNeerajSec·2024 — Present·Product & engineering·500+ Play Store downloads
Project
Govt jobs & results
Job alerts, exam results, admit cards and recruitment updates from official portals — fast and easy to browse.
TheNeerajSec·2024 — Present·Product & engineering
Project
Roadways timetables
Haryana Roadways routes, schedules, and timings with light/dark mode — built for commuters and low-end devices.
TheNeerajSec·2024 — Present·Product & engineering
Project
12 testers · 14 days
Community mutual testing so indie devs can finish Google Play closed testing with real Android users — free, policy-minded, no bots.
TheNeerajSec·2024 — Present·Product & engineering·600+ Play Store downloads
Project
RAM dump forensics · Windows
Tauri desktop app (Rust + React) for digital forensics: capture volatile memory to a dump file through a simple GUI, built on WinPmem.
Open source·2024 — Present·Author & maintainer
Desktop app (screenshot)
Project
Discreet notes · screen sharing
React and Tailwind marketing site for a privacy-first notes experience: stay prepared in interviews and meetings without exposing your notes when sharing your screen.
TheNeerajSec·2025 — Present·Product & engineering
Embedded preview of the tool page
Project
Expo & React Native icons
Upload artwork, preview, and export the icon sizes you need for Expo — without leaving the browser.
Web tool·2024 — Present·Full-stack tool
Web tool (screenshot — open to use live)
Cyber security engineering and test automation; details below mirror résumé-style entries.
Contributed to xIoTz eXtended Operation Centre (XOC), a unified cyber assurance platform integrating NOC, SOC, TOC, CSPM, and NGVA. Automated threat detection and response workflows; integrated Wazuh for security monitoring.
Automated web and API testing with Java, Selenium, and Postman. Improved CI/CD with GitHub Actions. Used JIRA, Trello, and Allure for reporting and defect tracking.
Representative engagements below (some under NDA). If you are hiring or need a build partner, say hello — same channels as the hero: WhatsApp, résumé (PDF), or Contact.
Start a conversation on WhatsApp Contact form
I take on selected remote work: React Native Android apps, Astro or React sites, CI/CD and release hygiene, API integrations, and small security- or forensics-flavoured tools. Fixed-scope sprints, milestones, or light ongoing support — happy to align on NDAs and timezone overlap (IST).
Hardened navigation and offline edge cases, cleaned up analytics events, and tightened store listing copy, privacy text, and release checklist so the team could ship a confident production build.
Integrated third-party alert webhooks into an internal React dashboard, normalised payloads for consistent UI states, and added GitHub Actions workflows for lint and preview deploys.
Public encoder/decoder tools on this domain — keyboard-first flows, static hosting, shareable URLs for classrooms and puzzle communities.
Profiled list and map screens, reduced unnecessary re-renders, deferred heavy work off the UI thread, and documented a short “performance budget” for future features.
A growing collection on this site — shareable links for collaborators and clients.
Cipher decoders
Encode & decode symbol ciphers in the browser.
Expo Icon Generator
App icons for Expo / React Native projects.
Email Extractor
Extract emails from pasted text quickly.
CEH (2023) and eJPT — listed for reference; verification on request.