Portfolio · Confidential

Pawan Saini

Full-Stack Developer & Team Lead

3.8+ years building real-time web, mobile, and desktop products across fintech, HR, healthcare, and retail. Currently leading a small development team — owning technical direction, code reviews, and delivery across concurrent client projects with ~99% production uptime.

01 Experience

Full Stack Developer & Team Lead

Oct 2023 — Present

Artistonk Media Solutions · Noida, India

  • Lead and mentor a small team of developers — code reviews, sprint planning, and technical guidance across multiple concurrent client projects.
  • Built and deployed multiple MERN applications handling high traffic; optimized Express.js + MongoDB APIs, cutting average response latency by ~35%.
  • Shipped cross-platform mobile apps with React Native, extending web platforms to iOS/Android with shared business logic.
  • Automated CI/CD with GitHub Actions, cutting deployment time by 70%; implemented real-time features (live chat, task updates, notifications) with Socket.io.
  • Built secure authentication with JWT, OTP verification, biometric login, and role-based access control.

Web Developer

Oct 2022 — Jun 2023

HSI Corporate Services Pvt. Ltd · Noida, India

  • Delivered 15+ cross-browser websites with strong performance and SEO practices.
  • Co-developed a PHP-based job portal serving thousands of applicants; built A/B-tested landing pages that lifted lead capture by 72%.

02 Professional Projects

Real client and product names are withheld under company confidentiality policy — projects are described by what they do. Full details available on request.

Cross-Border Fintech & Mobile Money Platform

Remittance, wallets & mobile-money disbursements

MERNReact NativeAWS EC2 / VPC / S3Site-to-Site VPNMobile Money APIs
  • Built and hardened mobile-money disbursement flows for two major African providers — MSISDN normalization, soft-reject handling, and success/pending/error status routing for a cross-border remittance product.
  • Designed a wallet-to-wallet transfer system end to end (backend routes, Zustand store, three frontend screens) enabling real-time balance transfers between users.
  • Implemented biometric login with trusted-device management, session locking, and OTP verification for new devices.
  • Set up a Site-to-Site VPN between AWS (eu-west-2) and a payment partner's Fortinet infrastructure, including custom subnets, route tables, and VGW route propagation.

Workforce Management SaaS (HRMS)

Multi-tenant HR, project & client operations platform

MERNSocket.ioElectronFCMGoogle Meet / Calendar APIs
  • Developed a centralized platform for startups and mid-sized companies covering HR, project, and client operations — 20+ production modules across a super-admin panel and per-company client panels.
  • Implemented role-based access control with OTP verification across SuperAdmin, Admin, HR, Manager, Employee, and Intern roles.
  • Built project and task management with real-time collaboration and time tracking; attendance, leave, payroll, performance reviews, ticketing, events, and reporting.

Boutique & Salon Management SaaS

Appointments, CRM & WhatsApp marketing for salons

ReactViteTailwind CSS
  • Led a full UI/UX redesign — a consistent design system (custom tokens, unified component heights, themed cards) across calendar, dashboard, analytics, notifications, and settings.
  • Built an appointment calendar with month/week/day views, drag-and-drop rescheduling, and an integrated lead search panel.
  • Developed a WhatsApp template studio with carousel templates, dynamic variable extraction, and live phone preview.

Team Collaboration & Sprint Management Suite

Projects, sprints, chat & wiki — web and mobile

MERNReact NativeFirebaseAWS S3Generative AI
  • Building a full project-management suite — projects, sprints, tasks, labels, and templates — with team chat, DMs, and a built-in wiki, across web and a React Native mobile app.
  • Integrated AI-assisted features via a generative-AI API, plus productivity and performance analytics, global search, and reporting modules.
  • Hardened the API with Helmet, rate limiting, and Joi validation; push notifications via Firebase Cloud Messaging.

Employee Time-Tracking Desktop App

Cross-platform activity monitoring with OTA updates

ElectronNode.jsAWS S3GitHub Actions
  • Built a cross-platform (Windows/Mac) Electron app for time and activity tracking, with automated periodic screenshots and active-window/app usage logging.
  • Implemented a full OTA auto-update pipeline (electron-updater + GitHub Actions) enabling silent background updates.

Cloud EMR & Hospital Management SaaS

Patient records, appointments & integrated payments

MERNReact NativeTailwind CSSZustand
  • Designed the platform architecture and product proposal covering patient records, appointments, and billing workflows.

03 Hobby Project

Encrypted Environment-Variable Vault

Developer-first .env sync — dashboard, API & CLI

ReactExpressNode CLIWebCryptoDocker
  • Encrypted .env sync with a web dashboard, REST API, CLI, and a shared crypto package — the API stores ciphertext only; all encryption/decryption happens client-side.
  • Version-history API with encrypted snapshots on every change, bulk import, clone, and restore — production restores gated behind an explicit confirmation header.
  • Test suite covering shared encryption, RSA device-key handoff, API security responses, the bundled CLI artifact, and the production web build; Dockerized deploys.

04 Skills

Languages

JavaScript (ES6+), TypeScript

Frontend

React.js, React Native, Next.js, Zustand, Redux, Tailwind CSS, Bootstrap

Backend

Node.js, Express.js, RESTful APIs, JWT Authentication, Socket.io

Database

MongoDB, Mongoose, PostgreSQL

Tools & Platforms

Git, GitHub Actions, Docker, AWS (EC2, S3, VPC), Postman, Netlify, Render, Electron, WordPress

05 Education

MCA, Computer Applications — Chandigarh University

2024 — Present

BCA, Computer Applications — IMS, Noida

2020 — 2023

Diploma, Ethical Hacking — Indian Institute of Computer Science

2023 — 2024

Diploma, Computer Engineering — Indian Institute of Computer Science

2019 — 2022