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Hi, I'm Ahtsham.

I build telehealth and SaaS products, from the database to the video call.

I work in React and Next.js on the front end, with Node.js and TypeScript on the server. At D.Dynamics I build healthcare apps where a patient books a slot, pays through Stripe and meets their doctor on a video call, and each role sees only what it should.

See my work

Open to full-time roles and freelance projects

Portrait of Ahtsham Ul Haq

Ahtsham Ul Haq

Full-Stack Developer at D.DynamicsBefore that, CodeCoy Technologies and IT GENICS.

Experience building real software.

A record of the roles behind the work — what I owned, what I built, and the systems each role ran on.

Working across the stack on healthcare products — from role-scoped APIs and authentication through to the real-time and video features used during appointments.

  • Building full-stack features for multi-role healthcare platforms with role-based access control across Patient, Doctor, Clinic and Admin user types.
  • Implementing real-time chat using Socket.io with per-appointment rooms, file sharing, typing indicators and persistent message history in MongoDB.
  • Integrating the Agora RTC SDK for live video consultations with mic, camera and screen share controls.
  • Working on Stripe payment workflows including checkout sessions, webhook handling and refund processing.
  • Designing REST APIs and integrating them with React frontends using TanStack React Query and Redux Toolkit.
  • Implementing JWT authentication with HTTP-only cookies, email verification and password reset flows.
  • Participating in code reviews, debugging and performance optimization across both frontend and backend.
  • Next.js
  • React
  • Node.js
  • Express.js
  • MongoDB
  • Socket.io
  • Agora RTC
  • Stripe

Education

  • BS in Information Technology, University of Education, Lahore

    Nov 2019 — May 2023

The work, day by day.

Synced from GitHub — the day-to-day record behind the work.

Projects built for real-world problems.

A small number of projects, explained properly — the problem, the architecture behind the solution, and the parts that were genuinely hard.

Telehealth Psychiatry Platform

Zentromind Health

Production telehealth platform for a psychiatry practice, with patient, doctor and admin portals for secure booking, video consultations and clinical documentation.

  • Next.js
  • Express.js
  • Bun
  • PostgreSQL
  • Prisma ORM
  • Redis
zentromindhealth.comRead case study

Corporate Mental Health SaaS

Clínora Psi

B2B mental health platform connecting companies, employees and therapists, which I took from local development to a self-hosted production deployment with an automated CI/CD pipeline.

  • Docker
  • GitHub Actions
  • Nginx
  • Next.js
  • Bun
  • PostgreSQL
clinorapsi.aoRead case study

Veterinary Telemedicine Platform

Vetzi

Telemedicine platform connecting pet owners with licensed veterinarians through online appointments and video consultations.

  • Next.js
  • Node.js
  • Express.js
  • MongoDB
  • Prisma ORM
  • Socket.io
myvetzi.comRead case study

Healthcare Management Platform

Health Direct

Multi-role healthcare platform with isolated dashboards for patients, doctors, clinics and admins, plus a structured medical records module.

  • Next.js
  • TypeScript
  • Node.js
  • Express.js
  • MongoDB
  • Socket.io
healthdirect.ieRead case study

The tools behind the products.

The stack I reach for, and what each part is actually responsible for in a running system.

Frontend

Interfaces, state and rendering

  • ReactFrontend UI
  • Next.jsReact Framework
  • TypeScriptType Safety
  • JavaScriptCore Language
  • Redux ToolkitGlobal State
  • TanStack QueryServer State
  • Tailwind CSSStyling System
  • Shadcn UIComponent Library

Backend

Services, APIs and realtime

  • Node.jsBackend Runtime
  • Express.jsHTTP Framework
  • Hono.jsLightweight HTTP Framework
  • PythonBackend Language
  • FastAPIPython API Framework
  • REST APIsService Contracts
  • Socket.ioRealtime Transport

Databases

Schemas, queries and persistence

  • MongoDBDocument Database
  • PostgreSQLRelational Database
  • MySQLRelational Database
  • Prisma ORMType-Safe ORM
  • MongooseMongoDB ODM
  • RedisCache & Queues

Integrations

Payments, media and authentication

  • StripePayments
  • PayPalPayments
  • AWS S3Object Storage
  • Agora RTCRealtime Audio & Video
  • JWTToken Authentication
  • NodemailerTransactional Email
  • TwilioMessaging & Voice

Deployment & DevOps

Pipelines, containers and hosting

  • GitHub ActionsCI/CD Pipelines
  • DockerContainerization
  • AWSCloud Hosting & Pipelines
  • VercelFrontend Hosting
  • RenderService Hosting
  • NginxReverse Proxy & TLS
  • Ubuntu ServerSelf-Hosted VPS
  • Let's EncryptSSL Certificates

Tools & Other

Tooling, builds and background work

  • GitVersion Control
  • GitHubCode Hosting
  • PostmanAPI Testing
  • BunRuntime & Package Manager
  • TurborepoMonorepo Builds
  • BullMQBackground Jobs
  • ZodSchema Validation

From idea to production.

The same four stages whether it's a new SaaS product or a feature inside an existing platform.

  1. 01

    Understand

    Understand the product, users, and requirements.

    • Scope and constraints
    • User and business needs
    • Success criteria
  2. 02

    Architect

    Plan the architecture, data model, and system boundaries.

    • Data model
    • API contracts
    • Service boundaries
  3. 03

    Build

    Develop maintainable frontend and backend systems.

    • Typed end to end
    • Reviewable increments
    • Documented interfaces
  4. 04

    Ship

    Test, deploy, monitor, and improve.

    • CI/CD pipeline
    • Environment parity
    • Monitoring and iteration

What I can help you build.

Whether it's a product from scratch or an existing system that needs to hold up, these are the areas I work in.

  • SaaS & Multi-Role Platforms

    Products where several user types share one system — separate portals, role-based permissions and an admin surface behind them.

    Next.js, Node.js, PostgreSQL

  • Real-Time Chat & Video

    Socket.io messaging with rooms, typing indicators and persistent history, and Agora video calls with mic, camera and screen share.

    Socket.io, Agora RTC, WebRTC

  • React / Next.js Applications

    Typed, responsive interfaces with predictable data fetching through TanStack Query and Redux Toolkit.

    React, Next.js, TypeScript

  • Node.js Backend Systems

    Express and Hono services structured into routes, handlers, services and validators, so features stay easy to extend.

    Node.js, Express.js, Hono.js

  • REST APIs & Integrations

    Versioned endpoints with validated inputs, plus integrations with the third-party services a product depends on.

    REST, Webhooks, Zod

  • Database Architecture

    Relational and document data models with Prisma or Mongoose, designed around how the application actually reads.

    PostgreSQL, MongoDB, Prisma

  • Authentication & Authorization

    JWT and session auth over HTTP-only cookies, email verification, two-factor, password reset and role-based access control.

    JWT, Sessions, RBAC

  • Payment Integrations

    Checkout, marketplace revenue splits and refunds driven by webhooks, so your records match the payment provider's.

    Stripe, PayPal, Webhooks

  • Deployment & CI/CD

    Dockerised releases shipped by GitHub Actions pipelines to AWS, Vercel, Render or a hardened self-hosted server behind Nginx and TLS.

    Docker, GitHub Actions, AWS

Have a product worth building?

Let's turn the idea into a reliable product.

Email me