Heaplex.
Services

Custom Engineering

Full-stack product development from concept to production. We specialize in building scalable architectures for SaaS platforms, web applications, and mobile apps—designed to grow with your business.

What we build

SaaS Platforms

Multi-tenant architectures with role-based access, scalable databases, and pricing integrations. Built from day one for growth.

Web Applications

Next.js frontends paired with robust backends. Responsive, fast, and built for real users—not just demos.

Mobile Apps

iOS and Android apps using Flutter. Single codebase, native performance, deployed to real app stores.

Backend APIs

REST and GraphQL APIs using NestJS, Node, and Go. Designed for scale, documented, and tested.

Integrations

Third-party API integrations (payment processors, SMS, email, analytics). Done securely and reliably.

Infrastructure

CI/CD pipelines, monitoring, database design, caching layers. Everything needed to run in production.

Our stack

We choose tools based on your needs, not hype. These are the technologies we know deeply.

Frontend

  • Next.js
  • React
  • TypeScript
  • Tailwind CSS
  • Framer Motion

Backend

  • NestJS
  • Node.js
  • PostgreSQL
  • Redis
  • BullMQ

Mobile & DevOps

  • Flutter
  • AWS
  • Docker
  • GitHub Actions
  • Vercel

When to engage us

Building from scratch

You have a vision but need technical execution. We'll architect and ship the whole thing.

Scaling an existing product

Your MVP works, but you need engineers to handle growth. We work with your codebase.

Technical debt payoff

Legacy systems are slowing you down. We refactor, modernize, and improve developer experience.

Need a technical team fast

Hiring engineers takes months. We can be productive within days.

Example: AcademicGrid

We built AcademicGrid from scratch—a multi-tenant SaaS platform serving schools, colleges, and universities across India and the UAE. The platform includes 4 integrated web portals (Admin, Student, Parent, Faculty), a mobile app, and a configurable engine that adapts to how each institution operates. 12-week engineering phase across 6 sprints, now live with 3+ institutions.

See AcademicGrid →

Ready to build?

Let's start with a Discovery phase to understand your needs and scope the right solution.

Start a Project