hello@mazharsiddiqi.com

SENIOR PROJECT DELIVERY

Custom software development.

Mobile apps, web applications, SaaS products, and the backend systems underneath them. Built to your specification and handed over as code your team can maintain.

WHAT THIS COVERS

What custom development actually means.

Custom development is the right answer when the thing you need does not exist as a product you can configure: a marketplace with unusual matching logic, a mobile app with offline behaviour, a SaaS platform with a permissions model, or an integration between systems that were never designed to talk.

It is also the wrong answer more often than development companies admit. If Shopify or a platform will do the job better and cheaper, I will say that before quoting. Everything below is work I do personally. There is no delivery team behind me and no account manager between us.

“The right build is the one your team can run after I step away.”

The operating principle

SERVICES

What I build.

From a focused feature to the full product underneath it, every engagement is scoped around the work that genuinely needs custom code.

01

Mobile app development

Native and cross-platform applications built from one codebase for iOS and Android.

02

Web application development

Dashboards, marketplaces, portals, internal tools, and products that are more application than website.

03

UI/UX design

Interface and product experience design carried through into the built product, not handed over as a file.

04

SaaS development

Multi-tenant architecture, billing, permissions, admin tooling, and the systems a SaaS needs before it can charge.

05

MVP development

A working first version built quickly without shortcuts that make version two unnecessarily expensive.

06

Backend development

APIs, databases, business logic, jobs, and integrations. It is the work users never see and every product depends on.

07

API development

REST APIs, webhooks, third-party integrations, and connections between systems that do not communicate natively.

08

Frontend development

Component architecture, state management, performance work, and maintainable interfaces for new or existing apps.

09

Code audit & refactoring

A direct assessment of an inherited codebase: what is salvageable, what is not, and the honest cost either way.

HOW I WORK

How a build runs.

01

Scope before code

You get what I would build, what I would question, and what I would cut before you commit to anything.

02

Fixed price, agreed upfront

You know the number before work starts. Any scope change is repriced before the work happens.

03

Inside your infrastructure

Your repo, branching strategy, review process, and project board. If they are not in place, I set them up in your name.

04

Visible progress

Commits you can watch, not status emails you have to trust. Decisions are raised when they matter.

05

Handed over clean

Documentation, conventional patterns, and no dependency on knowledge only I have.

THE STACK

What I build with.

I work in one ecosystem deeply rather than claiming twenty languages badly. Everything below is production experience, not a course certificate.

Frontend

Fast, maintainable interfaces for products that need to feel clear from the first click.

  • React
  • Next.js
  • TypeScript
  • Tailwind CSS
  • Component architecture
  • State management

Mobile

One practical codebase for iOS and Android, with native capability where it genuinely matters.

  • React Native
  • Expo
  • TypeScript
  • Navigation
  • Native device APIs
  • Push notifications

Backend

The business logic, authentication, jobs, and services that keep the product dependable.

  • Node.js
  • NestJS
  • Express
  • Authentication
  • Background jobs
  • Error handling

Database

Data models designed around the way the product actually needs to work and grow.

  • PostgreSQL
  • MongoDB
  • Data modelling
  • Migrations
  • Query performance
  • Access control

Integration

Reliable connections between the services your product needs to use together.

  • REST APIs
  • Webhooks
  • OAuth
  • Payment services
  • Third-party APIs
  • Event flows

Delivery

A build process your team can see, review, deploy, and take over with confidence.

  • Git
  • CI/CD
  • Automated testing
  • Code review
  • Deployment
  • Documentation

If your project needs something outside this stack, I will tell you during scoping rather than learning on your budget.

WHY PROJECT-BASED

Why bring in a developer per project.

Development demand for agencies and small teams is intermittent. A permanent salary is not. Project-based capacity exists when the work does, then releases cleanly when it ships.

Compared byPermanent hireProject-based delivery
Capacity when work arrivesDependent on hiring and onboardingAvailable for the defined build
Cost in a quiet monthSalary, benefits, and overhead continueNo idle cost between projects
Seniority you can accessConstrained by permanent budgetSenior delivery for the engagement
End of the projectCapacity still needs utilisationClean handover, then capacity releases
For an eight-week project, the senior developer you can bring in is often not the same developer you can justify employing permanently.

COMMON QUESTIONS

Clear before the first commit.

The important commercial and technical expectations are agreed before work begins.

Can you work in an existing codebase?

Yes. Most of my work is inside code someone else wrote. I match the existing conventions rather than imposing new ones.

Do you do fixed price or hourly?

Fixed price on an agreed scope. Scope changes are repriced before the work happens, never after.

How long does a typical project take?

A focused MVP is usually six to twelve weeks. A defined feature build is often two to four. You get a real estimate after I see the requirements.

What if the scope changes?

We agree a revised price before the work happens. You will not receive an invoice you were not expecting.

Who owns the code?

You do, entirely, on final payment, including work written outside the original scope.

Do you provide ongoing maintenance?

I step away at handover by design. If something later needs changing, it becomes a new focused project.

Can you work with our existing developers?

Yes. I follow your review process and defer to the technical lead on decisions that outlive my involvement.

What if the project does not need custom development?

I will tell you, and point you at the platform that does it better. That conversation occasionally costs me a project and saves clients much more.

Have a build that needs a senior developer?

Send the scope and deadline. You will get an honest assessment of fit, a fixed price, and a realistic timeline.

Fixed-scope pricingYour repo & processClean handover