Available for freelance / contract

Cirhan Yaqoob

01 / LEAD PRODUCT ENGINEER

I Build, Architect & Scale Software Products.

I help startups and businesses turn ideas into production-ready software — from product architecture and database design to development, infrastructure and CI/CD.

Start a Project → View My Work

YEARS EXPERIENCE

20+

PRODUCTS BUILT

0→1

END-TO-END OWNERSHIP

02 / SERVICES

What I can help you build

From the first architectural decision to the production deployment.

Product Engineering

Build products from idea to production.

SaaS platformsBusiness applicationsInternal toolsMVPsCustomer-facing applications

Architecture & System Design

Design systems that are maintainable and ready to scale.

Application architectureBackend architectureAPI designAuthentication & authorizationMulti-tenant architectureScalability and performance

Backend Engineering

Build the systems behind the product.

TypeScript / Node.jsGo (Golang)PythonNestJS / ExpressREST APIsBusiness logicBackground jobsQueuesCachingIntegrations

Frontend Engineering

Build fast, polished interfaces people enjoy using.

React / Next.jsTypeScriptTailwind CSSDashboardsComplex forms & workflowsResponsive designState managementPerformance

Database Engineering

CORE OFFERING

Design data systems around real business requirements.

PostgreSQLMongoDBRedisSchema designIndexingQuery optimizationData isolationMulti-tenancyReporting

Requirements→↓ Data model→↓ Schema→↓ Indexes→↓ Fast queries

Cloud & CI/CD

Streamline the path from code to production.

CI/CD pipelinesAutomated deploymentsDockerAWSNginxCloudflareStaging / production environmentsDeployment workflowsInfrastructure optimization

AI-Powered Applications

Build useful AI capabilities into real products.

LLM integrationsAI-powered workflowsAudio transcriptionComputer VisionAI APIsIntelligent business processes

03 / SELECTED WORK

Things I've built

Real products, real systems, real problems.

01 / 06

ProgressCenter

Construction intelligence platform

A platform for monitoring construction projects through live cameras, drone footage, site galleries and AI-powered safety detection.

MY ROLE

Architecture · Backend · Frontend · Infrastructure · AI

AI Transcription — transcript editor screenshot

02 / 06

AI Transcription Platform

Transcription workflow software

A complete transcription workflow for uploading audio, generating multilingual transcripts, editing content, organizing files and exporting results.

MY ROLE

Backend · Product Engineering · Infrastructure · AI

Healthcare — appointments / queue screenshot

03 / 06

Healthcare Management System

Multi-clinic healthcare platform

A healthcare management platform covering appointments, queue management, doctors, patients and operational workflows.

MY ROLE

Architecture · Database Design · Backend · Product Engineering

04 / 06

Hizmet Food Delivery

Food delivery platform

A food delivery platform for online ordering from 200+ restaurants, making it easy to get favorite meals delivered.

MY ROLE

Product Engineering · Full Stack

05 / 06

HarisaByKilo

Online food ordering

An online platform for ordering Kashmir's delicacy, Harisa, delivered to your doorstep in five simple steps.

MY ROLE

Product Engineering · Full Stack

06 / 06

KashmirO2

Non-profit oxygen supply initiative

A non-profit initiative launched during the COVID-19 pandemic to provide essential medical oxygen to those in need.

MY ROLE

Product Engineering · Full Stack

04 / TECHNICAL PARTNERSHIP

Already have a product?

You don't always need someone to build everything from scratch. Sometimes you need someone to come in, understand the system and make it better.

Discuss Your System →

01Improve an existing architecture

02Redesign problematic database structures

03Optimize slow APIs and queries

04Improve application performance

05Set up or improve CI/CD

06Migrate infrastructure

07Add new modules / features

08Improve deployment workflows

09Review technical architecture

10Take ownership of a backend or product area

05 / PROCESS

From idea to production

Understand

Understand the business, users and requirements.

Architect

Define the system architecture, database model and technical approach.

Build

Develop the product with maintainability and performance in mind.

Ship

Set up infrastructure, CI/CD and production deployment.

Improve

Monitor, optimize and iterate as the product grows.

06 / WORKING TOGETHER

Who I work with

Startups01

Need someone to turn an idea into a working product?

Businesses02

Need custom software or internal systems to improve operations?

Founders03

Have a product idea but need a senior engineer to build it?

Agencies04

Need an experienced engineering partner to execute client projects?

07 / TECHNOLOGY

The tools behind the work

Technology is a means to solve the problem, not the product itself.

FRONTEND

React / Next.js / TypeScript / Tailwind CSS

BACKEND

TypeScript / Node.js / Go / Python / NestJS / Express

DATA

PostgreSQL / MongoDB / Redis

INFRASTRUCTURE

AWS / Docker / Nginx / Cloudflare

LLM APIs / AI Integrations / Computer Vision

08 / ABOUT

A little about me

I'm a Lead Product Engineer with 7+ years of experience building software products across the entire product lifecycle — from product requirements and database design to backend architecture, frontend development, infrastructure and production deployment.

Product EngineeringEnd-to-End OwnershipComplex Business ApplicationsArchitectureBackendFrontendInfrastructureAIProblem Solving

09 / CONTACTAvailable for freelance / contract

Have something you want to build?

Whether you're starting a new product, improving an existing system, or need a senior engineer to take ownership of your technical work — let's talk.

Start a Conversation →

EMAILkhancirhan@gmail.com ↗ LINKEDINin/khancirhan ↗ GITHUBgithub.com/khancirhan ↗