Product Engineer

Building AI-powered products for ambitious startups.

I build AI-native applications, automation systems, and scalable platforms using modern full-stack engineering and system design.

4+ Years

Building production-grade software systems

AI + Full-Stack

LLMs, automation, and scalable backend engineering

Startup Ready

Remote collaboration with fast-moving product teams

Technical & Notes

Professional Overview

How I think about engineering, product systems, and the kind of value I bring to teams.

I'm Zisanur Haque, an AI Product Engineer focused on building intelligent applications, automation systems, and scalable platforms. Over the past 4+ years, I've worked across SaaS products, marketplaces, CMS platforms, and real-time systems for international teams and startups.

My work combines product engineering, backend architecture, and modern AI workflows to create systems that are fast, reliable, and built for long-term scalability. I enjoy translating complex product ideas into clean technical solutions that users can actually rely on.

I care deeply about system design, developer experience, and building products that balance speed, maintainability, and real-world business needs. Whether it's AI integrations, scalable APIs, or automation-driven workflows, I focus on shipping production-ready software with strong engineering foundations.

I also share engineering insights and technical write-ups in my blog.

Highlights

  • 4+ years building production-grade products
  • AI-native applications, automation systems, and scalable platforms
  • Full-stack engineering with Next.js, Python, FastAPI, and PostgreSQL
  • Remote collaboration across global startup and product teams

Career Highlights

Roles, products, and engineering responsibilities that shaped how I build systems today.

UI/UX Web Developer

Linksol LTD. • London, United Kingdom (Remote | Full-Time)

Dec, 2024 - Present(1 Year 9 Months)
  • Designed and built a scalable drag and drop CMS platform supporting multi service businesses beyond eCommerce, focusing on modularity, performance, and maintainability
  • Collaborated with backend engineers and product managers to architect seamless API integrations, ensuring reliable data flow and system scalability.
  • Defined information architecture and database schemas, enabling smooth technical handoffs and reducing backend iteration time.
  • Contributed to DevOps and CI/CD pipelines using Azure DevOps, improving release efficiency and platform reliability.
  • Delivered a user friendly, production ready CMS empowering businesses to launch and manage digital services rapidly.

Fullstack Developer

Partner Union • London, United Kingdom (Remote | Full-Time)

Sep, 2023 - May, 2025(1 Year 9 Months)
  • Engineered a high performance, secure web platform combining robust backend services with dynamic, responsive frontend interfaces.
  • Implemented real time data updates and AI driven features via OpenAI API to enhance interactivity and application capabilities.
  • Designed and managed flexible, scalable database schemas ensuring efficient data handling and long term platform growth.
  • Delivered a production ready system blending backend reliability, frontend usability, and business critical performance.

Web Application Developer

Athena Analytics Limited • London, United Kingdom (Remote | Full-Time)

Apr, 2023 - Feb, 2024(11 Months)
  • Contributed to the design and development of scalable, data driven web platforms delivering engaging business insights.
  • Collaborated with cross functional teams to architect responsive interfaces that balance performance, usability, and maintainability.
  • Optimized applications for speed, reliability, and scalability across devices and environments.
  • Implemented clean, reusable code and well documented systems, supporting long term platform evolution.
  • Researched and adopted emerging technologies to enhance platform capabilities and user experience.

React Developer

Mindable • Alberta, Canada (Remote | Contractual)

Sep, 2022 - Jan, 2023(5 Months)
  • Designed and delivered a scalable, multi-step quiz platform optimized for high-traffic online campaigns and responsive user experiences.
  • Integrated secure backend APIs to enable seamless data exchange and reliable system performance.
  • Implemented tracking and analytics via Google Analytics and Tag Manager to support data-driven decisions and performance insights.
  • Deployed and maintained the platform on production servers, ensuring reliability, scalability, and smooth end-to-end operation.
  • Expanded expertise across the full development lifecycle, bridging frontend engineering, backend integration, and deployment.

Web Developer

XpertOpt • Rangpur, Bangladesh (Onsite | Internship)

Jul, 2022 - Sep, 2022(3 Months)
  • Delivered two production-ready websites designed for scalability, responsiveness, and optimized digital presence.
  • Developed SEO-friendly, maintainable solutions using modern frontend frameworks, ensuring long-term system reliability.
  • Built fast, user-centric interfaces that enhanced client engagement and overall platform performance.
  • Applied best practices in architecture and development workflows to streamline deployment and maintenance.

Technical Skills

Technologies, systems, and AI-focused tools I use to build modern digital products.

AI Engineering

LLM ApplicationsAI WorkflowsAutomation SystemsPrompt EngineeringAI IntegrationsRAG Architecture

Product Engineering

Next.jsReactTypeScriptTailwind CSSShadcn/UIRedux

Backend Systems

PythonDjangoFastAPIREST APIsWebSocketsCeleryRabbitMQMicroservicesPostgreSQLMongoDBRedisSQLiteDatabase Optimization

Cloud, DevOps & Observability

DockerAzureAzure DevOpsGitHub ActionsCI/CDAWSPrometheusGrafanaK6LinuxMonitoring & Performance Testing

Others

GitCode ReviewsRemote CollaborationAgile Product Teams

Featured Projects

A selection of products, platforms, and systems I've designed and built.

IntroZen BI project preview
In Development
Data EngineeringETL

IntroZen BI

Data Integration, ETL & Business Intelligence Platform

Used 18 Technologies

A data platform for connecting data sources, building ETL pipelines, processing and preparing datasets, and turning structured data into interactive tables and visualizations.

View case study
Gazior Ops project preview
In Development
Product EngineeringBusiness Operations

Gazior Ops

Internal Business Operations Platform

Used 6 Technologies

An internal operational platform built for Gazior to manage, monitor, and analyze its online activity, customer operations, acquisition, workflows, and business data from a centralized workspace.

Professional work · Gazior

View case study
Real-Time Social Platform project preview
In Development
Full-Stack EngineeringReal-Time Systems

Real-Time Social Platform

Full-Stack Social Networking & Real-Time Interaction System

Used 14 Technologies

A full-stack social networking platform supporting user relationships, posts, comments, reactions, privacy controls, notifications, activity presence, and real-time interactions.

View case study
Visual CMS Platform project preview
In Development
Product EngineeringCMS

Visual CMS Platform

Flexible Drag-and-Drop Content & Commerce Platform

A flexible CMS platform being built for Linksol, enabling users to create and manage digital experiences through a visual drag-and-drop interface with configurable content and layout components.

Professional work · Linksol

View case study

Credentials

Certifications and structured learning that support my growth across backend engineering, architecture, automation, and modern product development.

Software Engineering Specialization

Organization: Coursera - The Hong Kong University of Science and Technology

Issued: July, 2024

View credential
Software TestingSoftware DesignObject Oriented DesignSystems DesignSoftware Design PatternsUnified Modeling LanguageRequirements AnalysisSoftware ArchitectureSoftware Development Life Cycle

Building AI Products or Scalable Systems?

I collaborate with startups and product teams building AI-native applications, automation systems, and scalable digital platforms.

I work with startups and product teams that care about strong engineering, fast execution, and scalable product architecture. Whether you're building AI-powered workflows, modern SaaS platforms, or automation driven systems, I enjoy turning product ideas into reliable production ready software.

Schedule a CallLet's Connect

Prefer async communication? LinkedIn works well for introductions, opportunities, and engineering conversations. I'm especially interested in remote product teams where I can help build reliable, scalable systems with meaningful user impact.