I help startups, founders, and businesses design and build AI-powered SaaS products, intelligent chatbots, scalable MVPs, and automation systems using OpenAI, Claude and modern full stack technologies.
Most businesses today donโt just need a website or basic application they need smart, scalable systems that can automate work, handle users efficiently, integrate AI features, and support long-term growth. Thatโs exactly the type of product I build.
From early-stage startup ideas to production-ready SaaS platforms, I focus on turning concepts into working applications that are fast, reliable, and built with clean architecture.
Whether you are launching a new SaaS product, building an AI startup, automating internal workflows, or upgrading an existing system with AI features, I can help you design and develop the complete solution.
๐ง What I Can Build for You
I work across the full development lifecycle from planning to deployment.
โ AI Chatbots (Customer Support, Sales, AI Assistants)
โ OpenAI / Claude API Integrations
โ SaaS MVP Development for Startups
โ Full Stack Web Applications (Frontend + Backend)
โ AI Automation Systems & Workflow Tools
โ Multi-user SaaS Platforms (Subscription-based systems)
โ Custom Dashboards & Admin Panels
โ API Development & Third-Party Integrations
โ Stripe Payments, Billing & Subscription Models
โ CRM Systems & Internal Business Tools
โ Real-time Applications (Chat, Live Data, Dashboards)
โ Scalable Backend Architecture & Database Design
โ AI-powered tools (content generation, analysis, automation)
โ LLM Training, Fine-tuning & Model Optimization
โ Data Annotation & Dataset Preparation for AI Models
๐ญ Industries I Work With
I build solutions across multiple industries where automation and AI create real impact:
โข SaaS Startups & Tech Companies
โข E-commerce & Online Stores
โข Real Estate Platforms
โข Healthcare & Appointment Systems
โข Fintech & Financial Applications
โข Education & E-learning Platforms
โข Marketing Agencies & Automation Firms
โข Service-based Businesses
โข AI Product Startups
๐ง How I Approach Projects
Every project is built with a product mindset, not just coding.
I focus on:
โ Understanding the business use case clearly
โ Designing scalable system architecture
โ Building fast and responsive user interfaces
โ Creating secure and optimized backend systems
โ Integrating AI in a practical, usable way
โ Ensuring the product is ready for real users
The goal is always to build something that not only works, but can also scale as the business grows.
๐ Tech Stack
Frontend: React.js, Next.js, TypeScript, Tailwind CSS
Backend: Node.js, Express.js, NestJS
AI: OpenAI & Claude API, LangChain, AI Agents, Vector Databases
Database: PostgreSQL, MongoDB, Supabase, Firebase
Automation: n8n, Zapier
Cloud & DevOps: AWS, Vercel, Docker, GitHub Actions
๐ Types of Projects I Commonly Work On
โข AI SaaS platforms with subscription systems
โข Startup MVPs for early-stage founders
โข AI chatbot systems for customer support and sales
โข Workflow automation tools for businesses
โข Internal dashboards and admin systems
โข AI-powered web applications
โข Multi-tenant SaaS architectures
โข API-based backend systems
โข Real-time web apps and data-driven platforms
๐ฏ What You Can Expect
โ Clean, maintainable, and scalable code
โ Fast development cycles with clear milestones
โ Reliable communication throughout the project
โ Focus on performance and user experience
โ Production-ready deployment setup
โ Long-term thinking for scaling and upgrades
If you're looking to build an AI-powered SaaS product, launch a startup MVP, integrate OpenAI into your system, or automate business workflows with modern AI tools, I can help you turn that idea into a fully functional and scalable product.
Web Development
Python
AI Chatbot
RESTful API
React
Django
Flask
Mobile App Development
DevOps Engineering
Artificial Intelligence
Machine Learning
Natural Language Processing
Deep Learning
Full-Stack Development
Node.js
Next.js
n8n
Automation
AI Development
Sitara H.
Milton, Canada
$20/hr
5.0
5 jobs
Turning ideas into successful products, one project at a time.
๐ Hi, I'm Sitara.
A few years ago, I joined a social networking platform project that had a big vision but many moving parts. Different teams were involved, priorities kept changing, and there was always pressure to deliver more features. By bringing structure to the project, improving communication between stakeholders, and keeping everyone focused on the right priorities, we successfully delivered around 80% of the planned platform features and transformed the idea into a working product used by real users. Experiences like this are why I love what I do.
For the past 6+ years, I have been helping businesses turn ideas into reality through Project Management, Product Management support, Business Analysis, and Quality Assurance. I enjoy being part of the entire journey, from understanding business goals and defining requirements to coordinating teams and testing the final product before launch.
My approach is simple: understand the problem, create a clear plan, keep communication open, and focus on delivering quality results.
In addition to Project Management, I have 3 years of hands on experience in Quality Assurance, testing websites, mobile applications, and software products to ensure they work as expected and provide a smooth user experience.
Here's how I can help:
โข Project Management
โข Product Management Support
โข Business Analysis
โข Agile and Scrum Project Delivery
โข Quality Assurance and Manual Testing
โข Website Testing
โข Mobile App Testing
โข User Acceptance Testing (UAT)
โข Requirement Gathering and Documentation
โข Bug Tracking and Reporting
โข Jira and Trello Management
Industries I have worked with:
โข ERP Systems
โข E Commerce
โข CRM Platforms
โข Real Estate
โข Business and Finance Applications
Certifications:
โข Project Management Professional (PMP)
โข Certified Scrum Master (CSM)
โข Certified AI Project Manager
โข Microsoft Certified Developer
โข Occupational Language Training in Project Management, Humber College Toronto
When clients work with me, they are not just hiring someone to manage tasks or test software. They are working with someone who genuinely cares about the success of their product, pays attention to details, and stays committed from planning to delivery.
If you have an idea, a product that needs improvement, or a project that needs strong leadership, I'd love to help make it a success.
Jira
Beta Testing
Web Testing
Test Case Design
Project Management
Software Testing
Project Analysis
Test Development
Scrum
Agile CRM
Regression Testing
Research Papers
Agile Software Development
QA Testing
Test Results & Analysis
Irshad H.
Oakville, Canada
$25/hr
5.0
23 jobs
THINKING OUTSIDE THE BOX is where I usually start, not where I end
Hey there, Iโm Irshad Haroon, a WordPress developer, CMS developer, mobile app developer, and app developer who builds WordPress websites and delivers reliable mobile app development for real businesses. I help companies turn ideas into high performance WordPress websites, scalable CMS platforms, and smooth mobile apps through practical mobile app development without the usual stress
What I Do
โ WordPress developer: building fast and scalable WordPress websites for businesses
โ CMS developer: creating CMS platforms behind modern WordPress websites
โ Mobile app developer: handling complete mobile app development from idea to launch
โ App developer: delivering stable apps through structured mobile app development
WordPress Website and CMS Work
โ As a WordPress developer, I create clean and fast WordPress websites that scale with content
โ Every WordPress website is built by a CMS developer who plans structure and long term growth
โ WordPress websites developed with performance and usability in mind
โ CMS development focused on making every WordPress website easy to manage for teams
Mobile App Development
โ As a mobile app developer, I work on full mobile app development for startups and businesses
โ Every project follows a clear mobile app development process focused on stability
โ Cross platform apps delivered through efficient mobile app development
โ Android and iOS apps built by an app developer experienced in long term mobile app development
How I Work
As a WordPress developer and CMS developer, I start by understanding how your WordPress website will be used day to day, not just how it should look. My CMS development approach focuses on building WordPress websites that are fast, clean, and easy to manage as content grows. As a mobile app developer and app developer, I approach mobile app development with a focus on structure, performance, and reliability so the app keeps working as users grow. Whether itโs a WordPress website or full mobile app development, I keep communication clear and decisions practical
Industries Iโve Worked With
โ๏ธ Business and corporate WordPress websites
โ๏ธ CMS platforms powering content-heavy WordPress websites
โ๏ธ Startup and business mobile app development projects
โ๏ธ Custom apps built through focused mobile app development
What Makes Me Different
โ I think beyond visuals and build every WordPress website for real usage
โ I treat mobile app development as a product not just a task
โ I build WordPress websites like a CMS developer who expects growth
โ I deliver mobile app development like an app developer who wants long-term success
If your project needs someone who can mix strong engineering with a bit of product insight, I fit that lane perfectly.
A spot where I takes your project from โgood ideaโ to โdamn, that turned out nice.โ
Keywords
โข Mobile app development
โข CMS developer
โข WordPress
โข Shopify
โข development
โข performance
โข speed
โข websites
โข app
โข Flutter
โข cross-platform
โข mobile apps developer
โข webflow
โข JavaScript
โข WooCommerce
โข HTML5
โข Web Design
โข google
โข Firebase
โข Firestore
โข App development
โข cross platform mobile app
โข Flutter app
โข Android App Development
โข Android
โข iOS app
โข iOS developer
โข android developer
โข android app
Mobile App Development
App Development
CMS Development
WordPress
WordPress Website
WordPress Development
WooCommerce
Shopify
Shopify Website Design
Flutter
Ecommerce Website Development
Hybrid App Development
JavaScript
iOS Development
Android App Development
Mirza Mahraf B.
Toronto, Canada
$16/hr
5.0
3 jobs
โญโญโญโญโญ ""I am very pleased with Mirza's quick responses and early delivery of the project. The website looks very professional. He is easy to work with, kind and patient. I will certainly hire him for future projects!!"
โ Skilled WordPress, Elementor and WooCommerce developer with a robust portfolio, including dynamic eCommerce sites and responsive web apps. Proficient in HTML5, CSS, and JavaScript, PHP delivering high-quality, innovative solutions that exceed client expectations.
**See my projects**
โญ Here's what I can bring to your project โญ
โ WORDPRESS:
-Landing pages, blogs, portfolios.
-Theme customization.
-Development of responsive designs
-Seamless Integration with other plugins
-E-commerce store setup and management (WooCommerce).
โ ELEMENTOR:
-Custom Templates and Blocks
-Advanced Design Options with custom CSS
-Responsive Layouts
-Seamless Integration with other plugins
โ WOOCOMMERCE:
- Store setup with various products types including Digital, Simple, Variable Products.
- Secured Payment Integration
- Product management.
- Shipping configuration
- Inventory management
- Order processing
- Contact forms, Payment forms, Surveys & more.
โญ Why you should choose me over other freelancers โญ
โ Trustworthy Partnerships: Focused on building strong relationships based on trust, delivering exceptional value to every client.
โ Going the Extra Mile: I believe in delivering more than expected. By providing exceptional value and exceeding client expectations
โ Open Communication: I maintain clear and timely communication, fostering collaboration and transparency.
โ Problem-Solving Prowess: I tackle challenges head-on with resilience and determination, finding innovative solutions.
โ Empathy and Care: I approach every project with empathy, understanding clientโs need and goals to deliver satisfactory results.
Java
Web Development
Elementor
PHP
JavaScript
HTML
CSS
WordPress Website
WooCommerce
Web Scraping
Selenium WebDriver
Web Design
Canva
Android Studio
C
Amgad Mohammad Hanafy S.
Fredericton, Canada
$10/hr
5.0
1 jobs
Senior Java developer with 15+ years of experience, specialized in backend development, with experience in frameworks like Spring, Spring Boot, Hibernate, Maven, Junit, and hands-on experience in multiple business domains like telco, banking, retail, government, R&D, and manufacturing
Java
Hibernate
JUnit
Spring Boot
Spring MVC
Apache Maven
Jenkins
Selenium
Agile Software Development
XSL
BIRT
SWT
XML
JDBC
Socket Programming
Adil W.
Mississauga, Canada
$55/hr
5.0
29 jobs
๐๐ฎ๐๐ฎ ๐๐ฎ๐ฐ๐ธ๐ฒ๐ป๐ฑ ๐๐ฒ๐๐ฒ๐น๐ผ๐ฝ๐บ๐ฒ๐ป๐ ๐ฅ๏ธ, ๐ฆ๐ฝ๐ฟ๐ถ๐ป๐ด ๐๐ผ๐ผ๐ ๐ฑ, ๐ ๐ถ๐ฐ๐ฟ๐ผ๐๐ฒ๐ฟ๐๐ถ๐ฐ๐ฒ๐ ๐ ๏ธ, ๐๐ช๐ฆ โ๏ธ, ๐ฅ๐๐ฆ๐ง ๐๐ฃ๐๐ ๐
I help businesses build scalable, secure, and high performance backend systems that handle growth without slowing down.
Most applications work well in the beginning.
The problems start when traffic increases.
APIs become slow, deployments become risky, and maintaining the code becomes expensive.
That's where I come in.
๐๐ ๐ฎ ๐ฆ๐ฒ๐ป๐ถ๐ผ๐ฟ ๐๐ฎ๐๐ฎ ๐๐ฒ๐๐ฒ๐น๐ผ๐ฝ๐ฒ๐ฟ ๐๐ถ๐๐ต ๐ญ๐ฏ+ ๐๐ฒ๐ฎ๐ฟ๐ ๐ผ๐ณ ๐ฒ๐ ๐ฝ๐ฒ๐ฟ๐ถ๐ฒ๐ป๐ฐ๐ฒ, I've helped startups and enterprise companies design, build, and optimize backend systems that scale reliably in production.
I am not just a Java Developer who writes code.
I help businesses create backend architectures that support growth, improve performance, and reduce technical debt.
๐ฅ๐ฒ๐๐๐น๐๐ ๐'๐๐ฒ ๐๐ฒ๐น๐ถ๐๐ฒ๐ฟ๐ฒ๐ฑ
โข Built scalable Java Developer solutions serving thousands of daily users with high availability.
โข Designed Microservices architectures that reduced deployment risks and improved system reliability.
โข Developed Spring Boot applications that improved API response times and backend performance.
โข Helped businesses migrate legacy systems into modern Java Developer architectures.
โข Delivered production ready backend platforms for startups and enterprise organizations.
Every project starts with a business goal and ends with measurable results.
๐ช๐ต๐ฎ๐ ๐ ๐๐ผ
๐๐ฎ๐๐ฎ ๐๐ฒ๐๐ฒ๐น๐ผ๐ฝ๐บ๐ฒ๐ป๐
โข Custom backend application development
โข Enterprise Java solutions
โข Legacy application modernization
โข Backend performance optimization
โข Secure and maintainable architecture
๐ฆ๐ฝ๐ฟ๐ถ๐ป๐ด ๐๐ผ๐ผ๐ ๐๐ฒ๐๐ฒ๐น๐ผ๐ฝ๐บ๐ฒ๐ป๐
โข REST API development
โข Spring Security
โข Spring Data JPA
โข Authentication and authorization
โข Scalable backend services
๐ ๐ถ๐ฐ๐ฟ๐ผ๐๐ฒ๐ฟ๐๐ถ๐ฐ๐ฒ๐ ๐๐ฟ๐ฐ๐ต๐ถ๐๐ฒ๐ฐ๐๐๐ฟ๐ฒ
โข Distributed systems design
โข Service decomposition
โข API Gateway implementation
โข Event driven architecture
โข System scalability and resilience
๐๐ช๐ฆ ๐๐น๐ผ๐๐ฑ ๐ฆ๐ผ๐น๐๐๐ถ๐ผ๐ป๐
โข AWS deployment and infrastructure
โข EC2, ECS, Lambda
โข Cloud architecture design
โข Monitoring and optimization
โข Cost effective cloud operations
๐ฅ๐๐ฆ๐ง ๐๐ฃ๐ ๐๐ฒ๐๐ฒ๐น๐ผ๐ฝ๐บ๐ฒ๐ป๐
โข API design and implementation
โข Third party integrations
โข Payment gateway integration
โข Documentation and testing
โข Secure API architecture
๐ช๐ต๐ฎ๐ ๐ ๐ฎ๐ธ๐ฒ๐ ๐ ๐ฒ ๐๐ถ๐ณ๐ณ๐ฒ๐ฟ๐ฒ๐ป๐
Most Java Developers focus only on writing code.
I focus on the business impact of the software.
๐๐ฒ๐ณ๐ผ๐ฟ๐ฒ ๐ฏ๐๐ถ๐น๐ฑ๐ถ๐ป๐ด ๐ฎ๐ป๐๐๐ต๐ถ๐ป๐ด, ๐ ๐ฎ๐๐ธ:
โข Will this architecture still work when traffic grows?
โข Can future developers maintain it easily?
โข Is it secure?
โข Is it optimized for performance?
โข Can it scale without major rewrites?
This approach helps clients avoid costly problems later.
๐ช๐ต๐ผ ๐ ๐ช๐ผ๐ฟ๐ธ ๐๐ฒ๐๐ ๐ช๐ถ๐๐ต
โข Startups building new SaaS products
โข Businesses scaling existing applications
โข Companies modernizing legacy Java systems
โข Teams adopting Microservices architecture
โข Organizations migrating workloads to AWS
โข Businesses needing secure and scalable REST APIs
๐ง๐ฒ๐ฐ๐ต๐ป๐ผ๐น๐ผ๐ด๐ถ๐ฒ๐
Java, Spring Boot, Spring Security, Hibernate, JPA, Microservices, AWS, Docker, Kubernetes, REST APIs, Kafka, RabbitMQ, PostgreSQL, MySQL, MongoDB, Redis, Maven, Gradle, Git, CI/CD, Jenkins
๐ช๐ต๐ ๐๐น๐ถ๐ฒ๐ป๐๐ ๐๐ถ๐ฟ๐ฒ ๐ ๐ฒ
โข 13+ years of Java Developer experience
โข Clean, maintainable code
โข Scalable backend architecture
โข Strong communication
โข Reliable delivery
โข Long term technical thinking
If you're looking for a Java Developer who understands both software engineering and business objectives, let's discuss your project.
Send an invitation and I'll respond within a few hours.
Keywords:
Java Developer, Senior Java Developer, Java Backend Developer, Java Software Engineer, Spring Boot Developer, Spring Boot Expert, Java Application Development, Enterprise Java Developer, Java Web Services, REST API Developer, RESTful API Development, Backend Developer, Backend Engineer, Microservices Developer, Microservices Architecture, Distributed Systems, AWS Developer, AWS Cloud Engineer, Java AWS Developer, Docker, Kubernetes, Kafka, RabbitMQ, Hibernate, JPA, Spring Security, API Integration, Database Design, PostgreSQL, MySQL, MongoDB, Redis, SaaS Backend Development, Scalable Application Development, Cloud Native Applications, Java Consultant, Software Architecture, System Design, Enterprise Application Development, Performance Optimization, CI/CD, Jenkins, Maven, Gradle, Full Stack Java Developer.
Java
JUnit
Spring Boot
Core Java
Java Servlet API
Java Collections Framework
API
Microservice
Java Persistence API
Spring MVC
Spring Cloud
Spring Batch
jQuery
jMock
Git
How it works
Post a job for freePost a job
Tell us what you need. Create your own job post or generate one with AI then filter talent matches.
Hire top talent fast
Consult, interview, and hire quickly, so you can meet the freelancers you're excited about.
Collaborate easily
Use Upwork to chat or video call, share files, and track project progress right from the app.
Payment simplified
Manage payments in one place with flexible billing options. Only pay for approved work, hourly or by milestone.
Don't just take our word for it
โUpwork provides an umbrella-level of security. I can see a talentโs work history and ratings. I can hold payments in escrow. I can communicate through Upwork Messages instead of working through my email address.โ
KD
Kim Darling
Emerald Tiger
โUpwork is the best platform to hire skilled professionals when we're not looking for a full-time employee. All the companies in our portfolio use Upwork to find talent across a wide range of fields.โ
DM
David Merry
Kinetic Investments
โOur very specific requirements can be a challengeโWith Upwork, weโre able to access a bigger community to ensure the success of our projects.โ
Top interview questions to help you hire the right Java developers, faster.
How do I hire a Java Developer in Canada on Upwork?
You can hire a Java Developer in Canada on Upwork in four simple steps:
Create a job post tailored to your Java Developer project scope. We'll walk you through the process step by step.
Browse top Java Developer talent on Upwork and invite them to your project.
Once the proposals start flowing in, create a shortlist of top Java Developer profiles and interview.
Hire the right Java Developer for your project from Upwork, the world's largest work marketplace.
At Upwork, we believe talent staffing should be easy.
How much does it cost to hire a Java Developer?
Rates charged by Java Developers on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.
Why hire a Java Developer in Canada on Upwork?
As the world's work marketplace, we connect highly-skilled freelance Java Developers and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream Java Developer team you need to succeed.
Can I hire a Java Developer in Canada within 24 hours on Upwork?
Depending on availability and the quality of your job post, it's entirely possible to sign up for Upwork and receive Java Developer proposals within 24 hours of posting a job description.