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James HartSenior Full Stack Developer & Web/Android/ERP/CRM/CMS/AI(ML)/Blockchain/...
Malaysia
Male
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we can contract on this site https://www.peopleperhour.com/freelance-jobs, telegram: @SrDev115 pleae let me know, my gmail is [email protected]. I hope to contact you. Dynamic and solutions-focused Senior Full Stack Developer with over 12 years of experience in delivering transformative software solutions for web, and control panel design. Expertise in PLC programming, SCADA systems, mobile, and blockchain ecosystems. Skilled in developing cross-platform mobile applications, implementing DevOps strategies, alongside advanced QA methodologies to ensure seamless functionality and reliability and and QA frameworks and creating AI/ML-driven solutions for real-time analytics and business intelligence. Demonstrates expertise in Web3 technologies, blockchain-based systems, ERP/CRM integrations, and e-commerce platforms. Known for designing scalable cloud-native architectures and driving innovation through microservices and DevOps pipelines. Proven expertise in managing Google Ads, Facebook Ads, and SEO campaigns while ensuring quality project delivery across WordPress and E-commerce platforms. Adept at collaborating with diverse teams to deliver high-performance applications that align with business goals. Recognized for strategic problem-solving, mentoring capabilities, and a passion for leveraging emerging technologies to optimize processes and enhance user experiences.

Career Highlights:

Spearheaded blockchain solutions integrating smart contracts with Web3.js for secure financial platforms.

Achieved a 35% increase in mobile engagement by developing Flutter-based cross-platform apps for enterprise and retail clients.

Designed cloud architectures on AWS and Azure, reducing operational costs by 40% and improving disaster recovery capabilities.

Built AI-driven platforms for predictive modeling and real-time analytics, boosting data processing efficiency by 60%.

Developed and deployed scalable e-commerce platforms, integrating payment gateways and live user engagement features.

Enhanced ERP/CRM workflows by implementing tailored solutions using Odoo, Zoho CRM, and SAP, automating business processes for mid-sized enterprises.

Professional Experience
CT Innovations, Senior Full Stack Developer
  • •Architected & Deployed SaaS Platform: Developed a robust, cloud-based enterprise platform using React.js, Node.js, and AWS, enabling real-time data analytics and automation, which improved client retention by 40%.
  • •Developed a full-stack e-commerce website with Python (Django) and React.
    • 03/2021 – 02/2024London, United Kingdom
  • •Designed and implemented QA automation frameworks using Selenium, Cypress, and Appium to streamline testing processes and reduce defect rates by 60%.
  • •Managed Bitrix box version projects, performing technical support and feature customization.
  • •Managed Google Ads and Facebook Ads campaigns, achieving optimized ROI through data-driven insights and recommendations.
  • •Implemented comprehensive SEO strategies to boost search engine visibility.
  • •Integrated eCommerce systems such as Shopify, WooCommerce, and Magento, optimizing for sales conversion and secure payment processing.
  • •Microservices Implementation: Designed a microservices architecture with Kubernetes and Docker, ensuring scalability, high availability, and modularity, reducing downtime by 35%.
  • •Web3 Integration & Blockchain Solutions: Designed and deployed blockchain applications using Solidity, Web3.js, and Ethereum smart contracts to enable secure financial transactions and NFT marketplaces.
  • •Mobile Development: Built Flutter-based mobile apps integrated with blockchain wallets like Metamask, improving user interaction by 40%.
  • •Led the design, development, and deployment of several cross-platform mobile applications using Flutter, Dart, and Kotlin, delivering high-quality, scalable solutions.
  • •Cloud Infrastructure Management: Architected cloud-native solutions using AWS (EC2, S3, Lambda) and Kubernetes, ensuring scalability and high availability.
  • •AI-Driven Analytics: Implemented machine learning models for customer behavior prediction, leading to a 25% improvement in retention rates.
  • •DevOps Automation: Automated CI/CD workflows with Jenkins and Terraform, cutting deployment times by 50% and ensuring seamless updates.
  • •Integrated SCADA systems for real-time data acquisition, visualization, and remote monitoring, reducing manual interventions and improving response time by 30%.
  • •Directed a team of 5 engineers and technicians, ensuring smooth project execution, on-time delivery, and adherence to safety protocols and industry standards.
    • TechSphere Solutions, Full Stack Developer
  • •Built Web3 applications and integrated Ethereum-based smart contracts into financial platforms, ensuring secure and transparent transactions.
  • •Built and executed automated test suites for web applications using Python’s Pytest and Selenium WebDriver, reducing manual testing efforts by 70%.
    • 01/2019 – 02/2021Manchester, United Kingdom
  • •Developed and maintained AI-driven web applications using Python, Django, and Flask, providing real-time analytics and data visualization.
  • •Developed and maintained Android applications using Kotlin and collaborated on Flutter-based apps for both Android and iOS.
  • •Developed HTML5-based web games using Phaser.js and WebGL, with a focus on performance optimization and cross-platform compatibility.
  • •Implemented and optimized Bitrix-based intranet for a multinational company.
  • •Resolved performance bottlenecks and integrated third-party services.
  • •Designed and implemented NFT-based web games on Ethereum, allowing players to trade in-game items on a blockchain marketplace.
  • •Customized ERP and CRM platforms such as Salesforce and Zoho CRM and Microsoft Dynamics, enhancing business automation and sales management workflows.
  • •Led DevOps automation projects, utilizing Docker, Kubernetes, and Jenkins to streamline development and deployment.
  • •Coordinated cross-functional teams (SEO, Content, Analytics, Development) to ensure quality deliverables within project timelines.
  • •Organized feature requests, prioritized sprint tasks, and managed project progress with tools like Trello or Jira.
  • •Delivered high-quality eCommerce solutions using Shopify and WordPress, integrating custom plugins and payment gateways for seamless customer experiences.
  • •AI-Powered Analytics Tools: Built predictive models using TensorFlow and PyTorch, reducing data analysis time by 60% and improving accuracy for business forecasts.
    • InnovateTech Solutions, Junior Full Stack Developer
  • •Assisted in full-stack development with Node.js, PHP, and JavaScript, contributing to front-end and back-end development of web platforms.
  • •Gained foundational experience in mobile development, learning Kotlin, Flutter, Java, and using Android Studio for app development.
    • 10/2014 – 12/2018
  • •Assisted in QA testing for Java-based enterprise tools, using JUnit for unit testing and Selenium for browser-based testing.
  • •Automated QA workflows using tools like Jenkins, enhancing build and test cycles.
  • •Worked on Java Swing desktop applications for internal data processing and automation, enhancing user interfaces and workflows for enterprise clients.
  • •Assisted in developing 2D browser-based games using HTML5 Canvas and JavaScript, learning key techniques in game physics, rendering, and animation.
  • •Gained hands-on experience with Phaser.js for developing interactive games with real-time game mechanics and event handling.
  • •Contributed to ERP system integrations, improving business management and operations for small to medium enterprises.
  • •Integrated ERP solutions using Odoo and Zoho CRM, streamlining business operations for clients in the logistics and retail sectors.
  • •Supported the development and deployment of PLC automation systems, working with Siemens S7 for manufacturing clients.
  • •Conducted troubleshooting and optimization for existing PLC systems, achieving a 20% reduction in maintenance costs.
  • •Contributed to the integration of PLCs with SCADA systems for data acquisition and system monitoring.
    • Awards
    Blockchain Innovation Award, CT Innovations, 2023: For designing scalable blockchain ecosystems.
    2023
    Best Mobile App Developer Award

    CT Innovations, 2021: Recognized for outstanding contributions to the development of a flagship mobile app, praised for innovation and seamless integration of Flutter into the existing development pipeline, leading to increased user engagement and positive feedback.

    2021
    Employee of the Year, TechSphere Solutions, 2020: For delivering impactful AI and DevOps solutions.
    2020
    Top Developer of the Year, InnovateTech Systems, 2017: Recognized for ERP and CRM system development excellence.
    2017
    Hackathon Winner, University of Malaya, 2013: Built a real-time analytics app prototype.
    2013
    Skills
    Full Stack Development
    • •Languages: PHP, Ruby, Python, Java, JavaScript (Node.js, TypeScript), Kotlin, Go
    • •Frontend Frameworks: React.js, Vue.js, Angular.js, HTML5, CSS3, Tailwind CSS, Bootstrap
    • •Backend Frameworks: Laravel, Ruby on Rails, Django, Flask, Spring Boot, Express.js, FastAPI, Grails
    • •Game Development: HTML5 Canvas, Phaser.js, Three.js, Babylon.js, WebGL
    • •Game Physics & Mechanics: 2D/3D physics engines (Matter.js, Cannon.js), Animation & Interaction Development
    • •Database Management: MySQL, PostgreSQL, MongoDB, Redis, SQLite, SQL Server
    • •API Development: RESTful APIs, GraphQL, SOAP
    • •Version Control: Git, GitHub, GitLab, Bitbucket
    • •Containerization & Orchestration: Docker, Kubernetes, Docker Swarm
    • •Cloud Services: AWS (EC2, S3, Lambda), Microsoft Azure, Google Cloud Platform (GCP)
    Marketing & eCommerce Platforms

    Platforms: Bitrix, WordPress, Shopify, WooCommerce, Magento, OpenCart, PrestaShop,Symfony(Twing)

    Marketing Tools: Google Analytics, SEMrush, Ahrefs, Moz, HubSpot, MailChimp

    SEO & SEM: On-page SEO, Off-page SEO, Link Building, Google AdWords

    Custom Features: Payment Gateway Integration (PayPal, Stripe), Shopping Carts, Multi-language, Multi-currency

    CMS: WordPress, Drupal, Joomla

    Mobile & Android Development
    • •Languages: Java, Kotlin, Swift (for cross-platform understanding), Dart (Flutter)
    • •Frameworks: Android SDK, Jetpack Compose, Firebase, Retrofit
    • •Cross-platform Tools: React Native, Flutter
    • •Mobile APIs: Google Play Services, In-App Billing, Notifications, Firebase Realtime Database
    Special Skills
    PLC Automation & Industrial Systems
    • •PLC Programming: Siemens S7, Allen-Bradley, Rockwell Automation
    • •Languages: Ladder Logic, Structured Text (ST), Function Block Diagram (FBD)
    • •SCADA Systems: Wonderware, WinCC, Ignition
    • •Automation Protocols: Modbus, OPC-UA, Profibus, EtherNet/IP
    • •Industrial Networks: Profinet, Ethernet/IP, CAN Bus
    ERP & CRM Systems
    • •Platforms: Odoo, SAP, Microsoft Dynamics, Zoho CRM (Customization & API Integration), NetSuite, Salesforce,Spryker
    • •Modules: CRM, Finance, Inventory, Human Resources, Sales, Manufacturing
    • •Customizations: Workflow automation, third-party API integrations, and process optimization
    DevOps & Cloud Automation
    • •Tools: Docker, Kubernetes, Jenkins, GitLab CI, Ansible, Terraform, Vagrant
    • •Cloud Platforms: AWS (EC2, S3, RDS, Lambda), Azure (App Services, DevOps), Google Cloud (Compute Engine, GKE)
    • •CI/CD Pipelines: Jenkins, GitLab CI, CircleCI
    • •Monitoring & Logging: Prometheus, Grafana, ELK Stack
    Blockchain & Web3
    • •Blockchain Development: Solidity, Hyperledger, Rust, Go, Web3.js
    • •Platforms: Ethereum, Binance Smart Chain, Hyperledger Fabric
    • •Smart Contracts: Solidity, Remix, Truffle, Hardhat
    • •Decentralized Applications (DApps): IPFS, Metamask Integration, Ethers.js
    • •NFT and Token Development: ERC-20, ERC-721, ERC-1155
    QA Automation
    • •Tools: Selenium, Cypress, Playwright, Appium, TestNG, JUnit, Postman
    • •Testing Types: Functional, Regression, Load, API, Cross-Browser Testing
    • •Performance Testing: JMeter, LoadRunner
    • •Version Control: Git, GitLab, Bitbucket
    Artificial Intelligence & Machine Learning
    • •Languages & Libraries: Python (TensorFlow, Keras, PyTorch, scikit-learn), R
    • •Algorithms: NLP, Computer Vision, Predictive Modeling, Neural Networks
    • •Frameworks & Tools: TensorFlow, PyTorch, Keras, OpenCV, NLTK, Pandas, NumPy
    • •AI/ML Cloud Services: Google AI, AWS SageMaker, Microsoft Azure ML
    Languages
    English