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We are seeking a versatile Full-Stack Developer to manage, optimize, and scale our e-commerce presence across multiple platforms. You will be responsible for everything from custom theme development to complex backend integrations and database management. Requirements: WordPress/WooCommerce: Experience with custom hooks, child themes, and optimizing high-traffic stores. OpenCart: Deep knowledge of MVC-L architecture and extension development. Languages: Expert-level PHP, MySQL, JavaScript, and CSS/SASS. Integrations: Proven track record of connecting APIs (Payment gateways, Shipping, ERPs). Optimization: Ability to hit 90+ scores on Google PageSpeed Insights. Deliverables: Maintain existing stores and troubleshoot bugs. Develop custom features without bloat. Ensure 100% mobile responsiveness and security compliance.
Mã dự án: 40354342
224 đề xuất
Dự án từ xa
Hoạt động 2 ngày trước
Thiết lập ngân sách và thời gian
Nhận thanh toán cho công việc
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224 freelancer chào giá trung bình €20 EUR/giờ cho công việc này

Drawing on two decades of experience, including deep expertise in WordPress, WooCommerce, OpenCart and more, CnELIndia is uniquely positioned to bring value to your e-commerce presence. Whether it's optimizing high-traffic stores, customizing themes or managing complex backend integrations, we have the skills – and the track record – to deliver results efficiently and effectively. We don't just aim for satisfactory performance; we strive for perfection. Our proficiency with PHP, MySQL, JavaScript and CSS/SASS would guarantee your site's optimization on Google PageSpeed Insights with scores exceeding 90. Well-versed in connecting various APIs such as payment gateways and shipping functionalities are also a significant portion of our repertoire. Our mobile responsiveness capability showcases CnELIndia's ability to produce 100% impeccable outcomes while simultaneously ensuring security compliance. We understand the importance of maintaining your existing stores and troubleshooting bugs swiftly- all without adding bloat. With our team, you'll get proactivity as well as exceptional workmanship, fostering positive experiences for your end-users at every turn. Don't wait any longer - let us take your e-commerce game to the next level!
€15 EUR trong 40 ngày
8,9
8,9

Hi, I can help manage, optimize, and scale your online presence effectively. With extensive experience in WordPress/WooCommerce and OpenCart, I develop custom themes and optimize high-traffic stores using PHP, MySQL, JavaScript, and CSS/SASS. I’ve successfully connected various APIs including payment gateways, ensuring a seamless user experience. I aim for 90+ scores on Google PageSpeed Insights and guarantee mobile responsiveness and security compliance in all my projects. Let’s discuss how I can contribute to enhancing your e-commerce business. Best Regards, Priyanka
€12 EUR trong 40 ngày
8,4
8,4

Hello, I’ll handle development using optimized PHP/MySQL architecture, custom hooks/extensions, API integrations (payments, shipping, ERP), and performance tuning to consistently achieve 90+ PageSpeed while ensuring stability and security. I have 10+ years of experience as a full-stack developer working across WooCommerce and OpenCart with complex integrations and high-traffic optimization. Let’s connect in chat so I can review your current setup, share similar projects, and outline a reliable long-term workflow. thank you Regards Gaurav Garg
€15 EUR trong 40 ngày
8,5
8,5

Hi, I am an experienced full-stack developer, and I can manage, optimize, and scale your e-commerce sites across WordPress, WooCommerce, OpenCart, and other platforms. I will handle custom theme development, backend integrations, API connections, and database management while ensuring mobile responsiveness, high performance, security compliance, and fast loading with minimal code bloat. Please send a message so we can go through the details, decide on the timeline and deliverables. Best regards.
€15 EUR trong 10 ngày
8,5
8,5

Hi, I will handle your WooCommerce and OpenCart stores, covering bug fixes, custom feature development, and performance optimization. For PageSpeed 90+ scores, I will implement lazy loading, critical CSS inlining, and database query optimization rather than relying on caching plugins alone. Questions: 1) How many stores are we managing, and on which platforms? 2) Are there specific API integrations already in place that need maintenance? Looking forward to potentially working together. Thanks, Kamran
€15 EUR trong 40 ngày
8,2
8,2

Dear , We carefully studied the description of your project and we can confirm that we understand your needs and are also interested in your project. Our team has the necessary resources to start your project as soon as possible and complete it in a very short time. We are 25 years in this business and our technical specialists have strong experience in Website Design, WordPress, WooCommerce and other technologies relevant to your project. Please, review our profile https://www.freelancer.com/u/tangramua where you can find detailed information about our company, our portfolio, and the client's recent reviews. Please contact us via Freelancer Chat to discuss your project in details. Best regards, Sales department Tangram Canada Inc.
€22 EUR trong 5 ngày
8,6
8,6

Hello, I’m an expert WordPress designer and developer with extensive experience delivering custom themes, plugin customization, performance optimization, and fully responsive websites across multiple industries. I build scalable, secure, and SEO-friendly WordPress solutions aligned with modern UI/UX standards. My technical skill set includes HTML, CSS, JavaScript, PHP, WooCommerce customization, third-party API integrations, speed optimization, and cross-browser compatibility, ensuring high-quality and maintainable builds. I’d be happy to discuss your project requirements and how I can help bring your vision to life. ⭐Due to NDAs, links aren’t public—but once you open the chat, I’ll share live demos and walkthroughs. Note: Budget can be discussed over chat. Thanks & Regards Ranjana
€15 EUR trong 40 ngày
7,9
7,9

Hello, I can manage and optimize your WordPress/WooCommerce and OpenCart stores, including custom theme development, backend integrations, and database management. I have strong skills in PHP, MySQL, JavaScript, and CSS/SASS, and I can connect APIs for payment gateways, shipping, and ERP systems. I focus on fast, secure, and mobile-friendly solutions, maintaining high PageSpeed scores while building custom features that work efficiently. I can also troubleshoot issues and keep your stores running smoothly at all times. Best regards, Azad
€15 EUR trong 40 ngày
7,8
7,8

Hello, as a WordPress and WooCommerce full stack developer, I understand you need scalable multi platform ecommerce management and optimization. I will maintain stores fix bugs develop custom features integrate APIs and optimize performance across WordPress and OpenCart. My expertise in PHP MySQL JS and performance tuning ensures clean code high speed and secure scalable systems. Do you have staging access for safe deployment and testing? Happy to discuss how my previous project aligns with yours. ~Thanks! Ranjika
€15 EUR trong 40 ngày
7,9
7,9

★★★★★★ START NOW ★★★★★★ Message me so we talk in detail.. Yes, I can manage, optimize, and scale our e-commerce presence across multiple platforms perfectly !! I placed a bid after checking your requirements. If you want you can ask me any questions regarding your requirement. I'm interested in working on your project. And don't worry about work. First, check my work if you are happy Then pay me. Please let me know if you require any detailed information. Waiting for your reply. I hope you respond to me. Thanks Sunil
€15 EUR trong 40 ngày
7,5
7,5

Hi, Doomshell Software can support and scale your e-commerce ecosystem with strong full-stack expertise across WordPress/WooCommerce and OpenCart. Here’s how this will be handled: • Store Maintenance & Optimization: Ongoing monitoring, bug fixing, and performance tuning for stable, high-traffic stores. • Custom Development (No Bloat): Building features using clean, modular code—leveraging WooCommerce hooks, child themes, and OpenCart’s MVC-L architecture. • Advanced Integrations: Seamless API integrations with payment gateways, shipping providers, and ERP systems—ensuring reliable data flow. • Performance Optimization: Code-level improvements, asset optimization, and caching strategies to consistently achieve high PageSpeed scores (90+ target). • Responsive & Secure: Fully mobile-optimized interfaces with best practices for security, updates, and data protection. • Database & Backend Handling: Efficient MySQL structuring, query optimization, and backend scalability planning. Relevant Experience: Hands-on experience managing multi-store setups, custom plugin/module development, and complex third-party integrations across WooCommerce and OpenCart. (Portfolio available on request.) Quick questions: How many stores are currently active, and what’s the average traffic volume? Are there any existing performance or integration bottlenecks you want prioritized first? Ready to contribute as a reliable long-term development partner. Best Regards,
€17 EUR trong 40 ngày
7,7
7,7

I will manage and scale your e-commerce ecosystem by leveraging expert-level PHP and MVC-L architecture to deliver high-performance solutions across WooCommerce and OpenCart. My approach prioritizes clean, hook-based development and custom extension builds that integrate seamlessly with your APIs and ERPs while maintaining 90+ PageSpeed scores. I will ensure your stores are technically resilient, mobile-perfect, and fully optimized for high-traffic security compliance. Best Regards, Ihtsham
€15 EUR trong 40 ngày
7,1
7,1

Hi there! I'm Asma, a web developer and graphic designer with 10 years of hands-on experience helping brands stand out in crowded markets. I've worked with clients and agencies across fashion, hospitality, property, and luxury lifestyle sectors, and one thing stays constant: I'm obsessed with getting the details right. I don't just make things look pretty. I solve problems. Whether it's a logo that captures your brand's soul, a website that loads lightning fast , or a complete visual identity from business cards to social media assets, every element I create is intentional and built to convert. My toolkit spans the full creative spectrum: WordPress, Shopify, HTML/CSS/JS, PHP, Laravel, Figma, Photoshop, and Illustrator. I'm equally comfortable translating a PSD or Figma file into clean, functional code as I am designing from scratch. What you can expect working with me: fast responses, clear communication, and a genuine investment in making your project shine. I treat every client's vision like it's my own. I'd love to learn more about what you're looking for. Let's create something remarkable together. Looking forward to hearing from you!
€15 EUR trong 1 ngày
7,1
7,1

Hi, This role aligns perfectly with my experience as a full-stack eCommerce developer working across WordPress/WooCommerce and custom PHP systems. I’ve handled high-traffic WooCommerce stores, built custom plugins using hooks, and optimized performance to consistently achieve 90+ PageSpeed scores. I also have strong experience with OpenCart (MVC-L) including extension development and backend customization. What I can handle: Maintain & scale existing stores (bug fixing, performance tuning) Custom WooCommerce features (hooks, child themes, plugin dev) OpenCart module/extension development API integrations (payment, shipping, ERP sync) Database optimization (MySQL indexing, query tuning) Clean, secure, and mobile-first development Technical stack: PHP, MySQL, JavaScript, SASS/CSS, REST APIs Quick questions: What’s the current traffic/load on your stores? Any specific bottlenecks (checkout, API latency, DB queries)? Which payment/shipping/ERP systems are currently integrated? I focus on scalable architecture, clean code, and performance-first development. Available to start immediately Thanks.....
€15 EUR trong 40 ngày
7,7
7,7

Hello, I have carefully reviewed your project details and am writing this bid myself with confidence in my ability to handle your full-stack development needs across WordPress, WooCommerce, OpenCart, and other platforms. Your goal to optimize and scale e-commerce stores aligns well with my expertise. With extensive experience in PHP, MySQL, JavaScript, and CSS/SASS, I have developed custom themes, integrated complex APIs, and optimized site performance to achieve 90+ Google PageSpeed scores for high-traffic stores. I will maintain your existing platforms, troubleshoot issues, and build custom, mobile-responsive, and secure features tailored to your business needs. I propose starting with a thorough audit of current systems and planning improvements, aiming to deliver steady progress over the next few weeks. What are the most critical integrations or custom features you currently need across your e-commerce platforms? Best regards,
€26 EUR trong 20 ngày
6,8
6,8

Hi! My name is Marjan and I'm here to offer you my services as a skilled applicant with over a decade of experience working on Freelancer.com. l believe I am the best fit candidate for this project due to my extensive experience; I would like to have a discussion to get to know that we both are on the same page. Once the scope will be locked, I will start working on it right away.
€20 EUR trong 40 ngày
6,8
6,8

It seems like most of your sites are ecommerce as you need an opencart and WordPress woocommerce expert. I have been working for more than 14 yrs in these platforms. I am available to work with you. Available for unpaid test job as well to show you my command on these platforms
€15 EUR trong 40 ngày
6,7
6,7

Hello, I understand that you are looking for a Full-Stack Developer to enhance and manage your e-commerce presence across various platforms. I have extensive experience in WordPress, WooCommerce, OpenCart, and other platforms, with a focus on custom theme development, backend integrations, and database management. My expertise in PHP, MySQL, JavaScript, and CSS/SASS, along with a proven track record in API integrations and optimization strategies, will ensure the successful execution of your project. I have a portfolio of successful e-commerce projects that showcase my ability to deliver high-quality, responsive, and secure solutions. I am committed to effective communication and collaboration throughout the project to meet your expectations and goals. Please find my portfolio here: https://www.freelancer.com/u/Curveballsol Best regards, Curveball Solutions
€15 EUR trong 40 ngày
6,2
6,2

Munish Gupta here full-stack developer • e-commerce expert • performance-focused • strong experience with WordPress/WooCommerce (custom hooks, child themes, high-traffic optimization) • hands-on with OpenCart (MVC-L, custom extensions, core modifications) • expert in PHP, MySQL, JavaScript, CSS/SASS what I’ll handle: • maintain and optimize existing stores (bug fixing + stability) • develop custom features without unnecessary bloat • API integrations (payments, shipping, ERP systems) • improve performance (90+ PageSpeed target) • ensure full responsiveness + security compliance approach: • clean, scalable coding practices • performance-first optimization (queries, assets, caching) • careful testing across devices and environments experience: • managed multi-platform e-commerce systems • built and optimized WooCommerce + OpenCart stores with custom logic availability: • ready to start immediately reliable for long-term maintenance, scaling, and high-performance delivery ✔️
€12 EUR trong 8 ngày
6,5
6,5

Hello! As per your project post, you’re looking for a Versatile full stack developer to manage and scale your ecommerce ecosystem across WordPress, WooCommerce, OpenCart, and other platforms with strong expertise in custom development, backend integrations, and performance optimization. The goal is to ensure your ecommerce stores run efficiently, integrate smoothly with external systems, and achieve high performance, scalability, and reliable user experience across all platforms. My focus will be on delivering a robust ecommerce development and optimization solution, featuring: custom WordPress and WooCommerce theme and plugin development using hooks and child themes, OpenCart MVC L based extension development and backend customization, API integrations with payment gateways, shipping providers and ERP systems, performance optimization to achieve 90 plus PageSpeed scores. I specialize in PHP based ecommerce platforms, multi platform store management, API integrations, and high performance optimization with focus on clean code, fast loading stores, and scalable backend systems. My focus will be on maintaining your ecommerce platforms, improving performance, and implementing custom features that support long term business growth. Let’s connect to review your current ecommerce platforms, performance challenges, and integration requirements so we can define the scope, workflow, and ongoing support structure. Best regards, Nikita Gupta
€12 EUR trong 40 ngày
6,5
6,5

Ljubljana, Slovenia
Phương thức thanh toán đã xác thực
Thành viên từ thg 5 22, 2025
₹12500-37500 INR
$250-750 USD
₹37500-75000 INR
$2-8 USD/ giờ
$150 USD
₹400000-500000 INR
$250-750 USD
$250-750 USD
₹600-900 INR
$5000-10000 USD
₹15000-30000 INR
$10-30 USD
₹12500-37500 INR
₹1500-12500 INR
₹600-1500 INR
₹1500-12500 INR
€8-30 EUR
$750-1500 USD
₹600-1500 INR
₹600-1500 INR