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I need a skilled PHP developer to update the backend functionality of my application. Ideal skills and experience: - Strong expertise in core PHP - Proven track record in improving backend performance - Experience with API integration, data processing, or enhancing authentication and security Please share relevant experience in your bids.
Project ID: 40451651
248 proposals
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Active 3 days ago
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248 freelancers are bidding on average £137 GBP for this job

As an experienced PHP developer, I have a deep understanding of the language and the unique demands it imposes. My skills extend beyond just writing code, as I also hold a genuine interest in enhancing backend operations. Over my 18-year career, I've accumulated an impressive track record of improving performance, integrating APIs, bolstering security and creating efficient data processing systems – all relevant to your project. My team and I at CnELIndia stay on top of industry trends and leverage these insights to churn out optimal solutions for our clients. This eagerness to learn and adapt has led to us mastering technologies and frameworks like WordPress, WooCommerce, data scraping and particularly React Native which can be beneficial for your project. Choosing me means you're electing a partner who's not just competent but invested in ensuring that your application operates at its utmost best. With hundreds of similar successful projects under our belt and a high commitment to both quality and deadline management, together we can bring your backend infrastructure up-to-date with no hassle.
£250 GBP in 7 days
9.0
9.0

Hello, Hope you are doing well, With 10+ years of experience in core PHP backend development, I’ve worked on performance optimization, REST API integrations, authentication systems, and secure server-side architectures for custom web applications across multiple industries. Please share your current PHP version, framework (if any), and the specific backend issues or enhancements required, and I’ll outline the best implementation approach and estimated timeline. thank you Regards Gaurav Garg
£135 GBP in 7 days
8.5
8.5

Hi, I can help update your PHP backend and improve performance, security, and functionality. I have strong experience in core PHP, API integration, and optimizing existing systems. Kindly share your project details and I can start right away. Looking forward to working with you Best Priyanka
£100 GBP in 2 days
8.4
8.4

Hi there, I specialize in PHP backend development with a focus on improving functionality and performance. With a solid background in core PHP, API integration, and security enhancements, I have successfully updated backend systems for various applications. Let's discuss how I can enhance your application's backend to meet your requirements. Thank you.
£150 GBP in 3 days
8.3
8.3

Hey, I will update your PHP backend — improving performance, tightening authentication, and refining any API integrations or data processing logic. I am happy to share relevant examples in our chat. One thing I will audit first is how sessions and tokens are handled. Outdated auth flows often introduce both security gaps and unnecessary overhead — fixing that alone typically improves response times and hardens the app in one pass. Questions: 1) Which PHP version is the app currently running on? 2) Are there specific endpoints or processes that feel slow right now? Looking forward to potentially working together. Thanks, Kamran
£23 GBP in 10 days
8.4
8.4

Dear Client, Hope you are doing good!! I am ready to help you on Immediate basis. I would love to discuss further, ASAP you schedule the interview. I am an experienced Full-Stack website developer, Develop near about 550 websites. I can create custom CRM, React.js, Node.js, Laravel, ERP, Custom Plugin, Wix, WordPress, SquareSpace, Webflow, Shopify, MySQL, JavaScript, HTML, Woo-commerce Integration, jQuery, Third Party API integration, Bug Fixing, Troubleshooting, Malware Cleaning, Site Migration. Please have a quick chat discussion and let me know your thoughts. When can we discuss? Regards
£250 GBP in 3 days
8.2
8.2

⭐⭐⭐⭐ I am Passionate PHP/Full stack developer having rich experience with all the latest technologies with so many successful Tasks. I have some queries to give you accurate time and price Please I have a history of successful projects and happy employers. If requested, I can provide references. Waiting for your response.
£251 GBP in 2 days
8.1
8.1

Hello, I see you need a skilled PHP developer to update and improve the backend functionality of your application. I can help you enhance the existing system with clean, secure, and optimized PHP development focused on performance, maintainability, and stability. What I will handle: • Review and improve the existing backend architecture • Optimize backend performance and database queries • Enhance API integrations and data processing workflows • Improve authentication, security, and validation handling • Debug and fix backend related issues • Maintain compatibility with the current application functionality • Test updates carefully before deployment I have experience working with core PHP applications, backend optimization, API integrations, authentication systems, and secure server side development with strong attention to performance and scalability. I would be happy to discuss the project further and review the current backend requirements. Thanks
£100 GBP in 3 days
8.1
8.1

Hello, I have carefully reviewed your requirement for updating the PHP backend of your application. I can help you improve performance, fix existing issues, and enhance overall system reliability using clean core PHP practices. I have strong experience in backend optimization, API integration, authentication flows, and secure data handling. I will analyze your current codebase, identify bottlenecks in database queries, API responses, and security logic, and then implement optimized and scalable solutions without affecting existing functionality. I also ensure proper error handling, structured code improvements, and security hardening where required. You will get well-documented updates, tested changes, and a stable backend ready for production use. I can start immediately and deliver quick turnaround with clear communication throughout the project.
£250 GBP in 7 days
8.2
8.2

Woah Hello, I see that you need a PHP developer to update the backend functionality of your application. It's important to enhance performance, especially when it comes to API integration, data processing, and improving security measures. With 7+ years of experience in core PHP, I've worked on similar projects where I've successfully boosted backend performance and streamlined processes. My approach would involve first assessing the current backend setup to identify bottlenecks and areas for improvement. From there, I would implement necessary updates that not only enhance functionality but also ensure security and efficiency. I have a strong background in authentication and data handling, which would be beneficial for your needs. Looking forward to the opportunity to work together! Best regards, Ivan Mandinski
£135 GBP in 2 days
7.4
7.4

Hi, I’ve been working with PHP since 2008 and have extensive experience with core PHP, Laravel, and CodeIgniter. I’ve successfully led multiple web applications as a senior developer and team leader, managing both front-end and back-end development. In addition to PHP, I’m proficient in JavaScript (both back-end and front-end) and have worked with modern frameworks like Vue.js and React.js. I’ve also integrated various third-party APIs, including payment gateways, social logins, and more. I’m passionate about server management and have hands-on experience with popular cloud platforms like AWS, DigitalOcean, and Azure. Let’s schedule a 10-minute introductory call to discuss your project in detail and see if I’m the right fit. I usually respond within 10 minutes. I’m eager to learn more about your exciting project. Best regards, Adil
£142.53 GBP in 7 days
7.5
7.5

Hi, I'll help improve your PHP backend — whether it's performance, API integration, or tightening up authentication and security. What specific area needs attention first? 10+ years on Freelancer — https://www.freelancer.com/u/ahsansaleemnaz — let's chat.
£100 GBP in 2 days
7.7
7.7

Asif from Einnovention here, and I bring over a decade of rich experience working with PHP. Back-end performance is my forte, and I pride myself on delivering scalable solutions that enhance not only the performance but also the security of your application. My track record demonstrates tangible improvements in speed, reliability, and data processing, all integral aspects of a seamless user experience. My proficiency doesn't end there. In addition to core PHP, I'm well-versed in CakePHP, Laravel, CodeIgniter, along with CMS systems like WordPress, making me your one-stop solution for any system updates or integrations that your project may require. What truly differentiates my team at Einnovention is our dedication to building long-term relationships by delivering results that surpass our client's expectations. This is why we offer free consultations before hiring to understand your requirements better. On top of this, we provide unlimited revisions until you're fully satisfied and offer free support for more than 2 weeks after delivery — all because we're not just about coding; we genuinely care about your project's success. Let's discuss how I can assist you in revolutionizing your project now!
£135 GBP in 7 days
7.8
7.8

Hello I am interested in assisting you with updating and improving the backend functionality of your PHP application. With strong experience in core PHP development and backend optimization, I can help enhance your system’s performance, security, and overall reliability. I have worked on various PHP-based applications involving: - Backend development and code optimization - API integration and third-party service connectivity - Data processing and database management - Authentication systems and security enhancements - Bug fixing, maintenance, and performance improvements I focus on writing clean, scalable, and secure code while ensuring smooth application performance and compatibility with existing systems. I can quickly understand your current architecture and implement the required updates efficiently. I am ready to start immediately and would be happy to discuss your project requirements in detail. Looking forward to working with you. Best regards,
£135 GBP in 7 days
7.8
7.8

Hi, We’re Doomshell Software Pvt Ltd, a team of experienced PHP developers specializing in backend development, system optimization, and secure application enhancement. Your project aligns perfectly with our expertise in improving existing PHP applications for better performance, security, and scalability. We can help you update and strengthen your backend by improving core PHP functionality, optimizing database queries, and refining server-side logic for faster and more stable performance. Our team also has strong experience in API integration and development, ensuring smooth and reliable communication between your application and third-party services. In addition, we focus heavily on backend security, including authentication improvements, session handling, and protection against common vulnerabilities like SQL injection and XSS. We also optimize database structure and data processing to enhance speed and reduce load. We follow clean coding practices, ensure scalable architecture, and provide thorough testing to maintain stability after updates. Our goal is not just to fix issues, but to improve the overall performance and future readiness of your system. We are ready to start immediately and would be happy to review your current backend setup to suggest the best improvements. Looking forward to working with you.
£135 GBP in 7 days
7.4
7.4

Hi I will update backend functionality. Please detail about update that you want in backend Please have a look about my profile about my review and rating, https://www.freelancer.com/u/webmaestro2013/ I know PHP MYSQL, MVC framwork and js very well .I have developed backend and front end both. I know PHP, MYSQL, AJAX, javascript , jquery , css, html, xml, js , json, Bootstrap and API implementation PLEASE HAVE A LOOK AT MY PROFILE FOR MORE ABOUT MY RATING AND REVIEWS I have 15+ years of experience in php, mysql, I have done more jobs in the php for both design and functionality. I hope that you will provide this job to me and reply to me as soon as possible for the best services and supports. Thanks & Regards Anita
£135 GBP in 3 days
7.3
7.3

Hi, I’m a skilled PHP developer with strong experience in core PHP, backend optimization, and secure API integrations. I can improve performance, enhance functionality, and strengthen authentication/security without breaking existing systems. Ready to start immediately. Best regards, Ihtsham
£55 GBP in 1 day
6.9
6.9

Hi there, I'd love to help you modernize and optimize your PHP backend. I've been working with core PHP for over 5 years, building and refactoring backends for SaaS platforms, e-commerce systems, and data-heavy applications. My approach would be to first audit your existing codebase to identify performance bottlenecks, security vulnerabilities, and areas where the architecture can be tightened up. From there, I'll refactor inefficient queries, implement proper authentication flows (JWT/OAuth as needed), and ensure your API integrations follow best practices with solid error handling. I've handled similar backend overhauls before and can start immediately — let's discuss the specifics of your application so I can tailor the solution precisely to your needs.
£20 GBP in 1 day
6.7
6.7

Hello, I see you need a precise PHP backend update for your application and I understand the importance of maintaining clean and efficient code. Often, backend updates face hidden challenges like legacy code compatibility which can cause unexpected bugs. With my 10+ years of experience in Laravel and Native PHP, I can ensure a smooth and reliable update process. You can check samples from our work at https://www.freelancer.com/u/eliaa. Looking forward to hearing from you. Best Regards, Elia Fawzy.
£250 GBP in 7 days
6.9
6.9

Hi, As per my understanding: You need backend improvements for your PHP application focused on performance, API handling, security, and overall system stability without affecting existing workflows. • Review current backend architecture and bottlenecks • Optimize APIs, database queries, and processing flow • Improve authentication, validation, and security handling Could you share the current PHP version and framework, if any? Are there existing performance/security issues already identified? Will this involve third-party API integrations? I will share my portfolio on your first message. I am sure about the delivery after this first meeting. I will be looking forward to hearing from you.
£350 GBP in 8 days
6.8
6.8

Tower Hamlets, United Kingdom
Member since May 18, 2026
$250-750 USD
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$24 USD
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$8-15 USD / hour
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₹12500-37500 INR
₹12500-37500 INR
$750-1500 USD
₹1500-12500 INR
₹600-1500 INR
$10-30 USD
$8-15 USD / hour