Legacy PHP CRM Maintenance

@webbookstudio

Hi there, We understand you're looking for an experienced developer to maintain and enhance your custom-built CRM, which is written in vanilla PHP with a MySQL back end, and utilizes old-school HTML, CSS, and JavaScript. Our team at Webbook Studio has extensive experience with legacy PHP systems, having worked on similar projects such as a learning platform website for children and a website for an electric bike company, both built with PHP and custom design. With 17 years of web development experience and a 5.0 rating across 458 reviews, we're confident in our ability to triage and fix bugs, implement new features, and refresh branding assets while introducing modern best practices. We'll deliver fixed tickets, new feature commits, and a fully re-branded interface, with clean, readable code and clear commit messages. One question: are there any specific performance or security concerns that you've identified in the current CRM that you'd like us to prioritize while working on the project? Feel free to message us to discuss the details! — Webbook Studio

@softsolution2000

Hi, Vanilla PHP with no framework and a MySQL back end that's accumulated years of shortcuts — yeah, I know this kind of codebase well. The prepared statements alone are usually worth a full audit pass. I'd triage the live bugs first, get the branding propagated across templates and outgoing emails, then layer in the scoped features once the system is stable. Git workflow, namespacing, autoloading — all sensible additions I can fold in without touching anything that's working. Handled similar legacy PHP rescue work recently, so reading older patterns isn't a chore. Happy to share relevant commits if that helps you decide. What's the roughest part of the codebase right now — the reporting queries, user management, or something else?

@dynamitewebsol

Hello sir, I read your requirements and understand very-well and ready to manage your crm php website. Thank you

@gauravgargcs

Hello, I will first audit the codebase to identify the most critical issues, then deliver bug fixes, feature enhancements, and a complete branding refresh while maintaining system stability. Where appropriate, I’ll introduce modern development practices such as prepared queries, code organization improvements, and structured Git workflows without disrupting the existing application. With 10+ years of experience in PHP, MySQL, legacy application maintenance, and CRM development, I have extensive experience refactoring older codebases, improving performance, and transforming difficult-to-maintain systems into more reliable and scalable platforms. Let's discuss the current bug list, feature requirements, and deployment process so I can review the codebase and help move the CRM forward efficiently. thank you Regards Gaurav Garg

@extreamcode

Hi,The hidden pain point here isn’t just old PHP , it’s keeping a legacy CRM stable while cleaning up the codebase without disrupting users. I’ve handled similar vanilla PHP/MySQL systems, where the real work is triaging live bugs, refactoring older patterns safely, and rolling out improvements in small, controlled commits. I can help squash the current issues, implement the scoped features, and propagate the new branding across modules, templates, and emails while keeping deployments clean and readable. I’m comfortable introducing practical upgrades like prepared statements, better structure, Git-based workflows, and performance fixes without risking the production flow. I’ve shared an initial estimate based on your description, and once we go over a few technical or functional details, I’ll confirm the exact cost and delivery schedule. Looking ahead, I’d start by reviewing the highest-priority bug list and the CRM’s deployment flow, then move into the branded UI updates and feature commits in a controlled sequence. Could you share the current bug list, the in-house feature scope, and whether staging already mirrors production data and templates? Thanks, Asad

@point2solutions

***** Legacy PHP CRM Maintenance, Feature Development & System Modernization ***** Hello, I checked the requirements and can take ownership of your custom-built PHP CRM, focusing on immediate bug resolution, feature enhancements, and complete branding updates while maintaining system stability. With extensive experience working on legacy PHP/MySQL applications, I can efficiently navigate older codebases, implement clean improvements, and gradually introduce modern development practices without disrupting existing functionality. Features: * Legacy PHP CRM Maintenance * Bug Investigation & Resolution * Custom Feature Development * MySQL Database Optimization * Complete CRM Rebranding * Logo & Asset Updates Across Modules * Email Template Updates * UI/UX Refinements * Legacy Code Refactoring * Prepared Statements Implementation * Security Improvements * Performance Optimization * Query & Report Optimization * User Management Enhancements Many More As Per Your Need.... Let's Connect over call/chat for detail discussion and codebase review. Thanks,

@nikhilgarg96

Hi, As a team that specializes in the maintenance and modernization of legacy PHP projects, we are uniquely equipped to handle the task at hand. Our deep knowledge of vanilla PHP and MySQL, combined with our ability to read and refactor older code patterns, makes us the ideal fit for your CRM system project. We understand that your priority is to resolve high-visibility bugs and roll out new features while refreshing all branding assets. Rest assured, not only can we deliver on these requirements efficiently and effectively, but we can also introduce modern best practices without compromising the stability of your live system. Furthermore, over time we have developed a strong set of technical expertise in languages such as Laravel, CodeIgniter, CakePHP, Yii, and Node.js to name a few. This diverse skill-set will be useful in enhancing your CRM usability and performance. We are proficient in Git workflows which will ensure clean deployment with clear and informative commit messages. Finally, I would like to reiterate that we pride ourselves on delivering clean, readable code; an ethos that aligns perfectly with your acceptance criteria. Having rescued complex PHP projects before, we genuinely enjoy turning spaghetti code into something maintainable. Thanks....

@seefattechnologi

⭐⭐⭐⭐YES, it's aligned with my expertise⭐⭐⭐⭐ I am highly proficient to work on this project . 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. Thanks!! Parminder singh

@smilemittal181

Hello, I am a PHP and Mysql expert who loves to code. For over the last 10+ years, I have built and customized so many projects and always satisfied my clients with my work and can assure you the same. I use these technologies to build awesome stuff: ========================================= - PHP / PHP OOP - WordPress / WPML / Visual Composer / Advanced Custom Fields / Gravity Forms -Woo commerce - Codeigniter - JavaScript / HTML / CSS - MySQL - Linux / Ubuntu - jQuery Please send me a message for discussion. Regards, Smile Mittal I am placing a placeholder bid as the amount field is compulsory to submit this bid.

@diektech

Hi, This is Elias from Miami. I checked the details and understand you need someone to take over a legacy PHP/MySQL CRM, fix active user-reported bugs, add scoped features, and update branding across the interface, templates, and outgoing emails. The real challenge here is making changes without destabilizing the live system. Legacy PHP projects often break when developers refactor too aggressively before fully understanding the existing flow, database structure, and hidden dependencies. I've worked on older PHP/MySQL systems where the first priority was bug triage, safe refactoring, cleaner SQL handling, and staged deployment. My approach would be to review the current codebase, reproduce the reported bugs, separate urgent fixes from improvement work, and make changes through clean commits with clear deployment notes. I’d keep modernization practical and gradual so the CRM becomes easier to maintain without risking current operations. I have a few questions to get a better understanding: Q1 - Do you already have a staging environment and Git repository set up? Q2 - Are the scoped new features documented as tickets or specifications? Q3 - Are the current bugs mainly UI issues, workflow errors, database/reporting problems, or a mix? I'd be happy to discuss the details and suggest the best approach based on your goals. Looking forward to hearing from you.

@Friends4it

Hi, this is squarely our wheelhouse - we work in PHP/MySQL daily and are comfortable reading + refactoring legacy code. What I'll do first: - Triage and squash the most visible bugs users are hitting now - Stabilise the riskiest areas, refactoring old patterns safely (without breaking behaviour) - Verify fixes on staging, commit cleanly via Git - Set up a clear path for ongoing maintenance/improvements Share repo access + the current bug list and I'll start closing items quickly. Reliable, communicative and careful with legacy systems. Portfolio: www.globalitvision.com. A few questions on the clarification board. Muhammad Idrees Global IT Vision Pvt. Ltd

@Hammadhassan21

Hey, I will take charge of your custom PHP CRM, triage and fix the most urgent bugs, implement the scoped new features, and refresh branding across all modules and templates while ensuring stability. I’ll refactor legacy code where needed using modern best practices like namespacing, prepared SQL, and Git workflows, optimize performance where possible, and provide clean deployment notes along with fully readable, maintainable code. Do you have a staging server ready where I can push initial fixes and updates for review? Portfolio: https://www.freelancer.com/u/Hammadhassan21 I’m ready to help make your CRM more robust, maintainable, and user-friendly. Best Regards: Hammad hassan

@ZohaibRoy

⭐⭐⭐⭐⭐ Experienced Developer for Custom CRM Management and Enhancements ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project requirements and see you are looking for an experienced developer to manage your custom-built CRM. Look no further; Zohaib is here to help you! My team has successfully completed 50+ similar projects involving legacy PHP systems. I'll first tackle the visible bugs, then roll out new features, and refresh your branding across all modules. ➡️ Why Me? I can easily handle your CRM management as I have 5 years of experience in PHP, MySQL, and web development. My expertise includes debugging, feature development, and UI updates. I also have a strong grip on modern practices like Git workflows and optimized SQL, ensuring your system remains stable while improving performance. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. I look forward to discussing this with you in our chat. ➡️ Skills & Experience: ✅ PHP Development ✅ MySQL Database ✅ HTML/CSS/JavaScript ✅ Bug Fixing ✅ Feature Development ✅ UI/UX Updates ✅ Version Control (Git) ✅ Code Refactoring ✅ Performance Optimization ✅ Legacy Code Management ✅ Branding Updates ✅ Testing & Deployment Waiting for your response! Best Regards, Zohaib

@doomshellsl

Hello, Your project is a great fit for our legacy PHP development and CRM maintenance expertise at Doomshell Software Pvt Ltd (20+ Years Experience). We have extensive experience working with custom-built PHP/MySQL applications, resolving legacy code issues, implementing new features, and modernizing older systems while maintaining production stability. We can help with: ✔ Bug investigation and resolution across CRM modules ✔ Implementation of new in-house scoped features ✔ Complete branding refresh across interfaces, templates, and emails ✔ PHP/MySQL code refactoring and performance optimization ✔ Security improvements using prepared statements and best practices ✔ Git-based workflow, clean commits, and deployment documentation ✔ Staging deployment, testing, and production rollout support We're experienced with: ✔ Legacy PHP application maintenance ✔ MySQL optimization and database management ✔ HTML, CSS, JavaScript, and custom CRM platforms ✔ Code modernization without disrupting live operations ✔ Long-term support and iterative feature enhancements Quick questions: 1. Which PHP version and MySQL version is the CRM currently running on? 2. Do you already have a prioritized list of bugs and feature requests for the first sprint? Regards,

@sabaehsan

Greetings, I see you're looking for someone to maintain and enhance your legacy PHP CRM, making it more user-friendly while addressing current bugs and implementing new features. My approach would begin with identifying and fixing the most pressing issues users are experiencing, ensuring a stable experience right away. Next, I’d roll out the planned features and focus on refreshing your branding across all aspects of the CRM. With a strong background in PHP and MySQL, I’m comfortable working with older codebases and can refactor them while incorporating modern practices like namespacing and prepared SQL. My goal would be to not only stabilize the current system but also improve performance where possible, making it easier for you to manage in the future. Looking forward to the opportunity to help. Best regards, Saba Ehsan

@DeveloperStation

Hi, I’ve successfully led the maintenance and development of legacy PHP applications, including a custom-built CRM that was later migrated to a modern Laravel version. I understand the challenges of working with outdated code and have a strong grasp of PHP 7.4 and 8.1, along with modern practices like CI/CD, automated testing, and security hardening. As a full-stack developer, I’m equally proficient with front-end technologies like Vue.js and React, and I can handle server management tasks as needed. Let’s schedule a 10-minute introductory call to discuss your project in more 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

@Rekhathakur

Hello, This project aligns perfectly with my experience working on legacy PHP applications and custom CRM platforms. I have extensive experience maintaining, debugging, and modernizing large vanilla PHP/MySQL systems while ensuring production stability. My first step would be to review the existing codebase, identify the highest-priority user-reported issues, and resolve them with minimal disruption to current workflows. Once the critical bugs are addressed, I can implement the scoped features and thoroughly test them before deployment to staging. For the rebranding phase, I will perform a complete audit of the CRM, updating logos, company information, email templates, reports, dashboards, PDFs, and any other customer-facing assets to ensure consistent branding throughout the platform. Beyond the immediate requirements, I can gradually introduce modern development practices where appropriate, including prepared statements for improved security, code refactoring, reusable components, Git-based workflows, autoloading, and better project structure without requiring a risky full rewrite. Deliverables will include: • Resolution of reported bugs. • Implementation of new features. • Complete CRM rebranding across all modules and communications. • Deployment to staging for review and approval. • Clear deployment notes and documentation. • Clean, maintainable code with meaningful commit history. Best regards

@C0RETECHIES

Hi there, I understand your CRM acts as the central operational hub for your business, managing the entire client lifecycle from data entry and interaction logging to generating reports and sending automated emails. The immediate task is to stabilize this core system by resolving bugs, then introduce scoped features and propagate a full brand refresh across every UI element and template. Technical approach: I'll begin by replicating the environment and establishing a Git workflow. Bug fixes will be handled on dedicated branches. For re-branding, I'll systematically replace assets and values. I'll introduce prepared statements and PSR-4 autoloading gradually as I work on relevant code, ensuring stability. Core modules: Work will be organized around your key modules: Contact Management, Reporting Engine, and Communication Templates (for email). The bug fixes will likely touch all three, while the re-branding will be a cross-cutting concern affecting the entire presentation layer. Implementation strategy: We'll stabilize first. I'll set up version control and a staging environment. The first sprint will focus on the most critical user-reported bugs. The second will cover new features and the branding refresh. All changes will be deployed to staging for your approval before going live. Regards, Rohit

@skalogir

Hi, I can take over your legacy vanilla PHP/MySQL CRM, fix current user-reported bugs, add the scoped new features, and update branding across modules, templates, and outgoing emails. I have experience rescuing older PHP systems, reading/refactoring legacy code, stabilizing live CRMs, improving SQL safety, cleaning HTML/CSS/JavaScript, and using Git with clear commits. I will work carefully on staging, prioritize visible issues first, apply modern practices without risking stability, document deployment notes, and flag performance or maintainability improvements for future sprints. Q1: Do you already have a staging copy and Git repo ready? Q2: How many urgent bug tickets are currently open? Q3: Are the new branding assets finalized? Best regards.