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I am looking for an experienced full-stack developer to take over an existing web application [login to view URL] The application is already substantially developed. I am **not looking for a rebuild or a large amount of new development**. The goal is to review the existing application, understand how it is intended to operate, fix the remaining issues, validate the existing functionality, improve the user experience, and get the application into a stable production-ready condition. ## Priority 1 — Understand and Validate the Existing Workflow The basic concept is: **Administrator creates/manages an AOR → AOR contains locations/points and associated information → questions are associated with the appropriate AOR → users train on those locations/questions → users are tested based on their assigned qualification/AOR → results/progress are recorded.** The developer should understand **how an AOR enters the system, how the information is stored, how the user trains on it, and how that information ultimately appears during testing.** AOR Images This is one of the main existing technical problems and should receive significant attention. The application uses images associated with AOR locations/questions, including AI-generated images. Please: * [ ] Diagnose why AOR images sometimes fail to generate. * [ ] Diagnose why images sometimes fail to load or display. * [ ] Confirm images are saved correctly. * [ ] Confirm images remain associated with the correct AOR/location/question. * [ ] Make sure the appropriate image appears during training. * [ ] Make sure the appropriate image appears during testing. * [ ] Eliminate broken image references. * [ ] Validate the AI image-generation integration and error handling. * [ ] Make the image workflow reliable. This is a **high-priority issue**. --- ## Priority 4 — Questions & Testing Validation I do not expect major redevelopment of the testing system. The primary objective is **verification and cleanup**. Please verify: * [ ] Questions are associated with the correct qualification. * [ ] Questions are associated with the correct AOR. * [ ] Questions pull correctly during training and testing. * [ ] AOR questions display the correct information and images. * [ ] Test configuration behaves logically. * [ ] Scores/results are saved correctly. * [ ] Question counts are accurate. * [ ] There are no duplicate or incorrectly categorized questions. * [ ] Administrator question-management tools work correctly. --- ## Priority 5 — Administrator & Trainee/User Validation This should primarily be a validation and usability exercise rather than major new development. Please verify: * [ ] Administrators can create and manage users. * [ ] Administrators can assign qualifications appropriately. * [ ] Administrators can assign/manage AOR access appropriately. * [ ] Enabled and disabled qualifications are easy to understand. * [ ] Trainee accounts function correctly. * [ ] User permissions behave correctly. * [ ] Administrator-created accounts can be activated and managed correctly. * [ ] Administrator screens are straightforward to use. Any confusing areas should be cleaned up, but I am not requesting a completely new administration system. --- ## Priority 6 — User Interface / User Experience The functionality already exists in many areas, but the application needs some UI/UX refinement. Please review the application from the perspective of a new user and improve: * [ ] Navigation consistency. * [ ] Back / Exit / Dashboard behavior. * [ ] Unnecessary clicks. * [ ] Excessive scrolling. * [ ] Page organization. * [ ] Button placement and labeling. * [ ] Instructions to the user. * [ ] Visual clarity. * [ ] Mobile/responsive behavior where appropriate. The objective is a **cleaner, simpler and more intuitive experience**, not a complete visual redesign. --- ## Priority 7 — Application Stability As the above items are reviewed: * [ ] Identify existing errors or broken functionality. * [ ] Fix application crashes. * [ ] Check database/API errors. * [ ] Check broken links/pages. * [ ] Confirm existing integrations operate correctly. * [ ] Verify that fixes in one section do not break another section. * [ ] Perform final regression testing. --- # No Major New Features at This Stage I am **not currently looking to add major new capabilities**. For example, features such as allowing users to propose/upload new AOR locations from a map are **not part of this immediate project**. The priority is to make the **existing CG Navigator application work correctly and reliably first**. Future features can be discussed after the current platform is stable. # Documentation / Support Context I also want the selected developer to understand and document the application sufficiently so that future development does not depend on one person. # How I Would Like the Project Handled I suggest the work be approached in this order: **1. Review existing application and understand workflow** ↓ **2. Validate and fix AOR functionality** ↓ **3. Fix AOR image generation/display issues** ↓ **4. Validate questions and testing** ↓ **5. Validate administrator/trainee functionality** ↓ **6. Improve UI/UX** ↓ **7. Final system testing and production validation** I expect that much of this project will involve **reviewing, validating, correcting and polishing existing functionality rather than building new functionality from scratch.** # When Applying Please tell me: 1. Your experience taking over existing web applications. 2. Your experience debugging existing code. 3. Your experience with database-driven applications. 4. Your experience with mapping/geolocation functionality. 5. Your experience with AI/image-generation APIs. 6. Your experience reviewing and improving existing UI/UX. 7. Whether you will personally perform the work. 8. How you would approach reviewing an unfamiliar existing codebase. Please begin your proposal with **"CG Navigator"** so I know you reviewed the project description. I am looking for someone who can first **understand what is already built**, then methodically finish and stabilize it without unnecessarily rebuilding the platform.
Project ID: 40639314
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Intermittent AI image failures almost always come from generating inside the web request — the provider rate-limits or times out, the request dies, and you're left with an AOR record whose image path is null or pointing at a file that was never written, with no retry and no error surfaced. I'd fix that by moving generation to a background job with retries and an explicit status per image, so failures are visible and re-runnable rather than silent. For images that fail to load, I'd separate the causes: expired signed URLs, relative-vs-CDN path mismatch, or orphaned records — then run an integrity check across every AOR/location/question to find and repair broken links. Before that, I'd trace the full AOR-to-testing flow end to end. Can start immediately.
$250 USD in 1 day
7.6
7.6
222 freelancers are bidding on average $409 USD for this job

CG Navigator — I have solid experience taking over existing web applications and getting them production-ready without unnecessary rebuilding. Your brief is clear that this is mainly a review, validation, bug-fixing, and stabilization job, and that is exactly the kind of work I handle methodically. I’m comfortable debugging database-driven systems, tracing workflow issues across admin/user/testing modules, and diagnosing API-related problems like image-generation and broken image associations. I would personally handle the work, starting with codebase review and workflow mapping, then moving through the AOR/image flow, testing validation, admin usability, and final regression checks.
$690 USD in 7 days
9.8
9.8

As an experienced full-stack developer, I specialize in enhancing existing web applications, particularly in database-driven environments and API integrations. I have a proven track record of debugging complex codebases and optimizing UI/UX for improved user experience. I follow a structured approach to understanding and enhancing existing functionalities and am committed to delivering quality work in a timely manner. I prioritize stabilizing the platform before considering new features and ensure thorough documentation for future development. I look forward to the opportunity to collaborate with you on the CG Navigator project and leverage my expertise to achieve its goals efficiently.
$675 USD in 5 days
8.9
8.9

Hello, With over a decade of experience in full-stack development, I am confident that I can deliver precisely what you seek for your training and testing platform. As the founder of A4Logic, I have successfully built numerous complex software solutions as per client requirements. My expertise spans across a wide range of technologies and platforms including WordPress, Shopify, Laravel, React, and Python, which aligns seamlessly with necessary skills for your project. In terms of priorities 1 through 7 that have been detailed extensively by you, allow me to assure you that my vast experience makes me the perfect fit to take on these tasks proficiently. I deeply understand how crucial an error-free and reliable web application is to ensure smooth workflow and user satisfaction. I am adept at analyzing existing issues to identify their root causes and enact necessary remedies - something that's vital for your project’s priority 1 regarding AI-generated AOR images alongside other issues. Furthermore, my passion for clean coding and my specialization in usability make me the ideal candidate to tackle priorities 4 through 7 on your list. In line with these priorities, my primary approach would be meticulous **verification and cleanup** rather than major redevelopment - a methodology essential to respect your requirement of not doing heavy new development. Finally, my goal for every project is client satisfaction - be it a bug-fixing Thanks!
$350 USD in 6 days
8.6
8.6

Hi — Elias here from Miami. I see you need an experienced developer to take over an existing web application. It's clear that you want to enhance the training and testing experience for your users. The real challenge here often lies in maintaining a seamless user experience while ensuring the application remains scalable and reliable. What usually matters most is how we manage user data and permissions, especially as the platform grows. The tricky part is usually integrating new features without disrupting existing workflows. My approach would be to first assess the current architecture and identify areas for improvement. I’d focus on building a robust backend using PHP while ensuring the frontend is intuitive and responsive. This way, we can enhance performance and maintainability for future updates. I’ve worked on similar platforms before, optimizing both user interfaces and backend functionalities, which has taught me how to proactively address potential issues. A few questions to better understand the scope: Q1 – What user roles and permissions are currently implemented? Q2 – Are there specific integrations with other systems that need to be prioritized? Q3 – What scaling expectations do you have for the user base in the next year? Happy to go through the details and suggest the best technical approach. Looking forward to hearing from you.
$500 USD in 5 days
8.6
8.6

CG Navigator Taking over a platform like this, one where the AOR-to-training-to-testing pipeline already works in principle but has real gaps in the image pipeline, is really a diagnosis job before it's a coding job. Before touching anything, I'd map the actual data flow, how an AOR record connects to its images, questions, and qualifications in the database, so I know exactly where the chain breaks rather than guessing. For the image issue specifically, I'd start by isolating three separate failure points: generation (is the AI API call failing or timing out), storage (are file paths/URLs saved correctly against the right AOR/location record), and retrieval (are training and testing pages actually querying the right association). These often look like one bug but are really three, and treating them separately usually reveals the real cause faster than patching symptoms. Once images are stable, I'd move through questions, admin tools, and trainee flows the same way, verify against your priority list, log what's broken, fix it, then retest so a fix in one area doesn't quietly break another. Happy to start with a review pass and give you a written diagnosis of the AOR image issue before any fixes begin, so you can see how I think before committing to the full scope. Hafiz S
$500 USD in 7 days
8.7
8.7

Hi CG Navigator, I can take over this kind of existing application with the exact mindset you need: understand what is already built, trace the workflow end-to-end, and stabilize the platform without unnecessary rebuilds. The hidden risk here is usually not the feature list, but broken associations between AORs, questions, users, and images , that’s where I’ll focus first. I’ve worked on database-driven web apps, PHP/MySQL systems, admin panels, AI/image API integrations, and fixing existing codebases where storage, display, and logic needed cleanup. I’ll review the current flow, validate AOR/question/testing behavior, diagnose the image-generation and loading issues, tighten up error handling, and improve the UX where it reduces confusion or extra clicks. 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. If you’d like, I can start by mapping the current workflow and identifying the highest-risk breakpoints first. What technology stack powers CG Navigator today, and where are the AOR images generated, stored, and linked in the current workflow? Best regards, Asad
$250 USD in 10 days
8.3
8.3

"CG Navigator" Hi there, I have carefully read your project description and understand that you are looking for a skilled professional to take over the existing web application www.cgnavigator.com. My approach will involve thoroughly reviewing the application, understanding its intended operation, fixing any remaining issues, and enhancing the user experience to ensure it is production-ready. To address the technical problems related to AOR images, I will diagnose and resolve issues with image generation, loading, and display. Additionally, I will ensure that questions are correctly associated with qualifications and AORs, and that the testing system functions logically. With my experience in debugging existing code, database-driven applications, and improving UI/UX, I am confident in my ability to validate and enhance the CG Navigator platform effectively. I will personally handle the work and approach the review of the codebase methodically to ensure a stable and reliable application. I am excited about the opportunity to work on the CG Navigator project and look forward to discussing it further with you. Cheers, Rabia Shaikh
$350 USD in 3 days
8.3
8.3

CG Navigator — I’ve worked on inherited applications where the main need was to understand the current logic, fix what is unreliable, and make the system stable enough for real users. Your priorities are well defined, especially around AOR image generation/display, question mapping, testing flow, permissions, and usability cleanup. I’m experienced with debugging existing codebases, database-backed applications, admin/user role behavior, and reviewing UI/UX from the perspective of first-time users. I would approach this by first documenting the workflow, then validating each module step by step so fixes are clean and do not create new issues elsewhere.
$670 USD in 7 days
8.1
8.1

Greetings, CG Navigator caught my attention because it seems you’re looking for someone to fine-tune and stabilize an existing web application rather than start from scratch. My approach would involve thoroughly reviewing the current structure and workflow to understand how the application operates. From there, I’d focus on resolving the image generation issues, ensuring that the AOR functionality works smoothly, and validating the questions and testing processes. I have experience with debugging and improving web applications, especially those driven by databases. I’ve worked with mapping and geolocation functionalities before and have a solid understanding of AI/image-generation APIs. My goal would be to enhance the user interface and experience, making it more intuitive for users while ensuring no existing features are disrupted. Best regards, Saba Ehsan
$500 USD in 3 days
7.6
7.6

Hi, I will meticulously review the existing CG Navigator web application, focusing on understanding and validating the workflow, fixing AOR image generation/display issues, verifying questions and testing functionality, validating administrator/trainee features, improving UI/UX, and ensuring application stability. Let's discuss further to delve into the specifics. Please start the chat so we can discuss it further. Regards, Sai Bhaskar
$370 USD in 10 days
7.8
7.8

✨ Hello, CG Navigator. I will audit your codebase and refine API integrations to stabilize this training application. I have personally debugged legacy logic for several complex web-based training systems. I will manually perform all testing and documentation tasks to ensure platform reliability. Estimated timeline: 7-10 days Budget: $450 Let's discuss and get started. Ajharul
$500 USD in 7 days
7.8
7.8

Hi, I your "Web Based Training and Testing Platform" project description in detail and undertood your requirements. I've worked on many PHP projects in recent times. So I am confident on achieving your expected Goals. Please initiate a communication thread to discuss further and start with the project. ⭐ 5.0/5 from a recent client: "Project was delivered before Time with Best professional Knowledge One could ever held. Thanks for the support" Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
$450 USD in 9 days
7.5
7.5

Hello!, This is James from Hollywood... I read your project description carefully, and I understand you need a full-stack developer to take over an existing web-based training and testing platform and improve it properly, not just patch it up. I have around 15 years of experience in PHP, frontend development, HTML, CSS, UI/UX, and maintaining existing web apps without breaking what already works. My approach is simple: understand the current system first, then improve the structure, fix issues, and make the training and testing flow smoother for users and easier for you to manage. My plan would be: 1. Review the existing codebase, flow, and setup 2. Identify bugs, UI issues, and weak points 3. Fix and refine the platform step by step 4. Test everything carefully before delivery A few relevant examples of my past work include: - a corporate training portal - a quiz and assessment dashboard - a PHP-based learning system - a responsive internal admin platform Could you please clarify the following questions to help me better understand the project? 1. Which part needs the most attention first: UI, functionality, bug fixes, or new features? 2. Do you already have source code and hosting access ready for handover? 3. Are there any specific features you want improved, like scoring, progress tracking, or certificates? If you want someone who actually pays attention to the details and treats this like a real system, I’d be glad to discuss it.
$650 USD in 3 days
7.3
7.3

Hello, CG Navigator caught my attention, and I see you need a full-stack developer to enhance your existing web application. I understand that your focus is on stabilizing and refining the current functionality rather than rebuilding it. With 7+ years of experience, I've worked extensively with existing applications, diagnosing issues, and improving user experiences. I’d start by thoroughly reviewing the current workflow to grasp how AORs function, particularly addressing the image generation problems you mentioned. Ensuring the correct association between questions and AORs, as well as optimizing the user interface for clarity and ease of use, is also a priority. I have experience debugging complex code and working with database-driven applications, including image-generation APIs. I believe this background equips me well to tackle the challenges presented. What specific issues have you encountered with the AI image generation that you would like addressed first? Best regards, Ivan Mandinski
$250 USD in 7 days
7.6
7.6

Greetings, CG Navigator caught my attention as it seems you're looking for a skilled developer to stabilize and enhance an existing web application without starting from scratch. With 10+ years of experience in full-stack development, I can efficiently review the current setup, understand its workflow, and address the high-priority issues, particularly the AOR image problems and the overall user experience. My background includes debugging existing code, working with database-driven applications, and refining UI/UX for better usability. I'm familiar with the technical challenges you're facing and can ensure that the application functions reliably. I will also document the process to help future development efforts. Could you share more about any specific user feedback you've received regarding the current UI/UX issues? Best regards, Kaya Creations
$300 USD in 1 day
7.7
7.7

CG Navigator — this project stood out because you are asking for the right thing first: understand the existing system properly, then stabilize it instead of rebuilding it. I have experience reviewing unfamiliar codebases, tracking data flow through database-driven apps, fixing broken logic, and improving usability while preserving the current product structure. The AOR image workflow, qualification/question relationships, user/admin permissions, and final regression testing are all areas I can help with. I would personally work on the project and handle it in the phased order you listed.
$724 USD in 7 days
7.3
7.3

Hello It sounds like you need a reliable full-stack developer to get your project across the finish line without the typical technical roadblocks. I have spent the last five years building scalable web applications from database architecture to the front-end interface, focusing on clean code and performance. I can help you streamline your development process and ensure your product is production-ready. Are you available for a brief chat this week to discuss your specific technical requirements? Giáp Văn Hưng
$750 USD in 7 days
7.0
7.0

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.
$250 USD in 7 days
7.1
7.1

Hi there, CG Navigator I am excited to submit my proposal for your project. With extensive experience in taking over and stabilizing existing web applications, I am confident in my ability to address the needs of CG Navigator. I have a strong track record in debugging and enhancing database-driven applications, ensuring that existing functionalities are polished to perfection. I understand the importance of the AOR functionality and will prioritize resolving image generation and display issues, ensuring a robust user experience. My background in working with AI/image-generation APIs will be instrumental in addressing these challenges efficiently. My approach to this project will involve thoroughly reviewing the current application to understand the workflow, followed by methodically validating and fixing each component as outlined. I am skilled in improving UI/UX, focusing on navigation consistency and visual clarity, which will help in delivering an intuitive user experience. I will personally handle all aspects of this project, ensuring direct communication and a cohesive understanding of the application's intricacies. When approaching an unfamiliar codebase, I begin with a comprehensive review, mapping out the existing architecture before executing targeted improvements. I look forward to the opportunity to contribute to CG Navigator and to help bring the application to a stable, production-ready state. Best Regards.
$500 USD in 10 days
6.7
6.7

CG Navigator From what I understand, the main issue is reliability, especially with AOR images, AI generation, storage, and how everything connects during training and testing. I’d first trace that full flow, then check the testing logic, permissions, admin side, database/API issues, and overall UX before final regression testing. I’m experienced in stepping into existing applications, understanding how the current workflow is supposed to work, and fixing issues without unnecessary rebuilding. I’d first trace the AOR flow, image handling, testing logic, permissions, and database/API behavior, then make targeted fixes to get everything stable and reliable. Could you share the current tech stack and repo access? Also, which AI image and mapping services are being used, and do the image issues show any specific errors? I’d be happy to jump on a call so you can walk me through the current AOR workflow. That will help me understand what’s working, what’s not, and the best way to stabilize the platform. Budget and Duration are placeholder. Regards, Taqi (FK).
$500 USD in 7 days
6.8
6.8

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