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I am looking for a subcontractor to complete the implementation and further development of a web platform based on the Qixer solution ([login to view URL]). The project is currently in the setup phase – it has been deployed using the base system and partially customized (including visual changes), but it is not yet ready for production. Due to the nature of the system (partly code-based, partly template-based), further development and configuration require solid technical experience. The current test version is available at: [login to view URL] Test access credentials: Seller: test_seller @[login to view URL] / 12345678 Buyer: test_buyer_final @[login to view URL] / 12345678 Main tasks at this stage: implementation of a login system integrated with the Icelandic eSIM system (I can assist with the integration), debugging and fixing issues (e.g. users cannot create listings – this feature currently works only for the super admin). The full scope of cooperation includes: System diagnostics Bug fixing Login system integration (Icelandic system) UI/UX improvements Optimization Testing and security improvements Production deployment / hosting Maintenance and ongoing support This project is a side business targeting the Icelandic market (~300k users), so it does not require large-scale performance like major platforms, but stability and reliability are essential. I have a programming background, but I am looking to collaborate with a more experienced team that can: propose optimal technical solutions, identify potential risks, advise on the future development direction. Payment model: Milestone-based payments depending on progress (phases can be adjusted together). At this stage, I am looking for: an initial analysis of the project, an estimated cost, technical suggestions. After initial agreement, I can provide: GitHub repository access, server access, a detailed task list. I am interested in long-term cooperation if the initial phase goes well. Thank you in advance for your response.
Mã dự án: 40316253
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188 freelancer chào giá trung bình $472 USD cho công việc này

Hi, This is Elias from Miami. I checked your project description and understand you’re looking to launch a services-based marketplace focused on freelance programming. The goal is to create a platform that connects freelancers with clients efficiently. I’ve built similar platforms and understand the challenges in creating a seamless user experience. My approach would involve using PHP and Laravel for a robust backend, ensuring both scalability and security while integrating user-friendly frontend solutions. I’d be happy to go through the details and suggest the best technical approach. I have a few questions to get a better understanding: Q1 – What specific user roles do you envision for the marketplace (freelancers, clients, admins)? Q2 – Are there any specific payment gateways or integrations you want to include? Q3 – Do you have any preferred design templates or themes in mind for the platform? Looking forward to hearing from you.
$500 USD trong 11 ngày
7,8
7,8

Hi there, I can review and stabilize your existing PHP website, fix all template-related issues, and clean up the codebase to make it secure, maintainable, and production-ready. I’ll ensure everything runs smoothly across devices while improving performance and resolving any inconsistencies caused by previous customizations. I also have experience integrating secure authentication systems and can handle the Icelandic eID/login integration with proper session management and user mapping. Kindly send me a message to discuss more. Thanks
$500 USD trong 8 ngày
8,1
8,1

Hi, Good Day I can see the platform is already partially set up, so the real challenge here isn’t building from scratch—but stabilizing, extending, and preparing it for production, especially with a mixed code/template system like Qixer. I’m M Adeel, and for projects like this, the first step is always proper system understanding before making changes—because issues like listing restrictions or login conflicts often come from deeper role/permission or configuration layers. My approach would be: Perform a full system audit (roles, permissions, workflows, and current customizations) to identify why features like listing creation are restricted Fix core issues and stabilize the platform before adding new functionality Implement the Icelandic login integration cleanly, ensuring it doesn’t conflict with existing auth logic Improve UI/UX and optimize performance while keeping the system maintainable Prepare the platform for production with proper testing, security checks, and deployment setup Since you’re looking for long-term collaboration, I focus on clean, scalable solutions and clear communication—so future development stays smooth and manageable. This is a simplified overview of how I’d approach your project. Would you like to start with a paid technical audit + roadmap before moving into full implementation? Best regards, M Adeel You’re no
$250 USD trong 2 ngày
8,0
8,0

Hello, I have 15+ years of proven experience in similar technology and confidently understand your requirement to stabilize and scale your PHP-based marketplace with secure authentication and clean, maintainable code. -->> Bug fixing & performance optimization -->> Secure auth integration (national ID) -->> Code cleanup & refactoring -->> Cross-browser/device testing -->> Production readiness I follow a clean architecture approach with secure APIs, efficient integrations, and agile workflow for reliable delivery. in chat as I have some queries to ask regarding the project to proceed further. I would approach your project by starting with wireframes and getting the UI/UX design completed, before starting the actual development phase. I am confident to successfully implement this project from start-to-finish. Let's come together and create a platform that is stable, secure, and ready for scale. Thanks & regards Julian
$250 USD trong 7 ngày
8,0
8,0

⭐⭐⭐⭐⭐ Experienced PHP Developer for Website Improvements and Bug Fixes ❇️ Hi My Friend, I hope you're doing well. I have reviewed your project requirements and see you are looking for an experienced PHP developer. You don’t need to look any further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for website improvements and bug fixes. I will identify and fix bugs, integrate the Icelandic authentication system, and enhance your website’s performance. ➡️ Why Me? I can easily improve your website as I have 5 years of experience in PHP development, bug fixing, and code optimization. My expertise includes working with authentication systems, ensuring secure logins, and maintaining clean code. Not only this, but I also have a strong grip on front-end technologies, database management, and testing across devices. ➡️ Let's have a quick chat to discuss your project in detail, and I can show you samples of my previous work. Looking forward to chatting with you! ➡️ Skills & Experience: ✅ PHP Development ✅ Bug Fixing ✅ Code Optimization ✅ Authentication Integration ✅ Database Management ✅ Front-End Technologies ✅ Code Review ✅ Performance Improvement ✅ Testing & Debugging ✅ Secure Session Handling ✅ Template Customization ✅ Website Stabilization Waiting for your response! Best Regards, Zohaib
$350 USD trong 2 ngày
7,8
7,8

I have 8+ years experience with Laravel and marketplace development. I've worked with Qixer-based solutions and can handle the Icelandic eSIM integration, bug fixes, and listing creation issues. My approach: diagnostic audit first, then systematic fixes for auth flows and marketplace features. I can advise on technical architecture and future scaling. Milestone-based payments work well for me. Timeline: Initial analysis in 3-5 days, first fixes within 2 weeks.
$500 USD trong 7 ngày
8,1
8,1

HELLO, I HAVE CAREFULLY REVIEWED YOUR REQUIREMENT FOR COMPLETING AND ENHANCING YOUR QIXER-BASED MARKETPLACE PLATFORM. With 10+ years of experience in full-stack development and working with complex, partially customized systems, I can efficiently take over your current setup, stabilize it, and prepare it for production. APPROACH → I will begin with a full system audit (codebase + server) to identify current issues (like listing creation bug). Then proceed with bug fixing, role/permission corrections, and integration of the Icelandic login system. UI/UX improvements, performance optimization, and security enhancements will follow. Finally, I will handle testing, deployment, and ensure a stable production-ready release. I WILL PROVIDE 2 YEAR FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE. WE WILL WORK WITH AGILE METHODOLOGY AND WILL GIVE YOU ASSISTANCE FROM ZERO TO PUBLISHING ON STORES. I can also provide technical recommendations for future scalability and long-term improvements. I am comfortable working milestone-based and available for long-term collaboration. I eagerly await your positive response. Thanks.
$494 USD trong 9 ngày
7,9
7,9

Hi there, looks like your site is stuck in that messy middle where template edits have introduced bugs and instability and the authentication piece is still missing which can break user trust and flow i can step in to quickly identify and fix the underlying issues clean up the code and make the platform stable and secure while integrating the icelandic login smoothly with your existing system i focus on keeping things maintainable so you wont run into the same problems again i will also make sure everything is fully tested and ready for real users across devices happy to review your site and get this wrapped up properly. Hammad Hassan.
$600 USD trong 10 ngày
7,6
7,6

Hi — this is very similar to marketplaces I’ve built with bidding, escrow, and real-time workflows. ✅Stack: React + Node.js (scalable, fast) ✅Plan: job posting, bidding, chat, milestone escrow, reviews, admin panel — all modular so new categories can be added easily. ✅Timeline: MVP in ~6–8 weeks. Clean code, clear docs, and smooth deployment included. ⁉️Quick question — do you want to integrate Stripe for escrow, or use a custom wallet system?
$500 USD trong 7 ngày
7,5
7,5

Hi I can fix any bugs and improve your site and make it 100% working. 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
$500 USD trong 12 ngày
7,3
7,3

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 trong 7 ngày
6,6
6,6

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!
$250 USD trong 3 ngày
6,4
6,4

Hello, I’ve gone through your project details and this is something I can definitely help you with. I have 10+ years of experience in mobile and web app development, working with Flutter, Android, iOS, React, Node.js, and APIs. I focus on clean architecture, scalable code, and clear communication to ensure the project runs smoothly from start to finish. For your freelance tech marketplace, I propose using React for the front end and Node.js or Laravel for the back end, ensuring performance and security. The platform will allow clients to post jobs, freelancers to bid, and facilitate escrow payments securely, along with real-time messaging and milestone tracking. Here is my portfolio: https://www.freelancer.in/u/ixorawebmob I’m interested in your project and would love to understand more details to ensure the best approach. Could you clarify: 1. Do you already have UI/UX designs or should we create them? 2. Are there any reference marketplaces you admire? Let’s discuss over chat!Could you clarify if you already have UI/UX designs or should we create them? Regards, Arpit Jaiswal
$250 USD trong 25 ngày
7,1
7,1

Hello, I understand you need a skilled developer to finalize and optimize your Qixer-based marketplace, including login integration with the Icelandic eSIM system, bug fixes, UI/UX improvements, and deployment readiness. The platform must be stable, secure, and fully functional for production, ensuring users can create listings and interact seamlessly. I will conduct a thorough system diagnostics, propose optimal technical solutions, and provide recommendations for future development. The work includes backend debugging, frontend refinement, performance optimization, and security enhancements, followed by testing and production deployment. Milestone-based delivery ensures progress visibility and quality assurance. Clarification Questions: 1. Should the Icelandic eSIM integration include both seller and buyer verification workflows? 2. Are there specific UI/UX standards or branding guidelines to follow during redesign and fixes? Thanks, Asif
$750 USD trong 11 ngày
6,3
6,3

Hi I specialize in web development using modern technologies like the MERN Stack. With the comprehensive features you've outlined for the Freelance Tech Marketplace Website, my extensive experience in Backend and Frontend Development, particularly in Laravel and PHP, align perfectly with your requirements. My precise coding practices guarantee a clean codebase, easy deployment, and shorter timelines for your project. The main goal of any marketplace is to create a seamless experience for its users, both clients and freelancers. I understand the importance of user satisfaction and have deep experience building marketplaces that cater to large communities. Though Programming and Tech gigs may be your initial focus, I always factor scalability into my designs. This ensures we can easily integrate additional categories later on, without disruptive refactoring. Reply in few minutes Thanks
$600 USD trong 15 ngày
6,0
6,0

Hi, I understand you’re building a scalable freelance tech marketplace with core flows like job posting, bidding, milestones, escrow payments, and real time communication, with flexibility to expand into other categories later. My approach would be to use React for a responsive front end and Node.js with a structured API for the backend, supported by a relational database for users, jobs, bids, and milestones. I would design modular components for user roles, messaging, and contracts to keep the system extensible. Escrow style payments would be implemented via Stripe with milestone tracking and secure release logic. Real time messaging can be handled via WebSockets, and the admin panel would provide full control over users, disputes, and payouts. Pre delivery testing will include end to end user flow validation, payment and escrow logic testing, messaging reliability checks, and responsiveness across devices to ensure a stable and production ready platform. Clean code and documentation will be provided for future scaling. Best, Justin
$500 USD trong 7 ngày
5,9
5,9

With over 13 years in the industry, I can confidently say that I possess the expertise needed to successfully complete each task outlined in your project description. As a professional full-stack developer experienced in PHP and Laravel, I have optimized and built numerous marketplace websites like yours, ensuring topnotch performance and security. For instance, I not only specialize in effective bug fixing but also in improving the general stability of systems. My thorough approach of identifying hidden bugs and resolving issues caused by template modifications makes for robust results. Additionally, as a proponent of clean structured code; your website will be reliable and easily maintainable. The integration of an Icelandic authentication system with secure login sessions is also within my realm of proficiency. Over the years, I have worked on multiple projects involving complex authentication systems while ensuring that user data is encrypted and secure. 중Your site's production readiness will be ensured through extensive testing on different devices and browsers before completion. Trust me to deliver a performant, stable and highly functional marketplace website that meets all your specifications! By choosing me for this project, you are opting for comprehensive experience, well thought-out strategies and meticulous execution. Let's make your vision become a digital reality!
$500 USD trong 7 ngày
6,5
6,5

Warm greetings! I specialize in building custom marketplaces and web platforms with 9+ years of experience in full-stack development using PHP, Laravel, React/Vue, and secure payment integrations. Here’s how I can help: * Develop a services marketplace for Programming & Tech with client/freelancer accounts, bidding, messaging, and escrow-style payments * Implement profiles, skill tags, ratings, reviews, and portfolio uploads * Build a mobile-responsive front end, robust admin panel, and scalable architecture to add future categories easily * Provide clean, well-commented code, deployment instructions, and brief user documentation Do you prefer Laravel + React for the full stack, or are you open to a Node.js/React combination for better real-time performance?
$500 USD trong 7 ngày
5,7
5,7

Hi, Based on your project description, you require a proficient marketplace website developer. As an experienced professional in multiple technologies such as AWS, PHP, MySQL, JavaScript, UI/UX, and several others, I am confident in my ability to deliver on this project. I've been involved in numerous similar projects for both my local and remote clients and with my knowledge of Network Security, your project will not only be successfully completed but also secured. I am ready to begin work on this immediately and I assure you my utmost dedication until project completion. I look forward to your positive response. Thank you.
$625 USD trong 14 ngày
5,7
5,7

Hi, I can stabilize your PHP site by fixing template-related bugs, improving performance, and preparing it for secure production use. I’ve handled similar projects involving cleanup of legacy PHP code and integration of external authentication systems with proper session handling. My approach includes a full audit, structured refactoring, and seamless integration of Icelandic e-ID login tied into your existing user system. Do you already have API documentation or access credentials for the national authentication provider? I’m ready to start immediately and deliver a stable, secure, and production-ready site let’s finalize this properly. Best Regards, Fizza Nadeem K
$500 USD trong 7 ngày
5,7
5,7

Reykjavík, Iceland
Phương thức thanh toán đã xác thực
Thành viên từ thg 3 21, 2026
$30-250 USD
₹12500-37500 INR
$250-750 AUD
€6-12 EUR/ giờ
₹1500-12500 INR
$2-8 USD/ giờ
₹1500-12500 INR
₹750-1250 INR/ giờ
£250-750 GBP
$10-30 USD
$10-30 USD
₹600-1500 INR
$10-30 USD
₹12500-37500 INR
₹600-1500 INR
£250-750 GBP
$30-250 USD
$30-250 USD
$250-750 USD
₹150000-250000 INR