Full-Stack Developer for WebApp to optimize

@naderkamel

Hi there, i am a js/ts programmer i can create, test, debug, integrate, deploy, and document the js/ts i've an extensive experience with gql, sql/nosql, yaml, bash, aws ,ws and more whatever is required i can code it please contact me Thanks, Nader

@toriquldev123

Hello dear, Greetings from MD. Toriqul Islam! We are a dedicated Web Design & Development team with over 10+ years of industry experience. I’m Engineer Toriqul Islam, an experienced Computer Science & Engineering graduate from RUET. We specialize in building modern, scalable, and user-friendly digital solutions tailored to business needs. What I Offer We help businesses grow online by delivering: • Clean, modern, and responsive website designs • High-performance and scalable web applications • User-focused UI/UX for better engagement and conversion My Technical Expertise We work across a wide range of technologies, including: • Frontend: HTML5, CSS3, Bootstrap, JavaScript, jQuery, Angular, React • Backend: Node.js, PHP, Laravel, .NET, CodeIgniter, Ruby on Rails, Python • CMS & Platforms: WordPress • Database: MySQL, MongoDB • Mobile Development: React Native, Flutter, and more Why choose me? ✔️ Clean, optimized, and well-documented code ✔️ Reusable and scalable components ✔️ On-time delivery with complete requirement fulfillment We are confident in our ability to turn your ideas into a powerful digital product. Let’s discuss your project and make it a success. Looking forward to working with you! Best Regards, Md. Toriqul Islam

@muhammedusmank

Greetings, I see you're looking for a full-stack developer to enhance your web platform with a focus on security, performance, and SEO improvements. With my solid experience in Node.js, Express, and PostgreSQL, I'm well-prepared to tackle the issues outlined in your technical audit. My approach would involve first addressing the security gaps by tightening authentication and hardening API routes. Then, I’d optimize performance by eliminating N+1 queries and improving caching strategies. For SEO, I’ll ensure effective server-side rendering and structured data implementation. Throughout the process, I prioritize clean, maintainable code to avoid any quick fixes that could compromise the integrity of the application. I’m detail-oriented and ready to work from your brief without needing extensive guidance. Best regards, Muhammad Usman Kamran

@dstoych96

Hi, full-stack developer here with 9+ years of experience and BSc in Computer Science. Available for immediate work. Please review my portfolio and reviews and contact me to discuss. Kind Regars!

@sjohn117

Hi, I am Sean, a Full-Stack Developer with over 10 years of experience, specializing in optimizing web applications for performance, security, and SEO using technologies like Node.js, Express, and Next.js. I understand you need an experienced developer to address security hardening, performance issues, and enhance SEO based on a detailed technical audit you've provided. Having worked on similar platforms where I improved security measures, optimized database queries, and implemented effective SEO strategies, I’m well-equipped to enhance your web application. I will focus on fixing authentication gaps, hardening API routes, and addressing performance bottlenecks, ensuring clean and testable code without shortcuts. I can deliver the first milestone in five days, proceeding with your prioritized list of issues. Let's discuss how we can implement these enhancements effectively. Could you clarify any specific areas you want me to prioritize in the security fixes? Thanks, Sean

@serviceaxisgroup

Hi, I can help with hardening your web app while boosting performance and SEO without breaking existing behavior. js App Router code, then run focused regression checks. To reduce risk, I’ll keep changes small, add/adjust tests where relevant, and ensure authentication, middleware, and SSR metadata/structured data are consistent. Which auth gaps and API routes are highest priority in your list, and do you need any VPS-specific deployment tweaks after the SSR and performance updates? If you share your first issue batch, I can begin immediately.

@artemb35

Hi there! I’m genuinely excited about the opportunity to work on your web platform. The focus on security hardening and performance optimization speaks to my experience and passion for building robust applications. Recently, I tackled a project where I revamped a similar platform with a keen eye on security and performance—think tightening API routes while boosting load speeds. One of the standout features I implemented was a smart caching mechanism that dynamically adjusted based on user patterns, significantly reducing server load and improving response times. I believe that kind of innovative thinking can really elevate your platform. I’ve got a solid grip on the tech stack you mentioned, and I can dive right into the prioritized issues you’ve outlined. If you’re interested, I can share some code samples that demonstrate my approach to clean, testable code. Quick question: What specific performance metrics are you hoping to improve the most? Let’s set up a quick Zoom this week to discuss how I can add value to your project. Looking forward to chatting! Best, Artem

@birspetech

Drawing on my extensive experience as a Full Stack Developer, I can confidently affirm that I am the ideal fit for your project. My solid grounding in Node.js and Express, coupled with my proficiency in Prisma ORM and PostgreSQL shall enable me to adeptly resolve all backend challenges encompassed in this assignment. Detail-orientation is a key aspect of my work ethic, hence be assured that I will go through each issue meticulously, ensuring every file reference is attended to and every amendment is carried out without impeding any other aspect of your application. My background as a PHP developer gives me an edge in troubleshooting and the ability to unravel bugs which overlaps with the agility needed for good SEO. My comprehensive understanding of security protocols (auth, CORS, JWT, rate limiting) combined with my commitment to rendering clean, testable code will definitely make certain your platform is robust and resistant to vulnerabilities. Lastly, being a business owner myself has equipped me with the perspective to comprehend client needs accurately and provide solutions accordingly. I understand the value of timely delivery and client satisfaction and assure you my services are routed towards achieving these goals. Given the opportunity, I would utilize my skills not only to meet but surpass your expectations in hardening security, enhancing performance optimization, and improving SEO prowess in your web application.

@aaronrobs

⚡️Quality is Guaranteed⚡️ I can help elevate your web platform by addressing all security, performance, and SEO issues outlined in your audit with precision and expertise. Core Deliverables➡️ • Secure API routes, fix authentication gaps • Optimize database queries and caching • Enhance server-side rendering and metadata • Clean code with dependency conflict resolution My Approach➡️ • Analyze your detailed audit for targeted fixes • Implement robust, testable solutions without shortcuts • Prioritize improvements to maximize impact • Communicate proactively and deliver on scope I am committed to delivering a high-quality product that meets your goals. I look forward to the opportunity to discuss this project further. Kind regards, Aaron Roberts

@solutionsplayers

As a passionate Full Stack Developer with over 6 years of experience, I believe I'm the perfect fit for your project. My expertise in Node.js aligns perfectly with your backend requirements and my prior experiences with Laravel and React JS make me well-versed in a robust architecture. Quality, clean code is my priority, right from the beginning, to ensure scalability and performance. I understand the value of reading and implementing a written brief accurately. Moreover, my extensive experience in working with CRMs, RESTful API Development and database management adds an extra layer of comprehension for your project specifications. I've worked extensively on authentication, data optimization, and security which make up most of your project description. A noteworthy addition that makes me stand out is my proficiency in deploying on VPS - an area you've indicated as a nice-to-have. Building long-term relationships by providing ongoing support and timely fixes is my forte; this guarantees not only successful delivery but also performance optimization even beyond the scope of the initial job. When chosen for your project, you can rest assured that it will be delivered within time limits, with regular progress updates and top-notch maintenance provided post-launch. Let's boost your website's performance together!

@dorofiip

Hey, I can start now. ✅ I’ve worked on something very similar. What really matters here is addressing security gaps, optimizing performance, and improving SEO without the need for discovery work. Most projects fall apart when not following a prioritized list of issues. In a recent project, I enhanced backend security by implementing JWT authentication and hardened API routes. While I haven't worked with Prisma specifically, I have extensive experience with PostgreSQL and similar ORMs. I would approach this by first addressing security vulnerabilities, then focusing on performance and SEO enhancements. Let's chat! -Dorofii

@sgodeveloper

Hi, I’m a Full-Stack Developer and Solo Developer with expertise in web, mobile, and backend development. I can deliver a high-quality, scalable, and user-friendly solution that meets your requirements within the agreed timeline. Working directly with me means faster communication, quicker development, and full attention to your project from start to finish. I focus on clean code, modern design, and long-term maintainability. Ready to start immediately and deliver as fast as possible. Best Regards, Shubham Goyal Full-Stack Developer

@mikhailmikhail80

Hi, I read your project carefully and I can deliver exactly what you need. I can start immediately and show you the first preview in a few hours. Let’s discuss the details. You name your price. Top quality guaranteed. With 10 years of experience in this field — your satisfaction is our priority. Although this is our first project on Freelancer.com, we have a proven track record and will deliver the highest quality at the most competitive price.

@jdbsoftech

Hello Dear, I am Jagmohan Kumawat, a multidisciplinary digital expert with 5+ years of experience building luxury websites, mobile apps, digital marketing, automations, intelligent systems and high impact creative assets. My focus is always on delivering results with precision, style and longterm scalability. Signature Excellence • Luxury Websites & Web Systems • iOS & Android Mobile App Development • Custom API Integrations • Advanced Workflow Automation & AI Systems • Salesforce CRM Setup, Flows & Cloud Integrations • Professional Branding & UI/UX • Social Media Content & Digital Strategy • E-Commerce Systems & Automation • Premium Video Creation & Cinematic Editing Technology & Creative Mastery Node.js | React | Laravel | WordPress | PHP | JS | Shopify | Android/iOS | Salesforce Cloud | CRM Automations | REST APIs | Firebase | AI Solutions | Figma | Adobe Suite (Illustrator, Photoshop, Premiere Pro, After Effects) Canva Pro | AutoCAD | Motion Graphics & AI Video | Digital Marketing | Content Writer | SEO/SMO I’m ready to take your project forward with precision, creativity and technical excellence. Feel free to share more details. I will prepare a customize plan for your exact needs. Best Regards Jagmohan Kumawat

@Aishwaryaflutter

Hii sir i have more then 4 Year of experience in MERN STACK and i can do your task i have much knowledge in this work so please connect with me to see my work

@roell3

Hi, I work across Python backends and production web systems, with hands-on experience in API design, data layers, and performance tuning in PostgreSQL-backed services. I’m comfortable stepping into an audited codebase and executing against a defined backlog. The main challenge here is preserving system stability while applying targeted fixes across auth, query behavior, and rendering paths. Changes in middleware and database access patterns can introduce subtle regressions, especially under concurrent load. There’s also risk in aligning SEO improvements with existing routing and caching behavior without degrading performance. Are there staging environments with production-like traffic patterns? How are auth flows currently validated and tested? What monitoring or error tracking is in place during these changes? Happy to take this forward.

@os5733203

Hi, I have experience with technical SEO, performance optimization, and backend/frontend improvements. I’m comfortable working from a detailed audit, implementing fixes systematically, and ensuring clean, maintainable code. I’d be happy to review the scope and discuss the implementation plan. Best regards, Omar

@aprkdream

Hi, I've reviewed the project description and understand that you're looking for a skilled full-stack developer to optimize the web platform's security, performance, and SEO. First, I'll review the prioritized list of technical issues and assess the feasibility of the recommended fixes. I'll then use my experience with Node.js, Express, and Prisma to identify the best approach for addressing authentication gaps, hardening API routes, and optimizing middleware configuration. For performance optimization, I'll use my knowledge of database query optimization and caching techniques to eliminate N+1 database queries, optimize indexes, and improve caching. Additionally, I'll ensure proper server-side rendering improvements and structured data for SEO enhancements. I've worked with similar technologies in the past, including Laravel and React, and I'm confident in my ability to deliver high-quality code. I'll ensure that the code is modular, easy to maintain, and follows best practices. I'd like to clarify that the list of technical issues includes file references and root cause analysis. Could you please share the detailed technical audit report so I can review it in detail and provide a more accurate estimate of the work? I'm excited about the opportunity to work on this project and enhance the web platform's security, performance, and SEO.

@elijahhmonreal

Hi there, I just read your posting. It sounds like you need an expert Shopify developer who can handle advanced custom coding work and help implement complex functionality correctly on your store. I am a software engineer with 10+ years experience in web development and eCommerce platforms. Building custom Shopify functionality, modifying themes, debugging difficult issues, and implementing clean scalable code is what I specialize in. I can work with you to review the current issue in your Shopify store, identify the best technical solution, and implement the coding changes safely without breaking existing functionality. Whether it involves Liquid templates, Shopify APIs, custom sections, app integration, JavaScript, or performance optimization, I can help you complete the work professionally. Let me know if my profile looks interesting, and we can set up a time to talk. Best regards, Elijah M.