
Completed
Posted
Paid on delivery
Hey! I have a MERB + [login to view URL] platform that's live but has some bugs and performance issues. I am looking for an inividual developer to help fix frontend/backend problems, optimize 3D scenes, and tidy up the code. What I need: - Debug existing issues - improve 3D render performance - ensure APIs works properly - Clean up and document fixes I think it will not take you many time to resolve this if you are familiar with MERN + [login to view URL], especially on [login to view URL] for 3D rendering. If you have MERN + [login to view URL] experience and can jump in quickly. Looking forward to working with someone who can make this platform solid again.
Project ID: 40268213
142 proposals
Remote project
Active 1 mo ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs

Hello, how are you? I have strong experience with MERN + [login to view URL] and can jump in right away to clean things up. I’ll debug the existing frontend/backend issues, optimize your 3D scenes (reducing draw calls, improving asset loading, fixing memory leaks, tuning lights/materials), and make sure all APIs are stable and properly handled. I’ll also refactor messy areas, document the fixes clearly, and leave the codebase in a much more maintainable state. Let’s get your platform running fast and solid again. Thanks! Dennis
$100 USD in 7 days
2.0
2.0
142 freelancers are bidding on average $147 USD for this job

Hello, As a seasoned developer with over 12 years of experience, I am well-versed in your desired tech stack of MERN and Three.js. My extensive experience in CSS, JavaScript, React, and Software Architecture not only provides me with the technical proficiency for your project but also the necessary skillset to identify your platform's existing issues, optimize its performance, and align overall APIs functionality. Apart from addressing these concerns thoroughly, I am committed to deliver clean and well-documented code as it's a key component for any successful application's ongoing maintenance and future developmental endeavors. At CodeNomad- we value our client's time and business continuity greatly; hence you can rely on me for swift resolutions without compromising on quality. Furthermore, my proficiency extends beyond resolving bugs as I hold expertise in various enterprise-level domains such as Supply Chain, Inventory Management, SaaS-based Solutions, etc. This brings a unique perspective to my problem-solving approach that will be highly beneficial for your platform. In addition to this, I hold a result-oriented mindset prioritizing the efficiency and effectiveness of my work. Thank you
$250 USD in 5 days
7.4
7.4

Hi there. I am an AI-driven full-stack engineer with over 10 years of experience. This is my profile and shows my experience and knowledge about AI. https://www.freelancer.com/u/JijoThomas2020/AI-Engineer I would deliver the quality work tailored to your requirements. Looking forward to your message. Thank you, Jijo
$140 USD in 7 days
6.7
6.7

Hello Dear! I write to introduce myself. I'm Engineer Toriqul Islam. I was born and grew up in Bangladesh. I speak and write in English like native people. I am a B.S.C. Engineer of Computer Science & Engineering. I completed my graduation from Rajshahi University of Engineering & Technology ( RUET). I love to work on Web Design & Development project. Web Design & development: I am a full-stack web developer with more than 10 years of experience. My design Approach is Always Modern and simple, which attracts people towards it. I have built websites for a wide variety of industries. I have worked with a lot of companies and built astonishing websites. All Clients have good reviews about me. Client Satisfaction is my first Priority. Technologies We Use: Custom Websites Development Using ======>Full Stack Development. 1. HTML5 2. CSS3 3. Bootstrap4 4. jQuery 5. JavaScript 6. Angular JS 7. React JS 8. Node JS 9. WordPress 10. PHP 11. Ruby on Rails 12. MYSQL 13. Laravel 14. .Net 15. CodeIgniter 16. React Native 17. SQL / MySQL 18. Mobile app development 19. Python 20. MongoDB What you'll get? • Fully Responsive Website on All Devices • Reusable Components • Quick response • Clean, tested and documented code • Completely met deadlines and requirements • Clear communication You are cordially welcome to discuss your project. Thank You! Best Regards, Toriqul Islam
$85 USD in 3 days
6.0
6.0

Hi, I’m a full-stack developer with strong experience in MERN and Three.js. i can quickly review your existing codebase, fix frontend and backend issues, optimize the 3D scenes for better rendering performance, and make sure all APIs are working properly. I will also clean up the code and document the fixes so everything is easier to manage going forward. If you share access, I can jump in right away and help make the platform stable and smooth again. Let's start and make it. Thanks!
$230 USD in 5 days
4.6
4.6

**DO NOT PAY ME UNTIL I COMPLETE! :)** Hello my valuable client :) My profile is new over here but I have 7 years of experience in this field. I have completely understood about your project. Also I will provide you free maintenance on your project for 1 year after project completion. I can definitely complete this in your timeframe. Give me one chance to prove myself. Hit the chat button to get started. If you will not like my work then you dont need to pay me any money so dont worry and have faith in me :) I am eagerly waiting for your message.
$150 USD in 7 days
4.0
4.0

Hi there, my name is Ritik Garg and I'm a Full-Stack/Backend Developer from India. I have over 5 years of experience working with Python, Django, Restful APIs, Data Mining, Flask, Scrapy, Selenium, Flask, Node JS, Angular, React, AWS, DevOps, Azure, request, threading and selenium. My ultimate goal is to provide my clients with more than 100% satisfaction by implementing their ideas and helping their business thrive and grow. I always make sure to understand my clients' needs accurately and recommend the best approach for their project. I am always ready to take on any project and deliver it to the best of my abilities. Here are my core skills: - VueJS | JavaScript | Angular | ReactJs - NodeJS | Python - Bootstrap | CSS | CSS3 | HTML | HTML5 - Django | Flask - MySQL | MongoDB | SQLite | Postgres SQL - AWS, EC2, S3 DevOps Deployment
$140 USD in 7 days
3.5
3.5

Hey, I can start right now. I have just similar experience. What really matters here is tackling the performance issues in 3D rendering. Most projects face challenges with optimizing 3D scenes and ensuring smooth API functionality. While I haven't worked on this exact setup, I've successfully optimized 3D rendering in similar projects using MERN stack. I'd approach this by first identifying and debugging existing issues, then focusing on enhancing render performance and API functionality. I will share my related works in the private chatting. Let's discuss more details? Best,
$160 USD in 5 days
2.2
2.2

Hello there, I will do this job I have experiance of front-end and back-end I will fix error let us discuss further detail thanks Regards Baqir Hussain Jafri
$140 USD in 12 days
1.0
1.0

Hi there! Just to clarify, do you need the 3D scene optimizations to also support mobile devices smoothly? Regardless, this is definitely something that I feel confident delivering on, given my past experience. I would love to discuss your project further! Looking forward hearing from you. Kind Regards, Corné
$100 USD in 14 days
0.9
0.9

We are pleased to submit this proposal for the development of your software solution. Our team specializes in designing, developing, and deploying scalable, secure, and user-friendly applications tailored to business needs. We understand that your goal is to build a reliable and efficient system that improves operations, enhances user experience, and supports future growth. Our approach ensures high-quality development, timely delivery, and ongoing support. 2. Project Understanding Based on the provided requirements, the project involves: Designing and developing a custom software application Creating a responsive and intuitive user interface Backend development and database integration API integrations (if required) Testing, deployment, and post-launch support We will follow an agile development methodology to ensure flexibility and continuous improvement throughout the project lifecycle.
$140 USD in 4 days
0.0
0.0

Hello, hope all is good. I understand the main goals and will ensure the final result that matches your expectations. I have 10+ years of experience in JavaScript, Software Architecture, React.js, Full Stack Development, Typescript. I have completed similar projects. Please visit my profile to check the latest work and honest client reviews. If this sounds good, connect in chat and we can start. Looking forward.
$140 USD in 7 days
0.0
0.0

Hi! I can deliver this project quickly and professionally. My rate is competitive and I guarantee quality work. Ready to start immediately.
$300 USD in 7 days
0.0
0.0

Hi there, I’ve worked in MERN-based teams where clean architecture, proper task division, and steady delivery are key. Whether it’s feature development, bug fixes, or scaling existing modules, I’m comfortable contributing effectively within a multi-dev setup. What I can help with • React frontend development and refinements • Node.js/Express API development • MongoDB schema design and optimisation • Clean Git workflow and collaborative development If helpful, I can walk you through similar MERN projects from our portfolio. One question: is this role focused more on frontend, backend, or full-stack contribution across both?
$140 USD in 7 days
0.0
0.0

Jeddah, Saudi Arabia
Payment method verified
Member since Aug 5, 2025
$10-30 USD
$30-250 USD
$250-750 USD
$250-750 USD
£200-250 GBP
$250-750 USD
$374 AUD
₹1500-12500 INR
£1500-3000 GBP
₹12500-37500 INR
₹1500-12500 INR
$10-30 USD
₹100-400 INR / hour
₹750-1250 INR / hour
€1500-3000 EUR
$250-750 USD
₹1000-2000 INR
$200-500 USD
$30-250 USD
₹1500-12500 INR
$10-30 USD
₹1500-12500 INR
$30-250 USD