Urgent - 1~2 hrs - $ 500

@Microlent

Hello Marcio O., I am Dr. Rajesh Rolen, PhD in Computer Science & Engineering, with experience of over 20+ years in AngularJS, Angular, MongoDB, NoSQL Couch & Mongo, MERN, Node.js, Express JS As a preferred freelancer in the top 1%, I have done 400+ projects here on freelancer.com, I have 4.9 ratings out of 5 on average, which showcases my quality of work and timely delivery. Key Highlights: - Free Hosting Support on the Cloud or any desired platform. - Free 3 months of post-delivery support to ensure that our client doesn’t face any challenges after the launch of the project. - Free Dedicated tester on projects to ensure quality delivery, so clients don’t need to act as a tester. - 10+ Years experience UI/UX team to ensure intuitive UI. Portfolio: https://www.freelancer.com/u/Microlent Please open the chat and send me a message, so we can have a more detailed discussion about the project to give you the project timeline and cost. Thank you for considering my services. I look forward to engaging in a productive conversation and understanding how I can be of assistance in bringing your project to life. Regards Rajesh Rolen

@DeveloperStation

Hi Marcio, I’ve been working with the MERN/MEAN stack since 2018 and have developed multiple web applications using Angular, React, Node.js, Express, and MongoDB. I also have extensive experience with FastAPI and have integrated it with front-end frameworks like React and Vue. In addition to front-end and back-end development, I’ve worked extensively with CI/CD pipelines, server management, and cloud services like AWS and DigitalOcean. I’m a strong advocate of Agile methodologies and believe in delivering fully functional products rather than just completing tasks. One of my recently developed products, Descripio, is a web app that uses AI to generate optimized Amazon product descriptions by analyzing existing product reviews. 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

@dfordesigners

Good day Marcio O., I’m a passionate and skilled iOS & Android app developer, ready to bring your app idea to life! I’ve reviewed your project Urgent - 1~2 hrs - $ 500 and fully understand what you're looking for. With over 5+ years of experience and a proven track record in custom mobile app development, I can build a fast, user-friendly, and fully functional app that meets your goals—and gets approved on both the App Store and Google Play. ✅ Native & Hybrid App Development ✅ Play Store/App Store Publishing ✅ Scalable Code, Intuitive UI, and Strong Performance ✅ Experienced with Flutter, React Native, Kotlin, Swift & more Featured Apps: YouSee Perfume—iOS Flying Horse Game—Android Horizon Chase—Android Gym Fighting Game—Android View my full profile: https://www.freelancer.com/u/dfordesigners Let’s chat and get your app moving forward today! Thanks & best regards, Kausar Parveen

@johnnier3

Hi Marcio! Just read your posting, and it looks like you need an experienced web developer to resolve a bug in your MEAN/MERN stack application and FastAPI. I have extensive experience with MongoDB, Express, Angular/React, and Node.js, along with strong debugging skills. I can quickly identify and resolve issues to get your application running smoothly within the 1-2 hour timeframe. If this sounds like a good fit, please respond so we can discuss the details further! Best regards,

@nitishk277

Hey, I’m experienced with MEAN/MERN, FastAPI, and n8n, and can quickly debug and fix your issue within 1–2 hours. Could you confirm if the bug is on the frontend, backend, or API layer, and whether error logs are available? I can start right away and ensure a clean, tested fix without affecting existing functionality. Let's connect. Thanks!

@nbugarskifl123

Hi, Marcio O. thanks for posting. Just checked job description that I need a skilled developer to resolve a code bug in my web application built on the MEAN/MERN stack and Fastapi I have carefully checked your requirements and could easily work with you. I would like to let you know that I have expert and commercial experience in Node.js, MERN, NoSQL Couch & Mongo, Angular, AngularJS, FastAPI, MongoDB and Express JS. My skills are: Laravel, PHP, Codeigniter, Core PHP, HTML, CSS, and Javascript. Here are my other skills Front End: UI/UX Designer, Graphics Design, Vue.js, React, react.js, Node.js, Angular.js, HTML 5, CSS 3, Bootstrap, JavaScript, JQuery, Basic Photoshop, Figma, Webflow. Back End: PHP, Laravel, Codeigniter, Cake PHP, Ajax, jQuery, MySQL, Python. My work Capability : Responsible for communication for more than 10 hours each day. 8 Hours/Day and 40 Hours/Week. Daily or Weekly update.I am ready to work in a customized time zone i.e. EST/IST time zone and so. Waiting for your response!! Regards!

@shawanay

Hello, I have strong experience with MEAN/MERN stack, FastAPI, and I specialize in quick debugging and clean fixes. For your issue, I will efficiently identify the root cause, apply the solution without affecting other modules, and ensure smooth functionality through testing. Since the task is urgent, I’m ready to start immediately and deliver results within the required timeframe and budget. Thanks

@zhens2

I understand that time is of the essence when it comes to resolving code bugs, which is why I'm the perfect fit for your urgent web application issue. With over 8 years in Full-Stack Development, focusing on projects using MEAN/MERN stack, Fastapi, and n8n, I have extensive experience and strong skillset to tackle any challenge thrown my way. During my career I have developed a solid proficiency in working with MongoDB, Express, Angular/React, and Node.js. This knowledge base paired with my fast problem-solving skills ensures that I can actively debug your code issue and provide a quality resolution within the target timeframe of 1-2 hours. In addition to efficient bug resolution, my commitment to building scalable applications will help fortify your project against future issues. Having worked with startups, enterprises, and global clients throughout my career, I've dealt with a broad spectrum of challenges which has sharpened my abilities to deliver robust solutions. I look forward to channeling this expertise into resolving your current issue satisfactorily. Let's work together!

@yevhenz916

Hello, I've just read your job description and it seems I am a great fit for this job. I work well under pressure. I guarantee the qualification of my result and try hard to satisfy customers in time. Let's discuss more details over chat. I'm looking forward to hearing back from you! Best Regards.

@Engumer480

Hello, I can help with your urgent bug fix. I have extensive experience with the MEAN/MERN stack and FastAPI, and I specialize in diagnosing and resolving critical bugs quickly. I understand the urgency and can dedicate the time to pinpoint and fix the issue within your 1-2 hour timeframe. I'm confident in my ability to handle this. Would you be available for a quick call to discuss the bug's specifics and get started?

@bytesblitzz

Hi Marcio, Your project instantly caught my attention — building a mobile and/or web application that’s not only functional but also delivers a seamless user experience is exactly where our team at BytesBlitzz thrives. We don’t believe in cookie-cutter solutions. Every app we design and develop is tailored to the end-users’ journey — from sleek interfaces in Figma & Adobe XD to robust development using custom code and platforms like Shopify, WordPress, Webflow, and Node.js. Here’s what working with BytesBlitzz means for you: -- Unlimited design iterations until it feels “just right” -- A dedicated project manager for daily updates and clarity -- Agile development with scalable architecture (for both mobile & web) -- 24/7 support with timely delivery -- Free deployment + 45 days of post-launch support -- Rigorous QA (manual + automation) before every milestone -- Final video tutorials so your team can manage everything with ease We’ve helped brands transform ideas into user-loved apps & websites that perform beautifully across devices — and we’d love to do the same for you. Let’s connect to discuss your vision in detail — I’m confident we can craft something truly impactful together. Warm Regards, BytesBlitzz ••••••••••• P.S.: Full portfolio will be shared in chat •••••••••••

@xuezhe315

Dear, As an experienced developer who has spent a substantial amount of time working with the MEAN/MERN stack, FastAPI, and n8n, I am well-suited to tackle your code bug efficiently and rapidly in 1~2 hours. My extensive understanding of MongoDB, Express, Angular/React, and Node.js combined with my robust problem-solving and debugging skills enable me to identify and rectify issues swiftly without compromising on quality. For years, I've been honing my expertise in modern web application development and have consistently delivered results even within tight deadlines. Your project undoubtedly necessitates the exact kind of proficiency I bring to the table. As a software engineer who has shepherded over 50 full-scale projects to fruition, I have a proven track record of delivering meticulous work while prioritizing business-driven solutions that align with your objectives. I promise clear communication throughout the process so you'll always be updated about my progress. If chosen for this task, anticipate nothing less than proficient resolution of your bug within the given timeframe. Let's get your web application back on track!

@mderli

Hello, I am highly interested in your project. Since the issue is urgent and tied to a MEAN/MERN stack with FastAPI and possibly n8n integrations, my first step would be to reproduce the bug in a controlled environment by checking logs, API responses, and recent commits. I would then use targeted debugging on the Node.js/Express or FastAPI layers to isolate whether the problem originates in the backend API, database queries with MongoDB, or in the Angular/React frontend state management. Once identified, I’d provide a quick but stable fix, ensuring no regressions through minimal testing. Could you clarify if the bug is related to API communication between FastAPI and the frontend, or is it more of a database query issue in MongoDB? Do you have error stack traces, or should I set up detailed logging before diving into the patch? Is there an n8n workflow dependency that may be affecting request flow? Having this clarity would allow me to address the problem effectively within your timeframe. I look forward to hearing from you. Thank you.

@paul612

As an experienced full-stack developer, specialized in both MEAN/MERN stacks and Fastapi & n8n backend services, I'm equipped with the necessary skills to take on your project and fix the code bug swiftly and effectively. With over five years of experience in web application development, I've honed my problem-solving and debugging skills to ensure optimum functionality under time-sensitive pressure. What sets me apart from other developers is my focus on building intelligent systems with a data-driven architecture. Your project will thus not only result in a resolution for the code bug but also provide strong foundations for future optimization and automation. My proficiency in MongoDB, Express, Node.js, Angular/React along with my AI integration expertise using TensorFlow and PyTorch would prove to be valuable assets for your project. Choosing me means relying on a developer who truly understands that technology is meant to address real-world issues. My experience spans across diverse industries including e-commerce, healthcare, and education – fueling my ability to translate complex technicalities into tangible competitive advantages for businesses. I'm eager to start working on your project right away, utilizing my deep understanding of AI-powered web applications to create a solution that precisely addresses your unique needs. Let's make the most of this opportunity together!

@JijoThomas2020

Dear Client, I can quickly debug and resolve your issue in a MEAN/MERN + FastAPI stack application within 1–2 hours. I have deep experience with MongoDB, Express, React/Angular, Node.js, and Python frameworks, including FastAPI and workflow automation tools like n8n. My approach: 1. Immediate assessment: Review error logs, recent changes, and stack trace to identify root cause. 2. Targeted debugging: Use breakpoints and console logging in both Node.js and FastAPI layers to isolate the bug (API endpoints, DB queries, or UI state handling). 3. Fix & verify: Implement the solution, run regression tests, and confirm everything works across front-end, back-end, and API integration. 4. Short report: Explain the issue, applied fix, and any recommendations to prevent recurrence. I’ve resolved critical production issues for SaaS apps and APIs under tight deadlines. Available to start immediately via live session or remote access. Best Regards Jijo T.

@wasifmuneer

Hi there, I'd love the opportunity to connect and discuss your project in detail—feel free to reach out via chat anytime. I'm a full-stack developer with strong experience in building both web and desktop applications. I’m confident I can manage and deliver your project efficiently and on time. In addition to my development background, I’m a Web3 enthusiast actively learning smart contract development through Updraft/Cyfrin, and I have hands-on experience in DevOps, giving me a broader perspective on project deployment and scalability. My technical expertise includes: MERN / MEAN Stack: Extensive hands-on and team leadership experience, ensuring smooth front-end to back-end integration. .NET Core & Angular: Implemented various data visualizations using D3.js, integrated complex APIs, and developed dynamic, responsive applications. Azure Logic Apps & SharePoint: Built multiple workflow automation solutions; also familiar with PowerApps development. Salesforce Development: Developed Apex triggers to interact with MSSQL via custom .NET APIs. Created Visualforce pages to fetch and display external API data. Performed CRUD operations on both standard/custom Salesforce objects. Conducted R&D on Salesforce Flows for automation (with some custom object limitations). I bring a full-lifecycle development mindset and enjoy solving real-world business challenges through code. Looking forward to hearing from you! Thanks!

@andreyt44

Hello Marcio, I hope you're doing great! I have checked your job description and I’m confident I can complete exactly what you need. With extensive experience in the MEAN/MERN stack, including proficiency in MongoDB, Express, Angular, Node.js, and Fastapi, I am well-equipped to resolve the code bug in your web application swiftly. My strong debugging and problem-solving skills will ensure that I tackle the issue efficiently, minimizing any downtime. Given the urgency of the task and my familiarity with the technologies required, I think this job is an ideal match for my skills and experience. Please send me a message so that we can discuss more. Best regards, Andrii

@yuriik14

(✪‿✪) (✪‿✪) (✪‿✪) (✪‿✪) (✪‿✪) (✪‿✪) Please contact me. Let's work together. Thank you (✪‿✪) (✪‿✪) (✪‿✪) (✪‿✪) (✪‿✪) (✪‿✪)

@romans018

Hello, I have hands-on experience in Fastapi and MEAN/MERN stack. I am very confident about this project. I am ready to start immediately. Thanks,