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i need a dev that could make changes to a web app thats already been developed. Changes will be done now and then. Please send me your rates.
Project ID: 40498807
122 proposals
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Active 3 days ago
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122 freelancers are bidding on average $24 USD for this job

Hi Tell me changes needs to be done and i can do it. I need to go through the source code first. Lets chat
$20 USD in 7 days
8.8
8.8

I can definitely help with the ongoing updates and changes for your existing web app. Since the platform is already live, I'll focus strictly on the specific features or fixes you request without affecting the rest of your current setup. I've handled this type of ad-hoc maintenance for several applications where stability during updates was the priority. Send over a quick summary of the first change you need and I'll give you a time estimate. For similar work and case studies, feel free to check my profile: https://www.freelancer.com/u/microlent Let me know if you'd like me to walk you through the plan. ~ Rajesh
$20 USD in 7 days
8.4
8.4

With over 17 years of experience in web, window, and Android development, I believe my team can be the perfect match for your project. We are experts in ASP.NET C#, Python Scraping and Automation, Crypto Currency, Stock Trading Software, Product Scrapping Services – basically everything you need. In addition to this, we also have extensive knowledge in SQL server database performance optimization and website & software development. What sets us apart from others is not only our vast expertise but also our passion for delivering top-notch quality with 100% customer satisfaction. Operating 24x7, we assure you timely completion of every task with precision. Trust me when I say that your web app could not be in safer hands than ours. So, let's leverage my team's experience to implement those changes on your web app now and in the future while ensuring superior functionality and a seamless user experience. Let's make your vision a reality together. Looking forward to collaborating with you!
$30 USD in 7 days
5.6
5.6

Hi Client, I can see this is less about a one-time build and more about having a dependable developer who can step into an existing web app, understand the moving parts quickly, and keep it stable as changes come in over time. That is exactly the kind of support I provide. I’ve handled ongoing work on custom PHP/MySQL applications, API Development, backend fixes, and frontend adjustments, so I can work through updates cleanly without disturbing the parts already working. I’ll review the current structure, implement the requested changes carefully, and keep communication clear so each update is straightforward. 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 would like, I can also suggest the best way to handle recurring changes efficiently. Best regards, Asad
$30 USD in 3 days
5.8
5.8

I see you need a developer to make changes to an already developed web app which often involves understanding existing code structure and avoiding regressions Handling legacy code without complete documentation can be tricky but with over 10 years of Laravel and PHP backend experience and expertise in Vue.js and React on the frontend, Smart Sols is well equipped to navigate this What specific changes or functionalities are you planning to update or add? Let's schedule a quick call to discuss your needs and how we can help.
$30 USD in 7 days
5.5
5.5

Hi, Yes, I can help with making changes to your existing web app and support ongoing updates whenever needed. With 7 years of working experience in React/Node.js applications, I can handle bug fixes, UI changes, and small feature updates without affecting the current system. Before I share my exact rate, could you please let me know: 1. What kind of changes are usually required (bug fixes, UI updates, new features)? 2. How often do you expect updates (weekly, monthly, or on-demand)? 3. Is it a single project or multiple apps in the future as well? My rate depends on the scope and frequency, but I’m flexible for ongoing work and can also offer a better rate for long-term collaboration. Once I understand this, I’ll share clear and fair pricing with you. Best regards, Abhishek
$20 USD in 7 days
5.5
5.5

Hello, I reviewed your project description. Since the application has already been developed and requires ongoing modifications from time to time, I believe the most important factors are understanding the existing codebase quickly, implementing clean solutions, and maintaining the stability of the system as it evolves. I have experience working on Full-Stack applications, adding new features to existing systems, fixing issues, optimizing performance, and maintaining production environments. I can assist with: ✓ New feature development ✓ Bug fixing and troubleshooting ✓ Performance optimization ✓ UI/UX improvements ✓ SEO and technical enhancements when needed ✓ Long-term maintenance and support ✓ Deployment and server management if required For ongoing collaborations, I generally prefer an hourly rate, although I can also provide fixed pricing for individual tasks after reviewing the scope and requirements. Could you share which technologies your application is built with and what kind of changes you would like to start with? I'd be happy to discuss the details further via chat.
$10 USD in 1 day
4.8
4.8

Hi! The setup where you need changes handled as they come up makes sense—most teams need tweaks and improvements after launch, not a full rebuild. I’ve jumped into live web apps before, fixing bugs, making UX tweaks, and adding features in platforms built with Node, React, and similar stacks. I always start with a quick look at the codebase so I don’t break anything you depend on. Quick question: what tech stack is your app built with? Just want to be sure I can jump in without slowing you down. If you want, I can do a free short code review or list what I’d prioritize in your repo. You can also see other ongoing web projects I support at work.techindika.com. — Pradeep
$20 USD in 7 days
4.7
4.7

I'm Craig, an experienced and versatile developer, specializing in PHP, Node.js, Vue.js, and C# programming. My forte lies in full-stack web development and web scraping. However, my skills aren't limited to just these areas; over the years, I've successfully tackled numerous coding issues across different domains. When it comes to making changes to existing web applications like yours, I make sure to thoroughly analyze the current framework before making any modifications. This way, I can help you avoid any unforeseen errors or complications. My familiarity with Vue.js enables me to design efficient front-ends that not only look great but also provide seamless user experiences. What sets me apart beyond my technical prowess is my commitment to deliver quality under tight deadlines. With me on your project, you can trust that your changes will be completed promptly and correctly. Let's discuss further and determine how we can work together seamlessly to turn your vision into reality.
$30 USD in 1 day
4.8
4.8

Greetings, I am a full-stack developer with extensive experience maintaining and evolving existing web applications, and I would be happy to support your ongoing needs. Let me know the tech stack and the nature of your first few updates, and we can discuss how to get started. Best regards, Samar H.
$15 USD in 2 days
4.5
4.5

Hi there, I came across your project and would like to get started! With over 7 years of experience in website design, development, and app development, I can deliver high-quality results. Let's discuss your requirements—send me a message, and we can go over the details. Looking forward to working with you!
$30 USD in 1 day
4.2
4.2

As a seasoned software engineer and AI specialist, I possess the diverse skill set necessary to tackle the task at hand. My huge experience in backend development, frontend web development, mobile app development, as well as software and web application helps me deliver high-quality changes to your existing web app. My proficiency in API Development and Third Party Integrations is also an added advantage as it will enable me to make seamless adjustments without any disruption. Finally, my experience in automating processes using AI algorithms combined with my passion for problem solving gives me a unique edge in understanding your needs and effectively implementing the desired changes. With this rich background of nearly 20 years joining forces with my adaptability, problem-solving mindset and my knack for staying abreast of cutting-edge techniques and technologies in the industry will be an asset to your project. Let's discuss further!
$10 USD in 7 days
3.9
3.9

I'm Aliza Shaikh, a seasoned Full-Stack Developer with expertise in both Backend and Frontend Development. My primary goal is to bring your web application to life by implementing any necessary changes or updates promptly and effectively. This is further bolstered by my proficiency in various programming languages such as HTML, CSS, JavaScript, PHP, React and more. Additionally, I am proficient in using popular platforms such as WordPress, Shopify which gives me an edge in the field. To add to my skills, I believe in creating engaging and functional digital solutions that are not only visually appealing but also aligned with your real business goals for improved performance and functionality. I adopt a hands-on approach, actively involved from idea inception straight through execution to ensure the final product meets your needs perfectly. One aspect that differentiates me from others is my strong commitment to customer satisfaction right from consistent communication to providing continued support even after the project delivery. With vast experience in Custom Development, SEO-Friendly Builds, Ecommerce and Web Apps Interfaces,I assure you of a high-quality service that will exceed your expectations. Let's transform your web application together into a powerful digital experience!
$10 USD in 1 day
4.1
4.1

Hi, I'd be happy to help maintain and enhance your existing web application. I have experience working on live web applications, handling ongoing updates, bug fixes, feature enhancements, UI/UX improvements, API integrations, performance optimization, and general maintenance. Since your requirements will come up from time to time, I can provide reliable long-term support and ensure changes are implemented quickly and efficiently without disrupting the existing functionality. My approach: • Review the current codebase and architecture • Understand your requirements before each update • Implement changes with clean, maintainable code • Test thoroughly before deployment • Provide clear communication and progress updates Rates: • $5/hour (depending on complexity) or • Fixed-price quotes for individual tasks after reviewing requirements I'm comfortable working with existing codebases and can start immediately. If you share the technology stack and a brief overview of the application, I can provide a more accurate estimate and timeline. Looking forward to discussing your project and becoming your go-to developer for ongoing improvements. Best regards
$20 USD in 1 day
3.0
3.0

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
$10 USD in 1 day
3.1
3.1

<<<✔Consider it DONE✔>>> YO! I understand your project and I'm eager to help. As a seasoned WordPress developer, I've specialized in projects just like yours - taking existing websites and transforming them into robust, functional platforms that align perfectly with the needs of the business. My extensive experience in Frontend and Backend Development using technologies like Vue.js, along with my strong foundations in WordPress, places me in a unique position to deliver the changes you need in a timely and professional manner. What sets me apart is my thorough approach to understanding the project: I learn your goals, dive deep into your existing web app codebase or documentation and from there develop clean, efficient solutions. In addition, since you foresee this being an ongoing project with further changes in the future, you'll appreciate my commitment to creating sustainable processes that evolve with your needs. By hiring me, you are not only getting a skilled developer but also a partner invested in your long-term success. I understand that digital solutions should be practical and effective tools for growth, so I will work tirelessly to optimize your web app to better fit your objectives. Let's collaborate on this project for assured satisfaction. Looking forward to being part of your project! You will surely be impressed by my work! Not sure what the next step is? I offer free and professional consultation -- I'm just a text away. All the very best, Josh
$20 USD in 2 days
2.5
2.5

Hi there, As I have gone through your requirement, I can help with ongoing updates, bug fixes, enhancements, and maintenance for your existing web application whenever needed. My hourly rate is $8-10/hr, and I am flexible and happy to work within your budget for a long-term collaboration. I am available for quick turnaround and can jump in whenever changes are required. Could you share the current tech stack of the application? Let’s discuss the project in detail over chat. Regards, Raghu
$10 USD in 7 days
2.6
2.6

As a seasoned Full-Stack Developer and DevOps Engineer, I'm confident that I have the expertise and strategic mindset to tackle whatever web app changes you need. I prudently patch up code by matching it with a much-needed groundwork. My proficiency in Node.js and PHP stacks combined with Linux administration and Kubernetes (K8s) will ensure that any changes won't compromise the stability of your app. I understand the importance of striking a balance between enhancements and overall functionality, which is why I parallelly focus on optimizing deployment infrastructure. I believe in meticulous planning, clean execution, and thorough testing so it "just works" not only on any individual's machine but essentially in a production environment. My rates mirror the quality of my work - tailored to align perfectly with the delivered service. Shall we discuss the specifics to accommodate all your needs? Whether regular maintenance or sporadic customizations, trust me to bring expertise, commitment, and value to your project with utmost dedication.
$10 USD in 1 day
2.5
2.5

Ongoing changes to an existing web app — this is the kind of retainer work I'm comfortable with. Full-stack across Vue, React, Node, Python, and backend APIs — whatever the stack turns out to be, I can pick it up fast. I work clean: read the existing patterns first, match them, and document what I changed so nothing becomes a mystery later. What's the stack, and what's the first change you need done?
$20 USD in 7 days
2.3
2.3

The description got cut off. Is the work Vue.js frontend, backend API changes, or database work? I have done all three and can start right now. The bid shown is a first guess based on the post. Final numbers depend on what we find when we go through the full scope. Want to send over the list of changes so we can get moving?
$30 USD in 3 days
1.9
1.9

Umbilo, South Africa
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