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Project ID: 40710459
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54 freelancers are bidding on average $24 USD for this job

Hi there, There’s a clear signal here: you need someone who can turn the software changes into something stable, clean, and easy to continue evolving. I’ve handled custom PHP/MySQL and business software fixes where the goal was not just making edits, but preserving structure so the next updates stay manageable. 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. I can review the current codebase, identify the safest change path, and implement the updates with clear communication throughout. If you’d like, I can start by checking the current flow, the affected modules, and the expected outcome so we avoid rework. Which part of the custom software needs the change first so I can estimate the safest implementation path? Best regards, Asad
$30 USD in 3 days
8.2
8.2

Hi, I have read your entire project requirements. I will provide you with custom software changes within your budget. I have more than 12 years of experience and have completed 150+ projects in design and development. I am very interested in this job opportunity. I am available to start immediately and can deliver high-quality work within your timeline. Please join the chat so we can discuss further and get started right away.
$20 USD in 7 days
7.6
7.6

I have 10 years of experience in desktop and mobile app development. Can we discuss the project further in chat?
$20 USD in 7 days
7.3
7.3

Hello Sir, I have already worked on similar types of website and software development projects and I am confident that I can successfully handle your project. I am a full-time freelancer with **17+ years of experience** in web development, software development, automation, and API integrations. My expertise includes: * ASP.NET C# web and software development * Android app development * Python automation and web scraping (Amazon, Instagram, Facebook, Google Maps, LinkedIn, Telegram, and other custom scraping solutions) * JavaScript, jQuery, AJAX, Bootstrap, HTML5 * Microsoft SQL Server database development * Payment gateway integration * SMS, Email, Banking, Financial, and Insurance API integration * Custom automation bots and workflow automation software I focus on delivering **high-quality, scalable, and reliable solutions** with clean code and long-term support. Please contact me in private chat so we can discuss your requirements in detail. I can also show you a **demo of similar projects** I have completed. Looking forward to working with you. Thanks & Regards
$10 USD in 1 day
6.3
6.3

Hi I have gone through the requirements. Good experience in creating custom web applications using PHP. Will do this tasks. I'm available to start now. Please contact for further discussions. Regards, Mohan
$20 USD in 1 day
6.3
6.3

Hi, I noticed that your project involves custom software changes, and I'm excited to bring my expertise in PHP and API Development to ensure these modifications are executed seamlessly. With a strong background in software development, I understand the importance of precision and efficiency in implementing changes that meet your specific requirements. My approach is to collaborate closely with you to fully understand the scope and intricacies of the modifications needed, ensuring that the final result aligns perfectly with your vision. Could you please share more details about the specific changes you're looking for in your software? This will help me tailor my approach to best meet your needs.
$10 USD in 7 days
5.7
5.7

Hi, I can handle the complete Meta WhatsApp Business API setup through Wati or AiSensy, including account setup, 18,000 lead import, multilingual templates, automation workflows, opt-out handling, campaign setup, and mobile app configuration. I’ll make sure the complete flow is tested properly and follows Meta’s messaging and account-quality requirements. I’d be happy to discuss the remaining details with you if selected. Best regards, Muhammad Atif LA
$20 USD in 1 day
5.8
5.8

The real challenge here is making changes to software you didn't write without breaking existing functionality or dependencies. I'd need to see the codebase first to confirm the best approach, either full access to the dev environment or just the specific modules and change requirements if you prefer keeping it scoped. Once I take a look I can debug, refactor, or extend whatever needs updating in PHP or C#, run tests to catch side effects, and document the changes properly. I've worked through similar reverse engineering and modification projects before, most recently rebuilding server infrastructure and API layers for clients who needed fast turnarounds without disrupting production. You can see some of that at ffulb.com. If you can share access or details on what specifically needs changing, I can assess scope and get moving.
$25 USD in 2 days
4.8
4.8

Hello there, I understand that you have custom software that requires changes. I have 5+ years of experience in software development, including PHP, C# Programming, and API Development. I can review the software and work on implementing the necessary changes efficiently. Thanks, Manisha
$20 USD in 1 day
4.4
4.4

Hi there. Would like to receive some details about the project. As you understand, the bid amount and delivery time highly depends on your requirements, so I can give you more precise estimate after I understand what is required. Take care.
$20 USD in 7 days
4.4
4.4

Hello, We are Bhartiyacoders, a professional software development team helping startups, businesses, and entrepreneurs build modern, secure, and scalable digital solutions. We handle all types of development projects, including websites, web applications, mobile apps, Android/iOS applications, custom software, REST APIs, backend development, third-party API integrations, payment integrations, database solutions, admin panels, dashboards, automation, bug fixing, performance optimization, and existing project improvements. Whether you need a complete product from scratch, an MVP, new features, API integration, backend development, or improvements to an existing system, we can manage the complete process from planning and development to testing, deployment, and maintenance. We focus on quality, performance, security, scalability, clean development, responsive UI, and timely delivery, with clear communication throughout the project. Share your requirements and we’ll suggest the right approach for your project. Let’s build something reliable and successful together. Best Regards, Bhartiyacoders
$20 USD in 1 day
4.0
4.0

Hello, I reviewed your project for making changes to the existing custom software. I will first inspect the current code and trace the affected functions before modifying anything. PHP or C# debugging with focused testing will help preserve existing functionality while implementing the requested changes safely. The final delivery will include the completed changes, testing and clean updated source code. Best Regards, Sara
$100 USD in 1 day
3.9
3.9

Hi, The main problem seems to be the need for modifications to your current software solution. What specific changes are you looking to implement? Here's how I'd do it: - Review the existing codebase to identify areas that require modifications. - Implement the necessary changes focusing on any API integrations needed. - Deliver a tested version that executes the new functionality as expected. I can have a working version of the core piece ready on a test link within a day. What specific modifications are you looking to prioritize? Toqeer S
$14 USD in 5 days
3.6
3.6

With an extensive background in Full Stack Development plus a focused expertise in Laravel, React.js, Node.js, PHP and many more of the development languages that are particularly relevant for this project, I am confident that I have what it takes to get your custom software modified. Not only that, but I will also ensure that the changes made align perfectly with your unique needs and vision. I understand how software modifications need to be approached with precision and care. My experience in creating highly scalable backend systems and REST API Development will come into play as we navigate through the changes required together. On top of working on numerous web and mobile app solutions, my ability to provide long-term maintenance and optimize performances will guarantee that the changes made remain effective for a substantial period. Moreover, having a keen eye for ensuring functional efficiency, I naturally possess strong Software Testing skills. This has been a key pillar in all my previous projects; hence, it will be integral in assuring the quality of the adjustments made. In simpler terms, by selecting me for this task, you're opting for nothing short of utter professionalism and excellence in custom software modification. So let's discuss the details further - I'm excited to be a part of this project with you.
$20 USD in 7 days
3.9
3.9

As an experienced Robotics and AI Engineer with a deep understanding of software development, my expertise extends beyond the mere creation of robotic systems. I specialize in utilizing and modifying existing custom software to ensure seamless functionality, which makes me the perfect candidate for your project. My experience with Robot Operating System (ROS) and multiple programming languages like Python and C++ will come in handy as we navigate potential modifications to your software. Furthermore, my skills in AI and Machine Learning will be particularly relevant to our task. Combining these with my proficiency in Sensor Fusion, Motion Planning and Control elucidates my ability to create insightful alterations to your custom software using appropriate data insights garnered from intelligent robot technologies. My familiarity with software testing methodologies also ensures thorough evaluation before implementing the final reconfigured version. In conclusion, my track record of building efficient, maintainable, and well-documented codebases coupled with my knack for integrating complex systems like computer vision algorithms and sensor fusion technologies not only make me suitable but also uniquely qualified for this job. Take a proactive step towards efficient change by hiring me today!
$20 USD in 7 days
3.4
3.4

Hi, I can help investigate and modify the existing custom software based on the changes you need. My strongest background is in PHP/Laravel, API development, database systems, debugging and production troubleshooting. I’m comfortable working through unfamiliar/legacy codebases, tracing application flow, identifying the root cause, and making targeted changes without breaking existing functionality. I can first review the current software, understand how the relevant modules work, and then discuss the required changes with you before touching the production version. If the application involves a compiled component or C#/Assembly code, I can assess that part as well and determine the safest approach rather than guessing. I’ll provide clear communication on what I find, what needs changing, and any risks involved. Since the project description intentionally leaves the exact requirements for discussion, send me the software details and the changes you need, and I can give you a realistic estimate before we proceed.
$10 USD in 1 day
2.3
2.3

You mentioned that the detailed requirements will be discussed with the selected freelancer. I have strong experience with software development, debugging, API integration, PHP, C#, and backend systems, and I’m comfortable investigating existing code and identifying the root cause of technical issues. My background includes Python, Node.js, C#, REST APIs, database systems, and production debugging. At Poundit, I worked on backend systems and API integrations where understanding existing code and resolving complex issues was part of the work. I’d be happy to review the technical details, existing code or application, and expected outcome before confirming the best implementation approach. Please share the main issue and what needs to be analyzed.
$10 USD in 2 days
2.3
2.3

**Experienced Developer | High-Quality Work & On-Time Delivery** Please check my last completed work. I always focus on delivering projects **on time with high-quality, reliable results**. I have experience working across multiple domains, including **Healthcare, Gaming, Retail/POS, Government, Transportation, and other business applications**. I also have strong experience in **C#, .NET, API development, debugging, software development, and integration**. I would be happy to discuss your requirements in detail and understand the existing system before starting the work. Please connect with me for further discussion. I’m confident I can provide a reliable and effective solution for your project.
$25 USD in 2 days
2.3
2.3

Hi, I can make the required changes to your custom software while keeping the existing functionality stable. I’ll first review the current code and discuss the exact changes with you, then implement and test them carefully. Please share the software details and let’s discuss the required changes so I can get started.
$20 USD in 5 days
0.0
0.0

I DON'T COMPETE ON PRICE. I COMPETE ON RESULTS. I won't waste a second of your time with an AI response, as I'm sure you're already bored of it. So lets talk with facts, actions and implementation. We help businesses enhance their software solutions to meet evolving needs. I noticed you mentioned discussing the details with the selected freelancer, emphasizing the importance of a clean, professional approach to the required changes. My expertise includes custom software development, ensuring seamless integration and user-friendly interfaces tailored to your specific requirements. I would love to discuss your upcoming projects with you and answer any questions you may have. Kind Regards, Stacey
$10 USD in 14 days
0.0
0.0

Kasur, Pakistan
Member since Jul 4, 2026
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₹750-1250 INR / hour
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