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We are looking for an experienced mobile app developer to complete the final phase of an existing business application developed for our company, GTI (Gabion Technologies India Ltd.). The app is already built and functional. Only a few updates, refinements, and bug fixes are required before deployment. Scope of Work: * Review the existing application and codebase. * Implement a few pending features and UI improvements. * Fix minor bugs and performance issues. * Ensure smooth functionality across the application. * Test the app thoroughly before final delivery. * Prepare the app for production/release if required. Requirements: * Experience in mobile app development (please specify your technology stack). * Ability to understand and work with an existing codebase. * Strong debugging and problem-solving skills. * Good communication and regular progress updates. Please Include in Your Proposal: * Your relevant experience with similar projects. * Examples of apps you have completed or maintained. * Your estimated timeline. * Your fixed-price quotation. * Confirmation that you are comfortable working on an existing codebase. The selected freelancer may also be considered for future enhancements and long-term maintenance of the application.
Project ID: 40552605
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Active 3 days ago
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44 freelancers are bidding on average ₹8,394 INR for this job

Hi, I can help with your "Finalize & Upgrade Business App (GTI)" project. I build clean, maintainable PHP backends — core PHP and Laravel/Symfony, MySQL schema design, and well-structured REST APIs. For work involving php, mobile app development, iphone, android, debugging, xamarin, ios development, react native, flutter, app development, I pay close attention to validation, security, and readable code, delivering in small, testable milestones. I provide clean commits and clear documentation. Can we discuss the specifics before I firm up the timeline? ⭐ 5.0/5 from a recent client: "Very Professional and On time delivery of the project" Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
₹10,000 INR in 3 days
8.0
8.0

As a seasoned mobile app developer with over 11+ years of experience, I am confident that I possess the skills and expertise to flawlessly finalize and upgrade your GTI's business application. I have proficiency in an extensive range of technologies including Flutter & PHP - which I believe will be invaluable for examining and improving your existing codebase. My strong debugging and problem-solving skills will ensure all minor bugs are identified and fixed promptly, guaranteeing that your application runs smoothly with improved functionality. Our fair pricing reflects our commitment to provide the highest quality work possible at a competitive rate. On top of that, we assure you complete transparency and regular progress updates throughout the project. Choosing us for this project will not only give you end-results that exceed expectations but also open doors for potential long-term partnerships. Let’s get started on this project so GTI can fully utilize its upgraded business application! Thank you for considering our proposal!
₹7,000 INR in 5 days
6.9
6.9

With over a decade of experience in mobile app development, I am confident in my ability to complete the final phase of the GTI business app to meet your exact specifications. As a full stack developer, I am skilled not only on the frontend and UI/UX of your application but also on the backend, ensuring that all aspects function seamlessly together. Having worked on numerous similar projects in the past, I am proficient in identifying and fixing bugs as well as implementing pending features effectively. I am very comfortable working with existing codebases, so you can be assured that I'll dive deep into the app's functionality and leave no stone unturned while reviewing and updating it. Testimonial to my skills is the 100+ successful projects that I have already delivered, emphasizing my commitment to timely delivery without compromising on quality. My goal is always to build applications that are not only functional but also scalable and secure for long term use. Considering this, I assure you with Vimal Kumar Prajapat
₹12,500 INR in 7 days
6.4
6.4

Hello, I can help you complete the final phase of your GTI (Gabion Technologies India Ltd.) mobile application, including bug fixes, UI refinements, pending feature implementation, performance improvements, and full pre-deployment testing. I have experience working with existing codebases and can quickly understand your current architecture to ensure smooth and stable enhancements without disrupting existing functionality. I will carefully review the application, resolve issues, optimize performance, and ensure the app is fully stable and production-ready. I can also support final release preparation and future maintenance if required. I am comfortable working with existing projects and can provide regular updates throughout the process. I will share relevant experience, similar projects, timeline, and fixed-price quotation after reviewing the current scope and codebase. Regards, ALOP
₹10,000 INR in 3 days
6.4
6.4

With my strong background in mobile app development complemented by your existing codebase, I am well-equipped to give your GTI app the finish it deserves. Having worked with Flutter, React Native, and Android across my extensive career, I am confident in delivering efficient solutions to ensure smooth functionality, fix bugs and enhance the user interface effectively. My previous positions as Chief Technology Officer and software engineer have given me the opportunity to tackle large-scale projects similar to GTI's. From developing frontend and backend architecture to creating scalable applications and API integrations, all of these skills align perfectly with the scope of work required for your project. Moreover, I understand that clear communication and regular progress updates are vital for a project's success, and I assure you that you will be equipped with detailed updates throughout the process. I am also prepared to offer continued technical assistance beyond this project, thus making me an ideal candidate for not only this but even future enhancements. Let's discuss the project further to outline a timeline and fixed-price quotation that work for both parties. Do let me know if there are any queries or clarifications needed from my side. Thank you for considering my application! Look forward to hearing from you soon.
₹1,500 INR in 7 days
4.4
4.4

Hi, We can help you complete the final phase of your GTI mobile application and get it production-ready without disrupting the existing functionality. Our experience includes working on live production apps where we step into existing codebases, quickly identify architecture patterns, fix bugs, and implement pending features while keeping the app stable across iOS and Android. We are comfortable working with Flutter / React Native / native Android-iOS stacks depending on your current setup. For your scope, we would start with a full code audit, then move into: • Fixing existing bugs and performance issues • Completing pending UI and feature updates • Cross-device testing and stability improvements • Final QA and release preparation for production deployment We also maintain clean documentation during updates so future enhancements remain easy for your internal or external teams. Let’s connect so I can review your current build and share a clear timeline and fixed-cost estimate after checking the codebase.
₹10,000 INR in 7 days
4.6
4.6

Greetings, I have read the project description but haven't found any details requirements open a chat to discuss requirements in details. Regards
₹12,000 INR in 2 days
4.3
4.3

**Quality development, clear communication, and on-time delivery are what I bring to every project. After reviewing your requirements, I'm confident I can complete the final phase of your mobile application by refining the existing codebase, resolving outstanding issues, and preparing it for a smooth production release.** I have experience working with existing mobile applications, implementing new features, fixing bugs, improving UI/UX, and optimizing performance without disrupting the current functionality. I'm comfortable understanding an existing codebase, identifying issues quickly, and delivering clean, maintainable updates. Before final delivery, I'll thoroughly test the application to ensure stability, reliability, and a seamless user experience across all supported devices. Before we proceed, I'd like to clarify a few details: Which technology stack is the app built with (Flutter, React Native, Kotlin, Swift, etc.)? Could you share a list of the remaining features and known bugs? Is the app already connected to the production backend, and do you also need assistance with Play Store/App Store deployment? Regards, Solves Inn
₹3,500 INR in 5 days
4.4
4.4

I'm Abhishek, a dedicated and competent mobile app developer with proficiency in Android, iPhone, PHP, and React Native. Your project aligns perfectly with my skill set and experience. I thrive on enhancing existing codes and ensuring seamless performance. My previous works include successfully maintaining Enterprise-level CRM applications, demonstrating not only my ability to work with existing codebases but my grasp of quality control as well. In addition to being highly detailed-oriented and quality-focused, I have built a reputation for delivering projects within the specified timeframe. Through judicious use of debugging tools and my strength in problem-solving, I'll effectively address all pending issues and refine your GTI business application for you. Regular progress updates are a staple of my workflow so you'll always be informed of my progress. Though your project will end on successful completion, I believe our collaboration shouldn't. As you mentioned a potential need for long-term maintenance and future enhancements, I would be thrilled to remain your trusted technology partner beyond this project. Let's make this happen; choose reliability, choose timeliness, choose effectiveness. Choose me!
₹15,000 INR in 10 days
4.2
4.2

I'll review the existing application and codebase, implement pending features and UI improvements, and fix minor bugs. I'll ensure smooth functionality and test the app thoroughly. Experienced in mobile app development, I'm comfortable working with existing codebases. Ready to start immediately — DM me.
₹12,500 INR in 7 days
4.5
4.5

Hello! I’d be glad to help complete the final phase of your GTI business application by reviewing the existing codebase, implementing the remaining features, refining the UI, fixing bugs, optimizing performance, and thoroughly testing everything before deployment. I’m comfortable working with existing projects and focus on clean, maintainable code while providing regular progress updates throughout the process. I’d be happy to share similar app maintenance and enhancement work, discuss the technology stack, provide a realistic timeline and fixed price after reviewing the project, and support future updates and long term maintenance as your application evolves. This is my initial bid, not my final offer. Best regards, Ammar Ahmed
₹1,500 INR in 1 day
3.7
3.7

Hi, I’ve reviewed your requirements, and I can help you complete the final phase of your GTI mobile application. Since the app is already functional, my focus will be on quickly understanding the existing codebase and delivering clean refinements without disrupting current stability. I have experience working on existing mobile applications where the scope involved bug fixing, UI improvements, performance optimization, and preparing apps for production release. I’m comfortable working with established codebases and ensuring smooth enhancements without introducing regressions. My approach will include: - Detailed review of current architecture and code structure - Implementation of pending features and UI improvements - Fixing bugs and improving performance stability - End-to-end testing across key flows - Final production readiness checks and optimization I ensure clear communication and regular updates throughout the process so progress remains transparent. I can start immediately and would be happy to support not only this final phase but also future maintenance and enhancements if needed. Looking forward to working with you.
₹7,000 INR in 7 days
0.7
0.7

Hi, I'd be happy to help complete the final phase of your GTI mobile application. I have experience working with existing codebases, implementing new features, fixing bugs, improving UI/UX, and preparing business applications for production deployment. I'm comfortable reviewing the current application, understanding the architecture, implementing the remaining enhancements, resolving performance issues, and performing thorough testing to ensure a stable release. I work with Flutter, React Native, Android (Kotlin/Java), and iOS (Swift), depending on your existing technology stack. I'm also available for future enhancements and long-term maintenance. After reviewing the existing codebase and pending task list, I'll provide an accurate timeline and fixed-price quotation. Best Regards, Shailender
₹12,000 INR in 10 days
0.9
0.9

Hi, Thanks for sharing your project. It aligns well with solutions our team at Royal IT Service has successfully delivered for clients across various industries, and we're confident we can provide a high-quality solution tailored to your requirements. Before providing an accurate timeline, scope, and budget, we'd like to clarify a few key details to ensure we're aligned from the start. Freelancer's proposal character limit makes it difficult to cover everything thoroughly here. If you're available, let's connect via chat. We can discuss similar projects we've worked on, recommend the best approach for your specific requirements, and answer any questions you may have. Once we understand your expectations, we'll provide a clear execution plan with realistic timelines and pricing. We're ready to get started as soon as we finalize the details and look forward to working with you. Best regards, Royal IT Service
₹6,000 INR in 10 days
2.6
2.6

I can build and upgrade your business app (GTI) with a focus on performance, scalability, and user experience. My expertise includes Android & iOS development, backend architecture, and seamless API integrations. I’ve delivered numerous cross-platform apps that meet business automation and growth needs efficiently.
₹1,700 INR in 2 days
0.0
0.0

Hi, I can help you complete the final phase of your GTI (Gabion Technologies India Ltd.) mobile application by stabilizing the existing build and preparing it for smooth production release. What I will do: * Review the existing codebase thoroughly (structure + logic + dependencies) * Implement pending features and UI refinements * Fix bugs and performance issues across screens * Improve overall app stability and responsiveness * Test end-to-end flows to ensure production readiness * Prepare final build for Play Store / App Store deployment if required Working approach: I will first analyze the current architecture so I can safely extend functionality without breaking existing modules. All fixes will be done in a controlled way with proper testing after each change. Recommendation: Since this is an existing application, I will also check: * Hidden UI/state bugs * API mismatch issues * Memory/performance bottlenecks I am comfortable working on existing codebases and can start immediately. Best regards, Prachi
₹7,000 INR in 7 days
0.0
0.0

Hi, I have experience working with existing mobile applications, including reviewing codebases, fixing bugs, improving UI, optimizing performance, and preparing apps for production release. I am comfortable taking over an existing project and working with technologies like Flutter, React Native, Android, or iOS depending on your current app stack. I will first review the code, identify pending issues, implement required updates, test the complete application, and ensure it is stable before deployment. I can provide regular progress updates and deliver clean, maintainable fixes. I’m also available for future enhancements and long-term maintenance if required. Please share the app details and current codebase so I can review the scope and provide a more accurate timeline and quotation. Best regards, Shehram Riaz
₹7,000 INR in 7 days
0.0
0.0

Gsinfotechh OPC Private Limited Your Trusted Tech Partner in New Delhi We are a dynamic software development company with 10+ years of excellence, specializing in secure, scalable, and high-performance digital solutions. We turn innovative ideas into powerful, market-ready products. ? Our Expertise AI Video Generation & Talking Characters – Experts in stunning AI videos, lifelike animated explainers, and engaging talking character content Mobile App Development (Android & iOS) Desktop Software (C#, Java, .NET) Custom Web & Software Development Website Design (WordPress, Joomla, Drupal) Laravel, React JS, Node JS Game Development Blockchain Solutions AI Automation & Tools Meta Trading Tools, Bots & Web Scraping SEO, Digital Marketing & Video Editing ⚙️ Technologies React JS, Node JS, MongoDB • Python (Django) • Flutter & React Native • Android (Kotlin/Java), iOS (Swift) • AI/ML for Video & Animation ✨ Why Choose Us? ✔ 10+ years proven expertise ✔ Specialists in AI Video & Talking Character Animation ✔ Modern, scalable & cost-effective solutions ✔ Transparent communication & on-time delivery ✔ Secure, future-ready technology ✔ Flexible pricing & dedicated support ? Let’s Build Together Looking for a reliable partner to bring your ideas to life with cutting-edge AI videos or robust applications? Gsinfotechh delivers excellence. Contact us today and create something amazing! ?
₹1,500 INR in 7 days
0.0
0.0

Hello, As an experienced mobile app developer, I have the necessary skills and expertise to bring your business application, GTI, to its final stages. My proficiency extends to Android, Flutter, iOS Development, React Native and more; making me exceptionally capable of understanding and working with your existing codebase. In addition to my technical acumen, I have a keen eye for detail and strong debugging skills that will prove instrumental in implementing the pending features, refining UI, fixing bugs and ensuring peak performance across the app. Furthermore, my focus on operational transformation aligns perfectly with your project - eliminating manual processes and replacing them with AI-driven systems that boost efficiency over time. I’ll provide regular progress updates to keep you in the loop about every aspect of our work together. Based on your project requirements and my estimated timeline, my fixed-price quotation encompasses all necessary aspects down to preparing the app for production/release if required. My commitment goes beyond just completing this project; a successful collaboration could pave way for continued enhancements and long-term maintenance of the application with me as your trusted partner behind the scenes. Let's make GTI shine! Best Regards, Habib Ulalh.
₹7,000 INR in 7 days
0.0
0.0

I can help finalize and upgrade your GTI business application by improving its functionality, performance, and overall user experience. My approach begins with reviewing the existing application to identify incomplete features, bugs, and opportunities for enhancement. I will optimize the codebase, refine the user interface, improve responsiveness, and ensure smooth performance across supported devices. Any required integrations, security improvements, and feature enhancements will be implemented following best development practices. Thorough testing will be conducted to eliminate issues and ensure stability before deployment. Throughout the project, I will provide regular progress updates, maintain clear communication, and incorporate your feedback promptly. My goal is to deliver a polished, reliable, and scalable business application that is ready for production and future growth.
₹4,500 INR in 8 days
0.1
0.1

Delhi, India
Member since May 28, 2026
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