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We are looking for a reliable and experienced Java developer to help improve and complete an existing desktop application for a self-service retail checkout kiosk. The current version (MVP) is already built, but requires further development, refinements, and additional features to make it production-ready. The role involves working with an existing codebase, improving stability, and implementing new functionality based on provided designs and requirements. One key feature will include adding an interface to manage user accounts within the system. You will collaborate closely with the client for testing and feedback throughout the process. This is a fast-paced project with a strict timeline, so full-time availability and the ability to deliver quickly are essential. Strong problem-solving skills, attention to detail, and clear communication are highly valued.
ID Projek: 40255630
65 cadangan
Projek jarak jauh
Aktif 2 hari yang lalu
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Ianya percuma untuk mendaftar dan membida pekerjaan
65 pekerja bebas membida secara purata $471 USD untuk pekerjaan ini

Hello, I’m Jaffer, a senior Java developer. I specialize in delivering clean, maintainable code and solutions that solve real business problems. I have strong experience working across the full development lifecycle, including: Java, JavaFx I’ve worked on projects involving windows desktop, C#, C++. I focus on writing high-quality code, following best practices, and delivering projects on time. What you can expect from me: Clear and honest communication Clean, scalable, and well-documented code Strong problem-solving skills Long-term support and maintenance if needed I’d love to learn more about your project and discuss how I can help you achieve your goals. Let’s connect and build something great together. Best regards, Jaffer Full Stack Developer
$500 USD dalam 7 hari
5.9
5.9

Hi There: Hope this note finds you in great spirits. Please note the below details: Summary: Technical Architect with 08 years of experience in product development in JAVA, Hibernate, JPA, Spring, Java FX, SQL, performance tuning and web application security with a knack for troubleshooting. SKILLS: Java 1.7, 1.8: Hibernate JPA | Spring Boot, Spring cloud Jboss JBPM, JBoss Drools Quartz scheduler | Oracle |PostgreSQL | Java performance analysis Oracle WebLogic | Apache Tomcat Apache Solr | Elastic stack Apache ActiveMQ | AWS Lambd | Eclipse, IntelliJ |Stanford CoreNLP Architecture: Microservices | Monolithic We charge @US$22/hr. We will start the work within 1-2 days after the award of the project. Look forward to hearing from you!! Thanks, Raman
$500 USD dalam 7 hari
6.0
6.0

I have 21 years of experince, Principal Software Engineer at Microsoft, I have extensive experince with JAVA Swing and Java FX, with detail api structuring and database design. I can built the desktop application as per your requirement.
$500 USD dalam 7 hari
5.6
5.6

I can help with this, I will work on your retail checkout kiosk app in JavaFX, improving stability, refining the existing MVP, and building the user account management interface along with the remaining features needed for production. For kiosk reliability, I will add a local transaction queue that persists incomplete sales to disk. If the app crashes or loses network mid-checkout, pending transactions recover automatically on restart, critical for unattended retail hardware where data loss means lost revenue. Questions: 1) Is the MVP using a local database (SQLite, H2) or connecting to a remote server for transaction storage? 2) Are the designs for the account management screens ready, or do you need UI proposals as well? Ready to start whenever you are. Kamran
$250 USD dalam 10 hari
5.9
5.9

Hello, HAVE HANDS-ON EXPERIENCE WITH SUCH PROJECT With 15+ years of proven experience in Java desktop applications and retail/POS systems, I clearly understand your requirement to refine and stabilize an existing self-service checkout kiosk application, enhancing performance, usability, and production readiness with scalable and secure architecture. -->> Codebase review, refactoring & stability improvements -->> User account management interface with secure role handling -->> Feature enhancements based on provided designs -->> Performance optimization & edge-case handling for kiosk environments -->> Structured testing support & production-ready packaging I follow clean architecture principles (layered structure, SOLID practices), strong validation logic, secure data handling, and an agile workflow with rapid iteration and continuous client feedback. I would begin with a full technical audit of the MVP, define priority improvements, then implement enhancements in structured milestones with regular testing cycles. in chat as I have a few questions regarding the current tech stack (JavaFX/Swing), database integration, and hardware dependencies (barcode scanner, payment terminal) to align timelines accurately. Ready to deliver a stable, production-ready kiosk solution within your strict timeframe. Thanks & regards Julian
$500 USD dalam 7 hari
5.1
5.1

Hi, With my extensive 15+ years of experience, I have cultivated an in-depth understanding of Java and its various applications. In particular, my expertise lies in solving complex problems, designing high-performing systems, and delivering feature-rich products. My previous work with renowned companies including Avaya and Pramati makes me confident in approaching not only the development aspects but also tackling intricate issues related to system stability. It's worth highlighting my proficiency in working with existing codebases and refining them to align with performance benchmarks. Given that your project involves improving the scalability and adding new features to an MVP, this skill will prove invaluable. I appreciate the challenge of working within strict timelines while maintaining high-quality code and I am confident in my ability to balance speed and accuracy to meet your requirements. Effective communication is also something I genuinely value; it allows me to understand the client's needs effectively and enables me to keep you updated on the progress made. My portfolio (referenced above) acts as validation for my wide-ranging skills that would elevate your self-service retail checkout kiosk project to its production-ready state. Consider giving me the opportunity to lend my expertise
$500 USD dalam 7 hari
5.3
5.3

⭐⭐⭐⭐⭐ Thank you for sharing the project details. CnELIndia, led by Raman Ladhani, brings extensive expertise in Java and Windows desktop development, ensuring rapid understanding and enhancement of your existing MVP. We propose a structured approach: first, conducting a thorough codebase review to identify stability issues and improvement areas; second, implementing requested features, including the user account management interface, following your design specifications; third, iterative testing with your team for continuous feedback and refinement. Our dedicated Java developers, experienced in JavaFX desktop applications, will ensure timely delivery while maintaining high quality, clear communication, and problem-solving agility to meet your strict timeline and production-ready goals efficiently.
$500 USD dalam 7 hari
4.5
4.5

✅Hi, Client. I am a senior Java developer✅ I have successfully completed several projects similar like yours. I am interested in your project. I would like to work for you in the long term. Please send a message to discuss this project. I look forward to hearing from you. My main goal is to gain my client's satisfaction by completing a job with 100% accuracy I am a senior Java developer with over 10 years of rich experience in C#/C/C++/QT/Java/Python/Reverse Programming, API integration/Database management. So, I can complete it within your timeline. Best regards! From Hien ...
$500 USD dalam 7 hari
4.2
4.2

Could you share the existing codebase for the desktop application? Understanding the current setup will help me gauge the improvements needed. I have 5+ years of experience in Java development, working on various applications, including kiosk solutions. I can enhance stability and implement the user account management feature efficiently. My strong problem-solving skills and attention to detail ensure high-quality results within tight deadlines. I’m available full-time and can collaborate closely for testing and feedback throughout the process to meet your timeline. Let me know if you’d like to discuss further.
$500 USD dalam 7 hari
3.6
3.6

As a highly-versed Java developer with over 7 years of experience, I have the solid foundation required to make your self-service retail checkout kiosk project a resounding success. My previous projects have focused on using AI for automation, an area which overlaps neatly with your goal of improving and refining your existing desktop application. I can see how the seamless integration of intelligent automation into a robust architecture aligns well with what you aim to achieve. Drawing from my experience developing backend systems, APIs, and services, I can enhance the stability and add key functionalities to your existing codebase efficiently and within your strict timeline. I have always emphasized clean system design - fault tolerance, retries, and structured error handling – attributes that are essential in your fast-paced project. Finally, clear communication is something I hold at utmost importance. It will ensure we collaborate effectively with the client – from the understanding of provided designs and requirements to testing and feedback throughout the entire process. Partnering with me means gaining an astute professional who will put his attention to detail and penchant for problem-solving towards making your retail kiosk not just production-ready but scalable, reliable solution as well.
$500 USD dalam 7 hari
3.8
3.8

Hi, saw your Java desktop app project. My team and I have solid experience with JavaFX and desktop apps, including kiosk systems. We can jump into your existing code, add features like user account management, and get it stable for production. We'll keep you updated regularly and work quickly. Let's chat to discuss a plan, timeline, and budget. I can share examples of our work. Best, Mughira
$500 USD dalam 7 hari
3.6
3.6

Hi, I’m very interested in helping you refine and complete your self-service retail checkout kiosk application. I have strong experience working with existing Java desktop codebases (Swing/JavaFX), stabilizing MVP applications, and turning them into production-ready systems. I’m comfortable improving performance, fixing architectural gaps, and adding new features without breaking existing flows. Here’s how I can support: ✔ Review and refactor the current codebase for stability and maintainability ✔ Implement the user account management interface with proper validation and access control ✔ Improve error handling and edge-case coverage ✔ Optimize UI responsiveness and workflow reliability ✔ Collaborate closely during testing cycles and respond quickly to feedback I understand kiosk systems require reliability, clarity, and smooth UX since they run in real customer-facing environments. I work fast, communicate clearly, and can commit full-time to meet strict timelines. I’m ready to start immediately and help move your MVP to a stable production release. Best regards, Abhay Kumar
$500 USD dalam 7 hari
3.7
3.7

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
$250 USD dalam 5 hari
3.7
3.7

With nearly a decade of experience in software development, Java remains at the core of my skill set. I understand the ins and outs of the language, from working with existing codebases to improving functionality and stability. My background spans small projects to enterprise-level solutions, which has honed my ability to navigate fast-paced environments and deliver within strict timelines. While my experience extends across multiple frameworks and tools, Java is where I feel most at home. I understand the demands this particular project entails — amplifying an already-built application with new features and refining it for production-readiness. Having undertaken similar tasks in the past allows me to hit the ground running without any prolonged onboarding period. Crucially, I value clear communication and client involvement during every step of the process. To deliver a successful project, I emphasize understanding your unique needs and translating them into robust Java code. My proven track record includes working closely with clients like you for testing and feedback, ensuring the end product aligns perfectly with your vision. Let's team up to power your self-service retail checkout kiosk into its peak potential!
$500 USD dalam 7 hari
2.7
2.7

Hi, I’ve worked extensively with Java desktop applications and have experience taking MVPs to full production-ready versions. I can dive into your existing kiosk codebase, enhance stability, implement new features like the user account management interface, and ensure everything aligns with your designs. I’m comfortable working closely with clients for testing and feedback and can commit full-time to meet your tight timeline while delivering high-quality results. Looking forward for your positive response in the chatbox. Best Regards, Arbaz T
$600 USD dalam 7 hari
4.4
4.4

Hello I have thoroughly reviewed your project description and am confident in my ability to assist you in completing it successfully. I believe it would be highly beneficial to delve deeper into the specifics of the job to determine the most effective way forward. I am open to scheduling an interview at your convenience, and I genuinely appreciate the chance to collaborate with you on this project. Your response is eagerly anticipated, and I'm excited about the prospect of working together. Thank you for considering my proposal. Looking forward to your prompt reply! Best regards Rekha!!!
$500 USD dalam 7 hari
2.5
2.5

Hello, I specialize in Java desktop application development and built and customized large scale retail kiosk and point of sale systems from MVP to production ready products. The main challenge here is stabilizing the existing codebase while adding new features without breaking what already works. I am certified in Java Swing and JavaFX development and I will solve this by first doing a proper code audit of your current MVP then building on top of it in small testable releases so you can give feedback at every step. Few things I wanted to check with you, what Java UI framework is the current MVP built on Swing or JavaFX? For the user account management are there different permission levels like admin cashier and store manager? Also is the kiosk running on any specific hardware or standard Windows machines? This will help me give you an accurate timeline with clear milestones. Best regards, Dev S.
$1,000 USD dalam 14 hari
2.3
2.3

Hello, I would like to grab this opportunity and will work till you get 100% satisfied with my work. I'm a 10+ years of experienced full stack AI developer on Java, Windows Desktop, JavaFX, Desktop Application Lets connect in chat so that We discuss further. Regards
$600 USD dalam 7 hari
0.0
0.0

I can enhance and complete your Java desktop application for the self-service kiosk, improving stability, adding new features—including the user account management interface—and refining the MVP into a production-ready system. I offer full-time focus, fast delivery, and close collaboration for testing and feedback throughout. Best Regards, Muhammad
$250 USD dalam 1 hari
0.0
0.0

Hello, I’ve read your description and I’m confident I can take your JavaFX self-service kiosk MVP to production. I specialize in Java desktop apps and have practical backend experience with REST APIs, service layers, database design, refactoring and performance tuning , all useful when stabilizing complex codebases and adding secure account management. I’ll start by reviewing the existing codebase, hardening exception handling, improving concurrency and UI responsiveness, and implementing the user-account interface to your designs. I work full-time on fast-paced deadlines and collaborate closely for iterative testing and feedback. I can begin immediately and provide regular builds and fixes. Can you share the repo access and current sprint priorities so I can estimate which account-management flows must be implemented first? Sincerely, Cindy Viorina
$250 USD dalam 9 hari
0.0
0.0

malang, Indonesia
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Ahli sejak Nov 9, 2023
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