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The portfolio above shows sixteen in-house and client-facing applications that have grown over the years. It is time for a coordinated upgrade, starting with two priority platforms and then moving through the rest of the list. Phase 1 – LG Redemption System (LG Electronic Indonesia, 2021) The new release must let customers create accounts, sign in securely, track every product redemption they submit, and receive timely notifications whenever a promotion goes live or their claim status changes. The current code base exists, yet the UX is dated and the tracking logic is fragmented across several tables; a clean module rewrite is preferred to quick patches. Phase 1 – Sistem Approval Documentation – DPR RI (2023) This web app will handle sensitive government documentation, so a robust approval workflow is critical. Core features required are: • Document submission with metadata capture and quick search • Multi-level approval routing that reflects real-world sign-off hierarchies • Version control with full history, diff view, and rollback Security, role management, and audit trails are expected across both systems. Next Phases After these two are stable in production, attention will shift to the remaining applications on the list—ranging from an ERP (2025) to legacy SMS-gateway solutions (2014). The long-term goal is to bring the entire suite onto a modern, loosely-coupled architecture so future upgrades can happen module by module instead of as large redeployments. Deliverables 1. Source code, documented and version-controlled 2. Deployment scripts or Docker images ready for staging and production 3. User and admin manuals in English 4. A short hand-over workshop (remote is fine) to walk through architecture, build process, and troubleshooting basics Acceptance Criteria • All listed Phase 1 features work end-to-end without critical bugs • OWASP Top-10 scan returns no high-severity issues • Page load times below 2 s on a 4 Mbps connection • Automated tests cover at least 70 % of business logic Feel free to suggest the best tech stack—Laravel, Spring Boot, Node.js, React, Angular, or another framework—so long as it meets the security and performance targets and can be maintained by an internal team later on.
Mã dự án: 39900517
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70 freelancer chào giá trung bình $3.818 USD cho công việc này

Dear Client, I am excited about the opportunity to enhance and develop your multi-system platform. With over 10 years of experience in web development and a proven track record of successfully upgrading and modernizing applications, I am confident in my ability to deliver exceptional results for your project. I have reviewed your project description and the outlined phases for the LG Redemption System and Sistem Approval Documentation – DPR RI. My expertise in UX design, clean code development, and robust approval workflows align perfectly with your requirements. I am committed to delivering high-quality, secure, and efficient solutions that meet your business goals. I am well-versed in a variety of tech stacks, including Laravel, Spring Boot, Node.js, React, and Angular. I am ready to collaborate with you to determine the best fit for your project and ensure seamless integration with your existing systems. I am excited to discuss your project further and provide you with a customized approach to achieving your goals. Please review my portfolio for examples of my past work and let's schedule a chat to explore how we can work together to bring your vision to life. Looking forward to the opportunity to collaborate with you. Sincerely,
$4.000 USD trong 90 ngày
9,5
9,5

With over a decade of experience in the industry and a notable expertise in developing and maintaining complex multi-system platforms, I am confident my skill set aligns perfectly with your project requirements. I offer an all-rounded approach to software development combining an inherent love for coding, a solution-oriented mindset and a strong ability to integrate various technologies seamlessly. Having successfully delivered similar projects in the past, I am well-positioned to phase out the required upgrades on both LG Redemption System and Sistem Approval Documentation. On top of being familiar with Laravel, Spring Boot and Node.js - languages that give you high-performance backend architecture, I have extensive experience architecting scalable systems with strict security controls, robust approval workflows as well as version control systems. The skills I bring to the table go beyond mere development; I am also adept at documenting and version-controlling work and believe in empowering end-users to troubleshoot effectively. To this end, I will provide comprehensive user-admin manuals as well as conduct an efficient handover workshop so that your internal team feels fully confident in maintaining the system once deployed. Let's create a modern high-performing suite that adapts easily to future changes - choose me!
$5.000 USD trong 70 ngày
9,7
9,7

With over a decade of experience in web and mobile development, I understand the importance of upgrading and enhancing your multi-system portfolio. The challenges you're facing with the LG Redemption System and Sistem Approval Documentation are clear, and I am ready to tackle them head-on. My expertise in fintech and blockchain aligns perfectly with the secure account creation, tracking, and notification requirements of the LG system. Additionally, my experience in handling sensitive data in government projects ensures that the approval workflow for the DPR RI system will be robust and efficient. I have successfully delivered similar projects in the past, exceeding expectations and driving results for my clients. I am confident that I can bring the same level of expertise to your project and help you achieve your goals. I am eager to discuss your project further and share how I can add value to your team. Please feel free to reach out to me at your convenience to schedule a call or message. Let's work together to bring your vision to life.
$4.000 USD trong 45 ngày
8,9
8,9

With my expertise in PHP, Website Design, Software Architecture, MySQL, and Node.js, I am well-equipped to enhance and develop your multi-system project. I am confident in meeting the security and performance targets while ensuring maintainability for your internal team. Budget flexibility is possible once we discuss the full scope. I am eager to start and showcase my commitment to your project. Please review my 15 years of experience in my profile. Let's discuss the details and get started on this exciting opportunity.
$3.500 USD trong 21 ngày
8,8
8,8

Hello, I will enhance your multi-system platform by improving functionality, performance, and integration between modules. I’ll review the existing architecture, optimize APIs, and implement new features while maintaining clean, secure, and scalable code throughout. I’ve worked on similar multi-system projects involving complex backends, API coordination, and feature upgrades, so I will ensure your platform operates smoothly and efficiently across all components. Questions: – Do you have a list of specific enhancements or should I review the system and propose improvements? – Would you like me to focus on backend logic, frontend updates, or both? Let’s chat, I’m ready to start right away and will deliver robust system enhancements that improve performance and reliability. Looking forward to your message in chat. Best regards, Kamran
$3.000 USD trong 15 ngày
8,3
8,3

With over a decade of experience in web development and expertise in Node.js, React, PHP, and Excel automation, our team is well-equipped to revamp your platforms. Our track record includes successful projects like the LG Redemption System and Sistem Approval Documentation. We are confident in delivering clean module rewrites for an improved user experience and streamlined tracking logic. Our commitment to security, role management, and audit trails ensures compliance with government standards. Trust us to bring your entire suite onto a modern architecture for seamless upgrades. Let's elevate your systems together.
$3.223 USD trong 7 ngày
7,5
7,5

Hello Dika J., We would like to grab this opportunity and will work till you get 100% satisfied with our work. We are an expert team which have many years of experience on PHP, Website Design, Software Architecture, MySQL, Node.js, Web Development, Security, Database Management, Angular, API Development Please come over chat and discuss your requirement in a detailed way. Thank You
$4.000 USD trong 7 ngày
7,1
7,1

Hello Dika, I have thoroughly reviewed your project titled 'Multi-System Enhancement & Development' and I am excited about the opportunity to work on it. The coordinated upgrade plan for sixteen applications with a focus on LG Redemption System and Sistem Approval Documentation is ambitious and crucial for enhancing user experience and functionality. I propose a detailed approach to redesigning the UX, streamlining the tracking logic, and implementing robust approval workflows for the two priority platforms. After successful implementation, we will seamlessly transition to upgrading the remaining applications, ensuring a modern architecture with enhanced security, role management, and audit trails. For the deliverables, I guarantee providing well-documented source code, deployment scripts, user and admin manuals, and a comprehensive hand-over workshop to equip your team. The acceptance criteria align with industry standards, aiming for flawless functionality, security compliance, efficient page load times, and thorough test coverage. I recommend leveraging a tech stack comprising Laravel for robust backend development, React for dynamic frontend interfaces, and Node.js for scalable API development, ensuring optimal performance and ease of maintenance. My expertise in Web Development, Software Architecture, MySQL, PHP, Node.js, Angular, and Security enables me to deliver high-quality solutions tailored to your needs. I am confident that my skills and experience align well
$4.530 USD trong 3 ngày
7,1
7,1

Hello Dika, Your initiative to upgrade and enhance these critical systems is commendable, and I am well-prepared to assist you in achieving the robust and modern architecture you envision. Focusing on a clean module rewrite for the LG Redemption System and implementing a secure, workflow-optimized Sistem Approval Documentation is crucial. With my expertise in PHP, MySQL, Node.js, and Angular, I can ensure these systems are both efficient and secure while maintaining the flexibility for future modular upgrades. Thanks, Teo
$3.000 USD trong 30 ngày
6,4
6,4

Hello, I’ve carefully reviewed your project and know exactly how to deliver results that are strategic, efficient, and tailored to your goals with no wasted time or guesswork, just real, measurable value. With several years of hands-on experience in PHP, Website Design, Software Architecture, MySQL, Node.js, Web Development, Security, Database Management, Angular, API Development, I bring not just expertise but a track record of delivering results that help clients move forward with confidence. My Portfolio: https://www.freelancer.ca/u/DGM999 If you’re looking for reliable, quality-driven support, I’m just a message away. Let’s make it happen. Best Regards, Sadat Saeed
$3.000 USD trong 7 ngày
6,2
6,2

Hey, i will start by rewriting the lg redemption system using node.js for the backend and react for the frontend, creating secure account management, real-time notifications, and a clear redemption tracking module that consolidates fragmented tables into a single source of truth. for the sistem approval documentation, i will use spring boot with a relational database to handle document submission, multi-level approval workflows, version control with diff view, and rollback, while ensuring role-based access, audit trails, and encryption at rest and in transit. both systems will include jwt authentication, input validation, and automated tests covering at least 70 percent of business logic. docker images and deployment scripts will allow staging and production rollout, and a short hand-over workshop plus detailed documentation will guide your internal team through architecture, maintenance, and troubleshooting. Let's have a detailed discussion, as it will help me give you a complete plan, including a timeline and estimated budget. I will share my portfolio in chat I look forward to hear from you. thanks Regards, Mughira
$4.000 USD trong 7 ngày
5,6
5,6

Hello, I understand that enhancing your diverse application suite is crucial, especially focusing on the LG Redemption System and the Sistem Approval Documentation initially. With the LG system, maintaining robust user engagement through account management, redemption tracking, and proactive notifications can significantly enhance user satisfaction and retention. For the DPR RI's documentation system, a solid approval workflow and document management are vital to ensure operational integrity and compliance. Having implemented similar solutions, I propose a complete rewrite of the UX for the LG System to streamline the tracking logic and improve user interaction. For the Approval Documentation web app, I recommend employing a secure multi-tier architecture to accommodate sensitive data management with thorough audit trails and role-based access. I have recently completed a complex SaaS platform upgrade for a French client, which involved modernizing the codebase and ensuring high security, receiving top feedback for my strategic approach and execution. I'd be delighted to further discuss your suite's transformation and create a detailed roadmap. Can you share more about the internal team's tech preference for long-term maintenance? Thanks, Samir
$5.000 USD trong 6 ngày
5,7
5,7

Hi there, Good evening I am Talha. I have read you project details i saw you need help with Web Development, Angular, API Development, Software Architecture, PHP, Node.js, Security, Database Management, Website Design and MySQL I am excited to submit my proposal for your project, which focuses on a comprehensive project plan. To begin, we will thoroughly understand your project's objectives and requirements, ensuring alignment on scope and goals. We will provide a clear and realistic project timeline with manageable milestones to ensure timely completion Please note that the initial bid is an estimate, and the final quote will be provided after a thorough discussion of the project requirements or upon reviewing any detailed documentation you can share. Could you please share any available detailed documentation? I'm also open to further discussions to explore specific aspects of the project. Thanks Regards. Talha Ramzan
$4.440 USD trong 1 ngày
5,5
5,5

As an accomplished Software Engineer with extensive experience in designing, developing, and maintaining a multitude of enterprise-grade systems, I am confident that I can provide exceptional value to your multi-system enhancement project. My expertise in API Development, Node.js, and MySQL aligns perfectly with your needs for phase one of this undertaking. I have consistently demonstrated the ability to create efficient and secure solutions while ensuring a seamless user experience. Beyond the immediate needs for the LG Redemption System and the Sistem Approval Documentation, my long record of success in delivering high-performing software will prove invaluable as we scale this project through to completion. From legacy systems to modern architectures, like yours, I've helped businesses future-proof their tech stacks and drive significant improvements in overall efficiency. Moreover, my passion for leveraging technology and delivering top-notch solutions aligns with your objective of having systems that are secure, robust, and easily maintainable. I am excited about the prospect of working on such a challenging and impactful project and would be delighted to lead you into this transformative process with my skills. Let's create a state-of-the-art system together!
$5.000 USD trong 45 ngày
5,3
5,3

Hello, As an experienced full-stack developer with over a decade devoted to creating robust web applications, I am confident that I possess the skills and expertise required to bring your enhancement project to life. With a strong focus on React development and exceptional UI design skills, I can deliver not just efficient and scalable software solutions but also visually appealing user experiences. Throughout my career, I have successfully managed multiple complex projects from their inception to the final deployment stages, much like what your portfolio upgrade demands. My leadership qualities combined with my attention to detail will not only ensure that each phase of your project is developed to its highest potential but that it's done so in a manner that aligns with your vision and security requirements. Furthermore, as someone who takes personal pride in their work, I am passionately dedicated to delivering results that exceed expectations. I guarantee adherence to your performance benchmarks and can furnish you with a well-documented codebase complete with deployment scripts or Docker images, comprehensive user/admin manuals, as well as hands-on workshops for a fluid transition. Trust me to help you modernize your suite of applications without disruption, taking each module one step at a time to optimize efficiency and minimize downtime. Let's start this journey together! Thanks!
$3.000 USD trong 30 ngày
4,9
4,9

Hello there, I will help upgrade your in-house and client-facing applications, starting with the LG Redemption System and the Sistem Approval Documentation web app. I have experience rewriting legacy modules, designing secure approval workflows, and consolidating fragmented logic into maintainable, high-performance systems. My previous projects included account management, real-time notifications, role-based access control, and versioned document handling with audit trails. For Phase 1, I suggest a clean module rewrite using Laravel for backend services with React for responsive, fast front-end interfaces. Dockerized deployments can ensure staging and production parity, and automated tests will cover core business logic. Documentation, manuals, and a remote hand-over workshop will also be delivered. Security will follow OWASP Top-10 guidelines, and page load optimization will be prioritized to meet your performance targets. To ensure we design the workflow correctly, could you clarify whether the LG Redemption System needs real-time tracking updates pushed to users or periodic polling is sufficient for notifications? Best regards, Aliza K.
$3.500 USD trong 42 ngày
5,1
5,1

Hi, I am ready to work on your multi-system enhancement development project. I will focus on improving and expanding the functionality across your specified systems, ensuring they work together seamlessly while maintaining stability and performance. What is the primary objective you want to achieve with these enhancements across your systems? You can go through my portfolio and check my past work I have done: https://www.freelancer.com/u/techsty2014 Best Regards, Faizan
$3.200 USD trong 19 ngày
5,5
5,5

Hello Dika, With 25 years of IT experience, ranked 2 in the UK, clear delivery is my mantra! I'm excited about the opportunity to enhance and develop your multi-system platform, starting with the LG Redemption System and the DPR RI Document Approval System. For the LG Redemption System, I propose a comprehensive UX overhaul along with a solid module rewrite to ensure clean tracking logic and seamless user experiences. Regarding the DPR RI system, I can implement a robust, multi-level approval workflow to safeguard sensitive documentation, while ensuring that all security measures and audit trails are adhered to. Given the long-term goals for a modern, loosely-coupled architecture, I would recommend using a tech stack that balances security and performance, such as Laravel for the backend and Angular for the frontend, ensuring that your internal team can manage it effectively later. What specific security measures do you envision for both systems to ensure compliance with your internal policies? Thanks, ALESSIO
$3.500 USD trong 10 ngày
4,6
4,6

Hello Dika, I am Vishal Maharaj, with 20 years of experience in PHP, Software Architecture, MySQL, Web Development, API Development, Angular, and Node.js. I have carefully reviewed your project requirements for enhancing and developing multiple systems. For the LG Redemption System and Sistem Approval Documentation, I propose a comprehensive approach including a clean module rewrite for improved UX and a robust approval workflow with version control. Security, role management, and audit trails will be prioritized. Upon completion of Phase 1, the focus will shift to upgrading the remaining applications onto a modern architecture. I will ensure timely delivery of source code, deployment scripts, manuals, and a hand-over workshop. Please initiate a chat to discuss this project further. Cheers, Vishal Maharaj
$5.000 USD trong 30 ngày
5,6
5,6

Nice to talk you dikajsm, After reading in detail the requirements of your project and concluding that they match my areas of knowledge and skills, I would like to introduce myself. My name is Anthony Muñoz and I am the lead engineer for DS Pro IT agency. I have worked for over 10 years in Backend and software development and have successfully done multiple jobs. It will be a pleasure to work together to make your project a reality. Please feel free to contact me. I´m looking forward to working with you. I really appreciate your time and remain attentive to any request or question. Greetings
$7.478 USD trong 7 ngày
5,4
5,4

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