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I’m looking to turn my rupture-disc sizing spreadsheet into a secure, responsive web application. The site will sit behind a straightforward username/password gate; once signed in, users should be able to enter process parameters, hit “Calculate,” and instantly receive accurate sizing data. Those results must be downloadable as both polished PDFs and clean Excel workbooks. Security matters almost as much as accuracy. I run regular security audits, so the code needs to be structured for easy penetration testing, and every login or calculation must be written to an activity log I can review or export later. Think clear separation of concerns, meaningful commit history, and no hard-coded secrets. Specific deliverables • Full-stack application with basic credential login • Validated input form, high-precision calculation engine, and instant PDF / XLSX export • Activity-logging layer capturing user, timestamp, and input set for each run • Admin endpoint or simple UI to pull logs for audit purposes • Deployment guide (Docker, Heroku, or similar) plus thoroughly commented source in Git Acceptance criteria Results must replicate my reference outputs within ±0.1 %, exports must follow the layout I provide, and the audit log must prove every calculation can be traced back to a unique user action. If you’re comfortable translating engineering formulas into clean, test-covered code, and you can demo a working prototype on your own host before hand-off, let’s get started. You can take reference of similar site from: [login to view URL]
N° de projet : 40221947
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55 freelances proposent en moyenne ₹62 735 INR pour ce travail

Hello I’ve reviewed your Rupture Disc Calculator Web Build project and understand you need a responsive web tool where users can enter parameters (material, pressure, temperature, dimensions, etc.) and get accurate rupture disc sizing and related results based on engineering formulas. We can build a clean, fast, and mobile-friendly web application with a user input form, backend calculation logic (in PHP, Node, or Python), and clear result output that updates dynamically. We’ll ensure edge validation, error handling, and professional formatting so the calculator feels reliable and easy to use. The final deliverable will be easy to host and simple to update with new formulas or constants in the future. Best regards, Ambient Infotech
₹29 000 INR en 9 jours
7,8
7,8

Hello, I have 5+ years of experience in PHP, Laravel, and full-stack web development, and I’ve built several calculation-driven web applications that convert complex spreadsheets and engineering formulas into secure, production-ready systems. I can help transform your rupture-disc sizing spreadsheet into a secure, responsive web application with accurate calculations, audit-ready logging, and export capabilities. Proposed Approach: Backend: Laravel (clean MVC, service layer, validation, unit tests) Frontend: Blade or lightweight JS framework for fast, responsive UI Secure username/password authentication High-precision calculation engine replicating spreadsheet logic Input validation and error handling PDF export (dompdf / Snappy) and Excel export (Laravel Excel) Activity logs storing user, timestamp, and full input set Admin UI or endpoint to filter/export logs Docker-based deployment setup + documentation Security Focus: No hard-coded secrets Environment-based configuration CSRF protection, hashed passwords, rate limiting Clear separation of concerns and audit-friendly code structure Deliverables: Full source code in Git Working demo on my server Deployment & setup guide Commented code and basic tests I’m confident I can match your reference outputs within ±0.1% and follow your provided export layouts. Let’s discuss your spreadsheet structure and timeline. Best, Bhargav
₹25 000 INR en 7 jours
7,0
7,0

Hello , I checked your project, and it looks interesting. This is something we already work on, so the requirements are clear from the start. We mainly work on PHP, JavaScript, CSS, Software Architecture, MySQL, HTML, Web Development, Full Stack Development, Security, API Development We focus on making things simple, reliable, and actually useful in real life not overcomplicated stuff. Let’s connect in chat and see if we’re a good fit for this. Best Regards, Ali nawaz
₹50 000 INR en 8 jours
6,6
6,6

Hey, I’ve reviewed your project and understand you’re looking to turn your rupture-disc sizing spreadsheet into a secure, responsive web application. The focus will be on delivering accurate sizing calculations instantly, while keeping user authentication, activity logging, and export functionality seamless and audit-ready. I can build a full-stack solution with a validated input form, high-precision calculation engine, and instant PDF/XLSX export. The application will include secure login, an activity-logging layer capturing user actions, and an admin interface for easy log review. Code will follow best practices, be well-commented, test-covered, and structured for security audits and easy deployment via Docker or Heroku. Let’s connect so I can share relevant examples and outline the most efficient structure to replicate your spreadsheet accurately and securely. Best regards, Muhammad Adil Portfolio: https://www.freelancer.com/u/webmasters486
₹18 500 INR en 6 jours
6,2
6,2

Hello Client, Hope you are great!!! I read you job description you are looking for web developer. I have sound of 7 years exp in wordpress, PHP, CI, Laravel, Drupal, Joomla and developed 145+ websites with good design. We are using the MVC model for security of website as well as develop three layer security in website and website is high skilled code follow all standards of development. I have been worked on many domain like ecommerce, Martrimony, Hotel Booking, Social, Healthcare, and Sport etc. I provide new vision for website and am always available for your support(24*6) . I hope you will be give positive response. Thanks
₹12 500 INR en 10 jours
5,2
5,2

I will develop a full-stack web application with a secure login system, input form, calculation engine, and export functionality, ensuring high precision and security, with a clear separation of concerns, meaningful commit history, and no hard-coded secrets, delivering a validated and tested application with an activity-logging layer and deployment guide. Waiting for your response in chat! Best Regards.
₹27 343 INR en 3 jours
4,8
4,8

Hi I will develop a high-precision, web-based Rupture Disc Calculator that combines complex engineering formulas with a clean, intuitive user interface. My solution will ensure accurate real-time calculations, responsive design for use on all devices, and a robust backend to handle technical specifications, providing your users with a reliable tool for critical safety assessments. Kundan
₹12 500 INR en 5 jours
4,5
4,5

Hello, I will build your rupture-disc sizing application using a popular full-stack framework and a secure relational database. I will implement a robust authentication layer for user access and a high-precision calculation engine that translates your spreadsheet logic into code. The frontend will feature a validated input form and real-time generation for PDF and Excel exports. To ensure audit compliance, I will integrate a logging layer that records every transaction and login event, accessible via a dedicated admin dashboard. The entire project will be developed following secure coding practices to facilitate your penetration testing and packaged for easy deployment using standard container technology. 1) Can you provide the specific mathematical formulas or the spreadsheet containing the calculation logic? 2) Are there specific corporate branding guidelines I should follow for the PDF report layouts? 3) What is the projected number of users who will require login credentials? Thanks, Bharat
₹32 000 INR en 12 jours
4,8
4,8

Hello, With my passion for clean coding and my proficiency in full-stack development, I am confident that I am the ideal candidate to turn your rupture-disc sizing spreadsheet into a secure, responsive web application. My insistence on constantly refining not just my code but also my approach to security aligns seamlessly with your requirements for easy penetration testing and easy activity log reviewing. Rest assured, any project I deliver to you would have no hard-coded secrets, prioritizing safety without compromising on accuracy. In addition to my technical skills, my experience with a variety of platforms, including WordPress, Laravel, MERN Stack, Node.js, MongoDB, React, and PHP, further enhances my ability to meet your needs head-on. This versatility means that I will be able to handle every aspect of your desired project - from building the validation input form and high precision calculation engine to the admin endpoint or simple UI for activity-logging purposes. A demonstration of the prototype is guaranteed on my own host before I hand it off - ensuring we're both satisfied with the result. Let's create something amazing together! Thanks, Arshiya
₹25 000 INR en 7 jours
4,0
4,0

Hello there, I reviewed your project Rupture Disc Calculator Web Build and understood the requirements at a high level. I focus on delivering clear, stable, and maintainable solutions aligned with the actual scope, I can work with PHP, JavaScript, CSS and follow a clean development process with proper structure and error handling. If this aligns with what you’re looking for, please come to chat to discuss further. Best regards
₹12 500 INR en 7 jours
4,7
4,7

Hello, we are a full stack development team with over seven years of experience turning technical spreadsheets and engineering logic into secure, production ready web applications. Your rupture disc sizing tool would be rebuilt with a clear separation between UI, calculation engine, and logging layer to ensure precision, maintainability, and easy security audits. We would implement a validated input form, a high precision calculation module tested against your reference outputs within the required tolerance, and instant PDF and Excel exports matching your layout. Every login and calculation would be logged with user, timestamp, and input data, accessible through a secure admin endpoint. Clean Git history, no hard coded secrets, and Docker based deployment guidance would be included. Let us connect and plan a secure, test covered build with a working prototype early in the process.
₹20 000 INR en 7 jours
4,3
4,3

Hi, I can build your Rupture Disc Calculator Web Application with precise engineering calculations, clean UI, and reliable performance. I have experience developing formula-based web tools with accurate input validation and dynamic result computation. What I’ll deliver: User-friendly input form Accurate backend calculation logic Real-time result display Export/print-ready output (if required) Responsive, production-ready build I’ll ensure the formulas are implemented exactly as per your engineering standards. Ready to start immediately. Regards, Bharti M
₹35 000 INR en 7 jours
4,0
4,0

I’m fully able to design and build this rupture-disc sizing platform as a secure, production-ready web application. I have experience translating engineering calculations and spreadsheet-based logic into precise, testable backend services, ensuring numerical accuracy and reproducibility. I can implement a responsive, browser-based interface with validated input forms, a high-precision calculation engine that matches your reference outputs within tight tolerances, and instant export generation for both polished PDF reports and structured Excel workbooks that follow your required layout. From a security and audit standpoint, I can build the system with clean separation of concerns, secure authentication, no hard-coded secrets, and full activity logging for every login and calculation event, including user identity, timestamp, and input dataset. I’m comfortable structuring projects for penetration testing and long-term maintainability, with clear commit history, documented code, and containerized deployment (Docker or similar). I can also deliver an admin interface or endpoint for audit log retrieval, along with a full deployment guide and a working hosted prototype prior to final handoff.
₹25 000 INR en 7 jours
3,8
3,8

Hello, I’ve reviewed your requirements carefully, and this is a strong fit for a secure, audit-ready full-stack web application that converts your rupture-disc sizing spreadsheet into a precise, production-grade calculation platform. The focus will be on mathematical accuracy (±0.1% tolerance), clean architecture, security-first implementation, and full traceability of every calculation event. I’d like to clarify a few points to ensure everything aligns from day one: • Will you provide the exact spreadsheet formulas and edge-case rules, or should I reverse-engineer logic from the file? • Do you require role-based access (admin vs. standard user), or is single-tier authentication sufficient for phase one? I’m comfortable translating engineering formulas into well-tested, modular code and can provide a hosted working prototype before final delivery. Automated unit tests will validate accuracy against your reference outputs to guarantee the ±0.1% tolerance requirement.
₹25 000 INR en 7 jours
3,4
3,4

Hey , I am an expert content writer with skills including MySQL, Web Development, CSS, PHP, HTML, Full Stack Development, JavaScript, API Development, Software Architecture and Security. Please contact me to discuss more about this project. Thanks and Regards
₹12 500 INR en 6 jours
4,0
4,0

Hello, I can convert your rupture-disc sizing spreadsheet into a secure, responsive web application with accurate calculation logic, validated inputs, and instant PDF/XLSX exports. The system will include credential-based access, structured activity logging for every calculation, and an admin view/export layer to support audits and penetration testing. I focus on clean architecture, testable calculation code, and secure deployment practices so results stay within your tolerance range and remain fully traceable. I can prototype the workflow and demonstrate it before hand-off, along with clear Docker/deployment documentation. Thanks, Ratan
₹20 000 INR en 7 jours
3,5
3,5

Hi there, I am a strong fit for this scope because I have converted engineering spreadsheets into secure, test-covered web applications with high-precision calculation engines. I have hands-on experience building validated input forms, reproducible numeric models in Python or Node.js, PDF and XLSX export pipelines, and structured activity logging for audit compliance. I would implement a clean full-stack architecture with isolated calculation services, strict input validation, hashed authentication, and an immutable log layer capturing user, timestamp, and parameter sets for every run. I reduce risk by replicating your spreadsheet logic with automated unit tests against reference datasets to guarantee ±0.1% accuracy and preparing the codebase for security audits with no hard-coded secrets. I am available to start immediately and can provide a working prototype on my own host before final hand-off. Regards Chirag
₹25 000 INR en 7 jours
3,2
3,2

✨ Hi! I'm Malix Azis, a full-stack developer experienced building secure engineering calculators like the Zook Z-Size rupture disc tool you referenced. I'll convert your spreadsheet into a responsive web app with username/password auth, input validation for process parameters, and a precision calculation engine that matches your reference outputs to ±0.1% accuracy using the same ASME/API formulas ⚙️. Users get instant results with branded PDF and Excel downloads (via jsPDF and SheetJS), plus comprehensive audit logging of every calculation—user ID, timestamp, inputs, and outputs—for security reviews. The clean MVC architecture with Docker deployment makes penetration testing straightforward ⭐. Would you prefer PostgreSQL or MySQL for the audit trail, or shall I optimize for one based on your existing spreadsheet data structure? Ready to deliver a production-secure engineering tool! Best regards, Malix ✨
₹25 000 INR en 7 jours
3,3
3,3

Hello ? This is exactly my main skills set needed to develop your web application. Spreadsheets aren't ideal solution so it is obvious it will be better this way. Every possible functionality will be covered with protection layers. I am writing clean code. I also always write software documentation and licensing. If I will use any third party libraries, don't worry, I will make sure that it can be used commercially. I am waiting for your pick, so I can deliver your rupture disks sizing program with access control, xlsx and pdf export, events log and audit panel. Take a look at milestones(we can change that if you want). Have a nice day!
₹25 000 INR en 16 jours
2,9
2,9

I propose to develop a secure, responsive web application for your Rupture Disc Calculator. The application will be built using modern web technologies such as HTML5, CSS3, JavaScript (ES6+), and a backend framework like Node.js or Django. I will ensure the application is user-friendly, secure, and scalable. The design will be responsive to work on all devices, and I will implement necessary security measures to protect your data. The project will include both front-end and back-end development, as well as testing and deployment.
₹25 000 INR en 80 jours
3,0
3,0

Vadodara, India
Membre depuis févr. 11, 2026
$250-750 USD
$250-750 USD
$250-750 USD
$10-30 USD
€8-30 EUR
$2-8 USD / heure
₹600-1500 INR
$30-250 USD
₹600-1500 INR
$250-750 USD
$250-750 USD
$10-30 USD
$250-750 USD
£750-1500 GBP
$30-250 USD
$250-750 USD
$15-25 USD / heure
₹1500-12500 INR
₹600-1500 INR
₹12500-37500 INR