Create a client card (form) service

Budget: 4000 PLN Deadline: 20 days

Hello!

My name is Evgeny, and I have been professionally developing mobile applications, websites, web services, and web applications for 7 years.

*The cost I indicated is for 1 hour of work. To provide a more detailed price, I would like to connect/call and discuss the details.

- You can review my portfolio, feedback, and awards in my profile.

Why should you choose me?
- I have taken 1st and 2nd places in international championships and competitions in the IT field.
- I have verified video testimonials and letters of appreciation.
- I am always available, honest, and reasonable.
- I work under a contract.
- I lead my own development team.

I would be happy to talk to you in more detail about the project. Expand

Budget: 200 PLN Deadline: 1 day

Hello.

I am a NodeJS developer. Ready to take on the task. Write to me, we will discuss.

Budget: 4000 PLN Deadline: 20 days

Hello. My name is Vladimir.

I am an experienced developer with 8 years of experience in creating turnkey websites, mobile applications, and complex web systems.

I specialize in developing modern, responsive, and high-performance solutions. Over 8 years of practice, I have built a deep technical stack:

Frontend and interfaces: HTML, CSS, JavaScript, TypeScript, React.js, Next.js, Vite, Tailwind CSS, Bootstrap, and Elementor.

Mobile development: React Native and Flutter.

Backend and API: Node.js, PHP, Python, Laravel, REST API, and GraphQL.

Databases and caching: MySQL, MariaDB, PostgreSQL, MongoDB, and Redis.

Infrastructure and tools: Git, Docker, Nginx, Apache, Composer, and Linux (Terminal).

I effectively analyze client requirements, propose optimal architectural solutions, and strictly adhere to deadlines. In addition to development, I possess skills in design, technical SEO optimization, and project support. Expand

Budget: 5000 PLN Deadline: 1 day

Hello!

This is a very interesting project. Essentially, it is not just a client database, but a foundation for a future vertical CRM/ERP platform with mobile applications, a form builder, document management, and high security and GDPR requirements.

At Mobiwolf, we have experience in developing complex web and mobile systems with user roles, CRM functionality, file storage, action auditing, integrations, and personal data protection.

From the description, it is clear that the MVP already contains a large volume of functionality: a card builder like Forminator, a role and access system, change history, file storage, mobile applications, action auditing, GDPR, and backup. For such a project, it is especially important to correctly lay the architecture from the first stage to later painlessly add a calendar, payments, AI, inventory management, and other modules.

The technology stack you propose (React/Next.js + NestJS + PostgreSQL + S3 + React Native) looks quite logical and well-scalable.

For an accurate assessment, I would like to clarify:
• whether there are ready-made interface mockups;
• whether mobile applications are needed in the MVP or if an adaptive web version is sufficient at the first stage;
• how many card templates need to be implemented at the start;
• whether multi-tenancy (multiple clinics/branches) is planned.

After discussing the details, we can prepare a phased implementation plan, budget assessment, and timelines.

Best regards,
Oleksiy
CEO, Mobiwolf Expand

Budget: 12000 PLN Deadline: 30 days

Good day, Oleksandr.

For your SaaS platform, I see three critical cores that are important to establish correctly from the very beginning:

1. Dynamic card/form builder
2. Role-based access model for clients, fields, and files
3. Secure handling of personal and potentially medical data: audit log, private file storage, GDPR/RODO, consent history, data export/deletion

I am a backend/full-stack developer with 11+ years in IT. I have worked with production systems, APIs, admin panels, roles, files, queues, caching, logging, integrations, and complex business logic.

For such a project, I would suggest not starting immediately with web + Android + iOS + all future modules, but first creating a strong web MVP with an API. This will allow for a quicker working system, validate the core logic, and avoid unnecessary costs on mobile applications before the business part is stabilized.

I can share my portfolio in private and discuss relevant product projects I have worked on: systems with a large number of users, APIs, roles, admin panels, files, exports, payment integrations, logging, security requirements, and handling personal data.

I can also propose a phased MVP plan: what should be done in the first release, what is better to move to the next stages, and where there are risks that are important to consider before starting development.

I would be happy to discuss the details and show examples of similar solutions.

In my bid, I am focusing on the first month of work on the web MVP: architecture, client database, roles, card/form builder, and basic API. The full scope of the project, including mobile applications and additional modules, is better assessed separately in phases. Expand

Budget: 2500 PLN Deadline: 45 days

Good day!

Thank you for the very detailed specifications. I work with React/Next.js and React Native, and I have experience with projects where security, access rights, and handling personal data are important.

I suggest breaking the MVP into stages to get a working system as quickly as possible:
1) Designing the architecture and data model (clients, form templates, roles/permissions, audit).
2) Web version + admin panel (template editor, roles, action log, file access via S3-compatible storage, protection against XSS/CSRF, 2FA).
3) Mobile client on React Native for Android/iOS, with the same API.
4) Implementation of GDPR/RODO procedures (data export, deletion, consent log) and backup.

I estimate the timeline and cost as a combined price + time for the MVP; I will provide details after a brief clarification session (file handling methodology, release/deployment, module priorities). Expand

Budget: 10001 PLN Deadline: 90 days

Good day! I read the specifications. This is a platform-builder: the core is a dynamic forms engine (like Forminator Pro) + RBAC, around it a client database, files, auditing, GDPR; data security is a priority.

I already have a working interactive prototype of the card builder and role matrix on the production stack (Next.js/TS) — ready to show in private now. This will significantly speed up the server part, as the core is already designed.

Plan: DB (PostgreSQL), authorization + 2FA, RBAC, client database, form builder on the backend, private files, auditing, GDPR, responsive. Mobile version — after the web version. Estimated time for the web version is ~50–60 days, exact — after clarifying details.

Questions: 1) one organization or franchise/branches? 2) signature — drawing or electronic signature? 3) right to be forgotten — deletion or anonymization?

I will send access to the demo in private. Thank you!

Budget: 90 PLN Deadline: 1 day

Hello! I am a Flutter developer, specializing in mobile frontend for Android and iOS. I can implement the mobile part of your platform: client cards, forms, files, photos, roles, authorization, and integration with backend/API. For an accurate estimate, I need: — design or prototype; — list of screens for MVP; — API documentation; — description of roles and access rights. After reviewing the materials, I will be able to assess the timeline and cost of Flutter development.

Budget: 500 PLN Deadline: 7 days

Hello, I am an experienced developer. Interesting task! I will use React/Next.js for the frontend and Node.js/NestJS for the backend, as well as PostgreSQL for the database. For integration with S3-compatible storage, I will use the AWS SDK. Question: which specific modules need to be integrated first?

Budget: 15000 PLN Deadline: 7 days

Hello, Oleksandr!

To better understand the project, please clarify:
1. Do you already have a ready design or interface requirements?
2. What is the priority of the modules for the MVP? What should be implemented first?
3. Is there a need for integration with existing systems or services?
4. What is the expected number of simultaneous users of the system?

Regarding implementation:
- First, I will develop the architecture of the platform considering scalability and security.
- Next, I will implement the basic modules (customer database, form editor), ensuring stable operation and data protection.
- After that, I will integrate mobile applications using React Native or Flutter for convenient use from any device.
- I pay special attention to security: I will implement data encryption, protection against attacks, and user action auditing.

I ensure transparency in the development process, regular reports on completed work, and flexibility for further development and integration of new modules.

Oleksandr, please write your answers to the questions in private messages — we will discuss the details and I will propose an optimal implementation plan. Expand

Budget: 4500 PLN Deadline: 30 days

Alexander, good day!

I am interested in your project and I am ready to take on its execution.
I have extensive experience in developing similar CRM/ERP systems and admin panels - I am happy to help.

Here are the works I am NOT ASHAMED OF -
Behance

Other works
Behance

I am open to communication and discussing the details. Expand

Budget: 15000 PLN Deadline: 84 days

Good day! I have read the specifications completely — the project is large but architecturally clear.
Stack — full match:
Next.js + NestJS + PostgreSQL + S3 + React Native — this is exactly what I am working on.
Regarding the key blocks:

Client map editor with custom fields (drag-and-drop form builder like Forminator) — I have implemented something similar.
Roles and permissions with granular access — through CASL or custom middleware.
File storage with private access via signed URLs (S3/R2) — no public links.
Action audit (who/when/what changed) — a separate log table with IP.
GDPR/RODO — consents, export, right to be forgotten — I will implement from the first stage.
2FA, brute-force protection, encryption — standard practice for medical data.

Mobile application — React Native, one codebase for Android and iOS.
Realistic MVP estimate:

Web platform (client database + map editor + files + roles + security): $4,000–6,000 / 8–12 weeks.
Mobile application: +$2,000–3,000 / 4–6 weeks in parallel.

I am ready to break it down into stages with milestone payments. I suggest starting with a short call to agree on the MVP priorities. Expand

Budget: 12000 PLN Deadline: 70 days

Hello, Alexander!

I have studied the technical specifications. In my opinion, this is not just about a CRM, but a SaaS platform with a client card builder, a flexible role system, action auditing, file storage, and further scaling for additional modules.

For such a project, I would recommend the stack Laravel + React + Inertia.js + PostgreSQL. It allows for faster development of complex business systems, ensures high security, convenient work with roles and access rights, action auditing, APIs, and integrations. At the same time, the architecture remains scalable for future modules (calendar, warehouse, payments, AI, analytics, etc.).

I have experience in developing CRM systems, complex business logic, working with files, APIs, and multi-level access rights. I am ready to discuss the MVP architecture and propose an optimal implementation plan.

Budget: 8200 PLN Deadline: 27 days

Hello, Alexandr!

Our IT company creates and improves websites that operate stably, quickly, and solve specific business tasks for clients. We specialize in developing websites "from scratch" as well as enhancing existing solutions, increasing their performance and user experience for your users.

We have experience in:
- developing responsive and fast websites on various platforms (WordPress, OpenCart, Shopify, WIX);
- integrations with payment systems, CRM systems, external services, and internal systems;
- optimizing website performance and security;
- setting up analytics and basic SEO tools;
- software development and automation of business processes: managing customer databases, resource accounting, automating repetitive tasks, integrations with third-party systems;

After completing the project, we provide 14 days of technical support, during which we help adapt the system to your final business processes and consult on any questions regarding the completed work area. Thanks to the free support of the completed project, this allows you to be confident that the developed solution operates stably from the moment of launch and does not require any additional adjustments.

We work in a structured, responsible manner - focused on results that meet your business goals. Expand

Budget: 50000 PLN Deadline: 110 days

I already have a practically ready similar solution for client cards, form editor, roles, files, and activity log; it can be quickly adapted and launched step by step here on the marketplace.))
We can take the first full MVP for 760,000 UAH and 110 days - web version, API, client database, card template editor, files, photos, signature, GDPR/RODO consents, roles, audit, backups, and basic mobile applications for Android and iOS.
A similar case in logic - https://business.ingello.com/lita-doctor - medical questionnaires, personal data, roles, and access control.
Another close example - https://business.ingello.com/forma-crm - CRM, cards, business processes, user rights, and change history.
Relevant to the topic - https://business.ingello.com/fractal - modular architecture, automation, and preparation for future artificial intelligence modules.
For implementation, I see Next.js, NestJS, PostgreSQL, and S3-compatible storage, while the mobile part is better done in React Native to avoid duplicating logic for Android and iOS.
Look, there's a nuance... for such cards, not only the form is important, but also the access rights to each field, document, and user action, so I am including 2FA, login logs, closed links to files, change audit, and backup recovery.
From you, I need examples of 2-3 real cards, a role matrix, file storage requirements, and the priority of future modules - calendar, payments, inventory, store, artificial intelligence.
Should the administrator configure calculated and hidden fields themselves, or should we set the formulas on our side at the first stage?
Should the client cabinet be included in the MVP, or is it enough to have roles for the team for now?
The main Ingello page for the marketplace - https://systems-fl.ingello.com/ua- Expand

Budget: 4000 PLN Deadline: 21 days

Hello!

Our team is ready to implement the "turnkey" project — from design to full development and launch. We have experienced developers, designers, and UX/UI specialists in our team, so we can create a convenient, modern, and functional product according to your requirements.

We will be able to determine the deadlines and budget accurately after discussing the details and understanding the full scope of work. I would appreciate your feedback, and I can send examples of our work in private messages.

Budget: 4200 PLN Deadline: 27 days

Hello! I see the essence: a client card platform with a Forminator Pro level form builder, a client database, files and photos, signatures, visit history, roles and permissions, a web version plus mobile applications, and an architecture ready to integrate modules for calendar, store, payments, inventory, AI, and analytics.

The key here is not separate screens, but two frameworks. The first is a dynamic form engine, where the admin assembles fields, text, date, select, file, photo, signature, calculated fields, sections, and groups, with various card templates for a single client entity. This is done through a field schema in the database, not hardcoded, so new card types can be added without rewriting. The second is a role-based permissions model, determining who can view, edit, delete, export, at both the record and individual file levels.

For file storage, an S3-compatible storage solution, R2 or MinIO, with categories, access restrictions, and backups. Regarding security, since this involves personal and medical data, I am implementing HTTPS, protection against SQL injections, XSS and CSRF, rate-limiting, and brute-force blocking at the entry point, along with GDPR consent as a separate entity.

As for the stack, you mentioned Node.js plus NestJS or Laravel, React, PostgreSQL, mobile with React Native or Flutter, which is a suitable choice for the task. My main backend stack is Python plus FastAPI, on which I will build the same architecture with REST or GraphQL for web and mobile, if you are open to the stack. If the team is fixed on Node, I am ready to discuss participation in architecture and backend logic.

This is a large MVP, so I would start by breaking it down into iterations, first the client database, form builder, and roles, then files and the mobile client. Please let me know, is the backend strictly on Node or Laravel, or is the stack still open for discussion, and do we need mobile applications in the MVP right away, or should we start with the web version?

Budget: 6500 PLN Deadline: 29 days

Good day. I am ready to complete this project for you, I have experience in developing large systems with sensitive information (educational products, medical). I have experience in designing high-load systems. I will provide technical documentation necessary for further development for the project.

Budget: 18200 PLN Deadline: 30 days

Good day.
This is a very interesting project and at the same time complex.
Do you understand that even an MVP is a very long-term collaboration?
Just the backend development will take 1-2 months of work.
I am a fullstack senior developer with over 10 years of experience.
I built an online taxi system (IQTaxi) from scratch that successfully operated in a competitive market for 6 years under my management.
I always write secure code that meets the requirements you listed above.
I do everything with quality and speed.
If you are interested in my experience - feel free to message me privately.

Budget: 3601 PLN Deadline: 25 days

Hello! I have reviewed your detailed specifications. The task is completely clear, and the architecture and security requirements (GDPR, action logging, file protection) are professionally outlined.

I am ready to fully take on the technical implementation and coding for the entire project turnkey (Backend NestJS/Laravel, Database PostgreSQL, Web Next.js, and mobile application React Native/Flutter).

On my side, I will perform:

Designing and creating the database structure (considering dynamic card templates).

Developing the security architecture (RBAC, Audit Log, generating Pre-signed URLs for S3 file protection).

Writing clean code for the server side, web panel, and mobile applications according to the specifications.

What you need from your side to start:
Since this is a large-scale SaaS project, deployment will take place on your resources. Access to hosting/server for deployment, S3 storage, as well as ready corporate Apple Developer and Google Play Console accounts for further publication of the applications will need to be provided.

I am ready to discuss the development stages, break the project into sprints, and get started. I look forward to your response in private messages! Expand

Budget: 4000 PLN Deadline: 1 day

Good day. I am ready to complete this project as I have extensive experience in app development.

Budget: 4200 PLN Deadline: 1 day

Hello!

I am ready to take on this project, message me privately, and we will discuss the details!

Next.js, Node.js/NestJS, PostgreSQL, S3, React Native — I am familiar with this stack and work with it constantly. I understand the specifics of GDPR, role-based access, and data security. I have experience with such functionality.

Feel free to reach out!

Budget: 4400 PLN Deadline: 27 days

Good day. I am an individual developer with over 4 years of experience in Full-stack development, database automation with Supabase/PostgreSQL, system administration, and AI service integration. I work officially through a sole proprietorship, ensuring direct, transparent communication without intermediaries and guaranteeing the complete absence of technical debt in your project's architecture. I will independently develop a web application on Next.js and a server core that fully meets security criteria: from account protection with session auto-completion to file encryption in S3 storage and implementing the right to be forgotten under GDPR. The system will support calculated fields, component groups, and flexible database search for authorized specialists, and my approach to building clean and resilient commercial architectures is presented here: 3magency.co, https://vilors.studio/.

Budget: 3000 PLN Deadline: 30 days

Hello. Our small team has been engaged in designing business solutions, backend engineering, mobile development using React Native/Flutter, and internal SEO/Performance optimization for over 4 years. Creating a large-scale platform for managing customer cards with its own form builder is a task that fully aligns with our expertise, where we guarantee the development of clean, modular architecture ready for AI integration, analytics, calendars, and finance. We will take on the entire scope of work: from creating a responsive interface for PCs and smartphones to setting up a secure server API on NestJS or Laravel with encryption of critical data in the database, asynchronous media loading, and a complete audit log of staff actions to protect against information leaks. You can familiarize yourself with the level of our technical autonomy and the quality of implementation of complex interactive systems at the following links: freshagro.com.ua, farfieworldwide.com, rivnekolo.com.

Budget: 6000 PLN Deadline: 27 days

Good day. My colleague and I have been specializing in Full-stack development, database refactoring, server-side caching, and building closed corporate web applications with enhanced security requirements for over 4 years. We will implement a cross-platform client card platform for you, using the Next.js, Node.js, and PostgreSQL stack, and organize secure work isolation through staging and pull requests. We will design the system core considering dynamic templates (medical questionnaires, visit protocols), implement a role-based access control (RBAC) model for all seven types of users from owner to podiatrist, set up two-factor authentication (2FA), protection against SQL injections, XSS, CSRF, and brute-force attacks, as well as automatic database backups several times a day. Examples of our technical expertise in developing secure, high-load, and optimized solutions are presented in our portfolio: drkukharevich.rivne.ua, crave-agency.com.ua, jk-solution.com.ua.

Budget: 5000 PLN Deadline: 30 days

Hello. My partner (designer + full-stack) and I have over 4 years of experience in designing complex CRM systems, dynamic form builders, and secure architectures with automation of pre-press and e-commerce modules. We are ready to develop the MVP of your client card platform based on Next.js, NestJS/PostgreSQL, and React Native, laying down a flexible logic of relational connections for a custom field builder similar to Forminator Pro, where each input type (from files and photos to digital signatures) will have strict validation. We will pay special attention to a comprehensive security layer: we will close direct access to the database from the internet, implement temporary signed URLs for access to S3/R2 storage without public links, connect user action logging (Audit Log with field change tracking, IP, and time), and develop mechanisms for data export and deletion to ensure full compliance with GDPR/RODO standards. Our engineering approach to building scalable, fault-tolerant, and secure commercial ecosystems is reflected in our portfolio: hyperfi.tech, espressolab.com.ua, hudi.com.ua.

Budget: 5000 PLN Deadline: 30 days

As a Full-Stack developer, I specialize in your technology stack: React/Next.js, Node.js/NestJS, PostgreSQL, and React Native. I have experience in developing complex CRM systems and wellness applications from scratch (specifically, I recently launched a mobile client and management system for a fitness studio), so I understand very well how to implement such functionality correctly. I am located in the EU and know a lot about GDPR.

Since I am just starting to build a local rating on this platform, I am ready to offer you the best conditions in terms of cost (promotional rate) while maintaining top quality, code cleanliness, and architectural security.

Budget: 5000 PLN Deadline: 15 days

Hello, Alexandr Suprun.

I love this opportunity.
As a full stack developer, I have extensive experience in react/next.js, node/nest & laravel backend, postgresql & database design and optimization and so on.

Based on my experience, I think that this position is good fit for me.

I am ready to start right now and I can complete the platfrom as well based on your shared data.

Feel free reach out to me any time.

Thank you, youssef. Expand

Budget: 4000 PLN Deadline: 20 days

Good day, Oleksandr!
I have considered your specifications. As I understand, this is not about a regular CRM, but about a platform-builder for client cards with its own form editor, file storage, a flexible role system, and further development into a full-fledged ecosystem with additional modules.

I have experience in developing complex web systems, CRMs, and SaaS solutions with a multi-level access system, user action auditing, and working with personal data.

For such an MVP, it would be logical to implement:
* Next.js for the web interface
* NestJS or Laravel for the server side
* PostgreSQL for storing structured data
* S3-compatible storage for files and documents
* React Native for mobile applications
* REST API for further scaling

The key module, in my opinion, is the form and card template builder, where the administrator can independently create the structure of questionnaires, protocols, consents, and medical records without involving a developer. As an option, a drag-and-drop editor can be implemented based on Forminator Pro logic, supporting various types of fields, groups, sections, and conditional display of elements.

Special attention should be paid to the access rights architecture, audit log, and file handling, as these modules will be used in practically every future expansion of the system.

It is advisable to lay down a scalable structure from the start, so that in the future, a calendar, inventory accounting, finance, AI modules, analytics, and other business processes can be connected seamlessly without reworking the core of the system.

I have 16 years of experience in web project and corporate system development. I am ready to discuss the architecture of the MVP, the stages of implementation, timelines, and budget. Expand

Budget: 3600 PLN Deadline: 25 days

Hello! I have experience in creating websites and forms. I am ready to collaborate. I offer a loyal price and quality work. Write to me)

Budget: 9000 PLN Deadline: 100 days

I carefully reviewed your request and am fully prepared to provide a complete work plan and project images. The only condition is to send directly through the platform, so my work remains exclusively for you. I am confident that my professional approach will meet your expectations and deliver tangible results.

Budget: 10000 PLN Deadline: 60 days

Good day!

Extensive experience in developing web projects and turnkey mobile applications. Experience in developing information processing systems, freelance exchanges, and management systems.

I use the following technology stack: PHP (Laravel), React Native, MySql, Vue, Jquery, Bootstrap, ElasticSearch.

Budget: 1234 PLN Deadline: 45 days

Good day. I can help, but the task is not easy. It needs to be broken down into stages, first creating an MVP, and then everything else. Special attention should be paid to security, as we are dealing with personal data. If you are interested, please contact me in private messages where we will discuss all the stages of action.

Budget: 4000 PLN Deadline: 10 days

Hello! I will complete your task quickly and efficiently. I will develop on NEXT.js and the backend on Laravel or Node.js.

My recent works:
https://indexfast.pp.ua - fast site indexing
https://mamamia.pp.ua - online store
https://programist.pp.ua/ua/portfolio/ - portfolio of works
https://monitortest.pp.ua - monitor testing
https://keytest.pp.ua - keyboard testing

My portfolio: https://freelancehunt.com/ua/freelancer/romas6ka.html#portfolio
Message me, I will start working today. I will be happy to collaborate with you! Expand

Budget: 20000 PLN Deadline: 60 days

Good day, I have been in web programming for over 9 years. I work with REST APIs, frameworks, and CMS such as Django, Laravel, Yii2, WordPress, OpenCart, CodeIgniter, etc. I am ready to complete the task. Reviews: Freelancehunt

Budget: 20000 PLN Deadline: 60 days

Hello. Everything can be done on one stack - bubble.io. This bubble was created for that. Feel free to reach out.

Budget: 777 PLN Deadline: 7 days

Hello! I specialize in Flutter development for iOS and Android, Web, Windows, and I am in the top 10 in the field of hybrid applications on freelance platforms. I have experience in both independent application development from scratch to release and working in commercial companies. I have also published applications in the App Store and Google Play - from preparation to full release. Proofs are in the reviews, links to apps in the stores - I can send them in PM if needed.
I offer to create your project with Flutter front-end for any client needs - web, mobile, desktop, as well as an admin panel and backend in Python.

Budget: 500 PLN Deadline: 3 days

Hello! Your project caught my attention. I am ready to start working and ensure high quality execution.

Budget: 100 PLN Deadline: 1 day

Hello. I have been working with React and Node.js for over 9 years. I am ready to collaborate. Can I take a look at the design?

Budget: 10000 PLN Deadline: 30 days

Доброго дня
Мій стек: Next.js 15/16, TailwindCSS, Tanstack Query + NestJS / Prisma / PostgreSQL
Портфоліо: https://aleksandr-t.vercel.app/uk