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Core module development — modular business management platform We are building an internal business management platform structured in independent modules, similar in approach to Odoo. This project covers the core module: the foundation that every future module will be built on. Further modules will follow as separate projects with the same developer. 1. Core architecture The base of the whole system. It must support adding new modules later without rewriting or refactoring the foundation. Modular architecture with a clear separation between core and modules Module registration and loading system User management, roles and granular permissions Shared data layer and common services available to all modules Authentication and session management Audit log of user actions 2. Calendar Personal and shared calendars Event creation, editing and deletion Recurring events Participants, invitations and responses Day, week and month views Reminders and links between events and system records Availability checking across users 3. Studio (low-code builder) An administration interface that allows a non-developer to extend the system from the UI, without writing code. This is the most technically demanding part of the project and should be planned accordingly. Create and modify data models and fields from the interface Form builder with drag and drop Configurable list, kanban and detail views Custom fields on existing models Automation rules (conditions and triggered actions) Safe schema migrations, so changes made through Studio do not break existing data 4. Notification system In-app notifications with a notification centre Email notifications with customisable templates Configurable rules defining what triggers a notification and who receives it Per-user notification preferences Delivery queue with retry on failure 5. Calls Click-to-call from any record in the system Automatic call logging linked to the related record Call history and outcome notes Integration with a VoIP provider (to be agreed during the first milestone) Technical requirements Stack: [login to view URL] and TypeScript on the front end, Node and PostgreSQL on the back end Deployment on our own infrastructure, containerised with Docker Clean, documented and tested architecture, since further modules will depend on it Full source code and intellectual property transferred to us on completion Technical documentation covering the architecture and how to build new modules on top of the core How we want to work This is the first project in a series, so we are looking for an ongoing working relationship rather than a single delivery. We need a developer who can make architectural decisions and explain the trade-offs behind them, not only implement a specification. Work will be split into milestones, each funded before it starts and released after our review and approval. In your proposal, please include Your proposed milestone breakdown with amounts and timeline How you would approach the Studio module specifically Relevant previous work on modular or ERP-style systems
Project ID: 40621282
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Ciao, sono esperto in questo tipo di attività perché mi sono occupato per molti anni di controllo di gestione in azienda. Parlo italiano. Vorrei però discutere insieme timeline e budget prima di [login to view URL]: Ciao! Sono Ezio, e credo di essere il candidato perfetto per il tuo progetto. Come un full-stack developer con una vasta esperienza nello sviluppo web e mobile con tecnologie come [login to view URL], React, TypeScript e Flutter, sono familiarizzato con l'intero ciclo di sviluppo, dall'architettura al design del database, all'API development fino all'implementazione front-end. Queste sono tutte abilità che saranno fondamentali per affrontare le sfide dell'architettura modulare che desiderate implementare.
€6,000 EUR in 30 days
0.0
0.0
141 freelancers are bidding on average €1,203 EUR for this job

Hi — Elias here from Miami. I see you’re developing a modular business management platform. The goal seems to be creating a flexible system that can adapt to various business needs and processes. What usually matters most here is ensuring scalability and maintainability. A common issue in systems like this is managing the complexity of integrations and permissions, especially as modules are added. The tricky part is usually ensuring that the architecture can handle future expansion without compromising performance. My approach would focus on a solid microservices architecture, leveraging PHP and Node.js for backend services. This way, each module can evolve independently, which aids in both stability and future-proofing. Implementing Docker for containerization would also streamline deployment and testing. I have worked on similar platforms, optimizing user workflows and integrating complex backend systems. This experience has taught me the importance of building with an eye on potential pitfalls. A few questions to better understand the scope: Q1 – What user roles and permissions do you envision for this platform? Q2 – Are there specific integrations you need to prioritize? Q3 – What scaling expectations do you have as the platform grows? Happy to go through the details and suggest the best technical approach. Looking forward to hearing from you.
€1,200 EUR in 6 days
8.6
8.6

Hi, I reviewed the request for a modular business platform core that supports adding independent modules later, with core services like authentication, roles/permissions, shared data, audit logs, and module registration/loading. I’ll build the foundation using a clear core-vs-modules separation, Node.js and PostgreSQL APIs, and a well-defined extension interface so future modules can plug in safely. For the Studio module, I’ll design a low-code model/field builder with drag-and-drop forms, configurable list/kanban/detail views, automation rules, and safe schema migrations that preserve existing data. I’ll keep the architecture clean, documented, and test-covered so milestones can be approved confidently. Let’s discuss here now.
€750 EUR in 30 days
8.5
8.5

With extensive experience in modular system development, I understand the importance of creating a solid foundation for your business management platform. My past work on similar projects involved designing modular architectures and implementing user management systems. How do you envision the scalability of the core module to accommodate future expansions seamlessly? Regards, Yogesh Kumar
€880 EUR in 7 days
8.5
8.5

Hello, I appreciate the opportunity to work on your modular business management platform. It seems you're looking to create a robust core module that can support future developments without needing significant rewrites. My approach would focus on building a strong, modular architecture that allows for easy integration of new features and maintains a clean separation between core functionalities and additional modules. With 7+ years of experience in software architecture and development, I’ve worked on similar systems that required careful planning and execution. For the Studio module, I would prioritize a user-friendly interface that allows non-developers to make changes confidently, ensuring safety during schema migrations and providing automation capabilities. One question I have is regarding the specific user roles and permissions you envision for the user management system. Best regards, Ivan Mandinski
€1,125 EUR in 2 days
7.6
7.6

Hi there, I can help you with building the core module for your modular platform. I've read through the spec and the Studio module is the one that needs the most careful planning, since schema migrations done from the UI have to be safe and reversible. I'd approach it with a metadata-driven model where Studio writes to a versioned schema diff system, so each change is a migration that can be rolled back if needed. I'm Edward, I've built similar modular systems before and I'm comfortable making architectural calls and explaining the trade-offs. I can send over a milestone breakdown with amounts and a timeline for this first phase. Happy to chat more about this.
€750 EUR in 7 days
7.6
7.6

Hello Hi there, I understand you're looking to develop a robust core module for your business management system. My experience building scalable backend modules for similar platforms means I can quickly deliver a stable, efficient solution. Let's connect to discuss how I can translate your requirements into a functional core module. Giáp Văn Hưng
€947 EUR in 7 days
7.1
7.1

I am an expert backend architect with extensive experience in building modular business management systems using Next. js and PHP. For the Modular Business Platform Core Development, I will implement a robust microservices architecture that ensures scalability and clean separation of concerns. My background includes designing complex relational databases in both MySQL and PostgreSQL while utilizing Docker for consistent deployment environments. I specialize in creating extensible core modules that allow for rapid feature integration as business needs evolve. I have successfully delivered similar internal management platforms that focus on high performance and secure data handling.
€750 EUR in 7 days
6.3
6.3

Building the foundation right is key for a modular business platform. For the core module, I would first focus on a clean separation between core and modules using a plugin-like system, making module registration dynamic and future-proof. User roles and permissions will be designed with granular control, and a shared data layer will be abstracted to allow easy access by modules without tight coupling. For the Studio module, I suggest an incremental approach: start with creating/ modifying data models through the UI, then build the drag-and-drop form and view builders. I'd ensure safe schema migrations by versioning and validation to prevent data loss or breakage, drawing on past experience where I helped a client extend an ERP’s data schema safely from a low-code interface. Some questions to clarify: How complex do you expect the automation rules to be? Do you want the Studio module to support undo/rollback for schema changes? I propose breaking milestones into: 1. Core architecture and module system (4 weeks, 35%) 2. User management, auth, audit log (3 weeks, 25%) 3. Calendar and notification systems (3 weeks, 20%) 4. Studio module MVP and safe migrations (4 weeks, 20%) I have previously helped build modular business systems with similar requirements, focusing on scalable foundations and clean extension points. I am ready to start carving out this core architecture and can deliver a detailed technical plan for the Studio as part of the first milestone.
€750 EUR in 7 days
6.0
6.0

Hi there, Building a robust core module for your business management platform is crucial for future scalability. Without a solid foundation, adding new modules could mean costly rewrites and potential system failures. My expertise in modular architecture ensures a seamless base that supports future growth without refactoring. Here's how we'll tackle it: a clear separation between core and modules, user management, and shared services will form the backbone, ensuring each new component integrates smoothly. Here are my questions to fine-tune the project understanding: What specific functionalities do you envision for the Studio module that will enhance user experience? Can you provide more insight into the notification triggers you plan to implement? Let's discuss your project now!
€950 EUR in 25 days
5.8
5.8

I hope you're doing well! My name is Nawal, and I bring over nine years of experience in Modular Business Platform Core Development. After carefully reviewing your project brief, I’m confident that I understand your needs and can deliver exactly what you're looking for. Here’s what I offer: ✅ Multiple initial drafts within 24 to 48 hours ✅ Unlimited revisions until you're 100% satisfied ✅ Final delivery in all required formats, including the editable master file and full copyright ownership You can check out my portfolio and past work here: ? Freelancer Profile – eaglegraphics247 I’d love to discuss your project further and explore how we can make your vision a reality. Let me know a convenient time for a quick chat! Looking forward to working together. Best regards, Nawal
€750 EUR in 1 day
5.5
5.5

The Studio module is where platforms like this stall. Safe UI-driven schema changes need a metadata-driven field layer, not raw ALTER TABLE calls; a user deleting a custom field can silently corrupt live data without it. I'll split this into three milestones: core module registry, auth, roles and audit log; calendar, notifications and permissions; Studio with VoIP call logging. For Studio, custom fields live in a metadata table resolved at query time, keeping every change reversible without altering the base schema. Happy to share relevant modular platform work in chat. 1. Do you have a preferred module manifest format in mind, or should I propose that interface spec as part of milestone one? 2. For VoIP, are you leaning toward Twilio or an on-prem provider given the self-hosted Docker infrastructure? Looking forward to it. Shayan
€825 EUR in 20 days
5.5
5.5

Hello Dear! Good Day! Hope you are doing fine. This is Ruhul Ajom Sagor. I am an expert "Web Developer" with 10+ years of working experience in PHP, HTML5, CSS3, JavaScript, jQuery, Bootstrap, MySql and different Frameworks. I have completed my B.S.C Engineering in Computer Science and Engineering (CSE) from BUET. Hire me and you don't have to worry about your website problems again! I'll add value to your projects by creating astonishing designs and code with high impact and optimized user interaction that leads to bigger conversions. WHAT PROBLEMS CAN I HELP YOU SOLVE? • Custom Websites Using PHP and Frameworks • e-Commerce Websites (Woo-Commerce and Shopify) • Custom WordPress themes • On-Page and Off-Page SEO • WordPress themes Customization • Database Modeling/Development • WordPress migrations and upgrades • Responsive Coding (Make your website compatible with: smartphones, tablets, desktops) • Websites speed and loading time improvements • Cross-browser compatibility • PSD to HTML to WordPress conversion • HTML5/CSS3/jQuery websites based on Bootstrap I love challenges, talking to my clients, and meeting others’ standards as well as expectations. I will be discussing everything in detail, giving my full advice and delivering through best of my skills. You are cordially welcome to discuss your project. Thank You! Best Regards, Ruhul Ajom
€750 EUR in 7 days
5.6
5.6

I have extensive experience building scalable business systems using Next. js and PHP. For the Modular Business Platform Core Development, I will implement a robust architecture using Docker and PostgreSQL to ensure each module remains independent yet seamlessly integrated. My background in software architecture allows me to design high performance backends that handle complex business logic while maintaining clean code standards. I have successfully delivered similar internal management tools that prioritize security and modularity. I am ready to discuss the technical roadmap for your core modules and can start immediately to meet your development milestones. Let us jump on a brief call to review the specific requirements for your first set of modules.
€750 EUR in 7 days
4.5
4.5

Hi, It looks like you're working on an exciting modular business management platform, focusing on building a solid core that will support future expansions. My goal would be to create a flexible architecture that allows for easy integration of new modules while ensuring that user management, permissions, and data handling are seamless and secure. For the Studio module, I would prioritize a user-friendly interface that empowers non-developers to extend functionalities without needing coding expertise. This includes a drag-and-drop form builder and automation rules that are intuitive and safe for schema migrations. I have experience with modular systems and ERP solutions, focusing on clean architecture and documentation, which is essential as you build out the core. My approach emphasizes clear communication and reliable collaboration to ensure that every milestone aligns with your vision. Best regards, Novalitz Tech
€750 EUR in 14 days
4.6
4.6

Hello, I am excited about the opportunity to work on the core development of your modular business management platform. With expertise in Node.js and PostgreSQL, I will ensure a solid foundation for future module integration. I will focus on creating a modular architecture with clear separation, robust user management, and efficient data handling. For the Calendar module, I will implement personal and shared calendars with recurring events and advanced features like reminders and availability checking. The Studio module will be approached with a focus on creating a user-friendly interface for non-developers to extend the system seamlessly. I will ensure smooth communication during Italy's time for a collaborative workflow. Deliverables will include a well-documented, tested architecture ready for further module development. Best regards, Jamila
€1,100 EUR in 15 days
4.7
4.7

Hello, I hope this message finds you well. I have carefully reviewed your project requirements for the development of the core module for your modular business management platform. With my expertise in Backend Development, HTML, PHP, Software Architecture, and Website Design, I am confident in delivering a robust and scalable solution tailored to your needs. My portfolio: ⭐⭐ https://www.freelancer.com/u/CodeAnchors ⭐⭐ My approach involves structured requirement confirmation, controlled planning, clean implementation, rigorous testing, and milestone-based transparency to ensure the project's success. I am committed to providing reliable execution and long-term results for your business objectives. Considering the complexity of the project, I am well-equipped to handle the core architecture, calendar, Studio module, notification system, and calls feature seamlessly. I have experience in developing modular systems and ERP solutions, making me a strong fit for this project. Could you please share more insights into your top priority or business goal for this project? Let's discuss further in an open chat to finalize the scope smoothly. Best regards, Muhammad Anas Khan
€750 EUR in 8 days
3.8
3.8

I have done this exact setup before. Modular core with clean separation between modules is exactly where PHP or Node projects go wrong when rushed. I would set it up in Docker with Postgres from day one so each module stays independent and scaling later is not a rebuild. Can start today, first module ready in 4 to 5 days. Budget and timeline here are starting points based on the post. Once we go over the actual module list and how they need to talk to each other, I will lock in real numbers. Want me to send a quick scope doc so we can get moving?
€900 EUR in 18 days
3.4
3.4

Hello, It's exciting to see a project aimed at developing a modular business management platform. You want a strong core that supports future modules without the need for major rewrites, which is crucial for long-term scalability. With 8++ years of experience in software architecture and modular systems, I can help you create a solid foundation. My approach would involve designing a clear separation between the core and modules, ensuring user management and permissions are robust. For the Studio module, I’d focus on making it intuitive for non-developers, with a drag-and-drop interface for easy customization. This will empower your team to adapt the system as needed without technical barriers. One question I have is: how do you envision the user experience for the low-code builder? Looking forward to discussing how we can bring this vision to life! Best regards, Saad Ahmed
€1,275 EUR in 7 days
2.7
2.7

Hi there ! This is the kind of platform where architecture matters from the first commit. I can build a modular foundation with clean boundaries, secure roles, and reusable services. The Studio module will use metadata driven models, safe migrations, and flexible builders for future growth. I'll document every milestone, so adding new modules stays predictable and maintainable. Budget : €1,100 Timeline : 4 weeks
€1,100 EUR in 30 days
2.4
2.4

Hi, I see you're looking to develop a modular business management platform, starting with a core module that can support future expansions. My approach would focus on creating a solid foundation, ensuring the architecture allows for seamless integration of new modules without the need for major rewrites. With 7+ years of experience in software architecture and backend development, I've worked on similar modular systems, which has taught me the importance of maintaining a clean separation between core functionalities and add-ons. For the Studio module, I would emphasize a user-friendly interface that empowers non-developers to make changes easily, while also ensuring that schema migrations are safe and efficient. How do you envision the user management system evolving as new modules are added?
€750 EUR in 14 days
2.0
2.0

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