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I'm seeking a skilled developer to build a robust web-based ERP system. The system will run on a virtual linux server (ubuntu) or container IN A PROXMOX environment. Database must be postgresql (running in a separat virtual server) Application must run on desktop as well as tablet down to 12". 1. base platform (initial website with the login screen for the users). On this website widgets for the single modules should be created. So every module should be independent app. one widget should be settings, where users can be created and permission granted (admin, manager, engineer,...). Later, inside the setting app the configurations for the different modules will be added in tabs. Main modules: A. Contact module: create, search, modify contacts with all required data. B. Inventory module: create, modify, delete items; show stock information for single parts (history of purchase, price, supplier), generate SKU number automatically. An item can be an assembly consisting of multiple items of the inventory. C. Offer module: create/modify offers based on template, generate pdf. D. Invoice module: create/modify invoice based on template, generate pdf. E. Project module: create modify and delete projects, having a to do list for activities with persons assigned and status indication, showing a gantt overview and a budget overview. F. Integration of CREO API from PTC to handle Creo design files (THIS WILL BE A SEPARATE PROJECT AFTERWARDS) more details in the file, for each module a discussion is required to finalize exactly the module definition. The above single modules will be used as milestones also for payment. Ideal candidates should have: - Expertise in both frontend and backend development. - Proficiency in PostgreSQL. - Experience with ERP systems and their various modules. - Strong understanding of web application architecture and design. Please provide examples of similar projects you've completed.
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267 freelancer chào giá trung bình €7.042 EUR cho công việc này

A Warm Hello! We are readily available to start working on this project! We will design and build a robust, modular, web-based ERP system tailored to your infrastructure and workflows. We have experienced in enterprise-grade web platforms, we specialize in creating scalable ERP solutions with clean architecture, secure role management, and high-performance PostgreSQL backends. We’re ready to begin immediately and build a reliable ERP platform tailored to your operations. Looking forward to collaborating with you. Best regards, Ana
€10.000 EUR trong 70 ngày
10,0
10,0

As an experienced and versatile full-stack developer, I have the extensive skills and knowledge required to design, develop, and implement a powerful ERP system in line with your project specifications. My proficiency in Backend Development as well as my deep understanding of PHP and MySQL make me a perfect fit for this task, ensuring that I can effectively create a harmonious synergy between all the modules. Tablet compatibility and easy controllability within different screen sizes have always been at the core of my responsive development approach to ensure seamless usability on any device. My diverse portfolio includes creating inventory management systems, invoice generation, client relationship management platforms and much more - all key aspects of your complex ERP system. While I have not worked specifically with CREO API from PTC, I am highly adaptable and confident to learn the technology requirements efficiently
€10.000 EUR trong 90 ngày
9,6
9,6

With over a decade of experience in web and mobile development, including expertise in building robust ERP systems, I understand the importance of creating a comprehensive solution for your project. Your need for an ERP system with modules like Inventory Management, CRM, HR, and Invoicing aligns perfectly with my skill set. I have successfully delivered similar projects in the past, showcasing my ability to develop user-friendly interfaces and complex backend functionalities. My proficiency in PostgreSQL, coupled with my experience in ERP systems, ensures that I can meet and exceed your expectations for this project. Let's work together to create a customized ERP solution that fits your specific requirements and enhances your business operations. Feel free to reach out to me to discuss your project in more detail and see how we can bring your vision to life.
€8.000 EUR trong 60 ngày
9,0
9,0

Hello, Hope you are doing well. With 9+ years of experience, we specialize in delivering customized web solutions that precisely meet the clients' requirements. Having worked on various ERP system development projects similar to yours, I am well-versed in the intricacies of these systems and can guarantee a robust and user-friendly product for you. Proficiency in PostgreSQL, which you've set as a key requirement for this project, has been our team's strength for years. Moreover, our expertise extends to both frontend and backend development using technologies like HTML, PHP, CSS, and JavaScript that form the foundation for building ERP systems. Our approach is straightforward: understand the scope in depth, execute with precision, and deliver measurable results I’d be happy to discuss your requirements further and outline the best execution strategy. Best regards, Gaurav P.
€7.500 EUR trong 40 ngày
8,6
8,6

Hi there, I’d love to help you build a robust, scalable web-based ERP system. I have strong experience in full-stack development, PostgreSQL, and designing modular ERP solutions including Inventory, CRM, HR, and Invoicing. I focus on clean architecture, secure data handling, and intuitive user experiences to ensure long-term maintainability. A few quick questions: Do you have preferred tech stacks or frameworks? Will this ERP support multi-company or multi-user roles? Any existing system to integrate or migrate from? Best regards,
€6.500 EUR trong 45 ngày
8,3
8,3

Dear Hiring Manager, I’m excited to apply for the developer role to build your web-based ERP system. I have extensive full-stack experience designing and developing scalable applications that integrate complex business modules, including Inventory, CRM, HR, and Invoicing. My background includes building ERP-style solutions where I designed database architectures in PostgreSQL, implemented secure backend APIs, and developed intuitive, responsive frontend interfaces. I have strong proficiency in both frontend (React, Vue, TypeScript) and backend (Node.js, Python, PHP/Laravel) technologies, and I’m experienced in creating modular, maintainable systems with clear workflows and role-based access. My approach emphasizes performance, usability, and long-term scalability. Previous work includes:- • A custom ERP for a distribution company with inventory tracking, vendor management, and automated invoicing. • A CRM platform integrating lead management, activity tracking, and analytics. • An HR portal featuring attendance, onboarding, and payroll modules. I’d welcome the opportunity to discuss how I can deliver a reliable, user-focused ERP solution tailored to your needs. Thank you for your consideration. Nikhil....
€7.500 EUR trong 7 ngày
8,1
8,1

⭐⭐⭐⭐⭐ Build a Robust Web-Based ERP System with Essential Modules ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project requirements and see you are looking for a skilled developer to build a web-based ERP system. Look no further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for ERP systems. I'll create a comprehensive solution, focusing on Inventory Management, CRM, Human Resources, and Invoicing, ensuring all modules work seamlessly together. ➡️ Why Me? I can easily build your ERP system as I have 5 years of experience in web development, specializing in both frontend and backend technologies. My expertise includes PostgreSQL, web application design, and ERP systems. I also have a strong grip on creating efficient and user-friendly interfaces. ➡️ Let's have a quick chat to discuss your project in detail. I can provide samples of my previous work and show you how I can add value to your project. Looking forward to discussing with you in chat. ➡️ Skills & Experience: ✅ Frontend Development ✅ Backend Development ✅ PostgreSQL ✅ ERP Systems ✅ Web Application Design ✅ Inventory Management ✅ CRM Solutions ✅ Human Resources Modules ✅ Invoicing Systems ✅ API Development ✅ User Interface Design ✅ Project Management Waiting for your response! Best Regards, Zohaib
€6.000 EUR trong 2 ngày
7,7
7,7

Hi i have already built multiple ERP from last 10 year i have built more than 30+ custom ERP and delivered it please come on chat so we can discus further Thanks Manish
€7.500 EUR trong 7 ngày
8,1
8,1

I can help you build a robust, scalable web-based ERP system covering Inventory, CRM, HR, and Invoicing. I’m a full-stack developer with strong experience in frontend + backend development, PostgreSQL, and designing modular ERP-style systems. I’ve worked on business applications that handle inventory tracking, customer data, invoicing, user roles, and internal workflows, with a focus on clean architecture and long-term maintainability. What I bring: Well-structured ERP modules with clear data flow Secure, scalable backend with PostgreSQL Clean, functional UI focused on usability Experience integrating multiple modules into a single system Production-ready code and documentation I’m happy to share examples of similar systems I’ve built and discuss how I’d structure your ERP for future growth. Looking forward to discussing your requirements further Regards Dinesh L
€5.000 EUR trong 20 ngày
8,1
8,1

Hello, I have gone through your detailed ERP panel requirements and understand you need a FULL-FEATURED WEB ERP SYSTEM with Inventory, CRM, HR, Invoicing, Projects, Offers, and Role-Based Access, all built with strong PostgreSQL-backed architecture and professional UI. I have 10+ years of experience in end-to-end ERP development, I can deliver a robust, scalable system that matches your module list and provides clean workflows for users and admins. What I will build: • SECURE LOGIN + MASTER MANAGEMENT (Roles, Permissions, Sub-admin) • DASHBOARD WITH STATISTICS: suppliers, customers, stock levels, contacts, etc. • CONTACT MANAGEMENT: categories, import/export CSV, email history, filters • INVENTORY MANAGEMENT: stock add/edit/delete, PO/SO, check-in/out, bulk Excel upload, stock alerts • PROJECT MODULE: project tracking, team assignments, budget, document uploads • CREO API INTEGRATION for CAD/BOM handling • INVOICE & OFFER MANAGEMENT: templates, creation, history, email sending, expiry, filters Why I’m a strong fit: • Deep expertise in frontend + backend with PostgreSQL • Experience building ERP modules and complex workflows • Clean architecture, role-based access, and scalable design • Agile development with iterative delivery I will provide 2 YEARS FREE ONGOING SUPPORT, complete source code, and full assistance from project initiation to deployment. I have some queries to ask regarding the project to proceed further. Awaiting your positive response. Thanks
€5.000 EUR trong 7 ngày
8,1
8,1

Hi there! You want a robust web-based ERP system running on Ubuntu/containers in Proxmox, with PostgreSQL on a separate server, a login base platform and independent module apps/widgets (Settings/RBAC: admin/manager/engineer). Modules include Contacts, Inventory (SKU auto, assemblies, stock history), Offers/Invoices (template → PDF), and Projects (todos, assignees, status, Gantt + budget). How many users at launch? Should modules run as separate containers or one app with modular boundaries first? Any existing data to migrate? I’ve built modular business systems with role-based access, audited actions, and PDF document pipelines—keeping UI usable on desktop + 12" tablets while the backend stays clean and scalable. Top 1% Full Stack Developer with 15 years experience and 265 5-star reviews. I can share similar admin/ERP-style builds and propose a clear milestone plan aligned to your module payments. If you share the ERP Web Panel PDF + a call slot, then I’ll walk you through architecture, DB schema approach, and the first module definition. Qasar Ayaz | Senior Full Stack Developer P.S. Do you need multi-company support (separate tenants) or one company with departments/roles?
€5.000 EUR trong 15 ngày
7,7
7,7

Hi, Have you outlined the specific requirements for each ERP module you’d like to include? Understanding your needs will help ensure a tailored solution. I have extensive experience in developing web-based ERP systems, including Inventory Management, CRM, HR, and Invoicing modules. My expertise covers both frontend and backend development, with proficiency in PostgreSQL. I recently completed a project where I built a full ERP solution for a mid-sized company, streamlining their operations and improving efficiency. I’m well-versed in web application architecture and design principles, ensuring a scalable and user-friendly system. Let me know if you’d like to discuss this in more detail or see examples of my work. Best Regards, Badar Madni
€6.500 EUR trong 30 ngày
7,6
7,6

I HAVE BUILT MODULAR, PRODUCTION-GRADE ERP SYSTEMS COVERING INVENTORY, CRM, HR, AND INVOICING — DESIGNED TO SCALE WITH REAL BUSINESSES. Hello, I can design and develop a robust web-based ERP system that cleanly integrates Inventory Management, CRM, Human Resources, and Invoicing, using a solid, maintainable architecture backed by PostgreSQL. Proposed Approach • Modular ERP architecture so each module can scale independently • Clean separation of frontend, backend, and data layers • Role-based access control and audit-friendly data models • Optimized PostgreSQL schema for transactional and reporting workloads Core Modules • Inventory Management: stock tracking, movements, reports • CRM: customers, leads, activities, interaction history • Human Resources: employees, roles, attendance, records • Invoicing: invoices, payments, tax handling, exports Technology Stack • Backend: Laravel / Node.js (REST or GraphQL APIs) • Frontend: React (modern, responsive UI) • Database: PostgreSQL • Secure authentication & authorization Deliverables • Full source code (frontend + backend) • PostgreSQL schema & migrations • Deployment and setup documentation • Production-ready ERP system
€5.000 EUR trong 25 ngày
7,6
7,6

Hi, this is Elias from Miami. I reviewed your ERP scope and I understand the architecture you want: a web-based base platform (login + module “widgets”) where each module is an independent app, deployed on Ubuntu/container inside Proxmox, with PostgreSQL on a separate VM. The UI must work well on desktop and tablets down to 12", and each module becomes its own milestone (Contacts → Inventory → Offers → Invoices → Projects). Creo integration is explicitly a later project. I can build this with a clean modular structure (shared auth/RBAC + shared UI components, but isolated module code) so you don’t end up with a monolith that’s hard to maintain. For PDF outputs (offers/invoices), we’ll generate server-side PDFs from templates, and for Projects we’ll implement tasks with assignments + status, a Gantt view, and budget overview backed by proper relational data. Q1: For module independence, do you want true separate services (multiple deployables/containers) or a modular monorepo where modules are separate “apps” but share one backend/API gateway and database? Q2: Inventory: do you need lot/serial tracking, multi-warehouse locations, and assemblies/BOM with cost roll-ups in v1, or keep it to SKU + stock history + assemblies only? Q3: Offers/Invoices: do you already have PDF templates (branding, fields), and do you need numbering rules (per year/per customer) + VAT/tax logic? Regards, Elias
€7.500 EUR trong 7 ngày
7,6
7,6

As an ISO 9001:2008 certified global IT service provider, Carol Data Technology has been delivering superior web and mobile solutions for over a decade. With a team that specializes in diverse areas such as backend and frontend development, I believe we are the ideal fit for your comprehensive ERP system project. Our extensive experience with databases like PostgreSQL and insightful knowledge of both software design and architecture give us a unique advantage in developing the various modules you require. In terms of similar projects we've completed, we have successfully developed ERP systems with integral modules like Inventory Management, CRM, HR, and Invoicing. These solutions showcased not only our technical proficiency, but also our dedication to error-free service within an agreed-upon timeline. In addition to the technical expertise, my team's workflows are enriched by clear communication and daily progress reports that ensure effective project management. By choosing Carol Data Technology for your ERP system development needs, you are opting for guaranteed 100% satisfaction coupled with continued support even after the delivery of the final product. What differentiates us is our mission to not just provide solutions but create long-term business relationships based on trust and top-notch service. Let's collaborate to take your company's processes to new heights of efficiency and productivity together with a robust ERP system!
€5.000 EUR trong 15 ngày
7,4
7,4

Hi, We’ve developed multiple ERP systems with modules like inventory management, CRM, HR, and invoicing. One of our products, Descripio, is a fully-fledged web app that uses AI to automate Amazon product listing optimization, and it includes features like user management, team management, and billing. We also have extensive experience with front-end frameworks like React, Vue, and Angular, as well as back-end technologies such as Laravel, Node.js, and Python. In addition to dedicated developers, we offer product managers and UI/UX designers at no extra cost to ensure your product is built with the right mindset. Let’s schedule a 10-minute introductory call to discuss your project in more detail and see if I’m the right fit for your needs. I’m looking forward to hearing more about your exciting project. Best, Adil
€7.527,75 EUR trong 21 ngày
7,3
7,3

Hi there, I’ve reviewed your PHP project requirements and would be glad to help. With 5+ years of experience in PHP and backend development, I specialize in creating secure, scalable, and high-performing web applications using modern frameworks like Laravel and CodeIgniter. I’ll begin with a clear development plan, share regular progress updates, and ensure the final product is well-tested and optimized for performance and security. Let’s connect to discuss your project goals — I’m ready to get started! Best, Bhargav PHP Developer | Laravel & Backend Expert
€7.500 EUR trong 7 ngày
6,9
6,9

With over 4 years of experience in full-stack development, I've successfully built and deployed custom ERP systems similar to your project's requirements. My proficiency in PostgreSQL, MySQL, and my understanding of backend development will ensure your ERP system performs optimally. From inventory management to HR and CRM modules, I understand the complexity and interplay involved in designing a comprehensive ERP system. My skillset encapsulates both your front-end needs like HTML, CSS, React as well as backend demands such as Node.js, PHP and Python. This flexibility will enable me to build a cohesive, well-integrated web-based platform for you. Additionally, as a problem-solver, What sets me apart is my commitment to clean code and smooth performance which results in easy maintainability and scalability of your ERP system. I bring not only technical skills to the table but also excellent communication that creates streamlined project handling for maximum efficiency. By choosing me for your project, you're guaranteed on-time delivery, dedicated support, and most importantly 100% client satisfaction. Let's work together to bring your vision into fruition with precision!
€5.000 EUR trong 1 ngày
6,5
6,5

Hello!! This is a classic modular ERP build, and the scope you’ve outlined is very familiar — inventory, CRM, HR, and invoicing all sharing one clean data and permission layer. I’ve worked on systems like this where structure matters more than flashy features. I can build this as a web-based ERP that’s reliable, scalable, and easy to extend module by module. How I’d approach it: Design a solid core (users, roles, permissions) that every module plugs into Inventory module with stock tracking, movements, and reports CRM for customers, interactions, and sales context HR module for employee records and basic workflows Invoicing with proper numbering, tax handling, and customer linkage PostgreSQL schema designed for relational integrity and performance Tech approach Backend: Laravel / Node.js (clean, modular architecture) Frontend: React Database: PostgreSQL Role-based access and secure authentication throughout Quick questions before we go deeper: Is this ERP for a single company or multi-company use? Do you want accounting kept simple in V1, or integrated tightly with inventory and CRM? We can start immediately — I will ensure clear, daily communication and fast turnaround. You’ll always know the exact progress. Happy to discuss milestones and timelines.
€6.800 EUR trong 80 ngày
6,4
6,4

Hi I can build a modular, web-based ERP system with fully integrated Inventory, CRM, HR, and Invoicing components using a clean, scalable architecture and PostgreSQL at the core. A common ERP challenge is keeping data consistent across modules, and I solve this with a unified schema, role-based access control, and well-structured API layers that prevent duplication and errors. Your inventory, employee records, customer data, and billing workflows will connect seamlessly so updates in one module instantly reflect in the others. I’ll deliver a fast, intuitive frontend paired with a secure backend optimized for large datasets and multi-department use. My experience includes building custom ERP-style platforms where precision, auditability, and long-term maintainability are critical. If you’d like to extend the system later—analytics, workflow automation, or integrations—the architecture will support it without rewrites. Thanks, Hercules
€10.000 EUR trong 45 ngày
6,4
6,4

Italy
Thành viên từ thg 2 10, 2026
$10-30 USD
$250-750 AUD
$250-750 USD
$100 USD
$30-50 AUD
$2-8 USD/ giờ
$750-1500 USD
tối thiểu 50 USD$/ giờ
₹12500-37500 INR
₹1500-12500 INR
$30-250 USD
$250-750 USD
€8-30 EUR
$30-250 USD
₹12500-37500 INR
$250-750 USD
₹37500-75000 INR
$250-750 USD
₹12500-37500 INR
$250-750 USD