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We are looking for an experienced Full-Stack Developer or development team to build a custom web-based Construction ERP system for a contracting company. The ERP will include Project Management, Tender & BOQ Management, Procurement, RFQ, Supplier Quotations, Purchase Orders, GRN, Inventory, Project Cost Control, Approval Workflows, Document Management, Dashboards, Reports, Multi-Company, Multi-Branch, Roles & Permissions, Arabic/English support, and responsive web access. The system must be production-ready, modular, scalable, secure, API-ready, and fully integrated between modules. We already have a detailed Scope of Work covering technical requirements, milestones, acceptance criteria, source-code ownership, deployment, warranty, and maintenance. Budget: USD 1,500 base development fee + up to USD 500 performance/quality bonus. Payment: Fixed-price milestone payments through Freelancer. Full source code, database, Git repository, deployment files, and ownership must be handed over to the client. Please apply only if you have previous experience building ERP, procurement, project management, or construction management systems. Include examples of similar systems you have developed.
Project ID: 40635994
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231 freelancers are bidding on average $1,236 USD for this job

Greetings, I am a Full Stack Developer specializing in enterprise ERP systems and construction management platforms. I'll build your comprehensive Construction ERP with Project Management, Procurement, RFQ, Purchase Orders, Inventory, Cost Control, multi-company architecture, role-based access, Arabic/English localization, and fully integrated dashboards and reporting. The system will be production-ready, modular, scalable and API-driven with complete source code ownership and deployment documentation provided. Have you finalized your detailed Scope of Work document and identified your preferred tech stack for backend and database? Better we do a quick chat to ensure few things about the task. Ping me when you're available.
$1,500 USD in 60 days
9.4
9.4

I am well-equipped to develop a comprehensive Construction ERP system tailored to your contracting company's needs, prioritizing production readiness, modularity, scalability, security, and integration. I have experience in similar projects and can ensure the system meets your requirements and future growth. I am eager to discuss preferred technologies, integrations, timelines, and scalability expectations. Let's explore potential third-party integrations and post-deployment support options. With expertise in ERP development, project management, and procurement systems, I am confident in delivering a user-friendly, efficient, and secure ERP system. I am committed to collaborating closely with your team to exceed expectations. Let's schedule a call to discuss your requirements further and bring your vision to life effectively.
$1,350 USD in 5 days
8.8
8.8

Hi there, I understand you need a comprehensive Construction ERP system with project management and tender functionality. I have extensive experience building custom ERP solutions using Laravel and MySQL, specifically tailored for construction companies. My approach involves creating a robust full-stack application with separate modules for project tracking, tender management, resource allocation, and financial oversight. The system will feature real-time dashboards, automated workflows, and mobile-responsive interfaces for field teams. I'll implement secure user authentication, role-based permissions, and comprehensive reporting capabilities. The architecture will be scalable using Laravel's MVC pattern with optimized database design for handling large construction datasets. API integration will ensure smooth data flow between different modules while maintaining data integrity across all operations. I've successfully delivered similar construction management systems that improved operational efficiency by 40% and reduced manual paperwork significantly. Best Regards, Khorshed Alam, RS Software
$1,245 USD in 12 days
9.5
9.5

Hi — Elias here from Miami. I see you are looking to develop a custom web-based ERP system. This is a significant project that can streamline your operations and enhance productivity. What usually matters most here is ensuring that the system is scalable and maintainable. A common issue in systems like this is the complexity of managing various user roles and permissions, especially as your team grows. The tricky part is usually integrating different modules smoothly while ensuring data integrity and security. My approach would involve structuring the application in a modular way, using Laravel for robust backend architecture. This will facilitate easier updates and maintenance. I prioritize building a solid foundation that accommodates future expansion and integrates seamlessly with other tools you may use. I've worked on several ERP systems, focusing on user management and API integrations, which has given me insight into common pitfalls and best practices. A few questions to better understand the scope: Q1 – What specific functionalities do you envision for user roles and permissions? Q2 – Are there existing systems or tools you need to integrate with? Q3 – What are your expectations regarding data reporting and analytics? Happy to go through the details and suggest the best technical approach. Looking forward to hearing from you.
$1,200 USD in 6 days
8.5
8.5

Hi, I can build a custom web-based Construction ERP system for your contracting company. I have experience in developing ERP systems and can provide examples of similar projects. I will follow your detailed Scope of Work and ensure the system is production-ready, modular, scalable, and secure. I will also make sure it is API-ready and fully integrated between modules. Let’s discuss your project further. I am ready to start! Thanks!
$2,000 USD in 30 days
8.3
8.3

Hi, I have strong experience with Php, Laravel and Code ignitor. I’ll develop robust and secure web application just the way you want. I can handle any updates you need. You can check my reviews to see the quality of my work, I will share my previous application in private chat. Lets connect in chat so that We discuss further. With Regards, Sai
$750 USD in 20 days
7.8
7.8

Hello, Basmat Al-Emar Co. Ltd.!! I HAVE DEVELOPED ERP, PROCUREMENT, PROJECT MANAGEMENT, AND BUSINESS MANAGEMENT SYSTEMS, AND I CAN SHARE RELEVANT PROJECT EXAMPLES. >>>> Multi languages (English and Arabic)Left-To-Right (LTR) and Right-To-Left (RTL) <<<< I have carefully reviewed your Construction ERP requirements and understand that this is a fully integrated business system rather than a collection of separate modules. The key is to build a strong core architecture where projects, BOQ, procurement, suppliers, inventory, costs, approvals and reporting work together without duplicated data or hard-coded business rules. I have 10+ years of full-stack development experience and can build a modular, scalable ERP covering multi-company, multi-branch, departments, users, roles/permissions, approval workflows, tender and bid management, BOQ, estimation, tender-to-project conversion, WBS, tasks, milestones, scheduling, progress tracking, daily site reports, RFIs, variations, cost codes, budgets, committed costs, procurement, PR/RFQ, supplier quotations, PO, GRN and inventory. Arabic/English support, responsive access, API-ready architecture, secure authentication, auditability and configurable workflows will be considered from the beginning rather than added later. I WILL PROVIDE 2 YEARS OF FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE. Thanks, Christina
$1,500 USD in 25 days
8.1
8.1

---->>> Custom Construction ERP System || Checked Doc <<<---- Hello, I've carefully reviewed the complete SOW and understand that you need a fully integrated, production-ready Construction ERP, connecting tendering, BOQ, project execution, procurement, inventory, cost control, contracts, finance, HR, assets, documents, approvals and reporting within one centralized system. Multi-company, multi-branch, multi-project & role-based access Tender, BOQ, estimation & tender-to-project workflows Project, WBS, tasks, milestones, progress, RFI & variation management PR → RFQ → Quotations → Comparison → PO → GRN → Invoice workflow Inventory, warehouse, material requests & stock traceability Project budget, committed/actual cost & cost-control dashboards Contracts, subcontractors & payment certification Finance, HR/payroll, assets & equipment management Document management, audit trail, approvals & notifications Executive/project/procurement dashboards and reports Arabic/English with RTL/LTR and responsive web access Let's connect to review the SOW, proposed architecture, milestones and delivery approach. Thanks!
$1,500 USD in 7 days
8.2
8.2

Hello, I your "Construction ERP System Development" project description in detail and undertood your requirements. I've worked on many PHP projects in recent times. So I am confident on achieving your expected Goals. Please initiate a communication thread to discuss further and start with the project. ⭐ 5.0/5 from a recent client: "Project was delivered before Time with Best professional Knowledge One could ever held. Thanks for the support" Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
$900 USD in 18 days
7.7
7.7

Hi, A construction ERP lives or dies on its approval workflows and inter-module data flow, so my first question is around the Scope: are the approval chains fixed per company, or configurable per branch and role? That decides whether the workflow engine is a lookup table or a rules layer, and it changes the whole data model early. I've spent 15 years in full-stack work and as part of MangoCoders have built modular Laravel systems with role based access, multi-tenant structure, and dashboards. One close example is an event platform we ran for Abu Dhabi Finance Week with SSO, real-time updates, and a heavy backend. ADFW: streamlined event and attendee management on Laravel and AWS. Arabic and English means right-to-left layout planned from the start, not bolted on. Since there's no history between us, we can structure the first milestone around the core data model and one full module so you only release on delivered, working code. Can you share the Scope document so I can map it to milestones? Adil
$1,031.25 USD in 21 days
7.4
7.4

Hello, this is a serious ERP build and not a simple website project, so it’s good that you already have a detailed scope, milestones, and acceptance criteria in place. I have experience with custom systems involving procurement flows, approvals, inventory logic, dashboards, permissions, and scalable admin architecture. I can help you build this as a secure, responsive, modular web platform with proper handover of codebase, database, and deployment assets. Happy to review the scope here and map out the delivery plan module by module.
$1,490 USD in 7 days
7.6
7.6

Hi there, I understand you need a system to manage the full construction lifecycle. It begins by converting a successful tender into a project with a BOQ. This drives procurement (RFQs, POs) and updates central inventory via GRNs. Costs are tracked against project budgets in real-time, with key actions gated by multi-level approval workflows. Technical approach: We recommend a modular system using Laravel (PHP) for the API and React.js for the responsive web app. PostgreSQL is ideal for the database, ensuring data integrity for financial tracking. Core modules: The platform will handle the complete Tender-to-Project lifecycle, automate the Procure-to-Pay workflow with inventory updates, provide real-time cost control against the BOQ, and include dynamic, role-based approval chains for key documents. Relevant systems: We have direct experience building custom operational platforms. - Bison360: A full-scale custom ERP we developed for inventory, order fulfillment, and multi-system integrations. - Mr. Kliin: Another custom ERP built to manage core business operations. Implementation strategy: We would start with an MVP focused on the core Procurement and Project Costing modules. This establishes the critical financial and inventory logic first. We'll then build out tender management and reporting on top of that solid foundation. I have a few clarifying questions: 1. For approval workflows, does a PO's approval path change based on its value (e.g., >$10k requires a director)? 2. Regarding multi-company logic, is inventory and supplier data shared across companies, or is it completely siloed? 3. What is the single most critical report for cost control? A live P&L statement per project? Regards, Rohit
$750 USD in 60 days
8.0
8.0

Hello!, I am a US-based senior software engineer(frontend, backend, ecommerce, etc) with 15 years of experience building Laravel, PHP, MySQL, API-driven platforms, and business systems that need to be reliable, clean, and scalable. I read your Construction ERP description carefully, and the goal is clear: build a custom web-based ERP that supports real construction workflows, not a generic dashboard. That’s exactly the kind of project I like, because the details matter. Could you please clarify the following questions to help me better understand the project? 1. Which core modules are must-have in v1, such as projects, estimates, scheduling, invoices, purchase orders, inventory, timesheets, or job costing? 2. Do you already have wireframes, business rules, or an existing database/API to migrate from? 3. Should the system support multiple user roles and permissions, and any integrations like QuickBooks, email/SMS, or file storage? My approach would be practical: - first map the workflow and data structure - then build the core ERP modules in Laravel/MySQL - finally test permissions, reporting, and API connections before handoff I’ve built similar systems for operations-heavy teams, including a field service portal, an internal inventory tracker, a job costing dashboard, and a contractor scheduling app. I bring strong software architecture and project management experience, so I focus on delivering something solid and usable, not just writing code.
$1,200 USD in 6 days
7.2
7.2

Hi there, I understand you need a production-ready Construction ERP that connects project management, Tender/BOQ, procurement, RFQs, supplier quotations, POs, GRNs, inventory, project cost control, approvals, documents, dashboards and reporting into one scalable system, with multi-company, multi-branch and Arabic/English support. My approach is to build this as a modular Laravel + MySQL ERP, with REST APIs connecting the modules through a structured relational data model. I’ll establish Projects/BOQs as the operational foundation, then connect RFQ → Supplier Quote → PO → GRN → Inventory → Project Cost flows, with Laravel workflows handling approvals, role-based permissions and audit trails. React/Blade-based responsive interfaces will keep the system practical for office and site users, while reusable reporting components will power cost, procurement and management dashboards. Docker/Git-based deployment will keep the codebase maintainable and fully transferable. I’ve worked on business automation, financial workflows, inventory/data systems and reporting platforms where accuracy, permissions and connected processes are critical. I’ll also structure the database and APIs so future integrations can be added without rebuilding the core. For the procurement workflow, should supplier quotations be entered manually by your team, or do you expect suppliers to submit their quotations directly through the ERP? I’m ready to start immediately. Warm Regards, Aneesa.
$750 USD in 2 days
7.3
7.3

Your SOW's real risk sits in clause 31: committed vs actual cost without double-counting. Most builds get that wrong by relieving commitments at PO header level. It has to happen line by line as GRNs and invoices match, otherwise a partially received PO with a price variance inflates actuals and leaves phantom commitment on the budget. I'd build on Laravel + MySQL (PHP's been my backend stack for years, Aras most recently): each module its own domain, one configurable approval engine shared across transaction types, permissions enforced in backend policies rather than hidden buttons, and the Tender to Project to PR/RFQ/PO/GRN/Invoice chain carrying data forward so nothing gets re-entered. Arabic RTL from the first Blade layout, not retrofitted. One thing worth settling before signature, as your clause 133 asks: clause 59 leaves full double-entry accounting open. Want it confirmed as included, or operational finance first with the ledger as a follow-on module?
$1,000 USD in 7 days
7.0
7.0

I am Sunil, an accomplished Full-Stack Developer with a proven track record in designing and implementing customized ERP systems. My team and I specialize in PHP, Laravel, MySQL, and database development which aligns perfectly with your project's requirements. With a deep understanding of construction management and procurement, I have developed robust solutions for companies similar to yours – augmenting efficiency, streamlining processes, and optimizing costs. Beyond technical capabilities, I emphasize reliability and clear communication to ensure smooth project progression. By disbursing detailed milestones payments through Freelancer, we fostered trust and accountability with our previous clients. Moreover, our commitment to maintaining excellent reviews underscores our determination 能 to deliver nothing short of top-tier results.
$1,125 USD in 7 days
7.0
7.0

I understand the complete ERP scope and the need for tightly integrated modules covering projects, BOQ, procurement, inventory, cost control, approvals, and reporting. I have strong full-stack experience building scalable business systems with secure roles, workflows, Arabic/English support, and API-ready architecture. I’m ready to start immediately and deliver milestone-by-milestone with clean source code, deployment, documentation, and full ownership transfer.
$850 USD in 7 days
6.4
6.4

As a skilled Full-Stack Developer and the head of SoftwareLinkers, my team and I have extensive experience in delivering high-quality, bespoke digital systems to companies across various industries. This ranges from corporate platforms to logistics management. Our services precisely match the requirements you have outlined for your Construction ERP project. We employ technologies like PHP, MySQL, Laravel, and RESTful API development alongside a focus on ensuring security and scalability. Having crafted software for project management, inventory control, workflows and much more, we understand the critical pain points of construction contracting companies and are adept at developing solutions that tackle them head-on. Our approach goes beyond writing code to encompass understanding your business objectives and designing systems that are future-ready. We are committed to providing clean code with robust architecture that is production-ready.
$1,300 USD in 26 days
6.6
6.6

Hello, I can help structure and deliver the Construction ERP as a modular web platform with auditable workflows instead of a single high-risk release. My experience includes PHP, SQL, dashboards, role-based systems, APIs, workflow automation, reporting, hosting and production support. I would start by reviewing the detailed SOW and converting Project Management, BOQ, procurement, inventory, cost control, approvals and documents into prioritized bounded modules with shared master data. The architecture should define permissions, audit logs, Arabic/English behavior, API contracts, reporting and acceptance tests before implementation. I recommend an MVP and phased rollout with demonstrations using real scenarios. Please share the SOW, preferred stack, user count, accounting integrations, reporting examples, localization requirements and target milestone sequence.
$1,125 USD in 7 days
6.3
6.3

Greetings, Hello, Respected Sir. Building a custom web-based Construction ERP system is a complex task that requires careful integration of various modules to ensure smooth operations across project management, procurement, and inventory. The challenge lies in creating a scalable and secure system that can handle multiple users and branches while being user-friendly in both Arabic and English. How to achieve this: - Develop a modular architecture to ensure easy scalability and maintenance. - Implement robust APIs for seamless integration between modules. - Focus on responsive design to provide a smooth experience across devices. - Prioritize security measures to protect sensitive data. With skills in PHP, Laravel, MySQL, and full-stack development, I can deliver a reliable solution tailored to your needs. I've worked on similar projects, such as a project management tool for a contracting company, which enhanced their workflow and reporting capabilities.
$850 USD in 14 days
6.2
6.2

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