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Necesito desarrollar un sistema de nómina capaz de manejar hasta 500 empleados de manera segura y confiable. El objetivo es centralizar todo el proceso de cálculo y generación de información salarial en una sola plataforma, reduciendo errores manuales y facilitando el cumplimiento legal. Funciones imprescindibles • Cálculo automático de salarios, incluidas horas extra y aguinaldos. • Gestión de deducciones e impuestos conforme a la normativa local. • Generación de recibos y reportes imprimibles en PDF. • Manejo de documentación de RRHH (contratos, licencias, cartas, etc.). • Soporte multimoneda para pagos en diferentes divisas. • Reportes mensuales y reportes personalizables (por centro de costo, tipo de puesto, periodo, etc.). Requisitos técnicos y de usabilidad – Interfaz web responsiva y clara, accesible desde desktop y móvil. – Base de datos estructurada que permita escalar sin pérdida de rendimiento. – Módulo de auditoría para rastrear cambios y accesos. – Exportaciones a Excel/CSV y compatibilidad con sistemas contables comunes. – Documentación del código y guía de uso para el equipo interno. Entregables esperados 1. Aplicación funcional instalada en mi servidor, lista para operar. 2. Código fuente bien organizado y comentado. 3. Manual del administrador y manual del usuario final. 4. Sesión de traspaso (online) para explicar la arquitectura y resolver preguntas. Valoraré experiencia previa en proyectos de payroll, dominio de frameworks web modernos y buenas prácticas de seguridad (encriptación, roles y permisos). Indícame tu stack propuesto, tiempo estimado y ejemplos de trabajos similares.
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87 freelancer chào giá trung bình $552 USD cho công việc này

⭐⭐⭐⭐⭐ Propongo desarrollar una aplicación de nómina web segura y escalable usando ASP.NET Core (C#), SQL Server y JavaScript/HTML con interfaz responsive. El sistema incluirá motor de cálculo automático de salarios (horas extra, aguinaldos), módulo configurable de deducciones e impuestos, generación de recibos y reportes PDF, gestión documental de RRHH y soporte multimoneda. Se integrará exportación a Excel/CSV y compatibilidad con sistemas contables. La base de datos será normalizada y optimizada para más de 500 empleados, con auditoría completa de accesos y cambios, cifrado de datos sensibles y control de roles. Pasos: análisis detallado de normativa y procesos, diseño de arquitectura y base de datos, desarrollo modular (cálculo, reportes, documentos, auditoría), pruebas con datos reales, optimización y despliegue en su servidor. CnELIndia aportará experiencia en desarrollo empresarial y seguridad, mientras Raman Ladhani coordinará arquitectura, calidad del código, documentación completa y la sesión de transferencia técnica. Tiempo estimado: 6–8 semanas.
$500 USD trong 7 ngày
8,8
8,8

Hola! Para 500 empleados, lo importante es que la nómina sea operable y auditada: cargar novedades, calcular, revisar, cerrar y emitir recibos/reportes sin errores manuales. Yo te lo implemento como un sistema web instalado en tu servidor, con motor de cálculo que cubre salario, horas extra y aguinaldo/regalía, más deducciones e impuestos conforme a RD, pero parametrizados para que puedas actualizar tablas/reglas cuando cambien (y validarlo con tu contador). DGII publica tablas y guías de retención/ISR, y el sistema queda preparado para importar/ajustar esas reglas sin reescribir todo. Incluye: gestión de empleados/contratos/licencias, corridas de nómina con “pre-cálculo” antes del cierre, recibos en PDF, exports Excel/CSV, multimoneda básica (con tipo de cambio configurable), documentación de RRHH y un módulo de auditoría (cambios y accesos). Te dejo documentación y una sesión de handoff para que el equipo lo mantenga. Esto cubre una V1 completa para operar nómina. Si luego querés integraciones contables específicas, reportes a medida o automatizar envíos a terceros, lo estimamos aparte con impacto claro. Nico – widuIT - Top Freelancer LATAM
$3.000 USD trong 45 ngày
8,4
8,4

Hi there, I will build your payroll system for 500 employees with automated salary calculations (overtime, aguinaldos), tax and deduction management per local regulations, PDF receipt generation, HR document handling, multi-currency support, and customizable reporting by cost center, position type, and period. For the tech stack, I will use Laravel for the backend with a MySQL database designed with proper indexing and partitioning to handle growth well beyond 500 employees. The frontend will be a responsive Vue.js dashboard. For security, I will implement AES-256 encryption on sensitive salary data at rest, role-based access control at the API level, and a full audit log tracking every change with user, timestamp, and previous values - which is critical for labor compliance audits. Questions: 1) Which country's tax and labor regulations should the system follow for deduction calculations and legal compliance? 2) Do you need integration with any specific banking platform for payment file generation, or will the system only produce reports? Looking forward to discussing further. Thanks and best regards, Kamran
$270 USD trong 10 ngày
8,2
8,2

Hello, With over a decade of experience developing bespoke technological solutions for diverse industries, ranging from fintech to beauty, my team at WellSpring Infotech is well-equipped to tackle your complex payroll project. We are conversant with the unique demands of managing salary systems, having implemented various B2B and B2C software products in this niche. Our proficiencies with React, Vue.js, Node.js and Python - among others - make us ideally positioned to create the responsive web-based interface you request while ensuring scalability and optimal app performance. Our dedication to quality work is reflected in our meticulous approach to comprehensive project management and quality assurance. We localize this commitment by producing clean code that is well-structured and adequately commented - our deliverables will include well-documented admin and user manuals together with a session where we will explain the architecture and answer any questions you may have. What's more, our proficiency with export functions in common file formats like Excel/CSV means you'll be able to seamlessly integrate our system into existing systems. With Regards!
$750 USD trong 7 ngày
7,8
7,8

Hola, he revisado tu necesidad de un Sistema Integral de Nómina 500 y el énfasis que haces en cálculo automatizado, cumplimiento legal y escalabilidad para 500 colaboradores. Ya he construido plataformas de nómina en ASP.NET Core donde integré cálculos complejos de deducciones y generadores PDF, y en otro proyecto migré un módulo de RRHH con auditoría completa sin afectar el rendimiento. El reto real aquí no es solo calcular salarios, sino asegurar consistencia entre impuestos locales, multimoneda y auditoría sin degradar tiempos de respuesta. También hay riesgos de duplicidad de datos si contratos, licencias y recibos no se manejan de forma transaccional. Propondré un stack con ASP.NET Core, SQL Server, Entity Framework y una interfaz en HTML/JS responsiva. Implementaré cálculos aislados por servicio, roles y permisos, exportación a Excel, módulo de auditoría y generación PDF. Entregaré código documentado y manuales conforme pides. Antes de avanzar, necesito confirmar entorno del servidor y requisitos de interoperabilidad contable. Puedo iniciar de inmediato y mantener el avance completamente trazable. Sincerely, John allen.
$500 USD trong 7 ngày
6,0
6,0

Hi, there, As a freelance engineer with extensive experience in web development and database management, I am excited to propose my services for the development of the Sistema Integral de Nómina 500. With proficiency in SQL, C#, JavaScript, HTML, and ASP.NET, I am well-equipped to handle the complexities of this project effectively. ✅ Leveraging my expertise, I will start by designing and implementing a responsive web interface accessible on both desktop and mobile devices, ensuring a user-friendly experience for up to 500 employees. ✅ To meet the crucial requirements of automatic salary calculation, tax management, and printable reports, I will develop robust functionalities that streamline payroll processes and enhance compliance. ✅ Implementing a structured database allowing for scalability without performance loss will be a key focus, complemented by audit trail features for accountability. ✅ Seamless integration with common accounting systems, customizable reporting, and multi-currency support will enhance the system's versatility and utility. ✅ Upon completion, I will deliver a fully functional application, well-documented source code, administrator, and end-user manuals, and conduct a detailed online training session to ensure smooth transition. I look forward to working with you. Best Regards. Brayan
$500 USD trong 5 ngày
5,9
5,9

Hello, Your goal of building a reliable payroll system capable of handling up to 500 employees with accurate calculations, compliance, and secure data management is a great project. I have experience developing structured business platforms and internal systems that manage financial data, reporting, and secure workflows. For this system, I would design a robust web application with a scalable database structure that supports salary calculations, overtime, bonuses, deductions, and tax rules while maintaining strong data integrity. The platform would include a clean responsive interface for HR teams, automated payroll processing, and secure document management for contracts, licenses, and employee records. The system would also generate printable PDF payslips and detailed reports, with flexible filters for department, cost center, role type, and payroll periods. Audit logging, role based permissions, and encrypted sensitive data would ensure transparency and security. I would also implement Excel and CSV export features so payroll and accounting teams can integrate the data with external accounting tools. The final delivery would include a fully deployed application on your server, well organized source code, technical documentation, and a walkthrough session so your team can confidently manage and maintain the system. I would be glad to help build a stable and scalable payroll platform tailored to your organization. Thank you, Justin
$500 USD trong 7 ngày
5,9
5,9

Hi, Puedo desarrollar un sistema de nómina web capaz de manejar hasta 500 empleados, con cálculo automático de salarios, horas extra, aguinaldos, deducciones e impuestos conforme a la normativa local. La plataforma incluirá generación de recibos PDF, gestión de documentación de RRHH, soporte multimoneda, reportes mensuales y personalizados, exportaciones Excel/CSV y auditoría de cambios y accesos. La interfaz será responsiva y segura, el código estará bien documentado, y se entregarán manuales de usuario y administrador junto con una sesión online de traspaso. Let’s discuss how I can help. Best Regards,
$500 USD trong 7 ngày
5,7
5,7

Sistema Integral de Nómina 500 I’m a full-stack software engineer with expertise in React, Node.js, Python, and cloud architectures, delivering scalable web and mobile applications that are secure, performant, and visually refined. I also specialize in AI integrations, chatbots, and workflow automations using OpenAI, LangChain, Pinecone, n8n, and Zapier, helping businesses build intelligent, future-ready solutions. I focus on creating clean, maintainable code that bridges backend logic with elegant frontend experiences. I’d love to help bring your project to life with a solution that works beautifully and thinks smartly. To review my samples and achievements, please visit:https://www.freelancer.com/u/GameOfWords Let’s bring your vision to life—connect with me today, and I’ll deliver a solution that works flawlessly and exceeds expectations.
$250 USD trong 4 ngày
5,7
5,7

Hi, I can develop a secure and scalable payroll system to handle up to 500 employees with automatic salary calculations, deductions, taxes, multi-currency payments, printable pay slips, and customizable reports. The system will be responsive, user-friendly, and include audit trails, secure access, and full documentation. I ensure clean code, smooth deployment on your server, and a complete handover session. I have experience building payroll systems for mid-sized companies, following best security practices and compliance standards. I can deliver this project in 6–7 weeks using modern web frameworks and scalable databases. Looking forward to building a reliable solution for you. Best regards,
$500 USD trong 7 ngày
5,3
5,3

Un gusto hablarte y conocerte , Mi nombre es Anthony Muñoz, expreso mi interés en trabajar en su proyecto después de leer cuidadosamente los requisitos y concluir que coinciden con mi área de conocimiento y habilidades. Actualmente soy el ingeniero líder de la agencia de TI DSPro y tengo más de 10 años de experiencia en el campo. He realizado con éxito un gran número de trabajos similares y considero tu proyecto un reto en el que me gustaría trabajar y poder hacerlo realidad. No dude en ponerse en contacto conmigo, será un placer ayudarle. Agradezco mucho el tiempo brindado y quedo atento a cualquier duda o inquietud. Saludos
$870 USD trong 7 ngày
5,8
5,8

Hola, Leí su descripción con atención. Un sistema de nómina para 500 empleados necesita precisión en cálculos, trazabilidad y cumplimiento legal. El riesgo suele estar en los cambios de normativa y auditoría. Si cada periodo de nómina no queda versionado y rastreable, cualquier ajuste posterior genera inconsistencias. Propongo ASP.NET Core con SQL Server o PostgreSQL, con roles y permisos, auditoría de accesos y generación de recibos PDF. También incluiría exportaciones Excel/CSV y reportes configurables. Mi responsabilidad es que cada cálculo salarial sea verificable y seguro. Si le parece bien, puedo compartir una arquitectura inicial y plan por módulos. Saludos, Ivan
$450 USD trong 21 ngày
5,3
5,3

Hi there, I will build your payroll system for 500 employees with automated salary calculations (overtime, aguinaldo, deductions, taxes), PDF receipt generation, HR document management, multi-currency support, and customizable reporting by cost center, position type, and period. For the tech stack, I recommend Laravel + Vue.js with MySQL - this gives you a responsive web interface, strong role-based access control, and a structured database that scales well. I will implement row-level audit logging on every payroll transaction so you have a full trail of who changed what and when, which is critical for compliance. For tax calculations, I will build a configurable rules engine so local tax formulas can be updated without touching core code. The system will include Excel/CSV exports compatible with common accounting platforms, encrypted sensitive data at rest, and role-based permissions for admin, HR, and read-only users. Questions: 1) Which country's tax and labor regulations should the system follow - is this for Mexico (ISR, IMSS, CFDI timbrado)? 2) Do you need integration with any specific banking system for direct deposit file generation? Looking forward to discussing further. Thanks and best regards, Faizan
$270 USD trong 10 ngày
5,3
5,3

hi, i have reviewed the details of your project. you want a reliable payroll system that can manage up to 500 employees, calculate salaries automatically, handle taxes and deductions, and generate reports and pdf pay stubs. i have worked on similar hr management systems where accuracy and secure data handling were the main focus. i will develop a web based payroll system using asp.net, c#, sql, javascript, and html. the system will include salary calculation with overtime and bonuses, multi currency support, hr document storage, and monthly reports. it will also include role based access, audit tracking, and export options for excel and csv so the data can connect with accounting tools. the system will be responsive, easy to use, and delivered with clean code, documentation, and a handover session. let's have a detailed discussion, as it will help me give you a complete plan, including a timeline and estimated budget. i will share my portfolio in the chat. mughira
$500 USD trong 7 ngày
5,1
5,1

Hola, soy Leo Sarmiento, Desarrollador Full-Stack con 10 años de experiencia, especializado en la creación de aplicaciones web de gestión empresarial y sistemas de nómina (payroll). He visto su necesidad de centralizar el proceso de nómina para 500 empleados con funciones como cálculo automático de horas extra, aguinaldos, gestión documental y soporte multimoneda. Tengo experiencia desarrollando plataformas robustas que garantizan la precisión de los cálculos, la seguridad de los datos sensibles y el cumplimiento legal mediante módulos de auditoría. Me gustaría discutir más sobre su proyecto y entender mejor sus necesidades.
$500 USD trong 7 ngày
5,1
5,1

Hola cómo estás, llevo años haciendo ERPs y todo tipo de sitios y aplicaciones. Puedo hacer el sistema responsive y con acceso basado en roles que necesitas . Te recomiendo que lo hagamos la interfaz con Vite + React y usar Laravel para el backend.
$500 USD trong 10 ngày
4,8
4,8

Hola buen dia. Te entrego en solo 2 semanas, tengo varios años de experiencia en el nicho y varios componentes web personales que nos ahorraran radicalmente el tiempo de entrega Tienes unos minutos para conversar ?
$1.500 USD trong 14 ngày
5,0
5,0

Streamlining your payroll process for up to 500 employees efficiently is crucial. With 5 years of experience in developing similar projects offsite, I can provide you with a secure, user-friendly, and scalable payroll system. By automating salary calculations, managing deductions, and ensuring legal compliance, I aim to reduce errors and enhance efficiency seamlessly. I propose a responsive web interface for easy access and a structured database for scalability and performance. Additionally, I will incorporate audit modules for tracking, Excel/CSV exports, and thorough documentation for seamless integration. Let's discuss how my expertise can benefit your organization's payroll needs with a future-proof solution. I look forward to providing you with valuable insights during our conversation. Chirag Pipal Regards
$550 USD trong 7 ngày
4,5
4,5

Hello, I’m excited about the opportunity to contribute to your project. With my expertise in ASP.NET, C#, JavaScript, SQL Server, and secure payroll system design, plus a strong focus on clean, scalable implementation, I can deliver a reliable nómina platform for up to 500 employees with automated calculations, compliance-ready deductions, and robust reporting. I’ll tailor the work to your exact requirements, implementing role-based access control, encryption for sensitive data, an audit trail for changes and logins, multi-currency support, PDF payslip/report generation, and exports to Excel/CSV with a database schema designed for performance and long-term maintainability. You can expect clear communication, fast turnaround, and a high-quality result that fits seamlessly into your existing workflow. Best regards, Juan
$500 USD trong 3 ngày
4,5
4,5

Hola, Puedo desarrollar un sistema de nómina seguro y escalable para gestionar hasta 500 empleados, centralizando el cálculo salarial, deducciones e impuestos en una plataforma web confiable y fácil de usar. Propongo construirlo con Laravel + MySQL para el backend y React o Vue para el frontend, lo que permitirá un sistema rápido, mantenible y preparado para crecer. El sistema incluirá cálculo automático de salarios, horas extra y bonificaciones, generación de recibos en PDF, gestión de documentos de RRHH, reportes avanzados, soporte multimoneda y exportación a Excel/CSV. También implementaré roles y permisos, registro de auditoría y buenas prácticas de seguridad para proteger los datos. La aplicación será totalmente responsiva, accesible desde móvil y escritorio, e incluirá documentación clara del código, manual de usuario, manual de administrador y una sesión de entrega para explicar el funcionamiento. Puedo compartir ejemplos de sistemas administrativos similares y un cronograma estimado una vez revisemos algunos detalles del flujo de nómina y las reglas fiscales que necesitas aplicar.
$500 USD trong 20 ngày
4,1
4,1

Santiago, Dominican Republic
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