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Busco un perfil técnico senior especializado en inteligencia artificial y automatización para colaborar en proyectos reales con clientes empresariales en España. No busco a alguien que sepa hacer automatizaciones simples — busco a alguien que haya construido sistemas completos de principio a fin. Lo que tendrás que saber hacer sí o sí: Construir agentes de IA autónomos con múltiples subagentes que se coordinan entre sí, controlables desde WhatsApp o Telegram en lenguaje natural, incluyendo por mensaje de audio. No agentes de respuesta básica — agentes que toman decisiones, ejecutan acciones, modifican aplicaciones y gestionan flujos completos de empresa. Desarrollar dashboards y aplicaciones web a medida, con versión móvil y PC, que funcionen offline, integradas con Google Calendar, Google Drive y otros servicios. El cliente tiene que poder pedir cambios al agente y que el agente los ejecute directamente en la aplicación. Integraciones con software externo vía API y cuando no hay API disponible, mediante scraping estable y mantenible. Los softwares con los que trabajaremos incluyen plataformas sectoriales específicas — hay que saber evaluar qué es posible técnicamente antes de prometérselo al cliente. Agentes de voz con número de teléfono real, capaces de atender llamadas, entender al interlocutor, gestionar consultas y derivar según lógica de negocio. Con voz clonada si el cliente lo requiere. Sistemas de backup automático, documentación completa entregada al cliente y arquitectura que pueda ser retomada por cualquier técnico si fuera necesario. Esto no es opcional — es un requisito de todos los proyectos. El perfil que busco: Alguien que cuando le explico lo que quiere un cliente, me diga claramente qué es posible, qué no, y por qué — no alguien que diga que sí a todo y luego no lo entregue. La honestidad técnica es lo que más valoro. Con experiencia demostrable en proyectos reales de esta complejidad — no cursos, no proyectos personales pequeños. Quiero ver qué has construido. Que sepa trabajar de forma autónoma. Yo me encargo de la relación con el cliente, la gestión del proyecto y el marketing. Tú te encargas de la ejecución técnica. Necesito alguien en quien pueda confiar sin tener que supervisar cada paso. Disponibilidad real para arrancar en las próximas semanas con dedicación suficiente para sacar adelante proyectos de esta envergadura. Tecnologías habituales en estos proyectos: LLMs (Claude, GPT-4), LangChain o frameworks similares de agentes, Python, APIs REST, scraping (Playwright, Puppeteer o similar), bases de datos (PostgreSQL, Redis), Google Workspace, WhatsApp Business API, plataformas de voz (Vapi, Retell AI o similar), ElevenLabs o similar para voz clonada, despliegue en cloud o servidor propio. Si no conoces alguna de estas herramientas pero tienes experiencia equivalente con otras, explícamelo — lo que me importa es el resultado, no la herramienta concreta. Cómo aplicar: No me mandes una propuesta genérica. Cuéntame en dos o tres párrafos un proyecto similar que hayas construido — qué tenía, qué problemas técnicos encontraste y cómo los resolviste. Si no puedes hacer eso, no eres el perfil que busco.
Project ID: 40478195
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123 freelancers are bidding on average €2,296 EUR for this job

Hola, Entiendo que buscas un perfil senior para ejecutar sistemas reales de IA de principio a fin, no automatizaciones básicas. He trabajado en soluciones con agentes conectados a canales como WhatsApp/Telegram, APIs externas, bases de datos, dashboards web y procesos que toman decisiones según reglas de negocio. En un proyecto parecido, el mayor reto fue coordinar varios módulos sin que el agente hiciera acciones incorrectas; lo resolví separando permisos, logs, validaciones humanas para pasos críticos y pruebas por escenarios. También he trabajado con Python, PostgreSQL, Redis, REST APIs, scraping con navegador, Google Workspace y despliegues cloud, dejando documentación y backups para que otro técnico pueda continuar el sistema. Mi forma de trabajo es clara: primero reviso qué se puede hacer, qué depende de terceros y qué no conviene prometer; luego diseño la arquitectura, construyo por fases y entrego con pruebas, documentación y mantenimiento básico. ¿Tienes ya un primer proyecto concreto para empezar, con herramientas actuales, flujos de negocio y sistemas externos definidos? Gracias,
€3,000 EUR in 12 days
8.5
8.5

Hi — Elias here from Miami. I see you're looking for a senior developer with expertise in AI and automation to create autonomous agents, custom dashboards, and complex integrations. These projects often target efficiency and real-time data insights. What usually matters most here is ensuring scalability and reliability, particularly as the system grows. A common issue in projects like this is managing the complexity of integrations and state management, especially when multiple data sources are involved. The tricky part is usually maintaining performance while ensuring that the system can evolve with future requirements. My approach would focus on a modular architecture, using Python and PostgreSQL to build a robust backend. This would simplify maintenance and future enhancements. I’ve worked on similar platforms that required seamless API integrations and automation logic, which taught me the importance of a solid foundation. A few questions to better understand the scope: Q1 – What specific user roles and permissions will be needed for the dashboards? Q2 – Are there any particular data sources you'd like to integrate, or should I suggest options? Q3 – What are your expectations regarding scaling and future feature additions? Happy to go through the details and suggest the best technical approach. Looking forward to hearing from you.
€2,500 EUR in 10 days
8.0
8.0

As an AI and Cloud Developer, I have a great deal of experience in building complete systems from start to finish, which I believe makes me the perfect fit for your project. Not only am I well-versed in constructing autonomous AI agents who can make decisions, execute actions, modify applications, and effectively manage entire business flows as you mentioned, but I also possess a strong understanding of the complexities involved in integrating different software via API or scraping when necessary. These skills are crucial for successful implementation of your required dashboards, voice agents with real phone number integration capability, and complex system integrations. Moreover, my extensive background developing customized web applications, including mobile versions and offline functionalities linked with services like Google Calendar and Drive, aligns perfectly with your desired skill set. My focus is not only on providing users with a smooth experience but also ensuring that clients can make changes to the agent's operations directly within the app. This ability - allowing your clients to interact easily with your business processes - is essential and one that I can deliver confidently.
€3,000 EUR in 60 days
7.1
7.1

Hi I can collaborate as a senior AI automation engineer for real client projects, focused on complete systems rather than simple automations. My skills include GPT/Claude, LangChain-style agent workflows, Python, PostgreSQL, Redis, REST APIs, Playwright/Puppeteer scraping, WhatsApp/Telegram bots, Google Workspace, voice agents, and cloud deployment. The main technical challenge is building multi-agent systems that can understand natural language, make decisions, execute business actions, and remain maintainable for future technicians. I can solve this by designing modular agent architecture with clear tools, permissions, logs, backups, documentation, and fallback rules before anything is promised to a client. In similar enterprise automation architectures, I structure separate subagents for communication, data lookup, task execution, reporting, and human escalation. I can also build mobile/desktop dashboards, offline-capable workflows, Google Calendar/Drive integrations, API connections, stable scraping where APIs are unavailable, and phone-based voice agents using tools like Vapi, Retell AI, and ElevenLabs. My focus is honest technical execution: clearly explaining what is possible, what is risky, and how to deliver systems that clients can actually operate. Thanks, Hercules
€3,000 EUR in 15 days
7.1
7.1

Dear Client, I am highly interested in the Senior AI Developer position you described, as it perfectly matches my experience building complex, production-grade AI systems. Recently, I developed an autonomous multi-agent AI platform designed to manage and optimize enterprise workflows. This system employed a hierarchy of subagents coordinated through natural language interfaces, including Telegram integration with audio message support. Challenges included synchronizing asynchronous agent actions to maintain consistent state across tasks and ensuring secure API communication with multiple external services, which I resolved through robust event-driven architecture and reliable OAuth flows. Additionally, I built custom dashboards that operate both offline and online, integrating Google Workspace APIs and allowing users to request dynamic workflow modifications executed instantaneously by the AI agents. For APIs not available, I implemented stable scraping solutions with Playwright, ensuring maintainability and compliance. My work also includes voice-enabled agents with real phone numbers, capable of natural dialogue, call routing, and voice cloning via ElevenLabs technology. I am confident that my hands-on expertise with LangChain, GPT-4, Python, PostgreSQL, Redis, WhatsApp Business API, and cloud deployment aligns directly with your requirements. Best regards Lazar
€2,999 EUR in 7 days
6.6
6.6

Hello!! I have 12+ years of experience in AI agents, automation systems, and full-stack development. I specialize in building multi-agent architectures using Python, LLMs (GPT/Claude), LangChain-style frameworks, and API integrations. I have built autonomous systems with WhatsApp/Telegram control, dashboards (React/FastAPI), voice agents, and complex automation workflows integrating Google Workspace, scraping tools, and external APIs. I focus on real production systems with proper orchestration, Redis/PostgreSQL for state management, secure API execution, and clear separation between AI reasoning and real-world actions. I WILL DELIVER FULL AI AGENT SYSTEMS, DASHBOARDS, INTEGRATIONS, AND COMPLETE DOCUMENTATION READY FOR ENTERPRISE USE. I can start immediately. I eagerly await your positive response.
€1,500 EUR in 14 days
6.9
6.9

I would love if i get the chance to work on your project. This is exactly the type of work I enjoy because it requires building complete AI systems, not just connecting a few automation nodes. Recently, I worked on multi agent workflows using Python, LLMs, LangChain, APIs, PostgreSQL, Redis, WhatsApp integrations, web dashboards, and cloud deployment where agents could make decisions, trigger actions, update systems, and handle business processes end to end. One thing I always bring is technical honesty. If something is possible, I'll explain the best way to build it. If there are limitations, you'll know them before any commitment is made. I am interested in building a long term collaboration, not just completing a single task. Can we connect over a chat to discuss more about the project?
€3,000 EUR in 10 days
6.7
6.7

Hello!, I am a Florida-based senior software engineer with extensive experience in AI and automation. I carefully read your project description and I'm excited about the opportunity to collaborate on developing autonomous agents, custom dashboards, and complex integrations. With over 15 years in the field, I specialize in Python, PostgreSQL, and API development, ensuring that my solutions are not only technically sound but also practical and ROI-driven. My approach includes defining clear milestones and maintaining open communication to guarantee project success. Could you please clarify the following questions to help me better understand the project? 1. What specific functionalities do you envision for the autonomous agents? 2. Are there particular APIs or systems you want to integrate with? I have developed various projects that align with your needs, including an intelligent dashboard for a data analytics platform and a custom automation tool for an e-commerce site. I have also been part of the Shopify partners program since 2016, building apps and themes like those for Hotel Collection and USA Baseball Shop. I’m committed to delivering the perfect results and ensuring that your project stands out. Let’s connect and discuss how I can bring your vision to life! -James
€2,500 EUR in 10 days
6.4
6.4

Hi, What stands out in your post is the emphasis on technical honesty and complete systems rather than isolated automations. That is exactly how I approach AI projects. When evaluating a client request, my first step is determining what can be reliably automated, what requires human oversight, and where integrations, permissions, or platform limitations create constraints. This avoids the common problem of overpromising and underdelivering. I have worked on AI-driven business systems that combine LLMs, workflow orchestration, APIs, databases, dashboards, and external integrations into a single operational platform. A typical architecture includes specialized agents for intake, validation, execution, reporting, and escalation, coordinated through a central orchestration layer. One recurring challenge has been maintaining reliability when agents interact with third-party systems that change over time. I am comfortable working with Python, PostgreSQL, Redis, REST APIs, LangChain-style orchestration, WhatsApp integrations, cloud deployments, scraping when APIs are unavailable, and custom dashboards. Just as importantly, I am comfortable saying no when a requested workflow cannot be implemented reliably. My goal is to build systems that continue operating successfully in production, not simply impressive demos. Best, Justin
€2,250 EUR in 7 days
6.3
6.3

Hola, me interesa la propuesta porque es muy cercana al tipo de proyectos que vengo desarrollando. Soy Ingeniero en Sistemas y trabajo construyendo soluciones end-to-end: backend en Python/FastAPI, PostgreSQL/Supabase, APIs, automatización, scraping, IA y aplicaciones web completas. Algunos ejemplos reales: * Plataforma logística para una distribuidora: integración con Google Maps, geocodificación, OpenAI y automatización operativa para reemplazar procesos manuales y generar rutas automáticamente. * CRM inmobiliario en producción: captura automática de leads desde Gmail, integración con WhatsApp, Tokko y múltiples APIs, deduplicación y automatización de seguimiento. * Sistema ETL para fútbol: scraping sobre portal sin API, procesamiento de datos, PostgreSQL analítico, automatización completa y ejecución autónoma semanal. Trabajo habitualmente con GPT, Claude, APIs REST, PostgreSQL, Docker, Selenium/BeautifulSoup, Google Workspace, WhatsApp Cloud API y despliegues cloud. No he trabajado específicamente con todas las herramientas que mencionás (por ejemplo Vapi o Retell), pero sí con tecnologías equivalentes y me adapto rápido cuando los fundamentos son los mismos. Más que venderme, me gustaría entender qué proyectos tenés actualmente. Si hay alguno que necesites ejecutar en las próximas semanas, contame el caso y te puedo dar una devolución técnica concreta sobre cómo lo abordaría, qué riesgos veo y qué partes consideraría viables o no. Saludos.
€1,900 EUR in 21 days
6.1
6.1

Hola, tengo experiencia desarrollando soluciones de IA y automatización de extremo a extremo, incluyendo agentes con GPT/Claude, integraciones vía APIs y webhooks, sistemas de voz, WhatsApp Business, dashboards web, automatizaciones empresariales y arquitecturas escalables en Python. Me enfoco en evaluar la viabilidad técnica real de cada proyecto, diseñar soluciones mantenibles y entregar documentación completa para garantizar continuidad y escalabilidad. Best regards, Shakila Naz
€1,500 EUR in 7 days
5.5
5.5

Soy Juan Pablo. Lo que estás construyendo no es un simple “chat de IA”, sino un SaaS real de pago por consulta con modelos propios, billetera de créditos, ruteo de tareas y una interfaz de chat totalmente personalizable. He desarrollado plataformas multi‑modelo, sistemas de cobro por uso y pipelines de inferencia en GPU, así que puedo llevar esto de la idea a una arquitectura sólida y escalable. Mi enfoque es crear un dashboard limpio donde el usuario elige la tarea, ve el costo, sube texto/archivos y recibe la respuesta en un chat fluido. En el backend configuro la billetera, el cálculo de costos, la cola de tareas y el API gateway. Tus modelos fine‑tuned corren en vLLM/Triton con un router que envía cada solicitud al modelo correcto (legal, médico, ingeniería, etc.), manteniendo control total sobre costos y márgenes. El sistema es modular para agregar nuevos modelos, nuevas tareas o incluso modelos cargados por el usuario. También puedo ayudarte a estructurar el pipeline de indexación/vectorización para que tu equipo pueda entrenar y ajustar modelos de forma eficiente. Si quieres ver cómo diseño arquitecturas_AI_SaaS o cómo construyo sistemas_de_creditos puedo mostrarte ejemplos. Listo para crear un MVP robusto que demuestre el valor real de tu plataforma de modelos especializados.
€2,500 EUR in 7 days
5.1
5.1

I understand you need a Senior AI Developer to build sophisticated autonomous AI agents capable of coordinating multiple sub-agents and interacting via natural language, including voice commands, through WhatsApp or Telegram for enterprise clients. I have previously architected and deployed a multi-agent system that autonomously managed customer support workflows, reducing response times by 40%. My approach will involve developing the core agent logic using Python and LangChain, orchestrating sub-agents with tools like OpenAI's API for advanced reasoning. I will implement the WhatsApp/Telegram integration using Twilio or Telegram Bot API, ensuring seamless natural language processing of text and audio inputs, and building the decision-making frameworks for action execution. What specific authentication and authorization methods will the agents need to interact with client systems to execute actions? Ready to start as soon as you confirm scope.
€2,517 EUR in 21 days
5.2
5.2

With proven expertise in building complex web platforms, integrating with various APIs and constructing intelligent systems, I am confident that I can deliver the outcomes you desire. My approach aligns well with your need for transparency and technical honesty. Rather than making false promises, I assess the feasibility of every request diligently, offering viable solutions before committing to them. I have a solid track record of creating comprehensive tech platforms as demanded by clients, not just personal projects or theoretical coursework. To cite an example, I once developed a multi-tenant SaaS system requiring seamless integration with various third-party services. Overcoming the technical challenges of each integration demand demonstrated my problem-solving capabilities, which are fundamental to creating the intricate solutions you seek. Finally, my disciplined and autonomous work ethic backed by a strategic mindset fits perfectly well in your project dynamic. While you focus on relationship management and marketing efforts, you can rely on me to independently execute all technical aspects of the project proficiently. Choosing me as your senior AI developer will grant you steady progress throughout the venture while highlighting our joint commitment to quality craftsmanship and client satisfaction. All in all, let's make your vision a reality together!
€2,250 EUR in 7 days
5.3
5.3

Hello, I appreciate the opportunity to apply for this project focused on AI and automation. I understand that you are seeking a senior technical profile to develop sophisticated AI agents capable of executing complex tasks autonomously, integrating seamlessly with various platforms while ensuring robust functionality. With over five years of experience in building comprehensive AI systems, I have successfully developed multi-agent architectures that utilize natural language processing for platforms like WhatsApp and Telegram. My expertise includes creating custom dashboards and applications that integrate with Google services, allowing for user-driven modifications executed directly by the agents. I have also implemented stable scraping solutions and API integrations for various external software systems. To ensure the success of your project, I propose the following approach: - Conduct a thorough technical feasibility assessment of the client's requirements. - Develop a scalable architecture incorporating autonomous AI agents with voice capabilities. - Implement robust integration with Google Workspace and external APIs. - Provide comprehensive documentation and an automated backup system for maintainability. I am eager to bring my skills to your projects and ensure high-quality results. I am available to start in the coming weeks and would love to discuss your requirements further. Thank you for considering my proposal.
€1,500 EUR in 7 days
4.8
4.8

Muchas empresas piden “agentes autónomos” pero el verdadero reto no es el LLM: es garantizar que varios subagentes coordinados actúen de forma determinista sobre sistemas externos (apps, calendario, drives, CRMs) sin romper flujos ni seguridad. El mayor riesgo que veo es prometer integraciones completas sin validar capacidad de acceso (API vs. scraping) ni definir fallbacks humanos. Mi propuesta práctica: construir una orquestación modular: motor de decisiones + subagentes por canal (WhatsApp/Telegram/voz) que llamen a un gateway de acciones (API layer) con idempotencia, logging transaccional y human-in-loop. MVP centrado en casos de uso clave para validar permisos y flujo antes de ampliar autonomía. Stack recomendado: Python (FastAPI/Django), LangChain o similar para lógica de agentes, GPT‑4/Claude, PostgreSQL + Redis, Celery/Push queues, Playwright para scraping estable, WhatsApp Business API (o Twilio), Vapi/Retell + ElevenLabs para voz. Docker/K8s o VPS según SLA. Entrego infra como código, backups automáticos, tests y documentación para que cualquier técnico retome el proyecto. Trabajo autónomo, comunicación clara y honestidad técnica. Proyecto similar: desarrollé Velocity IQ, motor de prospección AI para telecom — ingestion de >1M registros en batches, scoring entrenado con CRM, recommendation engine, integración con fuentes externas y flujo de propuestas con auditoría. Problemas: escalado de ingestion y normalización; solución: pipeline ETL en AWS con caché Redis, esquemas normalizados y control de cambios. Resultado: latencia de batch <2 min y cumplimiento GDPR/SOC2 targets. Si te parece, preparo un roadmap MVP y estimación en 48h. ¿Cuáles son las tres plataformas sectoriales prioritarias y cuántas de ellas disponen de API frente a requerir scraping?
€2,250 EUR in 7 days
4.8
4.8

Hi there, Thank you for the detailed project description — it’s clear you’re looking for a genuine technical partner, not just a coder. We’re DemiVision LLC, a small team specializing in end-to-end AI automation and custom integrations for enterprise clients, and your requirements align very closely with our expertise. Recently, we developed an autonomous multi-agent system for a logistics company in Spain, where the agents coordinated via WhatsApp and voice calls to manage real-time fleet assignments, document handling, and customer notifications. The system featured subagents for scheduling, compliance checks, and incident management, all working under a central coordinator. Users could interact in natural language — both text and audio — and the agents would execute changes directly in the dashboard and connected apps (including Google Workspace and sector-specific platforms). When APIs weren’t available, we engineered stable Playwright-based scrapers, and every integration was carefully evaluated for technical feasibility before committing to the client. A major challenge was ensuring robust voice agent performance. We deployed cloned voices via ElevenLabs, integrated Vapi for real phone numbers, and handled asynchronous call routing and fallback logic. All systems were built with PostgreSQL and Redis, with automated backups, full handover documentation, and adherence to clean architectural principles so any future developer could take over smoothly. We’d approach your project with the same rigor: clear technical assessments, honest communication about what’s possible, and full autonomy in execution. We’re ready to dive in and deliver the level of reliability and innovation you expect. Looking forward to discussing your clients’ needs in detail.
€2,250 EUR in 20 days
4.6
4.6

Hi, I am a full-stack and AI developer with 8 years of rich experience in software development. I am familiar with Python, LangChain, LangGraph, PostgreSQL, Redis, REST APIs, AI Agents, RAG systems, WhatsApp Business API, Google Workspace integrations, voice AI platforms, cloud deployment, and custom web application development. For this project, the most important thing is to build reliable AI systems that can execute real business workflows, coordinate multiple tools and sub-agents, integrate with external platforms, and automate complex operational processes while remaining scalable, maintainable, and fully documented. I have worked on AI agent platforms connected to databases, CRMs, document systems, calendars, and business applications. In several projects, the main challenges involved multi-agent orchestration, long-term context management, tool reliability, and validation of critical actions. I addressed these challenges by implementing specialized agent architectures, workflow orchestration layers, queue-based processing, observability, and robust recovery mechanisms to ensure stable production performance. I'm an individual freelancer and can work on any time zone you want. Please contact me with the best time for you to have a quick chat. Looking forward to discussing more details. Thanks. Emile.
€1,500 EUR in 7 days
4.8
4.8

Hello, I understand that you are seeking a Senior AI Developer with expertise in artificial intelligence and automation for complex projects with corporate clients in Spain. I specialize in building autonomous AI agents with multi-subagents that can be controlled through WhatsApp or Telegram in natural language, including audio messages. Additionally, I excel in developing customized dashboards and web applications integrated with Google services, offline functionality, and the ability for clients to request and execute changes directly within the application. My experience includes creating voice agents capable of handling calls, understanding inquiries, and managing queries based on business logic. I prioritize technical honesty and have a proven track record in delivering projects of similar complexity. I work autonomously, ensuring the seamless execution of technical aspects while you focus on client relationships and project management. I am proficient in Python, REST APIs, PostgreSQL, Redis, and other technologies commonly used in such projects. I am committed to delivering high-quality results and am ready to commence work on your projects promptly. Best regards, Jayabrata Bhaduri
€2,500 EUR in 7 days
4.6
4.6

Hello, I’ve been working for several years in backend development, system administration, and AI-driven automation projects, combining Python development, API integrations, troubleshooting, and server-side architecture. I’ve also built systems involving automation workflows, data processing pipelines, and integrations between multiple services, and I enjoy turning complex technical requirements into working, stable solutions. In another similar system, I built a voice-enabled assistant connected to telephony services that could handle inbound requests, classify intent, and trigger automated backend actions. The hardest part there was reducing latency and improving reliability in real-time responses, which I addressed through optimized API routing and caching layers. I always focus on building systems that are not only functional but also maintainable and transferable to other engineers without dependency on me. I’ve reviewed your requirements, and this is exactly the kind of complex AI architecture work I specialize in. I would be happy to discuss details and clarify any technical assumptions before starting. Talk soon, Pavlo
€2,000 EUR in 15 days
4.7
4.7

Barcelona, Spain
Member since May 29, 2026
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