At Foundever, we are revolutionizing customer experience (CX) with cutting‑edge digital solutions. As we grow, we are building a pioneering Digital Services organization, and we’re looking for exceptional talent to join our Delivery Conversational AI team.

The Conversational AI Engineer is responsible for developing and deploying Conversational AI solutions (chatbots and voicebots), using LLMs, Agentic AI, NLU, and RAG technologies. This role executes technical implementations and integrations across environments while translating business and conversational requirements into scalable, secure, and maintainable technical solutions. It is responsible for defining the technical architecture, integration strategy, APIs, authentication, data flows, AI orchestration, and deployment approach, ensuring compliance with enterprise standards and best practices.

The role leads technical discovery and feasibility assessments, implementing and integrating Conversational AI platforms with enterprise systems, CRMs, knowledge bases, telephony, backend services, and third‑party applications. It combines expertise in solution architecture, prompt engineering, knowledge base structuring, AI orchestration, and system integration to enable end‑to‑end automation and continuous improvement. The Conversational AI Engineer also ensures safe and reliable AI model behavior through guardrails, testing, proactive monitoring, troubleshooting, fine‑tuning and optimization of prompts, retrieval strategies, and AI model configurations.

Additionally, the role oversees STT/TTS configuration and maintenance, voice infrastructure, telephony integration, observability, and performance optimization to guarantee high‑quality voice experiences and seamless system integration.

Job Responsibilities

Implement, deploy, and maintain Voicebot and Chatbot solutions across development, technical testing/UAT, and production environments





Perform technical discovery and feasibility assessments by evaluating integrations, APIs, data sources, platform capabilities, architecture constraints, technical dependencies, and implementation requirements

Define and maintain the technical solution architecture, including integration architecture, APIs, authentication, data flows, AI orchestration, and deployment approaches, ensuring scalability, security, maintainability, and alignment with enterprise standards

Implement and manage system integrations to enable seamless automation across enterprise platforms, applications, and backend systems

Ensure safe and reliable AI model by implementing safeguards and governance measures

Engineer and refine prompts to guide LLM behavior and ensure precise, context‑aware, and business‑aligned responses

Structure and optimize knowledge bases to ensure accurate and context‑aware responses

Select, configure, integrate, and optimize the most suitable STT and TTS technologies for each use case and language, considering accuracy, latency, voice quality, cost, and platform compatibility to ensure reliable voice performance

Implement and support telephony integrations for voicebot solutions

Apply technical best practices and recommendations for LLMs, Agentic AI, and hybrid AI solutions (NLU + LLM)

Implement new integrations and backend components required to support Conversational AI solutions

Document solution architectures, technical specifications, configurations, integrations,



and deployment processes to ensure maintainability and knowledge sharing; Detect and mitigate technical risks and issues

Identify and mitigate technical risks, issues, and dependencies throughout the project lifecycle

Define technical standards, implementation guidelines, and reusable architecture patterns to ensure consistency, scalability, and maintainability across Conversational AI solutions

Collaborate with Conversational Designers, Delivery Managers, Data Analysts, business stakeholders, and cross‑functional teams to deliver scalable and business‑aligned Conversational AI solutions

Skills And Qualifications

Knowledge of Conversational AI, including RAG, LLMs and NLU

Degree or background in engineering or development

Experience working with Conversational AI platforms and deploying AI bots

Experience with speech technologies, including STT (speech‑to‑text) and TTS (text‑to‑speech)

Experience in deployment and integration, including APIs and system integrations

Experience with prompt engineering

Ability to clearly document architectures, configurations, and deployment procedures

Fluent in written and spoken English

This role will work with the following languages and technical aspects in Conversational AI projects:

JSON or YAML Used to configure nodes, inputs, outputs, and API payloads

SQL / NoSQL queries For accessing databases when the bot needs external information

API Integration: RESTful APIs, Webhooks, OAuth authentication

About Us Foundever is a integral leader in the customer experience (CX) industry. With 150,000 associates across the globe, we’re the team behind the best experiences for +750 of the world’s leading and digital‑first brands. Our innovative CX solutions, technology and expertise are designed to support operational needs for our clients and deliver a seamless experience to customers in the moments that matter.

📌 Conversational AI Engineer (Madrid)
🏢 Foundever
📍 Madrid