About Christian
Spanish
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English
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Experience
- Job&TalentSenior Software Engineer | GenAI & BackendDIGITAL AND ITAugust 2025 - April 2026 (8 months)Madrid, SpainTechnical leadership in the development of an AI recruiter (SaaS) designed to automate the recruitment lifecycle. My focus is on integrating Generative AI (Vertex AI/Gemini) to transform manual processes into intelligent automated workflows: from automated job description creation to candidate interviews and evaluations, processing thousands monthly.Key Responsibilities:
- Development of an Autonomous AI Recruiter: Comprehensive implementation of workflows based on Vertex AI (Gemini) for automatic generation of job descriptions, selection criteria, and personalized interview structures.
- AI Phone Interviews: Conducting phone interviews with candidates using an AI agent, based on the personalized requirements and criteria of each job opening.
- Resume Analysis and Evaluation: Creation of a CV evaluation system that analyzes candidate profiles against requirements, assigning a high-accuracy score through natural language processing.
- Interview Processing and Analysis: Development of logic for analyzing phone interviews conducted by the AI recruiter, automatically generating results reports, executive summaries, and extracting key moments for decision-making.
- LLM Observability and QA: Implementation of Langfuse for trace monitoring, evaluation of quality metrics, and mitigation of hallucinations in AI responses.
- Conversational Interfaces (AI Chat): Development of a chat system based on LangChain and Pinecone that allows end clients to query analytical information about their leads and job openings in natural language.
Main Stack: Kotlin, Spring Boot, Vertex AI (Gemini), Pinecone (Vector DB), LangChain, Langfuse, PostgreSQL, Kafka, AWS (EKS). - Job&TalentSenior Software Engineer | Architecture & Global ServicesDIGITAL AND ITApril 2024 - August 2025 (1 year and 4 months)Madrid, SpainTechnical leadership in transforming the platform into a highly scalable global microservices ecosystem. My main focus was the redesign and transition of single-country core services to a modern, unified global architecture, enabling the company's international expansion without technical friction.Key Responsibilities:
- Design and transition of the global architecture for migrating legacy single-country services to a global services infrastructure.
- Design and development of global core services for customer, vacancy, and lead management, including the orchestration of the complete recruitment flow, using Kotlin and Spring Boot.
- Implementation of Domain-Driven Design (DDD) and Hexagonal Architecture patterns to ensure long-term maintainable services and total decoupling of business logic.
- Management of asynchronous communication and data consistency between services using Kafka, optimizing performance in high-availability environments.
- Design and development of business observability and metrics using Micrometer and OpenTelemetry
Main Stack: Kotlin, Spring Boot, DDD, Hexagonal Architecture, PostgreSQL, Kafka, AWS (EKS). - Job&TalentSenior Backend EngineerDIGITAL AND ITJuly 2022 - April 2024 (1 year and 9 months)Madrid, SpainDesign and development of the employee document management system. The system is responsible for collecting and validating the necessary documents for each job position, as well as extracting the required data for the automation of forms and contracts.Key Responsibilities
- Evaluation of product requirements to determine operational feasibility.
- Technical breakdown of product requirements to create technical designs and detailed tasks.
- Design and development of complex microservices-based systems.
- Definition of metrics and monitoring.
- Testing (unit, integration, acceptance, and end-to-end).
Stack- Backend: TypeScript, Node.js, Express.js
- Messaging System: Kafka
- Database: PostgreSQL
- Infrastructure: Docker, EKS, RDS, Terraform
- Metrics and Monitoring: CloudWatch, Datadog, Rollbar
- CI/CD: GitHub Actions
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Education
- Universidad Autonoma de Madrid2014