Cristian Valdivia
Software Engineer
Santiago
Summary
Data-driven professional with 10 Months of experience transforming complex datasets into actionable insights using Python, SQL, and BI tools. Proven ability to optimize processes, reduce costs, and support strategic decision-making in fast-paced environments. Skilled in cloud platforms (AWS), machine learning frameworks (Langchain, Hugging Face), and data visualization. Seeking to leverage technical expertise and analytical rigor to drive business growth in a challenging data role.
Overview
1
1
Year of professional experience
2
2
Certificates
2
2
Languages
Work History
AI Engineering Intern
Alloxentric
Santiago
07.2023 - 01.2024
- Spearheaded the design and development of an innovative document retrieval system leveraging neural database technology to enable semantic search capabilities across unstructured file content
- Implemented a comprehensive NLP pipeline using Langchain framework and Huggingface transformers to process, vectorize, and index diverse document formats (PDFs, Word documents, text files)
- Engineered containerized deployment architecture using Docker, ensuring consistent environments across development, testing, and production stages while reducing deployment time by approximately 40%
- Developed RESTful API endpoints to integrate the neural search functionality into existing web applications, enabling seamless user access to advanced query capabilities
- Optimized vector embeddings and retrieval algorithms to improve search accuracy and relevance, achieving significant improvements in result precision over traditional keyword-based approaches
- Collaborated with cross-functional teams including frontend developers and product managers to align technical implementation with user requirements and business objectives
- Conducted performance testing and optimization of the neural database, implementing caching strategies and query optimization techniques to enhance system responsiveness
- Documented technical specifications, implementation details, and usage guidelines to facilitate knowledge transfer and system maintenance
Junior Data Analyst
Entel Callcenter
Santiago
10.2024 - 02.2025
- Automated invoice processing by developing Python scripts, reducing manual effort by 40% and cutting processing time from 5 days to 36 hours.
- Optimized SQL queries to extract billing data from PostgreSQL databases, improving report generation speed by 30%.
- Designed Power BI dashboards to track revenue trends, enabling real-time monitoring and reducing reporting errors by 25%.
- Collaborated with finance teams to identify discrepancies in Q4 2024.
Skills
MS Excel
Documentation and reporting
Report preparation
Excel proficiency
Root-cause analysis
Data processing
SQL and databases
Python programming
R programming
Predictive modeling
NoSQL databases
Machine learning
Big data analytics
Data cleaning
Optimization techniques
Apache Spark
Web scraping
Hadoop ecosystem
Data integration
Deep learning
Data analysis
Data mining
Business intelligence
Languages
English
Advanced (C1)
Spanish
Bilingual or Proficient (C2)
Education
Bachelor of Science - Computer Science
03.2020 - 01.2024
Graduated at DUOC UC in the department of computer science and its specializations.
- Graduated with Honors (Top 10% of program cohort) for academic excellence and innovative research in artificial intelligence applications
- Specialized in Artificial Intelligence and Machine Learning with advanced coursework in neural networks, natural language processing, and deep learning architectures
- Dissertation: "Advances in Artificial Intelligence in Recent Years" - A comprehensive analysis of transformer models, large language applications, and their practical implementation in enterprise environments
- Key Coursework: Advanced Algorithms, Machine Learning, Data Structures, Software Engineering, Database Systems, Computer Networks, and Human-Computer Interaction
CITT Certification
- Completed specialized training in [presumably Computer Science or IT-related field] through DUOC UC's Center for Technological Innovation and Transfer
- Acquired practical skills in emerging technologies and industry best practices
Advanced AI Models Research Project
- Conducted in-depth research and implementation of cutting-edge language models including Llama 2+ and Mistral Chat architectures
- Developed practical applications leveraging these models for enterprise solutions, focusing on performance optimization and integration challenges
- Collaborated with industry professionals to evaluate model capabilities, limitations, and potential business applications
- Created documentation and presentations on comparative analysis of model performance across various NLP tasks
Certification
Working Proficiency Plus / Inglés Avanzado, ETS, 2023-2024
Additional Competencies
Technical Skills
- Programming Languages: Python (Advanced), SQL, JavaScript (Basic)
- Frameworks & Libraries: Langchain, Hugging Face Transformers, Pandas, NumPy, Streamlit
- Cloud & DevOps: Docker, AWS (S3, Lambda), Git, RESTful APIs
- Databases: Vector Databases (e.g., Pinecone, Chroma), PostgreSQL, MongoDB
- Web Integration: Flask/FastAPI, API development, AI-powered web applications
Software
Python
SQL
Docker
AIs
LLMs
BBDD
Interests
Advanced LLM Exploration: Actively experimenting with open-source models (Llama 3, Mistral, Mixtral) for enterprise applications, fine-tuning techniques, and prompt engineering optimization
AI Community Engagement: Contributor to open-source LLM projects; active participant in Hugging Face forums and LangChain development discussions
Vector Databases: Hands-on experimentation with Pinecone, ChromaDB, and Weaviate for semantic search and retrieval-augmented generation (RAG) systems
Quantitative Analysis: Applying statistical modeling and time-series forecasting to optimize AI system performance
Work Availability
monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
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Timeline
Junior Data Analyst - Entel Callcenter
10.2024 - 02.2025
Working Proficiency Plus / Inglés Avanzado, ETS, 2023-2024
12-2023
AI Engineering Intern - Alloxentric
07.2023 - 01.2024
Scrum Foundation Professional, CertiProf, 2022-2024
06-2023
DUOC UC - Bachelor of Science, Computer Science
03.2020 - 01.2024