Summary
Overview
Work History
Skills
Languages
Education
Certification
Additional Competencies
Software
Interests
Websites
Work Availability
Timeline

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

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Languages

English
Advanced (C1)
Spanish
Bilingual or Proficient (C2)

Education

Bachelor of Science - Computer Science

DUOC UC, Santiago, Chile
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

Websites

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

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Cristian ValdiviaSoftware Engineer