Brayan Stiven Valencia Villa

Brayan Stiven Valencia Villa

About

Detail

Systems & Computing Engineer | Applied AI & Data | Python for AI | RAG, LLMs & Prompt Eng | Azure Data & Analytics | Teaching & Communication | IBM AI Eng Spec
Armenia, Quindio, Colombia

Contact Brayan regarding: 
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Internships
Starting at USD1.5k/month

Timeline


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Education

Résumé


Jobs verified_user 0% verified
  • Revelo
    AI trainer public Remote experience
    Revelo
    Mar 2026 - Current (4 months)
    Leveraged prompt engineering to improve AI-driven Python code generation, completion, and debugging in an English-only working environment, refining outputs to eliminate errors and enhance functionality.
  • Alignerr
    AI trainer public Remote experience
    Alignerr
    Jan 2026 - Current (6 months)
    In an English-language working environment using Labelbox: -Refined YAML-based agent logic to align outputs with human intent better and conducted A/B/N testing to identify the best- and worst-performing agent responses. -Conducted A/B/N testing of LLM outputs using structured rubrics to assess response quality, compare performance across variations, and provide detailed feedback. -Applied structured evaluation rubrics to AI agents executing actions across multiple repositories, analyzing the performance and consistency of generated outputs, and providing feedback accordingly.
  • Revelo
    AI trainer public Remote experience
    Revelo
    Dec 2025 - Jan 2026 (2 months)
    Improved AI model performance through prompt engineering, data annotation, and A/B testing in an English-language working environment. My work included: -Enhancing LLM code generation using Python. -Providing Dockerfiles with developer-defined, step-by-step execution processes to support AI agents and ensure reproducible execution.
  • Unified Mentor Private Limited
    Machine Learning Intern public Remote experience
    Unified Mentor Private Limited
    Sep 2025 - Dec 2025 (4 months)
    Developed end-to-end machine learning workflows using the CRISP-DM methodology, encompassing data preprocessing, model training, hyperparameter optimization, and performance evaluation. Translated technical results into actionable business insights, delivering all research, documentation, and stakeholder presentations entirely in English. Tech Stack: Python, Scikit-learn, TensorFlow/Keras, RandomForest, XGBoost, Pandas, NumPy, Matplotlib, Seaborn.
  • Freelancer- Self employed
    Freelance programming teacher
    Freelancer- Self employed
    May 2025 - Feb 2026 (10 months)
    Taught logic programming to a beginner undergraduate student in Spanish, in person. -Simplified foundational concepts like conditionals, loops, and abstraction by connecting them to real-life scenarios and applying the Feynman technique, leading to a 100% increase in student engagement. -Supported students through hands-on programming exercises, debugging practice, and project preparation, resulting in a 50% improvement in code quality, confidence and problem-solving skills (as reflected in self-directed programming projects). -Evaluated progress through coding tasks, oral explanations, and live code reviews, and adapted teaching strategies to strengthen understanding, leading to a 100% increase in resit exam grades.
  • Freelancer- Self employed
    Freelance Math Teacher
    Freelancer- Self employed
    Oct 2021 - Current (4 years 9 months)
    - Delivered tailored Math tutoring for 100+ students in grades 3 –11 in Spanish, both in-person and online. -Simplified complex concepts in Arithmetic, Algebra, Geometry, Trigonometry, Statistics, Precalculus, Differential Calculus, Integral Calculus, and Linear Algebra, incorporating real-life examples to improve comprehension and student engagement. -Guided and evaluated students through challenging oral and written assignments and test preparations, tailoring innovative teaching strategies to boost understanding and engagement, ultimately doubling overall test scores and elevating confidence in their abilities. -Drove significant academic milestones for over 80% of students through a goal-oriented strategy and targeted problem-solving se
Education verified_user 0% verified
  • Universidad del Quindío
    Bachelor of Engineering - BE, Computer and Systems Engineering
    Universidad del Quindío
    Jan 2020 - Jul 2025 (5 years 7 months)