About Me

Full-stack software engineer with 5+ years of experience building AI-integrated web applications and evaluating large language models for accuracy and code quality. Combines hands-on full-stack development (React, TypeScript, Node.js, Python) with direct experience training and assessing AI systems (RLHF evaluation, computer vision, generative AI integration). B.S. in Applied Mathematics from Washington State University.

Basic Information
Age:
28
Email:
Fernandezeddie54@gmail.com
Phone:
+1 253-507-3193
Address:
Language:
English, Spanish
Professional Skills
Python
95%
JavaScript
90%
C++
85%
React / TypeScript
85%
C#
80%
Node.js / Express
80%
PyTorch / Keras
75%
AWS / Docker
75%
Java
70%
HTML / CSS / Tailwind
70%
MongoDB / SQL
70%
Ruby
65%
Work Experience

Jan 2026 - Present

Tundra Solutions (Meta)
Data Labeling Analyst III - AI Model Evaluation

Perform RLHF evaluations and high-quality annotations on 100+ model responses weekly to train and refine LLMs on software development and code-generation tasks. Score model responses against detailed engineering rubrics across Python, C++, C#, JavaScript, HTML, and CSS, ensuring accuracy, clarity, and adherence to best practices. Review peer annotations and provide structured feedback to maintain consistency and quality standards across the labeling team. Evaluate model behavior on real GitHub pull requests spanning multi-file context, debugging, and feature development.

Apr 2025 - Nov 2025

Interco
Software Engineer

Simulated autonomous space-robotic behaviors for NASA's Astrobee platform using Gazebo, RViz, Ubuntu 20.04, and Docker. Led and mentored a 3-person intern team to build a CNN-based computer vision model (Python, NumPy, Keras, PyTorch) for identifying aircraft, vessels, and ASAT weapons in satellite imagery. Built reusable React UI components (forms, cards, modals) that sped up development cycles and standardized design across the platform. Delivered dynamic, data-driven pages for character descriptions and script-generation workflows, streamlining filmmaker production workflows. Integrated frontend features with REST APIs using Node.js, TypeScript, and Postman in close collaboration with UI/UX and backend teams.

Oct 2023 - Jan 2025

Data Annotation Tech
Software Engineer - AI Model Training

Completed 5,000+ high-quality annotation tasks training LLMs on software development and code generation across Python, JavaScript, C++, C#, and Ruby. Unit tested AI-generated code for correctness and adherence to coding standards and best practices. Delivered detailed technical feedback on AI-generated code responses, contributing to measurable improvements in model accuracy across multiple languages. Managed concurrent annotation projects across five programming languages while maintaining quality and turnaround targets.

May 2022 - Sep 2023

Interco
Software Engineer

Built Unreal Engine and Unity plugins integrating OpenAI GPT-4 and Stable Diffusion using C++, Python, and C#. Integrated AWS Cognito, S3, EC2, and Lambda for authentication, storage, and compute; rendered graphics with OpenGL. Built a financial analysis web platform in React.js, translating Figma designs into responsive, interactive UI. Automated cryptocurrency trading via Coinbase, Alpaca, and Binance REST APIs. Developed interactive AR/mobile web experiences with Three.js and WebXR for 3D model visualization. Promoted to full-time Software Engineer based on performance.

Apr 2021 - Apr 2022

Lowkel
Software Engineer (started as Intern)

Improved site search accuracy by 50% by implementing multi-word query processing, fuzzy matching, and Levenshtein-based typo correction. Reduced search result processing time from 10 seconds to 1 second through algorithmic and query optimization. Built JavaScript/MongoDB tooling for large-scale product data correction and route optimization software in Python for delivery efficiency. Promoted to full-time Software Engineer based on performance.

Education

Aug 2016 - May 2020

Bachelor's Degree
Applied Mathematics

Washington State University

Majored in Applied Mathematics with Economics Minor. Graduated with a 3.2 cumulative grade point average. Scholarship chair and member of ACACIA Fraternity. Completed Courses such as Calculus, Differential Equations, Mathematical Optimization, Real Analysis, Mathematical Computing, Data Structures C/C++, Program and Design C/C++, Statistics, Linear Algebra, and Econometrics

Contact Me
Feel free to contact me

Address

Phone

+1 253-507-3193

Email

fernandezeddie54@gmail.com