Sebastian Sovailescu

Full-Stack Engineer

Greater Chicago Area, IL (open to relocating)

Full Stack

New Grad

About Me

Based in Chicago, IL, I’m a full-stack software engineer who loves turning tough ideas into products people actually use — and notice only because they work.

I recently earned a B.S. in Computer Engineering from the University of Illinois at Urbana-Champaign (May 2025). Over the past two years I’ve shipped AI chatbots, full-stack dashboards, and iOS features during consecutive internships at AbbVie, boosting chatbot answer-rate accuracy to 95% and trimming report sizes by 25%.

Comfortable in Python, TypeScript, Swift, C++, and more, I move fluidly between backend logic and pixel-perfect front-ends, always chasing the cleanest path from problem to polished solution.

Professional Focus

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Building AI-powered applications with agentic frameworks and RAG systems

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Developing full-stack web applications that solve real-world problems

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Creating IoT solutions and hardware integrations for sustainable impact

Available for new projects

Experience

AbbVie

May 2023 - Present · 2 yrs 2 mos•

North Chicago, Illinois, United States

AI Engineer

January 2025 - Present

•Integrated an agentic framework (CrewAI) into a chatbot for senior executives, supporting both Retrieval Augmented Generation(RAG) and text-to-SQL queries on asset information

•Built a RAG ingestion pipeline for a chatbot, enabling efficient PDF processing and contextual responses

•Created testing and validation pipelines and ensured 95% accuracy in chatbot responses, directly improving customer satisfaction

Generative AI

FastAPI

Python

SQL

CrewAI

Full-Stack Developer Intern

Jan 2024 - Jan 2025 · 1 yr

•Built responsive web applications using React and Node.js, serving 500+ internal users across multiple departments

•Optimized SQL queries and eliminated redundant data, reducing Excel report sizes by 25% and improving overall download speeds

React

Node.js

JavaScript

REST APIs

SQL

iOS Developer Intern

May 2023 - Aug 2022 · 3 mos

•Designed and implemented iOS application features using Swift and fixed bugs

•Won 2nd place in company wide Hackathon with a PowerBI dashboard on adverse events in clinical trials

Swift

Core Data

Overall Technologies & Skills

Python

Nest.js

SQL

Firebase

REST APIs

AWS

JavaScript

TypeScript

Next.js

HTML/CSS

Tailwind CSS

Swift

C++

CrewAI

Git

Credentials

Education

Bachelor of Science in Computer Engineering

University of Illinois at Urbana-Champaign • 2021-2025 • 3.3/4

Relevant Coursework

Database Systems (SQL/neo4j)Wireless Sensing for IoT (C++/Python)ECE 391: Computer Systems Engineering (C)Data Structures & Advanced AlgorithmsProbability with Engineering ApplicationsAdvanced Digital Projects Laboratory