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I'm a Brown University computer science student with a passion for building scalable software and delightful user experiences. Through internships at Amazon, Tryp.com, GreenCarLane, and Logcast/Oshi, I've shipped automated testing frameworks, API integrations, and modern front-end features. I thrive in collaborative, Agile environments and enjoy turning ideas into robust systems that users love to interact with.…I'm a Brown University computer science student with a passion for building scalable software and delightful user experiences. Through internships at Amazon, Tryp.com, GreenCarLane, and Logcast/Oshi, I've shipped automated testing frameworks, API integrations, and modern front-end features. I thrive in collaborative, Agile environments and enjoy turning ideas into robust systems that users love to interact with.

Julia Zdzilowska

Full Stack Developer, Web Developer, Front-End Developer, +2

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I'm a Brown University computer science student with a passion for building scalable software and delightful user experiences. Through internships at Amazon, Tryp.com, GreenCarLane, and Logcast/Oshi, I've shipped automated testing frameworks, API integrations, and modern front-end features. I thrive in collaborative, Agile environments and enjoy turning ideas into robust systems that users love to interact with.…I'm a Brown University computer science student with a passion for building scalable software and delightful user experiences. Through internships at Amazon, Tryp.com, GreenCarLane, and Logcast/Oshi, I've shipped automated testing frameworks, API integrations, and modern front-end features. I thrive in collaborative, Agile environments and enjoy turning ideas into robust systems that users love to interact with.

Available to hire

I’m a Brown University computer science student with a passion for building scalable software and delightful user experiences. Through internships at Amazon, Tryp.com, GreenCarLane, and Logcast/Oshi, I’ve shipped automated testing frameworks, API integrations, and modern front-end features.

I thrive in collaborative, Agile environments and enjoy turning ideas into robust systems that users love to interact with.

Skills

Experience Level

Expert

Expert

Expert

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Expert

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Expert

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Expert

Intermediate

Language

English

Fluent

Polish

Fluent

Danish

Beginner

Work Experience

Software Development Engineer Intern at Amazon

August 1, 2025 - August 1, 2025

Developed an automated JUnit + Hydra integration testing framework validating CI/CD data pipelines (AWS) serving 80M+ weekly Amazon customers; increased test coverage from 0 to 90% and reduced manual inspection. Created an isolated test infra mirroring production (S3, DynamoDB, Glue) with Java utilities for schema inference, data generation, and Athena queries to enable scalable validation and cross-team adoption. Enforced IAM policies on ETL jobs and provisioned targeted datasets (TypeScript, Scala) to protect production workflows. Reduced testing time from 2 hours+ to 10 minutes and enabled real-time monitoring via a CloudWatch UI.

Software Engineering Intern at Tryp.com

December 1, 2024 - December 1, 2024

Managed 10+ external transportation APIs (Python), caching and updating directed transportation graphs storing 70M+ tickets. Integrated RegioJet by translating cURL requests into Python scripts, retrieving data efficiently without direct API calls. Standardized a JSON ingestion pipeline, aligning data from 1,000+ travel providers to Tryp schema for faster downstream processing. Populated PostgreSQL station connection schemas and optimized queries with adaptive psycopg2 indexing to reduce latency.

Frontend Development Intern at GreenCarLane

October 1, 2024 - October 1, 2024

Modernized customer-facing UI (React, TypeScript, Tailwind) by refactoring 10k+ LOC and integrating legacy Vue components. Improved responsiveness and accessibility with fluid grids, media queries, and SVGs; added interactivity via Hooks and AJAX. Implemented Redux and Context API for state management while optimizing CWV through lazy loading and code splitting. Collaborated with designers and SWE team in Agile sprints, translating Figma mockups into functional UI using Git.

Product Development Intern, Digital Marketing Intern at Logcast/Oshi

August 1, 2024 - August 1, 2024

Created wireframes and prototypes (Figma, ProtoPie) for creator payout and user subscriptions panels with blockchain integration. Led ambassador onboarding panels (5M+ likes on TikTok) and social media marketing campaigns, driving ~20% app usage increase.

Teaching Assistant for Computer Systems and Software Engineering at Brown University

January 1, 2024 - November 5, 2025

Hosted office hours for 300+ students in Intro to Systems (debugging memory allocation, caching, concurrency, and OS in C and C++) and Intro to Software Development (teaching APIs, cloud databases, state management, component architecture, and UX/UI in TS/JS). Guided student projects, including a personalized purchase platform and an interactive accessibility map.

Full Stack Developer at Freelance

August 1, 2024 - August 1, 2024

Built 20+ intuitive full-stack web apps with JavaScript/TypeScript, MERN, HTML/CSS/Tailwind, and RESTful APIs. Developed Dockerized Node.js microservices with OAuth2, deployed on Render (backend) and Vercel (frontend). Applied TDD with unit (JUnit, Pytest) and E2E (Playwright) tests to achieve ~90% code coverage. Managed Git workflows and dependencies with Yarn, focusing on UX/UI through iterative user testing.