Junior Software Developer Python & Game Mods

ETHAN GRAUPMANN

Junior Software Developer Python · Java · C++ · JavaScript

***********@*****.*** Aurora, CO 80015 (720) - 526 - 1242

https://www.linkedin.com/in/ethan-graupmann-3ba158222/ https://github.com/HowlOfTheVoid https://enderwolf513.itch.io/

PROFESSIONAL SUMMARY

Computer Science graduate with a software engineering internship at Amazon, hands-on experience reviewing and correcting Python, JavaScript, and PHP code for AI systems, and 7+ years leading teams of up to 10 in a high-volume public sector operation. Builds and ships personal projects in Python, C++ and JavaScript, including a mod for the video game Rain World. CompTIA A+ Certified. Seeking junior software/game development roles to apply strong creative thinking, debugging, QA and collaboration skills.

SOFTWARE EXPERIENCE

AI Code Evaluator (Contract) Data Annotation Tech. Remote Apr 2024 - Oct 2024

●Reviewed and corrected 100+ AI-Generated code and software responses in Python, JavaScript, PHP, HTML, and C++, catching logic errors, security issues, and style violations.

●Built Python data visualization models to validate model output correctness, using company-provided rubrics to score response quality.

●Evaluated model responses against safety and ethics criteria to ensure standards were met.

Software Development Intern Amazon Remote Jun 2021 - Sep 2021

●Developed quality control logs and tests to enhance an internal version control system, delivered within a 12-week internship using C++, HTML, JavaScript and SQL

●Built performance-impact visibility alerts that helped teams catch faulty or high-memory deployments earlier, reducing poorly performing releases significantly.

●Collaborated with a team of 8 other engineers in an Agile environment, presenting results to the team at the end of the internship.

PROJECTS

“The Arsenal” Slugcat Mod C# https://github.com/HowlOfTheVoid/Arsenal

●Built a mod for the video game “Rain World” that implements a new character and a new set of mechanics surrounding the Scavenger NPCs within the game, making it possible that a small group of the NPCs come to aid and defend the player.

●Downloaded and used by 1000+ players on Steam Workshop.

Thrash Test Unreal Engine https://enderwolf513.itch.io/thrash-test-final-project

●Designed and shipped a game in which the character can ragdoll and become a physics-based object in order to solve puzzles, delivering a series of 5 puzzle levels in 10 weeks.

Of Acid and Steel Ruby, RPGMaker https://enderwolf513.itch.io/of-acid-and-steel

●Designed an RPG with several self-coded segments and game quirks that has been downloaded by over 500 users.

Car Dealership Page HTML, JavaScript, Python https://github.com/HowlOfTheVoid/fullstack_dev_cap

●Designed, as part of a certification capstone project, a site that displays a list of cars by make and model from a database.

LEADERSHIP EXPERIENCE

Manager on Duty City of Aurora, Parks and Recreation Aurora, CO Jul 2025 - Present

●Leads and schedules facility operations and a team of 5-12 staff in absence of full-time management, serving 100+ patrons daily.

●Resolves escalations and coordinates cross-recreation-center departments to keep service uninterrupted for patrons.

Head Lifeguard City of Aurora, Parks and Recreation Aurora, CO Jun 2018 - Jul 2025

●Supervised teams of 4+ lifeguards across 8 recreation centers, maintaining as few as 2-3 incidents each season over 20+ seasons.

●Took ownership beyond the role by building cleaning schedules that cut coordination time for maintenance by 10%.

●Trained and onboarded 20+ new staff.

EDUCATION

Bachelor of Science in Computer Science University of Denver Sep 2018 - Jun 2022 GPA 3.72

●Relevant Coursework: Data Structures, Algorithms, Game Development, Software Engineering

CERTIFICATIONS

CompTIA A+ Feb 2023 - Feb 2029

●Developed IT technical skills and network management practices.

IBM Full-Stack Developer Jul 2025

●Learned a broad range of skills in backend and frontend development, use of Kubernetes, Node.js, and JavaScript among other coding languages.

TECHNICAL SKILLS

Programming Languages: Python, Java, C#, C++, JavaScript, HTML/CSS, PHP, R, SQL

Practices: Agile/Scrum, version control (Git), code review, QA and debugging, data analysis and visualization

Languages: English, Spanish, Japanese

Tools/Other: Eclipse IDE, Microsoft Visual Studio, GitHub, hardware troubleshooting and technical support

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