Philimon Derib ☕
Hi 👋🏽
My name is Philimon Ayalew, and I am a Computer Science student at Constructor University. I am a highly motivated individual with a passion for researching and working with new, complex technologies. I constantly strive for continuous learning and career growth. As an experienced full-stack engineer, I have worked with numerous web technologies, and I am currently delving into the field of graphics programming, where I am exploring the wonders of computer graphics.
Experience

Software Test Engineering Intern - Mozilla

From Jan 2025 to Jan 2026, Remote

  • Built and maintained a test harness for Firefox’s Credential Management features, enabling coverage across 80+ sites and up to 10 regional variations each, reducing manual QA effort by 60%.
  • Developed a triage web app used by QA to review hundreds of test cases, retrieve relevant TestRail data, assign accurate automation suitability statuses, and automatically generate structured Bugzilla tickets cutting triage time by 90%+.
  • Led the refactor of major smoke suites and object models, writing and implementing the team’s refactor guidelines and improving stability, and readability of the codebase.
  • Automated TestRail reporting to Confluence with BigQuery & Looker, improving accuracy and reducing manual work by 70%.
  • Optimized CI testing pipelines for Firefox Beta builds, cutting execution time from 7+ hours to under 2 through algorithmic workload distribution.
  • Led bi‑weekly engineering learning sessions for the QA team, helping my teammates strengthen software engineering skills.

Working Student Software Developer - Everest Systems GmbH

From Feb 2023 to Nov 2024, Remote

  • Developed and optimized the platform's Authentication System, contributing over 50% of its functionality, enhancing security and user access by streamlining authentication.
  • Restructured the platform's page rendering by integrating a presentation layer, improving dynamic information fetching and rendering efficiency by 30%, enhancing user experience.
  • Collaborated with an external team to integrate a proprietary validation language and improved our evaluation system by adding an additional authentication enforcement through policy conditions.
  • Collaborated with an external team to integrate a proprietary validation language to our authentication system, allowing for verbose condition enforcement. This enhancement resulted in a 25% increase in condition usage across the system.
  • Boosted the authorization system's test coverage by 90% leading to improved system reliability.

Teaching Assistant for Intro to Python - Constructor University

From Sep 2024 to Jan 2025, Bremen, Germany

  • Served as a Teaching Assistant for the Intro to Python course, providing one on one tutoring, leading weekly tutorials, and assisting students with Python programming assignments.
  • Delivered personalized tutoring sessions to assist students with Python fundamentals, algorithms, and debugging.

Technical Lead - Google Developer Student Club/Constructor University

From Sep 2022 to Jun 2023, Bremen, Germany

  • Led student project preparation for Google Challenges, managing a team and developing a full-stack web application which qualified for the Hult Prize Global Semi-Finals in Tunis.
  • Organized tutorials to help students on campus get accustomed to google development technologies such as firebase and flutter.

Software Engineering Technical Mentor - The Room/ALX

From Aug 2022 to Feb 2023, Remote

  • Taught and mentored over 1000+ students from across Africa in software engineering, delivering lectures, leading hands- on workshops, and providing guidance on key topics.
  • Successfully certified over 250 students, increasing certification rates by 30% through personalized mentoring, rigorous assessments, and targeted feedback.
  • Developed a Slack bot to streamline certification handover, perform plagiarism checks, and answer general inquiries for over 1000+ students.

Education

Computer Science - Bachleors

2022 to 2026 at Constructor University, Bremen, Germany

Software Engineering BootCamp

2021 to 2022 at ALX Holberton, Remote

Certifications
2024 Google Solution Challenge Top 100 Finalist Google Developer Student Club Techincal Lead ALX/Holberton Certification Resume!
Programming Languages
  • C#
  • Java
  • Kotlin
  • TypeScript
  • C/C++
  • Python
  • Dart
  • SQL
  • Go
  • PHP
FrameWorks/Tools
  • .Net
  • Flutter
  • Postgresql
  • Github Actions
  • Selenium
  • Playwright
  • FireBase
  • Next.js
  • Laravel
  • Vue.js
  • Pytest
  • Google Cloud Platform
Languages
  • English(C2)
  • Amharic(C1)
  • German(A2)