Emin Mastizada
Staff Software Engineer at Delivery Hero
Berlin, Germany
Summary
🤩
Rockstar🎓
Top SchoolEmin Mastizada is a Staff Software Engineer based in Berlin with 12+ years of hands‑on experience building backend systems in Python, specializing in FastAPI and async tooling. He combines product-focused development for small teams with platform-level work—automating support workflows and tooling for Delivery Hero while mentoring engineers on advanced Python patterns. A long-time Mozillian and active open-source contributor, Emin has improved localization and full‑stack features across high-profile Mozilla projects like Pontoon and Firefox Android, with a strong track record of making apps more international and robust. His background spans migrations to Python 3, API design, CI/CD and cloud moves across GCP and AWS, and integrations with payment and third‑party services. Pragmatic and curious, he started coding in 2005 and brings a mix of deep technical craft and a knack for maximizing impact in compact teams.
12 years of coding experience
12 years of employment as a software developer
High School Mathematics, High School Mathematics at School 48Bachelor's Degree Computer Engineering, Bachelor's Degree Computer Engineering at Istanbul Technical University
English, Russian, Azerbaijani, Turkish, German
Stackoverflow
1,395reputation
224kreached
55answers
35questions
Github Skills (37)
javascript10
translation10
python10
django10
internationalization10
lang10
localization10
manage10
firefox10
screen10
android10
translate10
translation-editor10
screen-shot10
jinja29
Programming languages (13)
Github contributions (5)
mozilla-services/screenshots
Apr 2017 - Feb 2019
Firefox Screenshots: the best way to take screenshots on the web.
Role in this project:
Localization / Internationalization Specialist
Localization / Internationalization SpecialistContributions:45 commits in 1 year 10 months
Contributions summary:Emin's commits primarily focus on updating and maintaining the Azerbaijani (az) localization for the Firefox Screenshots project. They've updated various strings within the `locales/az/server.ftl` file, adding new translations and correcting existing ones across multiple pages like the home page, shot page, and settings page. Their contributions span a wide range of UI elements, including button labels, descriptions, and informational messages, demonstrating a deep understanding of the project's localization requirements.
firefoxscreenshotwebextensionscreenshotsfirefox-webextension
common-voice/common-voice
Jun 2018 - Dec 2018
Common Voice is part of Mozilla's initiative to help teach machines how real people speak.
Role in this project:Localization / Internationalization Specialist
Localization / Internationalization SpecialistContributions:45 commits in 6 months
Contributions summary:Emin's commits primarily involve updating and translating the Azerbaijani (az) localization for the Common Voice project. They modified the `messages.ftl` file, adding and modifying various translations for UI elements, including strings related to the home page, profile, FAQ, and dashboard sections. Their work focused on ensuring the project's accessibility in the Azerbaijani language. The user also added and modified date/time formats in the project.
internet-freedommachinesinitiativeopen-datavoice
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