Jairus Joer

Senior Developer & Designer

About

I am a Senior Full Stack Developer and Designer based in Germany. I take great delight in my specialized work surrounding user experience, design systems, and accessibility, always striving to create intuitive and inclusive digital experiences.

I have delivered measurable impact for tens of thousands of customers: cutting build times by 50%+, growing organic traffic by 120% YoY with a 33% conversion lift, and driving design system adoption across dozens of teams at various companies.

I am currently spearheading HERO Software’s platform modernization through monorepo orchestration and design system adoption. I am committed to design and engineering excellence, sharing these values with my colleagues.


Experience

  • Senior Full Stack Engineer at HERO Software
    Hanover, Germany · Hybrid
    Apr 2024 — Present

  • Freelance Developer and Designer
    Hanover, Germany · Remote, Part-time
    Nov 2020 — Present

  • Full Stack Developer at neuwaerts
    Hanover, Germany · Hybrid
    Jul 2019 — Mar 2024

  • Media Designer Apprentice at TA Bildungszentrum
    Hamelin, Germany · On-site
    Aug 2018 — May 2019

  • Co-Founder at XVI CHAPEL
    New York, United States · Remote
    Apr 2016 — May 2017

  • Marketing Manager at World Of Bass Records
    New York, United States · Remote, Part-time
    Oct 2015 — Aug 2016


Awards

  • BCM Content Platforms B2C Gold
    For zukunftswaende.de, at neuwaerts
    Jan 2022

Projects

  • Co-Author and Maintainer
    Aggregata
    Aug 2022 — Dec 2025

Speaking

  • Figma Workshop Series
    neuwaerts
    Nov 2023

  • Working with Projects and Files
    neuwaerts
    Sep 2023

  • Digital Tools for Clients
    neuwaerts
    Jul 2023

  • Generative Texts
    neuwaerts
    May 2023

  • New Work
    neuwaerts
    Nov 2019


Education

  • Media Design Apprenticeship
    Multi Media Berufsbildende Schulen Hannover (MMBbS)
    Aug 2018 — Jul 2021

  • Matura in Linguistics
    Kooperative Gesamtschule Gronau (Leine)
    Sep 2015 — Jun 2018