Jairus Joer Full Stack Developer & Design Systems Specialist, Germany, He/him
jairusjoer.com
I scale platforms, modernize architecture, and accelerate reliable delivery. I bridge the gap between frontend systems, performance, accessibility, and DX, as well as backend, data, and workflow orchestration for true end-to-end ownership.
Key outcomes : 50%+ build reductions, multi-year design system adoption, monorepo standardization, 95+ Lighthouse quality baselines, WCAG 2.1 accessibility, and high-performing technical content reaching 9,000+ monthly readers.
Focused on : architectural modernization, design token pipelines, performance & DX optimization, accessibility, workflow automation (Temporal), and scalable component ecosystems that compound engineering productivity.
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Core Technologies & Domains
Frontend & UI Architecture : TypeScript, Astro, Vue, React, Tailwind CSS, Design Tokens, Storybook, Accessibility (WCAG 2.1)
Backend & Platform : PHP 8.3, CakePHP, MySQL, GraphQL, Temporal (workflows), Docker, Monorepos (PNPM + Turborepo)
Tooling & Quality : Rspack, Webpack, ESLint, Prettier, Vitest/Jest, Playwright, Sentry, Style Dictionary, CI/CD optimization
Engineering Practices : Performance optimization, architectural RFCs, component governance, test strategy (95%+ coverage targets)
Product & Collaboration : Cross-functional leadership, UX collaboration, documentation systems, workshop facilitation
Work Experience 2024 — Now
Hanover, Germany CakePHP Codegen Design Systems Docker ESLint GraphQL Jest MySQL Nuxt PHP 8.3 PNPM Playwright Prettier Rspack Sentry Storybook Style Dictionary Tailwind CSS Temporal Turborepo TypeScript Vitest Vue.js WCAG 2.1
Modernized frontend platform via scalable architectural patterns and migration pathways for future applications
Cut incremental & full build times 50%+ via transition from Webpack to Rspack with targeted cache & bundle strategy
Unified repos into a governed monorepo (PNPM + Turborepo) enabling shared tooling, faster CI, and standardized workflows
Established design system foundation (tokens + Storybook + Style Dictionary) to drive UI consistency and reuse
Delivered enterprise component library accelerating feature delivery and reducing duplication across product surfaces
Architected Stock Management module end-to-end (requirements, UX flows, implementation, handover)
Automated Accounting workflows using Temporal + batch process orchestration to reduce manual handling risk
Embedded accessibility & testing rigor (WCAG 2.1 adherence, 95%+ coverage targets, linting & formatting baselines)
Championed engineering alignment through authored RFCs, standards documentation, and cross-team design reviews
Improved cross-functional velocity by creating shared collaboration patterns and visual language cohesion
2020 — Now
Freelance Developer & Designer
Built high-performance web solutions for SMEs achieving 95–100 Lighthouse performance & accessibility scores
Optimized UX & conversion flows translating business goals into measurable engagement improvements
Sustained repeat & referral pipeline via ongoing technical advisory, iterative enhancements, and reliability
2019 — 2024
Hanover, Germany Alpine.js Astro Cloudflare Docker Figma GitHub GitLab GSAP JavaScript MDX ProcessWire React Sass Swup Tailwind CSS TypeScript Vue.js WCAG 2.1 Webflow webpack Yii 2.0
Delivered award-winning “zukunftswaende” platform (BCM Gold) meeting WCAG 2.1 AA + 95+ Lighthouse benchmarks
Directed agency web presence (Webflow + Alpine.js + GSAP) establishing new interaction & visual standards
Increased organic traffic 120% YoY for a diving travel platform via performance, structured content, and SEO enhancements
Built internal documentation system (Astro + MDX) enabling reusable patterns and faster onboarding
Launched timed campaign site (“Zusammen wächst Zukunft”) with progressive interaction & scheduling logic
Developed regional transport info hub with dynamic content delivery and maintainable editorial workflows
Trained 50+ designers & developers through Figma workshops, establishing design system adoption practices
Maintained consistently high quality across multi-stack projects (performance, accessibility, maintainability)
2018 — 2019
Media Designer Apprentice at TA Bildungszentrum Hamelin, Germany 2016 — 2017
Co-Founder at XVI CHAPEL New York, United States — Remote
Co-founded digital creative agency delivering brand & digital identities for creative sector clients
Executed strategic exit post validation to pursue European engineering & product scale opportunities
2015 — 2016
Marketing Manager at Word Of Bass Records New York, United States — Part-time, Remote
Managed digital presence & campaigns crafting strategy across channels for independent label growth
Applied data-informed experimentation to improve engagement while building cross-disciplinary marketing skills
Awards 2022
Awarded for zukunftswaende in association with neuwaerts
Projects & Initiatives 2024 — Now
Personal project • Technical writing and project development Figma Ghost Tailwind CSS TypeScript Vue
Scaled audience to 9,000+ monthly readers via consistent publishing cadence & technical SEO strategies
Published 30+ in-depth articles on modern web architecture, accessibility, and emerging tooling ecosystems
Sustained 95+ Lighthouse performance & accessibility while shipping interactive learning assets
Built credibility & inbound opportunities through actionable, implementation-focused writing
Speaking & Workshops 2023
Figma Workshop Series at neuwaerts Designed and delivered comprehensive 4-part workshop series training 50+ developers and designers across multiple organizations
Introduction to Figma — Fundamentals and navigation for development teams new to design tools
Design Systems & Tokens — Implementation strategies for consistent visual languages across projects
Figma for Project Management — Client collaboration workflows and organization for team efficiency
Advanced Component Architecture — Complex patterns and reusable assets for scalable design systems
2023
"Digital Tools for Clients" at neuwaerts Seminar on AI-enabled collaborative workflows
Presented comprehensive analysis of collaborative successes and AI methodologies to key account managers
Demonstrated practical applications of generative AI tools in client workflows and project optimization
Facilitated strategic discussions on integrating digital tools while maintaining quality and satisfaction
2023
"Working with Projects & Files" Client Workshop Multi-part organizational training for an enterprise client
Delivered multi-session workshop for enterprise client on organizational-level Figma implementation
Established standardized workflows for file organization, project structure, and team collaboration
Provided ongoing consultation on best practices adoption and change management for design tool integration
2023
"Generative Texts" Workshop at neuwaerts Technical overview of emerging AI text generation
Introduced generative text models and practical applications in marketing and content creation workflows
Demonstrated integration strategies for AI tools in existing project pipelines and client deliverables
Addressed implementation considerations including quality control, ethics, and workflow optimization
2019
"New Work" Seminar at neuwaerts Cloud collaboration tools and GDPR compliance
Provided comprehensive overview of cloud collaboration tools and their GDPR compliance requirements
Drafted organizational guidelines for secure tool adoption and data handling in client project channels
Empowered team adoption of new workflows while maintaining security standards and regulatory compliance
Education 2018 — 2021
Media Design Apprenticeship at Multi Media Berufsbildende Schulen Hannover (MMBbS) Hanover, Germany
Received laudatory recognition for achieving 95 out of 100 points and exceptional performance across the curriculum
2015 — 2018
Matura in Linguistics at Kooperative Gesamtschule Gronau (Leine) Gronau (Leine), Germany