STEFAN BINDER
Senior Software Engineer
Highly versatile Senior Software Engineer focused on defining future-proof systems, with a heavy focus on Developer Experience (DX) and internal tooling. I drive high-performing teams by balancing deep technical ownership with establishing best practices, "documentation as code" guidelines, and modular code structure. A curious all-rounder committed to continuous learning and platform excellence.
Work Experience
AI Engineer
11/2025 – Today@MyIndependent.ai (Open Source)
- Local-First RAG: Built a private AI ecosystem using Docker, Qdrant (Vector DB), and Neo4j (GraphRAG) to process personal data without public internet exposure.
- Agentic Workflows: Implemented query transformation and multi-search retrieval using Llama for local routing and Gemini 1.5 Pro for complex reasoning.
- Advanced Retrieval: Developed a hybrid search system combining BM25 and Vector embeddings with cross-encoder reranking to optimize context precision.
- Infrastructure: Automated ingestion pipelines for 10+ data importers with PII redaction protocols.
Chapter Lead & Senior Software Engineer
12/2021 – Today@XXXLDigital
- Defined the strategic direction for the platform architecture, managing scalable build ecosystems using NX mono repository principles, and leading the implementation of Server-Side Rendering (SSR) to optimize content delivery.
- Drove platform reliability and efficiency by managing DevOps tasks, including Kubernetes, ArgoCD, Argo Workflows, Istio, Cloudflare configuration, and leveraging Dynatrace for observability.
- Founded the Kosmos Design System team, establishing comprehensive technical documentation to drive developer adoption while defining requirements and the technical direction for the framework-agnostic component library.
- Mentored developers and fostered continuous improvement by conducting regular 1:1s and identifying growth opportunities within the team.
Senior Software Engineer
10/2019 – 11/2021@XXXLDigital
- Led key e-commerce feature implementations as the Technical Project Lead for the Timendo consultancy reservation tool, the Transporter reservation tool, and the new Order Status implementation.
- Partnered with Product Owners and stakeholders to engineer technical requirements and collaboratively plan project roadmaps.
- Enhanced the e-commerce setup through customization and development across the Frontend, BFF, and Hydra Design System.
Owner & Full Stack Engineer
07/2015 – 09/2019@SpirIT e.U.
- Managed all facets of business operations, including customer acquisition, tax & accounting, and financial management.
- Delivered full-lifecycle project execution, transitioning projects from requirement analysis over agile programming to maintenance.
- Architected and Developed the Wooter e-commerce platform (React Frontend) for ordering sport apparel and managing sports leagues (schedule, statistics, team/player).
- Launched and maintained the project myStudentjob, a student job platform implemented with AngularJS and Laravel.
Web Developer
09/2012 – 05/2015@Gentics Software GmbH
- Directed Intranet development projects, serving as the Project Manager for Erste Bank's implementation.
- Customized and Enhanced Gentics products, including ECMS Content.Node, Java Web Portal.Node, and the JS wysiwyg Editor Aloha.
- Developed a robust Content-Importer into ECMS via NodeJS, demonstrating deep experience in data ingestion pipelines and content management workflows.
Web Developer & "Designer"
01/2012 – 12/2013@HC-Media
- Executed small to medium-sized web projects utilizing various CMS platforms (Wordpress, Joomla, Typo3) and WooCommerce.
Personal Projects
Tatiland
www.tatiland.storeAn e-commerce platform for selling bilingual children's books, featuring a web storefront (Next.js) and a React Native mobile app. Books are generated from a single story source in multiple language combinations (EN/ES/DE) and come with QR code-based audio read-aloud functionality. Built with Shopify for commerce, Firebase for auth & push notifications, and Cloudflare for CDN.
Typingcompetition
A real-time online typing competition platform built as a full NX mono repo with micro-services communicating via gRPC. Features include live typing races, user profiles with analytics, a heatmap visualizer for keystrokes, a chat module, and detailed typing statistics. The BFF layer connects a React frontend to multiple backend services backed by MongoDB and Docker.
Baby Tracker
A Progressive Web App (PWA) for tracking baby sleep and daily care events, designed for multi-user sharing between parents and caregivers. Features include night sleep & nap tracking with awakening logs, a live dashboard with daily/weekly insights, care event logging (diapering, breastfeeding, bottle feeds, solids), role-based membership sharing per baby profile, and Playwright-covered E2E tests.
Education
Bachelor Of Science in Engineering (BSc)
Höhere Lehranstalt für Berufstätige
Fachschule für EDV
Skills
Software Architecture
Frontend Development
Backend & Data
Platform & DevOps
CMS & Tooling
Design Systems
Languages
Voluntary Service
- •Freiwillige Feuerwehr (Fire Brigade)
- •TedX León Volunteer 2018/2019
- •Toastmaster Member 2021