# Felix Schröter (@felschr.com)

Profile: https://sifa.id/p/felschr.com
Headline: Freelance Software Engineer | ☁️ Architect | DevOps | Rust 🦀 | Nix ❄ | 11+ YOE | Technical Lead on Entrepreneurial & Intrapreneurial Ventures 🚀
Website: https://www.linkedin.com/in/schroeter

## About

Experienced founding engineer 🚀 — I build Cloud-native systems following DevOps practices for fast & high quality delivery of scalable solutions for early-stage startups & intrapreneurial ventures. I prefer working with Rust and reproducible development environments & builds powered by Nix and I'm an active contributor to Nixpkgs. Curious about moving into research.

## Experience

- **Software Engineer at Digital Spring** (2016 – 2019)
  Full-Stack Development, Infrastructure & DevOps for Cloud-native solutions
- **Trainee at Werum IT Solutions** (2012 – 2015)
  Process automation (DCS/PCS) interface development with .NET
- **Freelance Software Engineer at atvari** (2026 – present)
  Coming soon. Company yet to be founded.
- **Senior Software Engineer at CmdScale GmbH** (2025 – 2026)
  Supported a client as an interim Infrastructure & DevOps Lead Engineer. Worked as a Platform Engineer for a client in the information security sector.
- **Lead DevOps Engineer at secunet Security Networks AG** (2025 – 2026)
  Supported CmdScale client as an interim Infrastructure & DevOps Lead Engineer.
- **Tech Lead at upsquared GmbH** (2024 – 2025)
  Technical Lead for Cloud-native Development, Infrastructure & DevOps solutions
- **Senior Software Engineer at upsquared GmbH** (2019 – 2025)
  Full-Stack Architecture, Development, Infrastructure & DevOps for Cloud-native solutions
- **Software Engineer at Werum IT Solutions** (2015 – 2016)
  DCS/PCS and ERP interface development with .NET and PL/SQL
- **Senior Software Engineer at Digital Spring** (2019 – 2019)
  Full-Stack Architecture, Development, Infrastructure & DevOps for Cloud-native solutions

## Education

- **University of Colorado Boulder** — Master of Science - MS, Computer Science (2024 – 2026)
- **Berufsbildende Schulen Lüneburg** — Computer Science Expert, Software Development (2012 – 2015)

## Skills

- Software Architecture
- Software Engineering
- Full-Stack Development
- Technical Leadership
- Cloud-Native Architecture
- Distributed Systems
- Cloud Infrastructure
- Cloud Computing
- Scalability
- DevOps
- DevSecOps
- Infrastructure as code (IaC)
- Reproducibility
- Observability
- Web Development
- Open Source Development
- Agile Methodologies
- Computer Science
- Declarative Programming
- Nix
- NixOS
- nixpkgs
- Rust (Programming Language)
- TypeScript
- OpenTofu
- Kubernetes
- Containerization
- Podman
- Docker
- Microservices
- gRPC
- GraphQL
- REST
- Firebase
- Google Cloud Platform (GCP)
- Amazon Web Services (AWS)
- Microsoft Azure
- OpenStack
- Grafana
- DevEx
- Platform Engineering
- Internal Developer Platform
- Unit Testing
- Algorithms
- Data Structures
- Theory of Computation
- Computer Vision
- Information Security
- Cybersecurity
- NoSQL
- MongoDB
- React.js
- Next.js
- Gitlab
- GitOps
- Git
- Linux
- System Administration
- Linux System Administration
- Nushell
- Bash
- WebAssembly
- WebGL
- SQL
- Problem Solving
- Serverless Computing
- Functional Programming
- Embedded Systems
- Systems Programming
- Kernel Programming
- Geographic Information Systems (GIS)
- Geoinformatics
- Network Engineering
- Machine Learning
- Vim
- JavaScript
- C#
- .NET
- Angular
- Early-Stage Startups
- Azure Cosmos DB
- Leadership
- Critical Thinking
- English

## Certifications

- Functional Programming in Haskell — University of Glasgow (https://www.futurelearn.com/certificates/d625jwr)
- Elements of AI: Introduction to AI — University of Helsinki (https://certificates.mooc.fi/validate/t5ymk55oh2)
- Ethics of AI — University of Helsinki (https://certificates.mooc.fi/validate/kw9xpcaeodc)
- Elements of AI: Building AI — University of Helsinki (https://certificates.mooc.fi/validate/wdfg5sj67vs)
- GitLab Certified Git Associate — GitLab (https://www.credly.com/badges/d9dfcc10-c90e-4f11-ae28-0890f80d4f8b/linked_in_profile)
- Certificate of Cloud Security Knowledge v.4 — Cloud Security Alliance (https://www.credly.com/badges/feb95a38-7883-494d-95fa-b8e79093e06d/linked_in_profile)
- Mathematical Thinking in Computer Science — UC San Diego (https://www.coursera.org/account/accomplishments/records/FZHJ6SHCSNPW)
- Combinatorics and Probability — UC San Diego (https://www.coursera.org/account/accomplishments/records/Y9S7JY8K2YD8)
- The Science of Well-Being — Yale University (https://www.coursera.org/account/accomplishments/records/ZTFYFMWAYWHH)
- Foundations of Data Structures and Algorithms — University of Colorado Boulder (https://www.coursera.org/account/accomplishments/specialization/769PQ3JKCTVD)
- Network Systems: Principles in Practice — University of Colorado Boulder (https://www.coursera.org/account/accomplishments/specialization/D6KJGJ5FF4S8)
- CompTIA Cloud+ — CompTIA (https://www.credly.com/badges/66ab52e6-7fff-4e8d-b6e6-a8482af16354/linked_in_profile)
- Computing, Ethics, and Society — University of Colorado Boulder (https://www.coursera.org/account/accomplishments/specialization/HG8X189TOGGC)
- Mathematics for Machine Learning and Data Science — DeepLearning.AI (https://www.coursera.org/account/accomplishments/specialization/50RFK09OK53D)
- EF SET English Certificate 77/100 (C2 Proficient) — EF SET (https://cert.efset.org/8exL1K)
- Data Mining Foundations and Practice — University of Colorado Boulder (https://www.coursera.org/account/accomplishments/specialization/Y2RTAIC6KYR7)
- Advanced Embedded Linux Development — University of Colorado Boulder (https://www.coursera.org/account/accomplishments/specialization/QOUFLON7YJ5Q)
- Security and Ethical Hacking — University of Colorado Boulder (https://www.coursera.org/account/accomplishments/specialization/Y9W810K0KCGO)
- Computer Vision — University of Colorado Boulder (https://www.coursera.org/account/accomplishments/specialization/9HL4Z7CNZO2Q)
- Writing in the Sciences — Stanford University (https://www.coursera.org/account/accomplishments/verify/W1JP3E71NTAQ)
- Introduction to Philosophy — The University of Edinburgh (https://www.coursera.org/account/accomplishments/records/W6QBE7UMJTT3)
- Philosophy of Science — University of Pennsylvania (https://www.coursera.org/account/accomplishments/records/G46J9HXUIAGP)
- Software Architecture for Big Data — University of Colorado Boulder (https://www.coursera.org/account/accomplishments/specialization/2T2F4WWUPUUU)

## Projects

- **AspNetCore.Identity.DocumentDB** — https://github.com/FelschR/AspNetCore.Identity.DocumentDB
  A Cosmos DB (DocumentDB) storage provider for ASP.NET Core Identity.
- **Letzte Werbung Melder** — https://web.archive.org/web/20191021030141/https://www.letzte-werbung.de/melder
  Web app that allowed users to report companies that send mail advertising despite “No advertising” sticker on mailbox.
- **Plastikpost** — https://web.archive.org/web/20220710170444/https://www.plastikpost.de/
  Every week, up to 20.7 million issues of “Einkauf Aktuell” land in German mailboxes. Plastikpost.de allowed users to object very easily: over 79 000 objections have been recorded.
- **NixOS Config & Homelab** — https://codeberg.org/felschr/nixos-config
  Maintaining my personal & work computers as well as a homelab via a declarative NixOS configuration. My homelab hosts services from home automation to media servers & more.
- **pgp2ssh**
  Derive private ed25519 SSH key from private PGP key.
- **Pheno-Inspect Plant Analyzer Web**
  Developed a web-based frontend for Pheno-Inspect's Digital Phenotyping platform powered by Computer Vision.

## Volunteering

- Nixpkgs Contributor at NixOS
- Member in Neurodiversity Working Group at Merge Forward (CNCF)
- Lead Software Engineer at Letzte Werbung e.V.
- Member at Volt Deutschland

## Languages

- German (native)
- English (full_professional)

## Other profiles

- linkedin: https://www.linkedin.com/in/schroeter
- github: https://github.com/felschr
- gitlab: https://gitlab.com/felschr
- orcid: https://orcid.org/0009-0004-1820-0585
- codeberg: https://codeberg.org/felschr
- website: https://felschr.com
- forgejo: https://git.felschr.com/felschr
- website: https://atvari.eu
- linkedin: https://www.linkedin.com/company/atvari/
- fediverse: https://fosstodon.org/@felschr