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Florian Knopf-Senior Software Engineer · System Architect · DevOps Engineer

Florian Knopf
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Bühl, Germany

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Experience

Nov 2025 - Sep 2026

Senior Fullstack Developer — GIS & Cloud

EnBW

Expertise details
Position Summary
Senior Fullstack Developer — GIS & Cloud at EnBW
Industries
Energy
Business Areas
Information Technology
Operations
  • Automated decentralized manual planning of power grid construction projects using a cloud-native GIS platform integrating geodata analysis, infrastructure planning, and cost estimation
  • Designed a cloud-native multi-language architecture with Azure Cloud Functions
  • Integrated ArcGIS/Vertigis and developed JavaScript-based Vertigis workflows for interactive GIS planning tools
  • Developed Python-based cloud functions to automate analysis of complex geodata sets
  • Implemented specialized algorithms for power grid topologies and construction planning with Shapely and GeoPandas
  • Built interfaces between GIS platforms and existing planning systems with uniform API conventions, consistent response structures, and error handling
  • Set up a Pytest unit test pipeline and automated CI/CD processes using Azure Pipelines
  • Optimized performance of geospatial calculation algorithms for large datasets
Sep 2024 - Jul 2025

Senior Software Engineer — Safety-Critical Systems

Frequentis Comsoft

Expertise details
Position Summary
Senior Software Engineer — Safety-Critical Systems at Frequentis Comsoft
Industries
Aerospace and Defense
Business Areas
Information Technology
Product Development
Quality Assurance
  • Developed and ensured quality of safety-critical air traffic control software in the CAMOS project for EUROCONTROL
  • Analyzed, extended, and stabilized deeply nested legacy architectures under real operating conditions in a zero-fault tolerance environment
  • Implemented safety-critical functions in Ada and Python
  • System design, configuration logic, and interface definition
  • Automated firewall configuration under existing network restrictions
  • Analyzed and modeled technical requirements (requirements engineering)
  • Developed automated test scenarios for system verification
  • Automated processes with Python and Bash scripts
  • Collaborated with international stakeholders and produced technical documentation and user manuals
Aug 2024 - Sep 2024

Software Architect & Go Developer

Witt-Gruppe / Otto Group

Expertise details
Position Summary
Software Architect & Go Developer at Witt-Gruppe / Otto Group
Industries
Transportation
Retail
Business Areas
Information Technology
Supply Chain Management

15 years of core technical responsibility for customs and logistics automation in production at the Otto Group.

Design, implementation, and stabilization of systems handling 1,000+ time-critical processes in a 24/7 environment — including integration of diverse interfaces and gradual modernization of legacy systems under continuous operation.

Built and enhanced document and archiving systems (PDF, XML) and implemented regulatory requirements (e.g. Brexit) without disrupting existing workflows.

Focus on stable operations, transactional integrity, and continuous migration of existing systems toward more robust architectures.

Technologies: Python, Go, Delphi, Oracle (PL/SQL), JavaScript, PostgreSQL, XML / JSON / CSV, HTTP / FTP, wkhtmltopdf (legacy), batch processing, retry mechanisms

Apr 2022 - Aug 2024

Lead Developer & Data Engineer

DB InfraGO AG

Expertise details
Position Summary
Lead Developer & Data Engineer at DB InfraGO AG
Industries
Transportation
Business Areas
Information Technology
  • Real-time monitoring of all trains on the German network with bottleneck prediction accuracy above 50%
  • Set up an event-driven architecture with RabbitMQ including clustering and failover for continuous 24/7 operation
  • Built a Python framework for real-time calculation of operational metrics processing 1,000 records per second
  • Profiled and optimized performance under limited system resources
  • Developed REST APIs and visualizations with FastAPI and Next.js
  • Pair programming, mentoring junior developers, and technical documentation
Mar 2022 - Apr 2024

DevOps & Embedded Software Engineer

Mercedes-Benz Vans

Expertise details
Position Summary
DevOps & Embedded Software Engineer at Mercedes-Benz Vans
Industries
Automotive
Business Areas
Information Technology
Product Development
Quality Assurance
  • Automated and optimized the entire software lifecycle of a Linux-based control unit in the automotive sector
  • Developed a modular CMake build system for Go and Rust components
  • Enhanced and refactored Rust applications in an embedded context
  • Built and managed a CI/CD pipeline with GitHub Actions, automating linting, static analysis, tests, and releases
  • Integrated Black Duck for open-source analysis and security audits
  • Coordinated and ensured quality of outsourced software components
Dec 2021 - Mar 2022

Python Developer — ML-based contract processing

Norddeutsche Landesbank

Expertise details
Position Summary
Python Developer — ML-based contract processing at Norddeutsche Landesbank
Industries
Banking and Finance
Business Areas
Information Technology
Product Development
Project Management
  • Technical project management and takeover of an ML-based application for automated IBOR rate adjustment in PDF contracts
  • Implementation and validation of ML-based PDF text extraction
  • Storage and processing of extracted data in Oracle
  • Development of PySpark logic for searching large datasets
  • Error analysis and troubleshooting in an Airflow-driven pipeline
  • Expansion of automated tests and creation of technical documentation
May 2021 - Dec 2021

Embedded Security Analyst & Test Framework Developer

Daimler TSS

Expertise details
Position Summary
Embedded Security Analyst & Test Framework Developer at Daimler TSS
Industries
Automotive
Business Areas
Product Development
Quality Assurance
  • Development and enhancement of a pen-test framework for security analysis of control units for the next generation of electric vehicles
  • Porting the framework from Python 3.7 to 3.9
  • Refactoring and optimization of existing test tools
  • Implementation of automated unit and integration tests and verification of pen-test findings via CANoe
  • Integration of CAN, CAN FD, and CAN over Ethernet
  • Setup and configuration of specialized test environments
Apr 2020 - Dec 2020

GIS Developer — Route optimization

Deutsche Post AG

Expertise details
Position Summary
GIS Developer — Route optimization at Deutsche Post AG
Industries
Transportation
Business Areas
Information Technology
Logistics
  • Development of a QGIS desktop application for route optimization in mail delivery
  • Visualization of delivery-relevant geodata and implementation of overlay functions for distance, time windows, and volume
  • Development of selection and filtering mechanisms for tour optimization
  • UI development with PyQt5 including direct coordination with end users
  • Implementation of automated unit tests and performance optimization with Cython
Jan 2020 - Mar 2020

DevOps Engineer — Legacy Operations & Disaster Recovery

Blue Yonder GmbH

Expertise details
Position Summary
DevOps Engineer — Legacy Operations & Disaster Recovery at Blue Yonder GmbH
Industries
Information Technology
Business Areas
Information Technology
Operations
  • Operation and monitoring of an ML SaaS application on Debian 7 servers
  • Automation of maintenance and monitoring tasks via Bash
  • Development and implementation of a disaster recovery strategy using LVM, mdadm RAID, and LUKS encryption
  • Creation of technical documentation and reproducible workflows in Jupyter Notebooks
Apr 2019 - Sep 2019

Python/GIS Developer

DB Systel GmbH

Expertise details
Position Summary
Python/GIS Developer at DB Systel GmbH
Industries
Information Technology
Transportation
Business Areas
Information Technology
Product Development
  • Development of a QGIS plugin (PyQt5) for interactive data editing for Deutsche Bahn's real estate and asset management
  • Visualization and filtering of map layers for parcels, buildings, and usage zones
  • Implementation of rail-specific analysis functions and calculation of hierarchical area structures
  • Migration of existing property data into PostGIS and integration into the existing CI/CD environment
Mar 2019 - May 2019

Software Engineer — Legacy Migration

Heinrich Heine GmbH (Otto Group)

Expertise details
Position Summary
Software Engineer — Legacy Migration at Heinrich Heine GmbH (Otto Group)
Industries
Transportation
Retail
Business Areas
Information Technology
  • Migration and modernization of 50 production customs and logistics applications by replacing the Borland Database Engine with FireDAC
  • Porting from Delphi 7 to 10.3 and refactoring of forms, reports, and data access layers
  • Ensuring functionality under production conditions
Dec 2018 - May 2019

Interface Architect & Software Engineer

Heinrich Heine GmbH (Otto Group)

Expertise details
Position Summary
Interface Architect & Software Engineer at Heinrich Heine GmbH (Otto Group)
Industries
Retail
Business Areas
Information Technology
  • Designed a central interface architecture (CSV, JSON, XML) to consolidate client-specific solutions for Germany, Switzerland, and the UK
  • Migrated existing interfaces to a central format with HTTP(S) and FTP integration
  • Developed a management tool for interface definitions and SSIS integration for automated processing
  • Automated generation of technical documentation and implementation of country-specific Brexit requirements
Nov 2018 - Jan 2019

Software Engineer — Document Management

Heinrich Heine GmbH (Otto Group)

Expertise details
Position Summary
Software Engineer — Document Management at Heinrich Heine GmbH (Otto Group)
Industries
Retail
Business Areas
Information Technology
  • Developed a GDPR-compliant personnel file system for the Swiss subsidiary
  • Implemented secure document storage as BLOBs in Oracle with fine-grained access controls and encrypted access
  • Automated versioning, logging of all accesses, and automatic document recognition and classification
Aug 2018 - Oct 2018

Software Engineer — Network Automation

Vodafone GmbH

Expertise details
Position Summary
Software Engineer — Network Automation at Vodafone GmbH
Industries
Telecommunication
Business Areas
Information Technology
  • Developed an automation platform for Vodafone's core network (3G/4G) to collect data from SGSN and MME nodes
  • Implemented push and pull data collection via SSH and developed a parser for proprietary Cisco formats
  • Built a network element registry with configuration and mapping logic
  • Integrated Apache NiFi and forwarded metrics to Splunk
Jun 2018 - Sep 2018

Software Engineer — Automotive QA & Requirements Traceability

Robert Bosch GmbH

Expertise details
Position Summary
Software Engineer — Automotive QA & Requirements Traceability at Robert Bosch GmbH
Industries
Automotive
Business Areas
Information Technology
Product Development
Quality Assurance
  • Developed an automated requirements traceability pipeline for the VW MQB platform (Golf, Tiguan, Audi A3)
  • Integrated system requirements (IBM DOORS), implementation (Git), and test systems via REST APIs
  • Processed DOORS XML exports, RTRT test results, and CLARA code coverage reports
  • Automated DOORS exports via DXL and generated consolidated Excel reports
May 2018 - Jul 2018

Software Engineer

Heinrich Heine GmbH (Otto Group)

Expertise details
Position Summary
Software Engineer at Heinrich Heine GmbH (Otto Group)
Industries
Retail
Business Areas
Information Technology
Supply Chain Management
  • Development of a server-client architecture for bi-directional data exchange between Heinrich Heine and Migros Switzerland in a click & collect concept
  • Implementation of transaction logic, error handling, retry mechanisms, and audit logging via Microsoft IIS with HTTPS/TLS
  • Consideration of customs and logistics requirements
Feb 2018 - Jul 2018

Cloud Software Engineer

ProSiebenSat.1 Digital GmbH

Expertise details
Position Summary
Cloud Software Engineer at ProSiebenSat.1 Digital GmbH
Industries
Media and Entertainment
Business Areas
Information Technology
Product Development
  • Development of microservices for automated media import into an AWS-based media asset management system
  • Orchestration with AWS Lambda, SNS, S3, and DynamoDB and implementation of asynchronous processing with status tracking
  • Error handling and duplicate detection as well as taxonomic classification of media
Dec 2017 - May 2018

Database Engineer

Heinrich Heine GmbH (Otto Group)

Expertise details
Position Summary
Database Engineer at Heinrich Heine GmbH (Otto Group)
Industries
Transportation
Retail
Business Areas
Information Technology
  • Feasibility analysis and migration from Oracle 11g to Microsoft SQL Server in the context of customs and warehouse logistics systems
  • Analysis of data schema and PL/SQL logic, identification of dialect differences, and design of the migration strategy
  • Execution of migration during live operation
Jan 2017 - Mar 2017

Embedded Systems Developer

Telekom Deutschland

Expertise details
Position Summary
Embedded Systems Developer at Telekom Deutschland
Industries
Telecommunication
Business Areas
Information Technology
Product Development
  • Development of a voice control prototype for Magenta SmartHome based on a Raspberry Pi
  • Reverse engineering of the MagentaTV set-top box via UPnP and integration of a cloud backend and DECT telephony
  • Implementation of wake word detection, command processing, audio feedback, and status display
Apr 2016 - Dec 2016

Software Engineer — Regulated Systems

Boehringer Ingelheim

Expertise details
Position Summary
Software Engineer — Regulated Systems at Boehringer Ingelheim
Industries
Pharmaceutical
Business Areas
Information Technology
Product Development
Quality Assurance
  • Migration of a GMP-regulated dispensing system for pharmaceutical ingredients to the US research site with FDA compliance
  • Refactoring and extension of business logic, implementation of full batch and quantity traceability
  • UI localization and extension with wxPython, and validation in a regulated environment
Mar 2015 - Mar 2020

Lead Backend Engineer & System Architect

Geomeister AG

Expertise details
Position Summary
Lead Backend Engineer & System Architect at Geomeister AG
Industries
Information Technology
Business Areas
Information Technology
Product Development
  • Technical responsibility for backend, architecture and operation of a global navigation and community platform with 60,000+ users
  • Built a routing and mapping infrastructure with GraphHopper and OpenStreetMap
  • Developed a Python REST API, migrated from a monolith to microservices and from Python 2 to Python 3/FastAPI
  • Implemented asynchronous upload processing, performance optimization and SSO integration
Jan 2010 - Dec 2024

Lead Software Engineer & System Architect

Otto Group / Witt-Gruppe

Expertise details
Position Summary
Lead Software Engineer & System Architect at Otto Group / Witt-Gruppe
Industries
Retail
Business Areas
Information Technology
Logistics
  • Core technical responsibility for customs and logistics automation with 1,000+ time-critical processes running 24/7
  • Integrated and consolidated heterogeneous interfaces (CSV, XML, JSON, HTTP, FTP) and migrated legacy systems
  • Designed and implemented document generation and archiving (PDF, XML), including Brexit adjustments
  • Refactored and gradually introduced new frameworks with high stability and transaction safety

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Retail, Information Technology, Transportation, Automotive, Aerospace and Defense, and Energy.

Retail
Information Technology
Transportation
Automotive
Aerospace and Defense
Energy
Profile match chart

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology, Logistics, Product Development, Quality Assurance, Operations, and Supply Chain Management.

Information Technology
Logistics
Product Development
Quality Assurance
Operations
Supply Chain Management
Profile match chart

Summary

Systems that run under real conditions. No prototypes. Focus on implementation over slides.

Continuous data processing, integration into existing systems, and stable operation — even under failure conditions.

Areas of focus: · Real-time data pipelines (1000+ events/sec) · Routing and geodata systems with high data volumes and complex processing · Automation platforms for logistics and operational processes · Integration of legacy systems in live operations · Automated creation and processing of legally relevant documents (PDF workflows in regulated, multi-step processes) · Process automation (over 1,000 daily workflows)

Ownership of the entire lifecycle: Architecture → Implementation → Operation

Technologies: Go, Python, PostgreSQL/PostGIS, Redis, RabbitMQ, Docker, Linux

Typical environments: · Systems are already critical · Requirements are unclear · Failure has real consequences

Working where systems need to stay stable under load, where manual processes can't scale and where existing systems become an operational risk.

Languages

German
Native
English
Advanced

Statistics

Experience

Total positions 22
Experience in Retail 15 y
Avg length 1 y 5 m
Longest experience 14 y 11 m

Expertise

Recent roles Senior Fullstack Developer — GIS & Cloud, Senior Software Engineer — Safety-Critical Systems, Software Architect & Go Developer
Main industries Retail, Information Technology, Transportation
Main business areas Information Technology, Logistics, Product Development

Profile

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Florian based?

Florian is based in Bühl, Germany and prefers 100% remote projects.

What languages does Florian speak?

Florian speaks the following languages: German (Native), English (Advanced).

How many years of experience does Florian have?

Florian has at least 16 years of experience. During this time, Florian has worked in at least 22 different roles and for 18 different companies. The average length of individual experience is 1 year and 9 months. Note that Florian may not have shared all experience and actually has more experience.

What roles would Florian be best suited for?

Based on recent experience, Florian would be well-suited for roles such as: Senior Fullstack Developer — GIS & Cloud, Senior Software Engineer — Safety-Critical Systems, Software Architect & Go Developer.

What is Florian's latest experience?

Florian's most recent position is Senior Fullstack Developer — GIS & Cloud at EnBW.

What companies has Florian worked for in recent years?

In recent years, Florian has worked for EnBW, Frequentis Comsoft, Witt-Gruppe / Otto Group, DB InfraGO AG, and Mercedes-Benz Vans.

Which industries is Florian most experienced in?

Florian is most experienced in industries like Retail, Information Technology, and Transportation. Florian also has some experience in Automotive, Aerospace and Defense, and Pharmaceutical.

Which business areas is Florian most experienced in?

Florian is most experienced in business areas like Information Technology, Logistics, and Product Development. Florian also has some experience in Quality Assurance, Operations, and Supply Chain Management.

Which industries has Florian worked in recently?

Florian has recently worked in industries like Retail, Automotive, and Transportation.

Which business areas has Florian worked in recently?

Florian has recently worked in business areas like Information Technology, Logistics, and Product Development.

What is the availability of Florian?

Florian will be available part-time from May 2026.

What is the rate of Florian?

Florian's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.

How to hire Florian?

To hire Florian, click the Meet button on the profile to request a meeting and discuss your project needs.

Average rates for similar positions

Rates are based on recent contracts and do not include FRATCH margin.

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Market avg: 848-1008 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.

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