Jochen Hinrichsen - DevSecOps Expert for Secure Releases

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Eschborn, Germany

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Experience

Jan 2021 - Dec 2024

4 years

DevSecOps Expert

DB InfraGO

Central build and delivery for 20+ applications, 100+ pipelines/day, 700+ GitLab projects
Build pipelines for Go, Java and JavaScript
Provisioning of 100+ components
Quality assurance via GitLab Code Quality and SonarQube
Checks for dependencies, licensing and vulnerabilities
Release creation via Jira and ServiceNow
SBOM, Supply Chain Security, distroless images
PoC GitLab Runner: Nomad vs. Kubernetes
Technologies: Artifactory, buildah, GitLab Premium, Go, Gradle, Jenkins, Mend, Podman

Jan 2018 - Dec 2021

4 years

DevOps Expert

DB Netz AG

Design and implementation of a central build and delivery system
Introduction of GitLab and Artifactory
Build pipelines for Go, Java and JavaScript
Automatic bugfix detection and synchronization in ALM
Quality assurance via SonarQube
Technologies: ALM, Artifactory, Bitbucket, GitLab CE, Jenkins, NGINX, Whitesource

Jan 2016 - Dec 2018

3 years

CI/CD Expert

Commerzbank AG

Deployment of the production website
Maintenance of a monolithic repository (1,300+ Maven modules)
Coordination of 30+ agile development teams
Migration from TFS/TFVC to Git
Setup and operation of the SonarQube server
Technologies: Bazel, Git, Go, Jenkins, Maven, Nexus, SonarQube

Jan 2010 - Dec 2016

7 years

CI/CD Expert

Deutsche Bank

Build, configuration and deployment for 40+ applications
Introduction of Hudson/Jenkins
Management of 25+ Gradle projects, 500+ Jenkins jobs
Creation of native packages for AIX, Linux and SunOS
Technologies: Ant, Artifactory, Git, Gradle, Jenkins DSL, Maven, Nexus, SonarQube

Jan 2009 - Dec 2010

2 years

CI/CD Expert

Deutsche Telekom

Migration of the CI system from Cruise Control to Hudson
Technologies: Ant, ClearCase, Groovy, Java, Maven, Mercurial

Jan 2009 - Dec 2009

1 year

Android Developer

Android Developer Challenge

Development of an Android prototype
Technologies: Java, Android SDK

Jan 2009 - Dec 2009

1 year

Kernel Developer

Linux Kernel

Linux kernel driver for Fujitsu Siemens Super-IO chip
Technologies: C, Linux kernel

Jan 2008 - Dec 2009

2 years

Build Manager

Deutsche Bahn AG

Standardization of the build/CI environment in a large enterprise
Technologies: Continuum, Hudson, Nexus, Sonar, Maven, OSGi

Jan 2006 - Dec 2008

3 years

Software Engineer

Deutsche Bank AG

Output Management System: Migration from StreamServe to DocFamily
Technologies: Java, Groovy (8000+ LOC), Spring, XML/XSLT, Oracle DB, IBM MQ, Tomcat

Jan 2003 - Dec 2005

3 years

Software Engineer

Deutsche Bank AG

Web Application Maintenance: Maintenance of 5+ web applications, Java batch on IBM mainframe, SADV application
Technologies: Java, J2EE, JSP, Struts, Groovy, Axis, Castor, DB2, WebSphere

Jan 2003 - Dec 2003

1 year

Software Engineer

Deutsche Bank AG

Workflow Manager: Monitoring securities transactions (four-tier architecture)
Technologies: Java, JSP, Struts, Web Services, DB2, WebSphere

Jan 2002 - Dec 2002

1 year

Software Engineer

Deutsche Bank AG

Net*Trader Client: Client for securities trading
Technologies: Java Swing, Java Web Start, SOAP, WebSphere, CICS

Jan 2002 - Dec 2002

1 year

Software Engineer

EMBL Heidelberg

Comparative Reports: Presentation of biopharma research results
Technologies: Java Swing, Apple WebObjects, Oracle

Jan 2001 - Dec 2001

1 year

Software Engineer

Talkline / E-Plus

Invoice Online: Online invoicing for E-Plus end customers
Technologies: J2EE, JSP, Struts, XML/XSL, Oracle 9iAS

Jan 2000 - Dec 2000

1 year

Software Engineer, Project Manager

emagine GmbH

EURO-World auction platform: Internet auction platform
Technologies: Apple WebObjects, Java, Oracle DB

Jan 1999 - Dec 1999

1 year

Software Engineer, Project Manager

emagine GmbH

e-vote general meeting: Internet voting system for virtual general meeting
Technologies: Apple WebObjects, Java, Oracle DB

Jan 1996 - Dec 1998

3 years

Software Engineer → Project Manager

Deutsche Bank AG

Internet Banking: development of Internet Banking frontend, migration to WebObjects
Technologies: Java, Swing, WebObjects, Oracle DB

Jan 1994 - Dec 1996

3 years

Software Engineer

BIK / Genossenschaftsbanken

Software for financial service providers: client/server applications in the financial sector
Technologies: C++, Java, Sybase DB

Jan 1992 - Dec 1994

3 years

Systems Engineer

Deutsche Telekom

Building an intelligent network: service detailing with FTZ, coordination in the USA
Technologies: C, ISO/OSI, TCP/IP, ISDN, IVR, Tandem Computers

Developer

Eigenprojekt

Solved 524 puzzles (2015–2025), intensive performance tuning in Go
Technologies: Go 1.25, algorithms (graphs, dynamic programming, parsing), performance (profiling, benchmarking, optimization)

DevSecOps Expert, Fullstack Developer, AI Engineering

Kambrium Software GmbH

Website, CRA Wizard and AI agents for classifying products according to EU CRA
Frontend: CSS, HTML, Typescript
Backend: Cloudflare Workers, Go
AI/LLM: Claude Code, Github Copilot, OpenAI API
MCP Server: CRA Classify Agent (TypeScript), CRA Classification Server (Go)

Remote

Developer

Kambrium Software GmbH

MCP server for Boataround yacht charter platform integration
Technologies: Go, MCP, remote REST API

Developer

Kambrium Software GmbH

Local AI agents control the Fritz!Box (all models)
Fritz!Box TR-064 API, UPnP/SOAP
Go (golang), MCP (Model Context Protocol)
Local LLM
Clean code, minimal dependencies, Docker/Podman scratch images
Extremely strong security model: SLSA level 2 @gitlab, SLSA level 3 @github
Identical release artifacts from Gitlab and Github through reproducible pipelines (above SLSA level 4)

Fullstack Developer

Kambrium Software GmbH

Spelling training according to DIN 5009 and NATO/ICAO – completely offline, no cloud, no data leaves the device
STT: Whisper (whisper.cpp/WASM), TTS: Piper Neural Voice
PWA with service worker – load once, offline forever
Local LLM
Standalone Go web server, all assets embedded (265 MB single binary including whisper model)
Podman, OCI native scratch images

Fullstack Developer

Kambrium Software GmbH

Fullstack application with frontend, backend, REST and MCP API
Frontend: Svelte, Tailwind CSS, HTML, Typescript, Playwright E2E Testing
Backend: Java 21, Quarkus, Maven
Database: PostgreSQL, H2
Auth: Keycloak, OAuth2
Infrastructure: Podman compose, Github CI/CD, self-hosted runners, Google Cloud Platform (GCP)

Software Engineer

Kambrium Software GmbH

Created electronic invoices according to the XRechnung and ZUGFeRD standards
Technologies: XRechnung, ZUGFeRD, CEN 16931, Google Sheets, Google Apps Script, MCP Server (Go), OAuth2

Industry experience

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

Experienced in Banking and Finance, Transportation, Telecommunication, Information Technology, and Biotechnology.

Banking and Finance

Transportation

Telecommunication

Information Technology

Biotechnology

Business area experience

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

Experienced in Information Technology, Product Development, Quality Assurance, Project Management, and Research and Development.

Information Technology

Product Development

Quality Assurance

Project Management

Research and Development

Summary

I ship secure applications to production before others have secured their JIRA ticket – if it ain’t live, it didn’t happen. And from then on, making releases as boring as possible. After GoLive is before GoLive.

Security clearance (SÜ1, SÜ2, §7 LuftSiG) available on request

Skills

Security Focus

Supply Chain Security
Devsecops
Ai Security
Sbom
Dependency Minimization
Shift Left
Container Hardening
Prompt Injection Defense
Reproducible Builds
Code Signing
Distroless Images
Vulnerability Scanning
Mcp
Input Validation
Llm Guardrails

Technologies

Ai / Llm: Claude Code, Mcp Server, Ollama, Openai Api
Operating Systems: Linux (Fedora, Rhel, Suse), Aix, Sunos
Build: Bazel, Gradle, Maven, Ant
Ci/Cd: Gitlab Ci, Github Actions, Jenkins, Hudson, Continuum, Cruise Control
Code Quality: Sonarqube, Mend, Whitesource
Container: Podman, Buildah, Distroless, Static Binary Container, Minimal Images, Multi-Arch Oci
Databases: H2, Postgresql, Oracle, Db2, Sybase
Definitive Media Library (Dml): Artifactory, Nexus
Hosting: Google, Hetzner, Cloudflare Workers
Programming Languages: Go, Java, Typescript, Javascript, Groovy, C, C++, Assembler
Security: Sbom, Supply Chain Security, Code Signing, Reproducible Builds, Vulnerability Scanning, Prompt Injection Defense
Speech Processing: Stt (Whisper, Whisper.Cpp/Wasm), Tts (Piper Neural Voice), Ivr (Intelligent Network)
Version Control: Git, Mercurial, Clearcase, Subversion, Cvs

Languages

German

Native

English

Advanced

Latin

Advanced

French

Elementary

Education

Oct 1988 - Jun 1992

FH Telekom Dieburg

Dipl.-Ing. in Electrical Engineering (Telecommunications) · Electrical Engineering (Telecommunications) · Dieburg, Germany

Oct 1979 - Jun 1988

Hohe Landesschule Hanau

High School Diploma · Hanau, Germany

Certifications & licenses

Security clearance SÜ1

Security clearance SÜ2

Security clearance §7 LuftSiG

Statistics

Experience

Total positions 26

Experience in Banking and Finance 21 y

Avg length 1 y 8 m

Longest experience 6 y 11 m

Expertise

Recent roles DevSecOps Expert, DevOps Expert, CI/CD Expert

Main industries Banking and Finance, Transportation, Telecommunication

Main business areas Information Technology, Product Development, Quality Assurance

Qualifications

Highest degree Bachelor

Certifications earned 3

Profile

Member since

February 2026

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Frequently asked questions

Have questions? Find more information here.

Jochen is based in Eschborn, Germany.

Jochen speaks the following languages: German (Native), English (Advanced), Latin (Advanced), French (Elementary).

Jochen has at least 33 years of experience. During this time, Jochen has worked in at least 10 different roles and for 13 different companies. The average length of individual experience is 2 years and 9 months. Note that Jochen may not have shared all experience and actually has more experience.

Based on recent experience, Jochen would be well-suited for roles such as: DevSecOps Expert, DevOps Expert, CI/CD Expert.

Jochen's most recent position is DevSecOps Expert at DB InfraGO.

In recent years, Jochen has worked for DB InfraGO and DB Netz AG.

Jochen is most experienced in industries like Banking and Finance, Transportation, and Telecommunication. Jochen also has some experience in Information Technology and Biotechnology.

Jochen is most experienced in business areas like Information Technology, Product Development, and Quality Assurance. Jochen also has some experience in Project Management and Research and Development.

Jochen has recently worked in industries like Transportation.

Jochen has recently worked in business areas like Information Technology and Quality Assurance.

Jochen holds a Bachelor in Electrical Engineering (Telecommunications) from FH Telekom Dieburg.

Jochen has 3 certificates. These include: Security clearance SÜ1, Security clearance SÜ2, and Security clearance §7 LuftSiG.

The availability of Jochen needs to be confirmed.

Daily rate distribution

0 2 4 6 8

<€800 €800-960 €960-1120 €1120-1280 €1280+

The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.

Average rates for similar positions

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Daily rate avg. 948 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

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Median rate 940 €

The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.

Calculated based on our freelancers’ daily rates as of 26 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.