Andreas Nolden - No activity / Open Source Founder

Q: Where is Andreas based?

Andreas is based in Witzenhausen, Germany .

Q: What languages does Andreas speak?

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

Q: How many years of experience does Andreas have?

Andreas has at least 22 years of experience. During this time, Andreas has worked in at least 14 different roles and for 14 different companies . The average length of individual experience is 2 years and 6 months . Note that Andreas may not have shared all experience and actually has more experience.

Q: What is Andreas's latest experience?

Andreas's most recent position is Open Source Founder at Privatier .

Q: What companies has Andreas worked for in recent years?

In recent years, Andreas has worked for Privatier , Reconstruction Loan Corporation , VBM Service GmbH , and Univention GmbH .

Q: Which industries is Andreas most experienced in?

Andreas is most experienced in industries like Banking and Finance , Information Technology , and Tourism . Andreas also has some experience in Manufacturing , Education , and Retail .

Q: Which business areas is Andreas most experienced in?

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

Q: Which industries has Andreas worked in recently?

Andreas has recently worked in industries like Information Technology , Manufacturing , and Banking and Finance .

Q: Which business areas has Andreas worked in recently?

Andreas has recently worked in business areas like Information Technology , Product Development , and Research and Development .

Recommended expert

Witzenhausen, Germany

Experience

Jul 2024 - Present

1 year 9 months

Open Source Founder

Privatier

AI-supported source code analysis
AI image generation for a shirt shop
AI-supported analysis of connected YouTube channels and commenting users
AI-supported software prototyping
Operation of a local AI environment
3D printing and scanning: development of a process to repair GfK parts using 3D-printed negative molds

The focus is on practical applications of new technologies, founding an open-source project for a yacht autopilot, as well as yacht refit and motorhome conversion.

Feb 2023 - Jun 2024

1 year 5 months

Architect / Security Engineer

Reconstruction Loan Corporation

Evaluating different API gateway products based on specific customer requirements, including 2FA/MFA
Prototype installation and testing with Keycloak and Active Directory/ADFS
Comparison of API gateway vs. service mesh vs. combination, and buy vs. build decisions
Designing a vendor-neutral standard architecture, prototyping and going live with an open-source variant
Training staff on API gateway, token handler, BFF and phantom tokens
Supporting the implementation of token authentication in backends/microservices
Preparing decision papers internally and for an EU tender
Supporting the agile transition and building the Kubernetes/OpenShift platform
Creating CI/CD pipelines, Helm charts, Vault configuration, integrating SAST/DAST
Integrating ChatGPT into documentation and compliance workflows

May 2022 - Mar 2023

11 months

Identity Management Consultant

VBM Service GmbH

Consulting and architectural implementation with Keycloak for the project "bildungslogin.de"
Identity brokering: authentication and authorization of teachers and students with the publisher's license management
Checking mass and single licenses via Keycloak extensions and script mappers
Focus on performance and resilience under peak loads of up to 12 million users

Jun 2020 - Aug 2022

2 years 3 months

Architect / Security Engineer

Univention GmbH

Designing single sign-on and multi-factor authentication with Keycloak in the Phoenix project (Digital Sovereign Workplace)
Integrating privacyIDEA with hardware tokens to connect legacy systems
Using patterns like BFF (Backend for Frontend) and token handlers
Using Keycloak extensions: script/token mappers, custom authenticators
Evaluating and deploying various API gateways for two-factor authentication of legacy-prone applications
Integrating federated identity providers and modernizing secrets management with Hashicorp Vault

Nov 2019 - Feb 2020

4 months

API Security Consultant / Security Engineer

TUI Infotec

Transitioning an internal interface to internet availability under increased security requirements
Conducting comprehensive security reviews and software adjustments
Implementing SSO using OIDC and Keycloak
Integrating the Apigee API gateway

Nov 2017 - Jun 2018

8 months

Consultant / Software Engineer

Otto GmbH & Co KG

New development of the product deployment control system and migration to AWS Cloud for 10 million products in 200 webshops
Specifying and securing API interfaces with Keycloak
Ensuring the security of internal legacy solutions during the cloud migration

Nov 2016 - Jul 2017

9 months

API Security Consultant / Test Automation

Otto GmbH & Co KG

Managing a department-wide automated test suite for quality assurance
Co-developing internal tools and prototyping new microservices
Advising and supporting other teams in security and test automation

Mar 2015 - Apr 2016

1 year 2 months

Software Developer / Test Automation Engineer

EEX AG

Contributing to the specification and quality assurance of an AMQP-based API interface
Developing automated tests, performing error analysis, and providing third-level support
Data mining and query optimization in Oracle SQL

Apr 2014 - Jul 2014

4 months

Test Automation Engineer

VW AG

Designing and implementing automated API tests for an existing project
Adapting the build process and creating test doubles for external systems

Nov 2012 - Jun 2013

8 months

Butzbach, Germany

JEE / JBoss Software Developer

EWE TEL GmbH

Developing JEE applications on JBoss

Oct 2011 - Aug 2014

2 years 11 months

Ulm, Germany

Penetration Tester

it.sec GmbH & Co KG

Conducted penetration tests on various web applications according to the OWASP Testing Guide
Created reports and expert assessments to improve application security

Jun 2008 - Apr 2011

2 years 11 months

Giessen, Germany

JEE Software Developer & Scrum Master

Service-Reisen Gießen

Developed JEE applications and performed Scrum Master duties

Mar 2008 - Oct 2008

8 months

Giessen, Germany

Web Security Lecturer

Technische Hochschule Mittelhessen

Taught a web security course in the Master's Computer Science program

Oct 2004 - Dec 2017

13 years 3 months

Hamburg, Germany

Security Consultant

Netbank AG

Performed penetration testing and source code reviews on websites and outsourcing projects
Prepared expert assessments on internet security, OWASP standards, IT baseline protection, and PCI-DSS
Supported internal IT with security issues

Mar 2002 - Mar 2005

3 years 1 month

Butzbach, Germany

Software Developer

Äakus AG

Performed part-time software development

Industry Experience

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

Experienced in Banking and Finance, Information Technology, Tourism, Manufacturing, Education, and Retail.

Banking and Finance

Information Technology

Tourism

Manufacturing

Education

Retail

Business Area Experience

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

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

Information Technology

Quality Assurance

Product Development

Project Management

Research and Development

Operations

Summary

The following portfolio was created by AI here based on my PDF portfolio. Please read the actual PDF.

I will thoroughly revise all of this here if this platform proves useful for me.

Skills

More Than 22 Years Of Professional Experience In Software Development, Including 16 Years Full-time And Six More Part-time Alongside My Studies.
Expert: Iam (Keycloak/active Directory/oidc/adfs/saml/oauth2/aws Cognito), 2fa/mfa/passwordless (Otp, Yubico/fido2/passwordless/webauthn), Api Gateways (Kong, Gloo, Gravitee, Ibm Api Connect, Tyk, Krakend, Apigee), Service Mesh (Istio/red Hat Service Mesh 2.0), Python, Node.js, Kubernetes, Openshift, Java/jee, Message-oriented Middleware (Jms, Amqp, Kafka, Mqtt), Apis (Rest, Graphql), Scrum, Test Driven Development, Secure Software Development.
Advanced: Open Policy Agent (Opa), Hashicorp Vault, Fido2, Serverless Architectures (Especially Aws Lambda), Spring Boot, Aws, Docker, Mesos, React, Redux, Vue.js, Llama, Chatgpt, Deepseek, Claude, Midjourney, Ollama, Opencv, Numpy, Pandas, Twisted, Jenkins, Linux (Debian, Redhat, Ubuntu, Alpine, Busybox), Groovy, Ardupilot, Chibios, Postgresql, Timescaledb, Oracle Sql, Mysql, Mongodb, Elasticsearch / Elastic Stack (Logstash, Kibana), Grafana, Time Series Databases, Influxdb, Prometheus, Junit, Testng, Playwright, Cypress, Continuous Deployment/delivery, Prototyping Of N-tier Systems With Mobile/embedded Layers, Subversion, Git, Bsi It Baseline Protection, Dora, Ldap, Pci-dss, Owasp (Top Ten/asvs), Pentesting, Apigee, Tcp/ip, Jboss / Wildfly, Tomcat, Jboss Seam / Weld / Webbeans (Jsr-299) / Cdi, Spring Boot, Java Server Faces (Jsf), Itext, Soa (Rest, Soap, Jax-ws, Jax-rs, Wsdl, Xmlrpc).
Beginner/intermediate: Kvm Virtualization, Retrieval-augmented Generation (Rag), Jbpm, Android Sdk, Php4/5, C/c++, Pl/sql, Pl/pgsql, Asterisk, Git, Postfix, Exim, Courier, Cups, Lvm, Borg, Backuppc, Atmel Avr, Esp8266, Esp32, I2c, Spi, Uart, Dmx, Rs485, Ethernet, Bluetooth, Arduino, Siemens Logo!, Iec 61131-3 St/fbd (Unipi Mervis).
It All Started In 1992 With A 286 And Turbo Pascal 6.0. From Assembler, C, Gw-basic (School), It Finally Went To C++, Php, And Eventually Java And Python.
Since School I Have Had A Strong Focus On Computer Security And Since 2004 I Have Been Advising Various Companies In This Field.

Languages

German

Native

English

Advanced

French

Elementary

Education

Mar 2002 - Mar 2008

University of Applied Sciences Mittelhessen

Diploma in Computer Science · Computer Science · Giessen, Germany · 1.7

Mar 2001 - Mar 2008

University of Applied Sciences Mittelhessen

Information and Communication Technology (Electrical Engineering ICT) · Giessen, Germany

Certifications & licenses

Advanced Open Water Diver

FKN

SBF See

SKS

SRC

UBI

Statistics

Experience

Total positions 15

Experience in Banking and Finance 14.5 y

Avg length 2 y 1 m

Longest experience 13 y 2 m

Global Experience

Countries worked in 1 (Germany)

Primary country Germany

Expertise

Recent roles Open Source Founder, Architect / Security Engineer, Identity Management Consultant

Main industries Banking and Finance, Information Technology, Tourism

Main business areas Information Technology, Quality Assurance, Product Development

Qualifications

Certifications earned 6

Profile

Created

January 2026

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Frequently asked questions

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

Where is Andreas based?

Andreas is based in Witzenhausen, Germany.

What languages does Andreas speak?

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

How many years of experience does Andreas have?

Andreas has at least 22 years of experience. During this time, Andreas has worked in at least 14 different roles and for 14 different companies. The average length of individual experience is 2 years and 6 months. Note that Andreas may not have shared all experience and actually has more experience.

What roles would Andreas be best suited for?

Based on recent experience, Andreas would be well-suited for roles such as: Open Source Founder, Architect / Security Engineer, Identity Management Consultant.

What is Andreas's latest experience?

Andreas's most recent position is Open Source Founder at Privatier.

What companies has Andreas worked for in recent years?

In recent years, Andreas has worked for Privatier, Reconstruction Loan Corporation, VBM Service GmbH, and Univention GmbH.

Which industries is Andreas most experienced in?

Andreas is most experienced in industries like Banking and Finance, Information Technology, and Tourism. Andreas also has some experience in Manufacturing, Education, and Retail.

Which business areas is Andreas most experienced in?

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

Which industries has Andreas worked in recently?

Andreas has recently worked in industries like Information Technology, Manufacturing, and Banking and Finance.

Which business areas has Andreas worked in recently?

Andreas has recently worked in business areas like Information Technology, Product Development, and Research and Development.

What is Andreas's education?

Andreas attended University of Applied Sciences Mittelhessen for Computer Science.

Does Andreas have any certificates?

Andreas has 6 certificates. Among them, these include: Advanced Open Water Diver, FKN, and SBF See.

What is the availability of Andreas?

Andreas is immediately available full-time for suitable projects.

What is the rate of Andreas?

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