Bertrand Rothen - IAM Product Owner, Identity Management

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Berlin, Germany

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Experience

Jul 2025 - Present

1 year 3 months

Cologne, Germany

Interim IAM Product Owner (Identity Management)

REWE digital GmbH

Establishing Identity & Directory Management as a new (split-off) team & product within the IAM cluster.
Leading the “Identity & Directory Management” product (8 people) as Product Owner.
Concept for ‘Digital Identities’, i.e. IDs with n users/accounts and strategy for a modernized product offering.
Upgrading APIs, migrating to a containerized infrastructure, rolling out international markets & standardized solutions across the REWE enterprise group.
Tech: OpenText™ (NetIQ) eDirectory & Identity Manager, LDAP, SAP HR/HCM, Docker/Kubernetes/Podman, REST APIs, Microsoft Active Directory & Entra ID, postgresDB, Keycloak, Ansible, Cyberark (PAM), Apache Kafka, Jira, Confluence, Miro.

Dec 2024 - Apr 2025

5 months

Berlin, Germany

Freelance Senior Product Manager – Partner Service Domain

Aroundhome GmbH

Brought a neglected and underperforming team on track.
Led the Partner Service domain (team of 12 people) as Sr. Product Manager.
Adoption of Continuous Discovery Habits/Opportunity Solution Tree-based methodology.
Tech: Salesforce, Next.js, Feedback & NPS (zenloop, Condens), Feature Flagging (Unleash), RBAC, APIs (REST), Atlassian Jira & Confluence, Miro.

Aug 2024 - Nov 2024

4 months

Wuppertal, Germany

Freelance Product Consultant – AI & Data

Vorwerk SE

Organized & streamlined a complex & cross-functional team, making them 50%+ more efficient.
Product ownership for Data Platform team & projects (e.g. identity and access management (IAM) migration, migration of data warehouses, data visualization, Machine Learning operations).
Design of cross-functional responsibilities & internal consultancy + evangelization of AI & data products.
Tech: Data Platform/Data Lake (Databricks), IdP (Okta, Microsoft Active Directory & Entra ID), IAM (SAML), IaC (Terraform), Cloud Platforms (Azure, AWS), Atlassian Jira & Confluence, Miro.

Oct 2023 - Apr 2024

7 months

Berlin, Germany

Freelance Product Consultant – Partner Side

zolar GmbH

Built a “delivery speedboat” to address crucial operational requirements in a timely manner.
Formalized & streamlined the delivery process, accelerated TTD by roughly 2x.
improved quality of updates using Product & Business Discovery to cut waste and improve ROI for development by 50%.
Tech: PHP, Salesforce, ReactNative (Mobile), APIs (REST), Atlassian Jira & Confluence, Miro.

Feb 2023 - Oct 2023

9 months

Berlin, Germany

Freelance Sr. Product Manager – Mobile

Blacklane GmbH

Ran Product Management for limousine ride hailing service Blacklane's range of mobile apps – Guest and Chauffeur, available on iOS and Android. Delivered more projects & features than ever before.
Upgraded customer experience by adding messaging for frictionless and unified communication in all apps.
Guided the On-Demand product launch in the Dubai market, the first 100% electric fleet in Dubai.
100% migration/upgrade to a state-of-the-art identity and access management (IAM) solution and fraud prevention measures.
Tech: IAM (Keycloak), APIs – Messaging & 2FA (Twilio), Native Mobile (Swift, Kotlin), Location services (Google API), Atlassian Jira & Confluence, Miro.

Dec 2022 - Feb 2023

3 months

Hamburg, Germany

Freelance Product Consultant

Natix GmbH

Developed a launch strategy for mobile app “Drive&”. Over 2,100 sign-ups and 14,000 km mapped within 24 hours of launch, 5,000 sign-ups within the first week.
Orchestrated and tracked over 30 launch activities, such as beta testing phases, development & scope planning, marketing mix, fraud prevention and others.
GDPR-compliant and AI-powered anonymized traffic data detection to grow the Natix Network, a web3-based and tokenized traffic and environment information exchange.
Tech: Android App (Kotlin), IAM (Basic RBAC Auth & 2FA), Web3, GTM/Launch/Rollout Strategy, Atlassian Jira & Confluence, Miro.

May 2022 - Oct 2022

6 months

Berlin, Germany

Hybrid

Freelance Product Lead – Mobile App & Web Shop

THE KADEWE GROUP GmbH

Led product discovery & concept for a “hybrid on-/offline shopping” mobile app project (unreleased).
Improved key performance metrics like gross revenue (over €50MM in 2022), AOV (up by 25%) and checkout funnel by making a lot of additions & improvements to the store.
Tech: Salesforce CommerceCloud, PIM (Akeneo), ERP (MS Dynamics AX), iOS App (Swift), Payment (Adyen), Adobe Workfront, Atlassian Jira & Confluence, Miro.

Nov 2021 - May 2022

7 months

Berlin, Germany

Freelance Sr. Product Manager – B2C & App

Titel Media GmbH

Product Management for Highsnobiety's B2C business (website delivery & e-commerce) as well as the recently released HS App (iOS).
Overhauled product strategy & OKR implementation, increasing precision by 20% & advanced legacy CMS deprecation by 30%.
Ran development and release of HS App's first internal & beta testing versions.
Consulted on hiring process for three openings.
Tech: Headless CMS (Dato), CommerceTools, WordPress, React & ReactNative.

Jan 2021 - Aug 2021

8 months

Berlin, Germany

Freelance Product Lead – Web Shop

THE KADEWE GROUP GmbH

Built the renowned luxury retailer’s omnichannel business, centered around the online store kadewe.de (now discontinued).
Successfully launched Beauty products department and integrated Akeneo PIM, increasing SKU count by 4x.
Inaugurated 100% video streaming-based live shopping and an appointment-booking suite.
100% migrated to improved payment solution & upgraded fraud defense/prevention.
Tech: Salesforce CommerceCloud, PIM (Akeneo), ERP (MS Dynamics AX), Payment (Adyen), Adobe Workfront, Atlassian Jira & Confluence, Miro.

Nov 2020 - Jan 2021

3 months

Berlin, Germany

Freelance Head of Product

RaceScout GmbH

Head of Product for an online race event & experience platform with a Berlin-based venture agency for an established race car brand.
Full product responsibility, reported to C-level stakeholders every two weeks.
enhanced productivity for two nearshored design & development agencies.
Increased output velocity and outcome quality by over 60%.
Tech: React, Payment (Stripe).

Mar 2020 - Oct 2020

8 months

Hamburg, Germany

Freelance Product Owner – Profile & Entity Pages

XING GmbH/NEW WORK SE

Shaped, drove and executed the five-part OKR-based product strategy in collaboration with key stakeholders.
Directed an interdisciplinary team of ten engineers, designers, QAs, and Scrum Masters. Determined product requirements and concepts for seven initiatives, validated them through prototyping, user feedback and A/B testing.
Cooperated with four stakeholders across the organization to be in line with the overall company strategy.
Managed the launch of Company/Employer Branding Pages on the Entity Pages Platform across six departments/organizations.
Oversaw twelve engineers, designers, QAs, and Scrum Masters & supported program management in conjunction with one other large-scale project.

Aug 2019 - Nov 2019

4 months

Freelance Product Owner

Axel Springer SE

Freelance Product Owner for fixed scope of topics within a large-scale project; managing monetization, payment and third-party view features.
Identity and access management (IAM) for six content elements.
Three premium/upsell landing pages & conversion/payment funnels.
100% support for Accelerated Mobile Pages (AMP) and Facebook Instant Articles.

Aug 2017 - Apr 2019

1 year 9 months

On-site

Product Owner

Facelift Brand Building Technologies GmbH

Product Owner for Community Management, Benchmarking and Third-Party Integrations, managing two development teams (on-site and offshore).
Developed a WebSocket-based client-to-client edit notification system (commonly referred to as "Collision Detection") to lower sync rate to two seconds (from two minutes).
Migrated 100% of customers, data and features from a legacy application being phased out.
Added an operator performance logging and reporting suite for SLA compliance tracking of eight key metrics (using a streaming data architecture based on Kafka & using Kubernetes, Docker, ProtoBuf etc.).
Managed a 100% redesign of the Community Management UI.
Migrated 33% of the stack from in-house to offshore team.

May 2014 - Jul 2017

3 years 3 months

Product Manager/Product Owner

Smaato Inc.

Product Manager & Product Owner for Smaato's Publisher Platform SPX.
Integrated several features into SPX, such as user management, a support form, integration of third-party applications, quality controls (spam & fraud prevention) and more.
Planned & orchestrated a gradual frontend rewrite from PrimeFaces to Angular 2.
Implemented a custom data sync service to meet key accounts' needs 100%.
Built the first Smaato Wiki knowledge base.
Led the go-to-market plans and processes for 100% of Smaato's product releases (notably the Smaato Demand Platform (SDX) and the Outstream & Rewarded Video Ads format additions).
Crafted and conducted an SPX internal training course & exam across two global locations (Hamburg, Germany and San Francisco, CA).

Industry experience

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

Experienced in Information Technology, Advertising, Retail, Media and Entertainment, Real Estate, and Energy.

Information Technology

Advertising

Retail

Media and Entertainment

Real Estate

Energy

Business area experience

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

Experienced in Product Development, Information Technology, Marketing, Project Management, Business Intelligence, and Operations.

Product Development

Information Technology

Marketing

Project Management

Business Intelligence

Operations

Summary

Experienced freelance Senior Product Manager with a proven track record (10+ years) spanning various industries and functions as well as a focus on IT Security/Cybersecurity, specifically Product Security, Identity and Access Management (IAM) and Fraud Prevention.

Other areas of expertise include B2B platforms, mobile apps, e-commerce and (social) media.

Skills

B2b
Luxury Retail E-Commerce
Advertising Technology
Mobile Apps
Social Media
Greentech
Cybersecurity
Media & Publishing
Blockchain
Saas
Travel & Logistics
Web3
Process Design
Requirements Management
Stakeholder
Product Strategy
Wireframing
Negotiations
Opportunity Solution Trees (Ost)
Backlog Management
Requirements Design
Identity & Access Management
Product Discovery
Okrs
Continuous Product Discovery
Roadmapping
Stakeholder Management
User Stories
Tdd & Bdd
Quarterly Planning
Agile
Scrum
Kanban
Prototyping
Atlassian Jira
Miro
Sql
Atlassian Confluence
Html, Css, Js
Figma
Adobe Workfront
Linux Command Line
Python
Slides (Keynote Etc.)
Sheets (Excel Etc.)
Identity Providers (Okta, Keycloak)
Macos/Ios
Cloud (Aws, Azure)
Daws (Ableton Live Etc.)
Cms (Misc) & Pim (Akeneo)
Mailchimp
Databricks
Kubernetes
Commercetools
Salesforce
Wordpress
Gpts Commerce Cloud
Im (Twilio, Slack Etc.)
Opentext Identity Manager (Netiq)
Microsoft Active Directory & Entra Id
Ldap

Languages

German

Native

English

Native

French

Intermediate

Education

Oct 2019 - Oct 2021

Otto-Friedrich University of Bamberg

Master of Science, Business Information Systems (IT Security) · Business Information Systems (IT Security) · Bamberg, Germany

Oct 2010 - Oct 2013

The Berlin School of Economics and Law

Bachelor of Arts, Business Administration, Marketing and Business Information Systems · Business Administration, Marketing and Business Information Systems · Berlin, Germany

Oct 2007 - Oct 2010

SAE Institute Berlin & Middlesex University

Bachelor of Recording Arts, Audio Engineering · Audio Engineering · United Kingdom

Certifications & licenses

Certified Identity And Access Manager (CIAM)®

Identity Management Institute

CompTIA

Certified In Cybersecurity (CC)

ISC2

Google Cybersecurity Certificate

Coursera

Artificial Intelligence Micro-Certification (AIC)™️

Product School

Scan Systems With Nmap Skill Path

Codecademy

Scrum Alliance

MB7-849 NAV 2009 Manufacturing

Prometric

Statistics

Experience

Total positions 14

Experience in Information Technology 6 y

Avg length 9 m

Longest experience 3 y 2 m

Global experience

Countries worked in 1 (Germany)

Primary country Germany

Expertise

Recent roles Interim IAM Product Owner (Identity Management), Freelance Senior Product Manager – Partner Service Domain, Freelance Product Consultant – AI & Data

Main industries Information Technology, Advertising, Retail

Main business areas Product Development, Information Technology, Marketing

Qualifications

Highest degree Master

Certifications earned 8

Profile

Member since

September 2021

Last update

November 2025

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Frequently asked questions

Have questions? Find more information here.

Bertrand is based in Berlin, Germany and can operate in on-site, hybrid, and remote work models.

Bertrand speaks the following languages: German (Native), English (Native), French (Intermediate).

Bertrand has at least 11 years of experience. During this time, Bertrand has worked in at least 14 different roles and for 13 different companies. The average length of individual experience is 1 year and 9 months. Note that Bertrand may not have shared all experience and actually has more experience.

Based on recent experience, Bertrand would be well-suited for roles such as: Interim IAM Product Owner (Identity Management), Freelance Senior Product Manager – Partner Service Domain, Freelance Product Consultant – AI & Data.

Bertrand's most recent position is Interim IAM Product Owner (Identity Management) at REWE digital GmbH.

In recent years, Bertrand has worked for REWE digital GmbH, Aroundhome GmbH, Vorwerk SE, zolar GmbH, and Blacklane GmbH.

Bertrand is most experienced in industries like Information Technology, Advertising, and Retail. Bertrand also has some experience in Media and Entertainment, Tourism, and Energy.

Bertrand is most experienced in business areas like Product Development, Information Technology, and Marketing. Bertrand also has some experience in Project Management, Strategy, and Operations.

Bertrand has recently worked in industries like Retail, Tourism, and Energy.

Bertrand has recently worked in business areas like Product Development, Information Technology, and Operations.

Bertrand holds a Master in Business Information Systems (IT Security) from Otto-Friedrich University of Bamberg, a Bachelor in Business Administration, Marketing and Business Information Systems from The Berlin School of Economics and Law and a Bachelor in Audio Engineering from SAE Institute Berlin & Middlesex University.

Bertrand has 8 certificates. Among them, these include: Certified Identity And Access Manager (CIAM)®, CompTIA Security+ ce Certification, and Certified In Cybersecurity (CC).

The availability of Bertrand needs to be confirmed.

Daily rate distribution

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<€800 €800-1200 €1200-1600 €1600+

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Daily rate avg. 963 €

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Median rate 952 €

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 7 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.