Jack den Hertog

Strategic Technology Leader | UX Principal | AI Innovation Expert
The Hague, The Netherlands+31 6 43 74 74 78jack.den.hertog@gmail.com

Executive Summary

A strategic and results-oriented technology leader with principal-level expertise in User Experience (UX) Design, applied Artificial Intelligence, and enterprise systems. He excels at operating at the intersection of product strategy, technical innovation, and user-centric design, translating complex business requirements into intuitive, high-impact applications.

With a proven track record of leading cross-functional teams and pioneering novel AI solutions for global Fortune 500 enterprises (such as Nestlé, Roche, FIFA, Zurich and more), Jack demonstrates a unique ability to drive projects from strategic conception to flawless execution, fostering operational excellence and delivering tangible business value.

His entrepreneurial drive and commitment to continuous innovation are evidenced by his work in founding tech-enabled ventures and providing expert AI consultancy.

Core Competencies

UX & Product Strategy

  • • Principal-level UX Leadership & Vision
    UX concept and technology leading across many customers, including Roche, FIFA, Nestlé, the Dutch Army, and others.
  • • Product & Operations Strategy
    Co-founded and drove strategic decisions for the e-commerce brand 'ready-2 supplements'.
  • • User-Centered Design (UCD) & Research
    Conducted comprehensive user analysis and interviews for the Dutch Army's recruitment platform.
  • • Stakeholder Collaboration & Alignment
    Achieved full stakeholder alignment for the Roche HR portal transition across multiple business units.
  • • Design System Implementation & Management
    Established and governed the design system for the Nestlé IT portal, serving tens of thousands of users.
  • • Wireframing, Prototyping & Journey Mapping
    Designed the 'NOS-Context' news app from concept to prototype, visualizing new user journeys.
  • • Usability Testing & Feedback Loops
    Iteratively designed the Roche HR portals (internal and external facing) based on feedback from multiple user focus groups.

AI & Technical Development

  • • Generative AI & LLM Application Development (OpenAI, Gemini)
    Built a Shopify translation tool from scratch using both OpenAI and Gemini APIs.
  • • AI-driven Automation & Process Optimization
    Cooperating with 'turn.one' to build tailored AI automations and provide AI consultancy to businesses.
  • • AI Prompt Engineering & RAG
    Engineered a robust, large-data handling Python tool with advanced prompt engineering and self-revalidation.
  • • Python Development
    At the dawn of 'real' AI (around 2022), developed a custom large data solution with OpenAI in 2023 in Python to automate data validation and correction for Nestlé.
  • • ServiceNow Platform & AI Tools
    Led the GenAI dev team in implementing and evaluating ServiceNow ITSM PRO+ capabilities for DXC.
  • • HTML, CSS, JavaScript
    Coded and visualized multiple sites, like this portfolio, Avalon supplements (upcoming).
  • • Figma
    Having as many years of experience with Sketch, Figma, and such as how old they are.

Leadership & Collaboration

  • • Global AI/UX Leadership
    Serving as the global AI/UX lead of DXC, driving strategic initiatives across international teams.
  • • Team Leadership & Mentorship
    Guides and leads the GenAI development team at DXC's Center of Excellence.
  • • Agile & Scrum Methodologies
    Currently fulfilling Scrum Master role, applying Scrum principles to manage complex design and development projects.
  • • Cross-Functional Project Management
    Orchestrated the massive Roche HR portal project, coordinating between stakeholders, users, and developers.
  • • Entrepreneurial Initiative & Business Acumen
    Co-founded two supplement brands, managing branding, product formulation, and AI-driven business automations.

Professional Experience

DXC Technology

2019 – Present

AI Developer & UX Principal Advisor

Client: Nestlé

Project: Global IT Portal Transformation

Jul 2023 – Apr 2024

As the Principal UX Advisor for Nestlé's global IT portal, served as strategic design leader for a platform serving tens of thousands of employees worldwide.

Orchestrated efforts between the core IT portal development team and dedicated Nestlé UX team, bridging complex technical requirements with intuitive, accessible design to boost user satisfaction and operational efficiency across Nestlé's vast IT landscape.

Technical Innovation: Single-handedly developed a custom OpenAI solution from the ground up using Python, engineered specifically to address critical data integrity challenges within the employee center's knowledge articles and service catalogs.

This bespoke AI tool dramatically improved accuracy, reliability, and overall usability of information provided to employees, significantly boosting portal effectiveness and user engagement.

UX Expert & Brand Strategist

Client: Sonova

Project: Sonova Employee Center Enhancement

Sep 2023

Led UX Expert role for the Sonova Employee Center, ensuring perfect alignment with Sonova's corporate identity. Meticulously directed alignment of all digital assets—colors, logos, typography, imagery, and interactive elements—with official branding guidelines. Provided strategic guidance on concrete methods to elevate portal user-friendliness and intuitive navigation, creating a more cohesive and positive user journey for all employees.

Technical Lead, GenAI Center of Excellence

Role: Internal DXC Strategic Initiative

Project: Shaping DXC's AI Strategy & Offerings

Sep 2024 – Apr 2025

Led the GenAI development team while guiding design and implementation of novel AI use cases leveraging ServiceNow ITSM PRO+ capabilities. Responsibilities spanned full product lifecycle: from ideating high-value use cases and leading customer engagement sessions, to ensuring robust, technically sound solutions with superior user experiences. Innovative concepts developed under this leadership directly shaped DXC's corporate AI strategy and competitive positioning.

Employee Representative & Advocate

Role: Member, Works Council

Project: Internal Employee Representation

Jan 2022 – Jan 2023

Elected member of the Works Council, representing colleague interests and well-being within DXC's corporate structure. Acted as vital communication bridge between workforce and senior management, ensuring employee perspectives were heard during key organizational decisions. Actively participated in consultations, contributed to policy discussions, and championed initiatives for improved work environment.

UX Evangelist & Internal Strategist

Client: DXC Technology (Internal Initiative)

Project: Elevating Internal UX Awareness & Adoption

Jun 2021 – Sep 2021

Spearheaded strategic initiative to embed design thinking within the organization. Developed and led internal campaign educating development teams, project managers, and stakeholders on user-centered design principles. Created compelling presentations, best-practice documentation, and case studies demonstrating how UX integration leads to superior outcomes, reduced rework, and increased client satisfaction.

UX Design Lead, Real World Data Initiative

Client: Roche

Project: Roche Real World Data (RWD) Knowledge Hub

May 2021 – Sep 2021

Appointed UX Design Lead for Roche Real World Data initiative, creating a centralized digital hub for disseminating complex insights from global Diagnostics and Pharmaceuticals projects. Orchestrated entire portal experience from information architecture to final interface design, translating multifaceted scientific data into intuitive format for researchers, clinicians, and business stakeholders.

Lead UX Professional & Portal Architect

Client: Roche

Project: Enterprise HR Transformation & ServiceNow Implementation

Feb 2020 – Aug 2021

Lead UX professional for end-user portal during Roche's massive HR services transition from Neocase to ServiceNow. Architected entire user-facing experience, achieving strategic alignment with senior HR leaders, technical teams, and diverse end-user groups from various departments.

Instituted and facilitated multiple user focus groups, embedding iterative, feedback-driven methodology at project's heart. Portal was meticulously crafted based on real user needs, designing entirely new interfaces and significantly customizing ServiceNow components to create a powerful, bespoke solution beyond standard implementation.

UX Design Lead, HR Professional Hub

Client: Roche

Project: Roche Personnel & Compliance (P&C) Tech Portal

Mar 2021 – Aug 2021

Led design of specialized sub-portal exclusively for HR professionals within Roche. Created "Personnel & Compliance Tech Portal" as professional command center, empowering HR department with dedicated tools for workflow management and service delivery monitoring. Designed sophisticated, tool-oriented interface enabling efficient access to services and integrated dashboard for key service completion statistics.

UX/UI Designer, Project Foundation & Discovery

Client: Roche | Duration: Jan 2020 – Mar 2020

Led strategic UX foundation for Roche HR transformation through deep discovery, research, and stakeholder alignment.

Multiple Additional Projects

Duration: 2019 – 2020

Led various UX/UI initiatives including internal event platforms, mobile app concepts, portal enhancements, and process optimization tools.

Maximum Alliances B.V. (now Radancy)

Strategic UX/UI Researcher & Designer

Client: Werken bij Defensie (The Dutch Ministry of Defence)

Project: National Military Recruitment Platform Overhaul

Sep 2016 – Sep 2018

Spearheaded strategic research and design to address critical business challenge for the Dutch Army: improving low conversion rates and optimizing escalating recruitment costs. Conducted comprehensive discovery phase with full forensic analysis of existing digital recruitment channels and in-depth interviews with key personas.

Developed and visualized new, holistic concept that radically simplified the traditionally opaque application process. Success was so significant it garnered unsolicited interest from other Dutch governmental bodies, with proposed mobile application slated for full integration into the national recruitment environment.

ENTREPRENEURIAL VENTURES

Co-Founder & Head of Product, Supplement Brands

Ongoing

As a co-founder, Jack oversees a portfolio of specialized e-commerce supplement brands, directing strategy, product development, and brand experience in close collaboration with a team of medical professionals.

Avalon Supplements: The overarching firm through which he manages strategic and operational initiatives across the brand portfolio.

Ready-2 (www.ready-2.com): The flagship performance-focused brand. For Ready-2, he leads the brand identity, packaging design, and digital experience. He also architected and built a sophisticated AI-powered site-wide translation system for its Shopify store, leveraging OpenAI and Gemini APIs to manage large-scale data processing and enhance its international reach.

Evia: A new brand currently in development, specifically focused on addressing female hormonal health and PMS. This venture showcases his ability to identify new market needs and develop highly targeted, user-centric product lines.

AI & UX CONSULTANCY

Co-Founder & AI / UX Consultant

Company: turn.one

Ongoing

Alongside a colleague, Jack co-founded turn.one, a boutique consultancy focused on building bespoke AI automations and providing high-level strategic guidance on AI and UX to businesses.

Key Activities:

Custom AI Automation: Designs and develops custom AI-powered solutions to solve specific client challenges, streamline operations, and unlock new efficiencies.

Strategic AI Consulting: Acts as an external AI strategist for companies that need to navigate the complexities of modern AI integration. In a recent engagement for abfresearch.nl, he was commissioned to conduct a full strategic exploration of their business to identify all high-impact opportunities where post-2023 LLM-based tools and generative AI software could be embedded into their research and business processes.

Creative AI Development: Utilizes IDE AI tools to rapidly build and deploy beautiful, functional web applications and prototypes from scratch, demonstrating the speed and power of modern creative AI development.

Key Project Highlights

AI-Powered Quality Guardian - Nestlé

Architected custom AI solution using OpenAI API to validate knowledge base integrity across thousands of articles, implementing human-in-the-loop verification and achieving measurable improvements in data accuracy and user satisfaction.

HR Portal Transformation - Roche

Led end-to-end user experience design for ServiceNow-based HR portal, conducting global user research and focus groups to ensure seamless transition for diverse workforce, resulting in high adoption rates and positive stakeholder feedback.

GenAI Center of Excellence - DXC Technology

Established and led technical strategy for enterprise AI initiatives, developing innovative proof-of-concepts that shaped official AI strategy and directly led to three new client engagements focused on AI implementation.

Education & Certifications

Communication and Multimedia Design, Bachelor's Degree

Rotterdam University of Applied Sciences

Sep 2012 – Sep 2018

A comprehensive degree program that provided a strong, multidisciplinary foundation in the end-to-end process of digital product creation. Core skills and competencies developed during this education include:

  • User Research: Identifying user needs and behaviors
  • Concepting: Developing innovative ideas and solutions
  • Wireframing: Structuring information and user flows
  • Prototyping: Creating interactive models for testing and validation
  • Visualising (User Interfaces): Designing compelling and intuitive interfaces
  • Coding: Implementing designs into functional code
  • Marketing: Understanding product positioning and launch strategies
Key Achievement: In the final years of his study, he designed a revolutionary recruitment application for the Dutch Army, demonstrating an advanced ability to solve complex user experience challenges for a major governmental organization.

CS50's Introduction to Artificial Intelligence with Python

Harvard University (edX)

Apr 2023 – ongoing

An intensive, hands-on program focused on the theoretical foundations and practical applications of modern artificial intelligence. The curriculum provided deep insights into the core mechanisms that drive intelligent systems. Key areas of study and application included:

  • • Mastering graph search algorithms for complex problem-solving
  • • Implementing reinforcement learning models
  • • Applying fundamental machine learning principles
  • • Architecting and designing intelligent systems from the ground up
  • • Building and integrating AI functionalities directly into Python programs

CS50 - Introduction to Computer Science

Harvard University (edX)

Ongoing Professional Development

A deep engagement with Harvard's largest and most comprehensive introductory course on computer science. This program provides both theoretical knowledge and practical, hands-on experience across a wide range of essential programming languages, including:

  • C
  • Python
  • SQL
  • JavaScript
  • CSS
  • HTML

Minor: User Interface and Experience Design

Rotterdam University of Applied Sciences

Jul 2014 – Jan 2015

A specialized, project-based program focused on solving a real-world UX challenge for the NOS (Nederlandse Omroep Stichting), the Dutch national public broadcasting foundation.

The Project Goal: To fundamentally improve the user experience and engagement of the national mobile news app and its corresponding website, www.nos.nl.
Process and Contribution: In this project, Jack was responsible for conceiving and visualizing entirely new approaches to news consumption. He introduced innovative features such as 'related news articles', 'topic-based timelines', and 'contextual content layers' to provide users with deeper insights. His work progressed from initial concepts, through detailed wireframes and mockups, to a fully-realized proposal for a new app, aptly named 'NOS-Context'.
Tangible Impact and Outcome: The proposal was received with great enthusiasm by both test users and the NOS organization, as it offered a more intuitive and valuable way to present and consume news. Critically, the project's success was validated over the long term: nearly all of the core functionalities Jack designed were subsequently integrated into the official NOS mobile application. This includes now-standard features like:
  • • Visually segmenting articles based on topics
  • • Displaying articles based on reading history, location, and other user data
  • • Showing related articles beneath active content

Professional Certifications

ServiceNow Platform Expertise

2024

  • • ServiceNow Micro-Certification - Configure the CMDB (Apr 2024)
  • • ServiceNow Micro-Certification - CMDB Health (Apr 2024)

2023

  • ServiceNow Suite Certification - ITSM Professional (Sep 2023)
  • ServiceNow Certified Implementation Specialist – IT Service Management (Aug 2023)
  • • ServiceNow Micro-Certification - Performance Analytics (Sep 2023)
  • • ServiceNow Micro-Certification – DevOps Change Velocity (Sep 2023)
  • • ServiceNow Micro-Certification - Virtual Agent (Sep 2023)
  • • ServiceNow Micro-Certification - Predictive Intelligence (Sep 2023)
  • • ITSM Implementation (Jul 2023)
  • • ITSM Fundamentals (Jul 2023)

2022

  • • ServiceNow Micro-Certification - Service Portal (Feb 2022)

Platform Version Expertise (Delta Exams)

  • • ServiceNow Delta exam - Rome (Jan 2022)
  • • ServiceNow Delta exam - Quebec (Jun 2021)
  • • ServiceNow Delta exam - Paris (Jan 2021)
  • • ServiceNow Delta exam - Orlando (Apr 2020)

Additional Professional Development

Leadership & Process

  • • Professional Scrum Master Training (Feb 2020)
  • • IT4IT Foundation - The Open Group (Jun 2019)

Specialized Training

  • • UX Masterclass - User Experience Design (Oct 2019)
  • • ServiceNow HR Fundamentals (Jan 2020)
  • • ServiceNow HR Implementation (Jan 2020)
  • • ServiceNow Service Portal Fundamentals (Jun 2019)
  • • ServiceNow Fundamentals (May 2019)

Total: 22+ professional certifications and specialized training programs, with particular depth in ServiceNow platform architecture, ITSM implementation, and enterprise AI solutions. Continuous platform expertise maintained through regular delta certifications and emerging technology training.

Technical Skills & Proficiencies

Leadership & Strategy

  • LeadershipExpert
  • Business ConceptingExpert
  • Agile MethodologiesExpert
  • Scrum FrameworkExpert
  • IT4ITIntermediate

AI & Data Science

  • AI Prompt EngineeringExpert
  • Modern AI MethodsExpert
  • OpenAI Developer PlatformExpert
  • Retrieval-Augmented Generation (RAG)Experienced
  • Natural Language Understanding (NLU)Experienced
  • Google AnalyticsIntermediate

UX & Design

  • User Experience (UX) DesignExpert
  • User Interface (UI) PrototypingExpert
  • FigmaExpert
  • AI Image & Video Generation (Sora, Ideogram)Expert
  • Adobe PhotoshopExperienced
  • Adobe InDesignExperienced

Technical & Development

  • ServiceNow AI Agent StudioExpert
  • ServiceNow Now Assist Skill KitExpert
  • JavaScriptExperienced
  • HTMLExperienced
  • CSSExperienced
  • jQueryExperienced
  • CIntermediate
  • Microsoft Visual StudioIntermediate

Operating Systems & Platforms

  • macOSExpert
  • WindowsExperienced
  • Microsoft Office SuiteExperienced

Additional Information

• Open-source contributor

• AI ethics advocate

• Tech community engagement

Languages

Primary Languages

DutchNative
Spoken: Native • Written: Native
EnglishC1
Spoken: C1 • Written: C1

Additional Languages

SpanishA1
FrenchA1
NorwegianA1
JapaneseA1
Language Proficiency Levels: A1 Beginner • A2 Elementary • B1 Intermediate • B2 Upper Intermediate • C1 Professional • C2 Fluent