HEY THERE, I'M

Jerry
Geerts

Full-Stack Software Engineer

React • Flutter • Spring Boot • DevOps

Built real customer apps at Albert Heijn Online → Climbed volcanoes around Asia → Ready for my next challenge

Mount Rinjani Summit
Mount Rinjani Summit

About Me

I'm a passionate full-stack software engineer with 5+ years of experience building production applications with React, Flutter, Sprint Boot, and DevOps tools. I graduated from Hogeschool van Amsterdam with an average of 8, completing multiple 800-hour internships along the way.

At Albert Heijn Online's Tech Labs, I built customer-facing applications serving millions of users, handled deployments, improved infrastructure reliability, and mentored junior developers on innovation projects from concept to prototype.

After five years of shipping code, I took a sabbatical to travel the world — visiting 11+ countries across Asia, summiting volcanoes, and gaining fresh perspectives. Now I'm back in the Netherlands, fully recharged and excited to contribute to ambitious teams building impactful products.

Full-Stack

Frontend, backend, mobile — I build complete solutions

Mentoring

Guided interns and juniors through real projects

World Traveler

11 countries, endless perspectives

Work Experience

Personal Sabbatical - World Travel

2024 - 2025
  • Took time to travel the world, gain new perspectives, and return fully recharged for software challenges

Shopify / Hydrogen Developer

Bold Commerce
JAN 2025 - APR 2025
  • Built and customized with Hydrogen (React-based) and Liquid templating

DevOps Software Engineer

Albert Heijn Online - Tech Labs
JUL 2020 - SEPT 2024
  • Built customer-facing applications with Flutter, React & Kotlin
  • Handled deployments and improved reliability/infra
  • Mentored interns on innovation projects from concept to prototype

DevOps Engineer - Internship

Albert Heijn Online - Tech Labs
FEB 2020 - JUL 2020
  • Built React, React Native & Kotlin solutions for customer issues
  • Worked on projects improving app performance and UX

React Developer - Internship

ByDeHand
SEPT 2017 - FEB 2018
  • Developed a responsive web app using React and SCSS

Web Developer - Internship

WoWMedia
SEPT 2016 - FEB 2017
  • Built client websites with designers (HTML, CSS, JavaScript)

Featured Projects

🗺️

Commercial Delivery Areas Map Interface Research & Prototype

Graduation thesis researching a map interface for Albert Heijn Online to manage commercial delivery areas in Europe. Analyzed postal code system limitations, defined commercial areas, compared frameworks (Mapbox, Google Maps, Leaflet) using ISO 25010 via interviews and reviews. Recommended Mapbox for performance, cost, and integration. Developed a React web app prototype to interactively visualize and simulate delivery zone creation and management.

ReactMapbox GL JSJavaScript/TypeScriptGISResearchISO 25010Spring Boot
📱

AH Maps

Built a native Android indoor navigation app in collaboration with Virtual Stores, a Swedish retail technology partner focused on digital wayfinding and store-level mapping. Designed and developed an intuitive mobile experience that lets users see their precise position inside large stores, search for specific products, and dynamically generate optimized routes to navigate efficiently between them. Bringing GPS-style indoor navigation to retail environments where traditional GPS doesn’t reach.

KotlinAndroidGoogle Maps SDKIndoor Positioning
🧾

AH ScanMijnLijst

Developed a cross-platform mobile application that converts handwritten grocery lists into a digital format using Microsoft OCR technology. Users could scan physical grocery lists, automatically extract text, and seamlessly transfer items to their Albert Heijn Online shopping cart. The project focused on bridging offline shopping habits with modern digital retail experiences through intelligent text recognition and smart product mapping.

React NativeMicrosoft Azure OCRJavaScriptSpring Boot
🤖

Explainable Fake News Detector

Collaborated in a team of four on an explainable AI project for Responsible AI Lab during my Applied Artificial Intelligence minor. Researched datasets and fetched tweets via Twitter API to build a combined dataset. Analyzed user features with visualizations, tested standard ML models, experimented with XGBoost and CatBoost on categorical features, applied SHAP for model explanations. Built a full-stack demo with Flask backend and React frontend to showcase predictions with explanations.

PythonXGBoostCatBoostSHAPFlaskReactMachine LearningExplainable AI
📊

Cross-Platform App Development Research

Conducted an individual research report investigating whether Albert Heijn should replace native app development with cross-platform frameworks for mobile apps. Analyzed frameworks like React Native, Flutter, and Ionic, evaluating pros, cons, performance, and integration. Recommended Flutter for its near-native speed and ability to import into existing projects, based on systematic source analysis and structured subquestions.

ResearchAnalysis
🎮

Amsta Korsakov Movement App

Built a button table application for Amsta, a care institution, to encourage physical activity among Korsakov patients through interactive games. The 1.5-meter wide table featured five buttons for playing various games. Collaborated with a team of four students using SCRUM methodology, handling diverse tasks including socket connections and server implementation to bridge software engineering and technical informatics components.

JavaScriptSocketsSCRUM

Technical Skills

Frontend & Mobile

⚛️React
📱React Native
💙TypeScript
🦋Flutter
🟨JavaScript
💅SCSS
🤖Android
🐘PHP

Backend & DevOps

🟢Node.js
🎨Kotlin
Java
🍃Spring Boot
🗄️SQL
🐍Python
🔗GraphQL
🧪Flask
🟣.NET
🔥Firebase

Tools & Other

🐳Docker
🔀Git
⚙️DevOps
🔄CI/CD
☁️Google Cloud
🚀GitHub Actions
🏃Agile
👨‍🏫Mentoring

What People Say

Testimonials from colleagues and mentees

"

"Jerry quickly picks up new frameworks and languages, delivers high-quality code, and actively contributes innovative ideas during brainstorming sessions. He works independently while also effectively explaining concepts to team members, making him a valuable asset to any project."

👨‍💻
Senior Developer
Albert Heijn Online
"

"Jerry was highly motivated throughout the project and naturally stepped into a leadership role when needed. He quickly developed a strong understanding of the AI concepts we were working with, which helped the team find effective solutions to complex problems. His ability to propose alternative approaches often helped us resolve challenges efficiently."

👨‍💻
AI Project Teammate
Collaborative AI Development Project
"

"Jerry has extensive experience with mobile applications and rapidly masters new techniques. He's always ready to provide advice and comes up with helpful suggestions when the team encounters challenges."

👨‍💻
Software Engineer Intern
Albert Heijn Online
Available for New Opportunities

Ready to Build
Something Amazing?

I'm currently looking for full-stack or DevOps roles. Let's connect and discuss how I can contribute to your team.

Download CV
Based in Zaandam, NL
Open to Remote
Full-time or Contract
Jerry Geerts

Full-Stack Software Engineer passionate about building impactful products with modern technologies.

Quick Links

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