Hi! 👋 I'm Maxim Vellinga

I'm a Design Engineer at maximized.studio, where I build engaging apps that convert. As a strategic partner at wecatalyze.design, I collaborate on building apps for both SMBs and enterprise, or help out with front-end, Mendix, and UI work.

Over the years I've built digital solutions in finance, healthcare and construction. I always start by understanding how people actually use a product and what the business is trying to achieve.

I like to validate ideas fast, build design systems that scale, and when it fits, use a bit of neuromarketing to keep people engaged.

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My own products

Millstream

A single source of truth for your team, clients and AI agents.

built for: studios juggling clients, projects and agents
stack: Next.js · Supabase · Postgres · MCP

Clients work in their own projects: board, content, files and hours, while rates and the CRM stay out of view. No more status updates by email.
Opens on what needs you first: a client left waiting, a ticket stuck in a lane, a month of hours to review. Critical first, every row linked to the fix.
Your AI agent works with your rights and no more, records every change, and can propose changes you approve before they land.

Visit the site

Hydrately

A free hydration tracker that gives you control and insight: your own drinks, portions, widgets and reminders, and a clear view of your pace and habits.

built for: people who want more control and insight into their hydration, the easy way
stack: SwiftUI · Jetpack Compose · Rive · HealthKit

Your own drinks, portions, widgets and reminders, synced with Apple Health or Health Connect.
The progress bar shows whether you're ahead or behind for this time of day, not just the distance to your goal.

Visit the site

What I do

Front-end design

Distinctive interfaces in React and Next.js, from Figma to production.

Design systems

Token-based component libraries that keep design and code in sync.

Mendix development

Certified Advanced Developer, focused on user experience.

AI automations

LLM features and n8n workflows that run in production.

AI training

Hands-on sessions for teams that want to build with AI tooling.

Gamification

Engagement design and interactive motion, through my studio. maximized.studio

Work experience

Maximized Studio

Current

2024 - current

My own studio, focused on SMBs. I design and build distinctive apps, custom tools and Rive-powered UI animations. Because I handle discovery, design and code myself, ideas ship fast and come out polished.

Highlights

Shipped Rive-powered UI animations across multiple production apps
End-to-end delivery for SMB clients, from discovery to launch
Reusable design system + animation kit that scales across projects

WeCatalyze

Current

2025 - current

As strategic partner I help enterprises ship reliable Mendix, UI and front-end work. Sometimes that means modernizing and hardening an existing platform, sometimes building a new tool from scratch. Either way I aim for a better user experience and more structure in complex workflows.

Highlights

Strategic partner for enterprise UI & Mendix engagements
Mix of platform hardening and greenfield tooling
Bridged design, front-end and back-office concerns on every brief

BS&F

WeCatalyze

2025

Stepped in as interim to get the platform through a DigiD audit. Made the styling and CSS robust enough to meet the compliance standards, modernized the back-office page structure and used the moment to sharpen the end-user experience, including a mobile-friendly flow for adding a Stadspas.

Highlights

Passed the DigiD audit on the first review
Rebuilt styling & CSS to meet compliance + accessibility standards
Mobile-friendly Stadspas request flow shipped alongside the audit work

Zon & Woning

WeCatalyze

2026

Built a portal that reads incoming emails and drafts fitting replies on the spot. It has easy blacklist rules, a manageable knowledge base, and a queue with direct in-place editing, so a noisy inbox turns into a fast, controllable workflow.

Highlights

AI-drafted replies for incoming emails, straight from the queue
Blacklist rules + knowledge base manageable by non-developers
Inline editing turned a noisy inbox into a controllable workflow

AVM

WeCatalyze

2026

Built a planning tool that lets schedulers plan projects across teams and configure each team day by day. Replaced spreadsheet juggling with a clear, drag-friendly week view that holds up under real-world planning chaos.

Highlights

Replaced spreadsheet planning with a drag-friendly week view
Per-team day-by-day configuration without losing the project overview
Built to absorb last-minute swaps without breaking the schedule

Axians

2022 - 2025

A hybrid role: front-end development plus UX leadership, across enterprise applications in both full-code and Mendix environments. I helped align the processes around financial audits and ESG compliance, which made those workflows faster and a lot less error-prone.

Highlights

Hybrid front-end + UX-lead role across multiple enterprise platforms
Launched several scalable platforms into production
Aligned financial audit + ESG processes into transparent workflows

CVC DIF

Axians

2025

Developed and launched a scalable investment platform. It pulls the financial audit and ESG compliance processes into one place, so teams spend less time on manual checks and keep a better grip on compliance.

Highlights

Scalable investment platform launched into production
Audit + ESG compliance baked into day-to-day workflows
Clearer insights and fewer manual errors across teams

Van Schie

Axians

2022 - 2025

Co-developed apps that digitized paper workflows for on-site and office use. Orders and inspections now have a real-time status that clients can follow too.

Highlights

Digitized paper-based inspection & order-picking workflows
Real-time status visible to office and on-site teams
Client-facing transparency on order and inspection progress

Froot

Axians

2022 - 2025

Built a customer portal where companies personalize and manage their recurring fruit deliveries themselves, so changing an order no longer takes a call or an email.

Highlights

Self-service portal replaced phone & email order changes
Recurring delivery personalization without contacting support
Lower support load and a stickier customer relationship

“Maxim is a dedicated UX Lead who truly listens to client needs and turns them into creative solutions. With his proactive mindset and willingness to go the extra mile, he delivers thoughtful, well crafted UX designs. Maxim is a great asset and I can highly recommend working with him.”

Angela van den Hudding

Manager · Kenmerc

“It was a great experience working with Maxim! For about a year, we worked together weekly on various projects. Maxim is creative and always thinks along in finding solutions. He is accurate, reliable, and always keeps his commitments. I can wholeheartedly recommend Maxim for new projects and assignments!”

Kitty Egberts

Process Manager · Ecclesia

Certificates

verified

Professional Scrum Master I (PSM I)

Scrum.org

verified

Mendix Advanced Developer

Mendix

Frequently asked questions

I'm a design engineer with 6+ years in front-end and 4+ years building on Mendix. I work as a hybrid of UX/UI designer and front-end developer, so I can take a product from concept and design all the way through to production code. I've delivered solutions across finance, healthcare and construction, often on enterprise platforms involving financial audits, ESG compliance and complex workflows.

Still have a question? Get in touch and I'll get back to you.

Let's connect

Got a project in mind or just want to chat? I'd love to hear from you.

Email Me