Welcome to my portfolio

Hi, I'm Robert Witzlib

A passionate developer creating beautiful, functional web experiences. Explore my work and get in touch.

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My Portfolio

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01/08

Cabbage Co

A full-featured e-commerce platform specializing in digestive health supplements. Features include product catalog, shopping cart, secure checkout, and subscription management for recurring orders.

Tech Stack

Next.jsTypeScriptTailwind CSSStripePrisma

About Me

Get to know who I am and what drives my passion for development

Hello, I'm Robert!

I'm a passionate web developer with a love for creating beautiful, functional, and user-centered digital experiences. With expertise in modern web technologies, I bring ideas to life through clean code and thoughtful design.

My journey in development started with curiosity about how websites work, and has evolved into a career building applications that make a real impact. I enjoy tackling complex problems and turning them into simple, elegant solutions.

When I'm not coding, you can find me exploring new technologies, contributing to open-source projects, or sharing knowledge with the developer community.

Clean Code

Writing maintainable, scalable, and well-documented code

Design Focus

Creating beautiful interfaces with attention to detail

Performance

Building fast, optimized applications that scale

Collaboration

Working effectively with teams and stakeholders

My Resume

My professional journey and educational background

Download Resume
Oct 2022 - Present

Software Engineer

Optum

Building internal tools, CI/CD pipelines, and healthcare services. Designed Mjolnir for automated test suites and database migrations. Created Clinical Data Service for HIPAA-compliant FHIR data retrieval.

AWSTerraformDockerC# / .NET
May 2020 - Oct 2022

Software Engineer

Change Healthcare

Developed healthcare APIs and led team building mock FHIR server. Implemented breast cancer risk assessment API with Epic EMR integration. Maintained 3000+ automated tests across applications.

C# / .NETFHIRSQLGitLab
Sep 2016 - Aug 2020

B.S. Computer Science

University of Wisconsin - Madison

Bachelor of Science in Computer Science. Coursework included Operating Systems, Algorithms, Data Structures, Databases, and Cybersecurity.

AlgorithmsData StructuresDatabasesCybersecurity

My Skills

Technologies and tools I use to bring ideas to life

Frontend

React95%
TypeScript90%
Next.js88%
Tailwind CSS92%
HTML/CSS95%
JavaScript95%

Backend

Node.js85%
Python75%
PostgreSQL80%
MongoDB78%
REST APIs90%
GraphQL75%

Tools & Others

Git92%
Docker78%
AWS72%
Figma80%
CI/CD75%
Testing82%

Also experienced with

ReduxZustandPrismatRPCVercelNetlifyFirebaseSupabaseJestCypressStorybookFramer Motion

Get In Touch

Have a project in mind or want to collaborate? I'd love to hear from you.

Let's work together

I'm always open to discussing new projects, creative ideas, or opportunities to be part of your vision.

Location

Available Worldwide

Connect with me