Phillipp Bertram
13+Years Experience

Hi, I'm Phillipp

I believe great software isn't just about code—it's about impact. Technology should solve problems, drive innovation, and create real value.

AWS Certified AI Practitioner (AIF-C01)
New
AWS Certified Solutions Architect - Associate (SAA-C03)
AWS Certified Cloud Practitioner (CLF-C01)

About Me.

With years of experience as a Software Engineer and CTO, I've built everything from sleek mobile apps to powerful cloud architectures.

My passion? Turning ideas into high-performance software solutions - especially with Flutter for mobile apps, Golang & Node.js for backend magic, and AWS to keep it all running smoothly in the cloud.

I'm passionate about building not just code, but long-term value. Scalable architectures, maintainable solutions, and impactful products - that's what excites me.

My favorite Tech Stack:

  • 🚀 Mobile Apps - Flutter, Swift, Kotlin
  • 🔗 Backend - Golang, Node.js, scalable APIs
  • ☁️ Cloud - AWS (Lambda, API Gateway, RDS & more)

Great software isn't just about performance - it's about sustainability. I love creating solutions that don't just work today but continue to deliver value in the long run.

  1. Freelancer @self-employed
    Present

    As a freelancer, I am starting on a new chapter in my life, driven by the desire to utilize my experience to help others.

  2. CTO & Supervisory Board member @aerosys

    As the CTO of a pioneering startup developing the world's first digital co-pilot, I oversee the development team, foster a thriving team culture, shape the company's technology vision and make critical tech decisions.

  3. Software Engineer @slashwhy

    Software Engineer in several projects for different sectors.

  4. CTO & Co-Founder @KickOn

    As the CTO of a startup developing a hospitality platform, I oversee the development team, foster a thriving team culture, shape the company's technology vision and make critical tech decisions.

  5. Head of Mobile App Development @LMIS AG

    As Head of Mobile App Development, I lead and inspire a team, oversee team building efforts, and utilize my expertise as a versatile software developer to successfully deliver projects across various sectors, leveraging a wide range of technologies.

  6. Developer & Software Consultant @LMIS AG

My Services

From Concept to Code - Building the Future of Your Product

Mobile App Development

I design and develop innovative and user-friendly mobile apps that don't just look great - they run smoothly, scale effortlessly, and provide an outstanding user experience. With Flutter, I create cross-platform apps that feel truly native on both iOS and Android. Need a fully native solution? No problem - I've got Swift and Kotlin in my toolkit, too.

But a great app is more than just code - it needs a solid architecture, seamless backend integration, and a cloud infrastructure that can scale with your users. That's why I bring my fullstack expertise to the table, ensuring your app isn’t just built, but built to last.

native Apps
Cross-Platform
Flutter
Dart
Swift
SwiftUI
Combine
Rx
Concurrency
Kotlin
Coroutines
Firebase
REST
GraphQL
Android
iOS
Push Notifications
App Store
Play Store
Analytics
CI/CD
Unit Testing
UI Testing
State Management

Cloud Computing

A great app needs a rock-solid backend - fast, scalable, and ready to handle real-world traffic. I design and build cloud-native architectures with AWS, ensuring your backend is not just powerful but also efficient, secure, and cost-effective.

From scalable APIs to event-driven microservices, I prefer to use Golang and Node.js to create scalable, maintainable backend systems that grow with your product. Whether it's serverless with AWS Lambda or a containerized solution, I make sure your infrastructure is built for speed, security, and future scalability.

Amazon Webservices (AWS)
Serverless
Microservices
Docker
IaC
Go
NodeJS
Typescript
REST
GraphQL
Rust
gRPC
Express
MongoDB
PostgreSQL
Redis
CI/CD
Generative AI

Website Development

Fast, scalable, and modern - that's how websites should be. I build high-performance web applications with Next.js and React, combining speed, SEO optimization, and a smooth user experience. Whether it's a dynamic web app, a landing page, or a fully interactive platform, I create solutions that are both functional and future-proof.

With a focus on clean code, reusability, and performance optimization, I ensure your website is not just beautiful but also blazing fast and easy to maintain. Need backend integration? No worries - I connect your frontend seamlessly with Golang, Node.js, or AWS-powered APIs.

React
Next.js
Typescript
Vue
JAMstack
Webpack
Netlify
CMS
Vercel
Turbo
TailwindCSS
Framer Motion
Redux
GraphQL
REST
Node.js
Jest
Cypress
Storybook
Figma
SEO
Analytics
Performance
Accessibility

Tech Consulting - From Idea to Scalable Solution

Sometimes, you don't need more code - you need the right strategy. With years of experience as a CTO & fullstack engineer, I help companies make smart tech decisions, optimize architectures, and scale their products effectively.

Whether youre planning a new app, improving an existing system, or facing scalability challenges, I bring hands-on expertise in mobile development, backend systems, and cloud infrastructure to guide you towards the best solutions.

Project Management
Technology Strategy
Infrastructure Optimization
Technology Decisions

Ready to Get Started?

Whether you’re launching a startup, scaling a software platform, or need strategic tech consulting – I’m here to help.

I thrive on solving complex challenges and delivering tangible results. Let’s work together to turn your vision into reality.