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Erik Waterloo

Senior Full Stack Engineer | CTO as a Service

Remote aus Berlin

  • 52.524932
  • 13.407032
  • Unverbindlicher Tarif 800 € /Tag
  • Berufserfahrung > 7 Jahre
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Dieser Freelancer hat angegeben, ab dem 17.4.2023 verfügbar zu sein

Bis zum 17.4.2023

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Standort und Mobilität

Berlin, Deutschland
Nur remote
führt Projekte hauptsächlich remote aus


  • 1 bis 3 Monate
  • 3 bis 6 Monate
  • ≥ 6 Monate
  • Banken & Versicherungen
  • Bildung & E-Learning
  • E-Commerce
  • Digitalagenturen & IT-Consulting
  • Internet der Dinge
+4 andere
  • 1 Mitarbeitende
  • 2 - 10 Mitarbeitende
  • 11 - 49 Mitarbeitende
  • 50 - 249 Mitarbeitende


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Geprüfte E-Mail-Adresse


  • Deutsch

    Muttersprachlich oder zweisprachig

  • Englisch



Fähigkeiten (18)

Erik in wenigen Worten

I have a hands on approach and thrive in fast paced environments. Due to my entrepreneurial experience I have a strong focus on the product and business while creating evolving architectures and leading the implementation of them.

I offer the following services
- Interim CTO
- Software / Solution Architecture
- Full Stack Software Engineering
- Tech Recruitment Support

Projekt- und Berufserfahrung


CTO & Co-Founder

Berlin, Germany

Januar 2022 - September 2022 (8 Monate)

Tech Stack: React, React Native, React Native Web, Typescript, Terraform, GraphQL, NX, Docker, MySQL, Mixpanel, Ejabberd, Firebase Auth, AWS Achievements:
• Architected and developed multiple MVPs
• Set up a scalable chat solution and server-less backend
• UX and Product design
• Deep dive into the startup methodology
• Set up a NX monorepo sharing about 70% of UI code between web and react native • Product and Logo Design


CTO & Co-Founder  - Als Freelancer

San Francisco, CA, USA

Januar 2021 - März 2022 (1 Jahr und 2 Monate)

Tech Stack: React, React Native, Ionic, Jest, Forest Admin, Typescript, Terraform, GraphQL, Docker, MySQL, Firebase Auth, Serverless Framework, AWS Achievements:
• Launched a fully working MVP within 3 months after MVP definition (using stripe connect at the time)
• Architected and developed a multisided platform including a react native kiosk app, an ionic tip- receiver app, a react.js customer admin dashboard and a react.js tip-giver app as well as the serverless backend
• Integrated two payment providers (Stripe & Square), and the silicon valley bank for payouts
• Direct integration of Apple Pay and Google Pay
• Supported rapid changes of the product with an flexible architecture, designed to adapt and keep the burn rate low
• Carried the technical development for 15 months from idea to crowd- & seed funding as a single engineering resource
• Well executed handover to the software team now handling the platform
• Worked in an international team supporting the silicon valley sales team while being based in Berlin

Colorfy GmbH

Head Of Software

Berlin, Germany

Juli 2018 - Juli 2020 (2 Jahre)

Main Tech Stack: React Native, React, Google Home, Amazon Alexa, Azure, AWS, Serverless Framework, Terraform, PubNub, Java, Swift, UML, Typescript, Node.js Achievements:
• Lead and grew the software team to 7 members
• Introduced QA processes and build CI pipelines
• Introduced agile / scrum processes
• Solution Architecture for multiple projects (IoT devices, mobile apps and web platforms) from 0 to release
• Orchestrated the departments to work closely together for efficiency and the best possible product
• Managed relations with IaaS and SaaS providers and the client technical stakeholders
• Lead the integration of a multitude of SaaS providers into multiple projects

Colorfy GmbH

Team Lead & Solution Architect

Juli 2017 - Juni 2018 (11 Monate)

Tech Stack: React Native, Google Home, Amazon Alexa, Azure, Azure Functions, Serverless Framework, Terraform, PubNub, Java, Swift, UML Achievements:
• Refined requirements together with project management and the client
• Solution Architecture for for IoT devices
• Implemented encryption for a messaging layer in react native
• Implemented an Amazon Alexa and Google Home prototype
• Passed the security audit without major flaws
• Fine tuned react native WiFi modules for Android and iOS with native code
• Extensive documentation for solution architecture of IoT products


Project Manager

Juni 2015 - Oktober 2015 (4 Monate)

• Delivered multiple web site projects on time and budget
• Project management for a crowdfunding campaign gathering over 1 million EUR

Krüger & Müller GbR

CTO & Co-Founder

Berlin, Germany

Oktober 2012 - Juli 2014 (1 Jahr und 9 Monate)

Online Marketing for Insurances wich later evolved to https://www.transparent Tech Stack: HTML, CSS, Wordpress Achievements
• Built custom SEO tools and browser plugins
• Grew the team to 3 employees
• Managed to rank top 3 for the disability insurance keyword in Germany AG

Student Employee

Berlin, Germany

April 2011 - April 2012 (1 Jahr)

Tech Stack: GWT, JavaScript, PHP Achievements:
• Delivered a production ready insurance calculator
• Delivered a flash game for marketing use

On-Ergy GmbH


87459 Pfronten, Germany

Juni 2008 - August 2008 (2 Monate)

Tech Stack: Java Achievements:
• First contact with enterprise software development
• Learned OOP programming with Java



87629 Füssen, Germany

Februar 2006 - Juli 2006 (5 Monate)

Ausbildung & Abschlüsse