Freelancer profile translated to English.

Description

I am a Full-Stack Developer and Integration Specialist, supporting companies in building scalable, reliable, and high-performance digital systems. My focus is on four core areas: API integration, web and SaaS development, e-commerce engineering, and AI integration and automation. I develop practical solutions that automate processes, improve data quality, and enable sustainable growth.

A central part of my work is the development of complex API integrations. I connect systems, automate workflows, and process large amounts of data using REST and SOAP APIs, ETL processes, and stable synchronization. Among other things, I have integrated e-commerce platforms with payment providers like Stripe, automated CRM processes in HubSpot, and established reliable connections to warehouse management systems.

As a Full-Stack Engineer, I develop complete web applications and SaaS platforms. With React and Next.js, I create modern frontends, while Laravel or Python deliver scalable backends. I work according to best practices such as CI/CD, Clean Architecture, and Docker, which ensure fast deployments and long-term maintainability.

Additionally, I specialize in AI integration and automation. I implement AI-powered systems such as chatbots, agents, and analysis tools that are integrated into existing platforms and help companies optimize processes, support, and decision-making.

In e-commerce, I work intensively with Shopify, Magento, and WooCommerce – from complete shops to custom modifications, apps, integrations, and performance optimization.

I combine technical expertise with a clear understanding of business requirements, delivering structured, scalable, and maintainable solutions. I work with startups, companies, and agencies to integrate systems, automate processes, and develop digital products.

Industry field of expertise

Languages

German
Native or bilingual

Workplace preferences

Remote only

Primarily works remotely

TechVibe Solutions
Senior Web Architect / E-commerce & API Solutions
August 2018 - December 2020 (2 years and 4 months)
Berlin, Germany
I worked as a Senior Web Architect, leading a team of developers while overseeing the architecture of both web solutions and e-commerce platforms. My responsibilities included the design and architecture of scalable API systems, integration of third-party services, and optimization of complex online shop systems. Furthermore, my role encompassed selecting appropriate technologies, ensuring adherence to best practices, and mentoring junior developers.
E-commerce API Integration API REST AI Integration
DigitalWave AG
Full-Stack Developer / E-commerce Solutions Architect
July 2017 - July 2018 (1 year)
Frankfurt am Main, Germany
At DigitalWave AG, I transitioned into the role of Full-Stack Developer and E-commerce Solutions Architect, where I expanded my expertise into API integration and e-commerce development. I designed and implemented online shops on platforms such as Shopify and WooCommerce, integrating payment gateways, CRM systems, and ERP solutions. Additionally, I began working on RESTful APIs and SOAP for backend integrations to enable seamless communication between different systems.

This position allowed me to collaborate closely with clients to optimize their online sales processes, enhance user interfaces, and integrate complex systems into their websites to streamline operational workflows.

Responsibilities:
Development of full-stack web applications using JavaScript (React, Node.js) and Python in the backend.
Integration of RESTful APIs and SOAP services for payment processing, CRM, and external systems.
Design and development of e-commerce websites on Shopify and WooCommerce, including payment and shipping integration.
JavaScript, HTML5, CSS3, PHP, MySQL API REST E-commerce React.js & Next.js API Integration
TechSolutions GmbH
Web Developer
June 2015 - May 2017 (1 year and 11 months)
Berlin, Germany
At TechSolutions GmbH, I worked as a Web Developer with a focus on creating and maintaining dynamic websites for various clients. During this time, I further developed my skills in HTML, CSS, JavaScript, and PHP, creating responsive websites and web applications. I worked closely with a team of designers and project managers to create user-friendly interfaces and ensure a seamless user experience.

My work involved developing websites for clients from different industries, including finance and retail. Although API integrations were not as prevalent at this time as in later years, I developed custom solutions for Content Management Systems (CMS) and integrated simple backend systems to improve client workflows.
E-commerce API Integration Payment Processing Software Development Artificial Intelligence