Sascha N.-Full-Stack Developer · Technical Product Manager · Product Owner
Check rate
Experience
Consultant
Kallisto Consulting GmbH
- Planning and further development of responsive CMS websites
- Frontend development and expansion of internal PHP applications
- CONTENS and OpenCms
Web Developer
i22 internetagentur GmbH
- Technical planning and implementation of websites and web applications
- PHP and Ruby on Rails; mobile web development
- Consulting on social media applications and development of HTML newsletters
Web Developer
B+D Interactive GmbH
- HTML/CSS, templates for WordPress and CONTENS
- PHP-based websites, interfaces and database access
- Facebook applications and HTML newsletters
LIMES Schlosskliniken
LIMES Schlosskliniken
- Technical overhaul and further development of new and existing WordPress websites
- Documentation of data flows and cataloging of the software components used
- Performance optimization through numerous optimization iterations
- Support for additional features and the subsequent relaunch
Technologies: PHP, WordPress, MySQL, JavaScript, HTML5, SCSS, Twig, Composer
ivd24-Immobilienportal
ED Computer & Design GmbH & Co. KG
ivd24-Immobilienportal
- Tech Lead: technical consulting and ongoing optimization of development processes and application architecture
- Development of new features and restructuring of server architecture, databases and interfaces
- Developing important development processes together with the client
Technologies: PHP, MySQL, REST, JavaScript, HTML5, CSS, Composer, OOP
StudyCheck + FernstudiumCheck
Online Akademie GmbH
StudyCheck + FernstudiumCheck
- Designed and technically developed large study choice and review portals
- Technical point of contact for inquiries; assessed and coordinated requirements
- Frontend and backend development, new features, and API enhancements
- Worked in weekly sprints focused on load times, user-friendliness, and technical SEO
Technologies: PHP, JavaScript, HTML5, SCSS, REST, MariaDB, Redis, Composer, OOP, Responsive
orgaMAX Configurator
deltra Business Software GmbH & Co. KG
orgaMAX Configurator
- Designed and continuously optimized a product and order configurator
- Backend and frontend development and implementation of new features
- Improved the user experience and ordering process
Technologies: PHP, MySQL, REST, JavaScript, HTML5, SCSS, Twig, Nunjucks, Composer
apoBank Specialist CheckUp
talentsconnect AG
apoBank Specialist CheckUp
- Designed and technically implemented an online decision-making tool for medical doctors
- Developed backend features and REST APIs for data retrieval, storage, and email delivery
- Enhanced frontend features and worked with the client
Technologies: PHP, TypeScript, JavaScript, REST, MySQL, Twig, Composer, OOP
talentsconnect JobShop
talentsconnect AG
talentsconnect JobShop
- Designed and continuously developed a web-based recruiting platform
- Developed new features and adapted existing functionality
- Backend and frontend development, as well as technical consulting and documentation
- Coordinated technical requirements and managed projects; integrated jobs via APIs
Technologies: PHP, TypeScript, JavaScript, REST, Elasticsearch, Redis, SCSS, Composer, Nunjucks, OOP
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology and Advertising.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Product Development, and Marketing.
Summary
Freelance Full-Stack Developer and Technical Product Manager from Cologne with more than 15 years of experience developing web-based products and applications
Focus areas: technical planning, backend and frontend development, APIs and system integration, as well as supporting digital products from idea to delivery – experience in product ownership and management, technical consulting and team coordination. I combine technical depth with a good eye for design and high standards for quality – from planning to the final result.
Skills
Expert:
- Php
- Html5
- Css
- Javascript
- Sql / Mysql
- Rest Apis
- Api Design
- Json
- Backend Development
- Frontend Development
- Full-Stack Development
- Sass / Scss
- Ajax
- Oop
Advanced:
- Typescript
- Vue
- React
- Laravel
- Cms
- Ci/Cd
- Git
- Docker
- Consulting / Coaching
- Tech Lead
- Product Management
- Product Ownership
- Project Management
- Project Leadership
Additional Experience:
- Graphql
- Wordpress
- Processwire
- Jquery
- Twig
- Composer
- Bootstrap
- Nunjucks
- Redis
- Figma
- Claude
- Chatgpt
- Hermesagent
Languages
Education
SAE Institute + Middlesex University
Bachelor of Arts (Honours) · Web Development · Cologne, Germany · 1,2
Statistics
Experience
Global experience
Expertise
Qualifications
Frequently asked questions
Have questions? Find more information here.
Sascha is based in Cologne, Germany.
Sascha speaks the following languages: German (Native), English (Advanced).
Sascha has at least 7 years of experience. During this time, Sascha has worked in at least 2 different roles and for 3 different companies. The average length of individual experience is 2 years and 3 months. Note that Sascha may not have shared all experience and actually has more experience.
Based on recent experience, Sascha would be well-suited for roles such as: Consultant, Web Developer, LIMES Schlosskliniken.
Sascha's most recent position is Consultant at Kallisto Consulting GmbH.
Sascha is most experienced in industries like Information Technology and Advertising.
Sascha is most experienced in business areas like Information Technology, Product Development, and Marketing.
Sascha holds a Bachelor in Web Development from SAE Institute + Middlesex University.
Sascha is immediately available part-time for suitable projects.
Daily rate distribution
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 28 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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