Georg L.-Full-Stack Developer - Ruby on Rails
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Experience
Solectrus
- Dashboard application for visualizing power generation and consumption as well as profitability calculations for a photovoltaic system.
- The software is built in a strictly modular way and can be used in many different settings, including on devices like the Raspberry Pi or NAS systems, and offers connection options for a wide range of PV systems.
- A steadily growing community values the intuitive operation and the high reliability of the tool.
- The source code is open source, and development is funded through a sponsorship model.
- Technologies: Ruby on Rails, InfluxDB, Docker, MQTT
Survey Engine + Survey App
- Development of an engine for creating dynamic questionnaires for market research with definition and validation via a JSON Schema.
- Programming of the extensive class hierarchy in TypeScript with a test suite and 100% coverage.
- Development of a Progressive Web App with Ruby on Rails and Vue.js for filling out the questionnaires on different devices.
- Technologies: TypeScript, JSON Schema, Jest, Vue.js
AstroDNA
- Implementation of a backend for astrological calculations based on precise specifications and secured by an extensive test suite.
- Development of a custom shop as a frontend with payment processing and integration through a specially developed API.
- Technologies: Ruby on Rails, Vue.js, Tailwind CSS, RESTful API, Stripe
TowerApp
- Development of a customer loyalty application where end users can register at branches via kiosks.
- Integration of a customer card with QR code for viewing the customer account.
- Implemented for an international food corporation on behalf of SayWay GmbH and in use in many thousands of branches.
- Technologies: Ruby on Rails, Vue.js, QR code, RESTful API
Beraterbörse.com
- Development of an open platform for selecting management consultants for different target groups such as founders, interim management, or business succession.
- Implemented and maintained on behalf of Creditreform Consulting Networks GmbH.
- Technologies: Ruby on Rails, PostgreSQL, Bootstrap
Wie fit ist Ihr Unternehmen?
- Developed a website for playful quick checks of a company’s fitness in different categories.
- Implemented on behalf of Creditreform Consulting Networks GmbH, with ongoing support afterward.
- Technologies: Ruby on Rails, PostgreSQL, Bootstrap
FINTURIO
- Developed a web-based CRM/ERP solution for small businesses with a simple structure for communication and task management.
- Offered as SaaS through completho Software GmbH.
- Technologies: Ruby on Rails, MySQL, Elasticsearch, Bootstrap
SalesKing
- Co-founded and supported the company for two years.
- Helped develop a web-based invoicing platform for freelancers and smaller agencies.
- Offered as SaaS.
- Technologies: Ruby on Rails, MySQL
woobby
- Developed a portal for bundled user experiences and opinions in the form of rankings in the Web 2.0 era.
- Implemented on behalf of a web agency.
- Technologies: Ruby on Rails, MySQL
MAKROS/Win
- Developed a Windows software for financial service providers to manage clients, insurance contracts, and commission billing.
- Licensed to insurance brokers and financial sales organizations with extensive reporting options.
- Technologies: Delphi, Windows
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Banking and Finance, Insurance, Information Technology, Energy, Food and Beverage, and Retail.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Accounting, Finance, Product Development, Business Intelligence, and Marketing.
Languages
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Experience
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Profile
Frequently asked questions
Have questions? Find more information here.
Georg is based in Jülich, Germany and can operate in on-site, hybrid, and remote work models.
Georg speaks the following languages: German (Native), English (Intermediate).
Georg has at least 28 years of experience. During this time, Georg has worked and for 10 different companies. The average length of individual experience is 3 years and 9 months. Note that Georg may not have shared all experience and actually has more experience.
In recent years, Georg has worked for Solectrus, Survey Engine + Survey App, AstroDNA, FINTURIO, and MAKROS/Win.
Georg is most experienced in industries like Banking and Finance, Insurance, and Information Technology. Georg also has some experience in Energy, Food and Beverage, and Retail.
Georg is most experienced in business areas like Information Technology, Accounting, and Finance. Georg also has some experience in Product Development, Business Intelligence, and Marketing.
Georg has recently worked in industries like Banking and Finance, Insurance, and Information Technology.
Georg has recently worked in business areas like Information Technology, Accounting, and Finance.
The availability of Georg needs to be confirmed.
Daily rate distribution
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Average rates for similar positions
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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 7 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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