Georg Ledermann - Full-Stack-Developer

Q: Where is Georg based?

Georg is based in Jülich, Germany and can operate in on-site , hybrid , and remote work models.

Q: What languages does Georg speak?

Georg speaks the following languages: German (Native), English (Intermediate) .

Q: How many years of experience does Georg have?

Georg has at least 27 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.

Q: What companies has Georg worked for in recent years?

In recent years, Georg has worked for Solectrus , Survey Engine + Survey App , AstroDNA , FINTURIO , and MAKROS/Win .

Q: Which industries is Georg most experienced in?

Georg is most experienced in industries like Banking and Finance , Insurance , and Information Technology (IT) . Georg also has some experience in Energy , Food and Beverage , and Retail .

Q: Which business areas is Georg most experienced in?

Georg is most experienced in business areas like Information Technology (IT) , Accounting , and Finance . Georg also has some experience in Product Development , Business Intelligence , and Marketing .

Q: Which industries has Georg worked in recently?

Georg has recently worked in industries like Banking and Finance , Insurance , and Information Technology (IT) .

Q: Which business areas has Georg worked in recently?

Georg has recently worked in business areas like Information Technology (IT) , Accounting , and Finance .

Q: What is the availability of Georg?

Georg is immediately available full-time for suitable projects.

Recommended expert

Jülich, Germany

Experience

Jan 2021 - Present

5 years 3 months

Solectrus

Dashboard application for visualizing power generation and consumption, as well as profitability calculations of a photovoltaic system.
The software is strictly modular and versatile, also usable on devices like Raspberry Pi or NAS systems, and offers connectivity to a wide range of PV installations.
A steadily growing community appreciates the intuitive interface and high reliability of the tool.
The source code is publicly available (open source), and development is funded through a sponsorship model.
Technologies: Ruby on Rails, InfluxDB, Docker, MQTT

Jan 2021 - Dec 2022

2 years

Survey Engine + Survey App

Development of an engine for creating dynamic surveys 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 completing surveys on various devices.
Technologies: TypeScript, JSON Schema, Jest, Vue.js

Jan 2018 - Dec 2024

7 years

AstroDNA

Implementation of a backend for astrological calculations based on precise specifications and secured by an extensive test suite.
Development of a custom shop frontend with payment handling and integration through a bespoke API.
Technologies: Ruby on Rails, Vue.js, Tailwind CSS, RESTful API, Stripe

Jan 2018 - Dec 2020

3 years

TowerApp

Development of a customer loyalty application where end customers can register via kiosks in stores.
Integration of a customer card with a QR code for viewing the customer account.
Implemented for an international food retailer on behalf of SayWay GmbH and deployed in many thousands of stores.
Technologies: Ruby on Rails, Vue.js, QR code, RESTful API

Jan 2017 - Dec 2018

2 years

Beraterbörse.com

Development of an open platform for choosing business consultants for different target groups like founders, interim management, or business succession.
Implemented and maintained on behalf of Creditreform Consulting Networks GmbH.
Technologies: Ruby on Rails, PostgreSQL, Bootstrap

Jan 2017 - Dec 2017

1 year

How fit is your company?

Development of a website for playful quick checks on business fitness across various categories.
Implemented on behalf of Creditreform Consulting Networks GmbH with ongoing support.
Technologies: Ruby on Rails, PostgreSQL, Bootstrap

Jan 2010 - Present

16 years 3 months

FINTURIO

Development of a web-based CRM/ERP solution for small businesses with a simple structure for communication and task management.
Offered as SaaS via completho Software GmbH.
Technologies: Ruby on Rails, MySQL, Elasticsearch, Bootstrap

Jan 2008 - Dec 2009

2 years

SalesKing

Co-founded and supported the company for two years.
Assisted in developing a web-based invoicing platform for freelancers and small agencies.
Offered as SaaS.
Technologies: Ruby on Rails, MySQL

Jan 2007 - Dec 2008

2 years

woobby

Developed a portal for aggregated 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

Jan 1999 - Present

27 years 3 months

MAKROS/Win

Developed Windows software for financial service providers to manage clients, insurance contracts, and commission accounting.
Licensed to insurance brokers and financial distributors with extensive reporting features.
Technologies: Delphi, Windows

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Banking and Finance (27 years), Insurance (27 years), Information Technology (19 years), Energy (5 years), Food and Beverage (3 years), and Retail (3 years).

Banking and Finance

Insurance

Information Technology

Energy

Food and Beverage

Retail

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (27 years), Accounting (27 years), Finance (27 years), Product Development (19 years), Business Intelligence (5 years), and Marketing (3 years).

Information Technology

Accounting

Finance

Product Development

Business Intelligence

Marketing

Languages

German

Native

English

Intermediate

Profile

Created

September 2025

Last Update

September 2025

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Georg based?

Georg is based in Jülich, Germany and can operate in on-site, hybrid, and remote work models.

What languages does Georg speak?

Georg speaks the following languages: German (Native), English (Intermediate).

How many years of experience does Georg have?

Georg has at least 27 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.

What companies has Georg worked for in recent years?

In recent years, Georg has worked for Solectrus, Survey Engine + Survey App, AstroDNA, FINTURIO, and MAKROS/Win.

Which industries is Georg most experienced in?

Georg is most experienced in industries like Banking and Finance, Insurance, and Information Technology (IT). Georg also has some experience in Energy, Food and Beverage, and Retail.

Which business areas is Georg most experienced in?

Georg is most experienced in business areas like Information Technology (IT), Accounting, and Finance. Georg also has some experience in Product Development, Business Intelligence, and Marketing.

Which industries has Georg worked in recently?

Georg has recently worked in industries like Banking and Finance, Insurance, and Information Technology (IT).

Which business areas has Georg worked in recently?

Georg has recently worked in business areas like Information Technology (IT), Accounting, and Finance.

What is the availability of Georg?

Georg is immediately available full-time for suitable projects.

What is the rate of Georg?

Georg's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.