Recommended expert
Denny Reeh
Lead Developer Backend
Experience
May 2014 - Present
11 years 10 monthsAugsburg, Germany
Lead Developer Backend
CHECK24 Vergleichsportal Mietwagen GmbH
Jan 2012 - Apr 2014
2 years 4 monthsTechnical Lead / Team Lead / Senior Software Developer
Jarlssen GmbH
- Developer Team Lead
- Software Development
- PHP
- Symfony
- Zend Framework
- JavaScript
- TÜV certified software quality
- Rapid Prototyping
- PHP Performance Tuning
- WebToPrint
- LDAP
- System Administration
- Payment Integration
- CRUD
Dec 2009 - Dec 2011
2 years 1 monthMunich, Germany
Senior Software Developer
Utopia AG
Dec 2008 - Aug 2009
9 monthsSenior Software Developer
AUVICA GmbH
Aug 2007 - Nov 2008
1 year 4 monthsSenior Software Developer / Tech Lead
LifeJack AG
Sep 2005 - Present
20 years 6 monthsSoftware Developer
Freelancer
- Software development
- Server administration
- PHP
- JavaScript
- PDFLib
- MySQL
- MySQL replication
- Performance
- Team organisation and team lead
- Technical lead
May 2005 - Jul 2007
2 years 3 monthsSoftware Developer
Sixt AG
Dec 2000 - Apr 2005
4 years 5 monthsSystem Developer
e/t/s didactic media GmbH
May 2000 - Nov 2000
7 monthsDiploma Candidate in IT Department
BMW Bank GmbH
Apr 1998 - Apr 2000
2 years 1 monthSoftware Developer
Baan Deutschland GmbH
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 Information Technology (22.5 years), Tourism (12 years), Education (4.5 years), Automotive (2 years), and Banking and Finance (0.5 years).
Information Technology
Tourism
Education
Automotive
Banking and Finance
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 (28 years), Product Development (22.5 years), and Quality Assurance (2.5 years).
Information Technology
Product Development
Quality Assurance
Skills
- Mysql Query Optimization
- Mysql Performance Analysis
- Lead Developer Backend
- Mysql High Availability Cluster
- Php Oop (Symfony, Laminas, Zend)
- Perl
- Golang
- Python
- Cobol
- Javascript
- Node.js
- Dba
- Mysql Innodb Cluster
- Mysql Monitoring
- Query Optimization
- Performance Optimization Expert
Languages
German
NativeEnglish
AdvancedEducation
Oct 1995 - Jun 2000
Martin Luther University Halle-Wittenberg
Diploma in Business Informatics · Computer Software Engineering and Databases · Halle (Saale), Germany
Profile
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Frequently asked questions
Do you have questions? Here you can find further information.
Where is Denny based?
Denny is based in Augsburg, Germany and prefers 100% remote projects.
What languages does Denny speak?
Denny speaks the following languages: German (Native), English (Advanced).
How many years of experience does Denny have?
Denny has at least 28 years of experience. During this time, Denny has worked in at least 7 different roles and for 10 different companies. The average length of individual experience is 3 years and 9 months. Note that Denny may not have shared all experience and actually has more experience.
What roles would Denny be best suited for?
Based on recent experience, Denny would be well-suited for roles such as: Lead Developer Backend, Technical Lead / Team Lead / Senior Software Developer, Senior Software Developer.
What is Denny's latest experience?
Denny's most recent position is Lead Developer Backend at CHECK24 Vergleichsportal Mietwagen GmbH.
What companies has Denny worked for in recent years?
In recent years, Denny has worked for CHECK24 Vergleichsportal Mietwagen GmbH and Freelancer.
Which industries is Denny most experienced in?
Denny is most experienced in industries like Information Technology (IT), Tourism and Hospitality, and Education. Denny also has some experience in Automotive and Banking and Finance.
Which business areas is Denny most experienced in?
Denny is most experienced in business areas like Information Technology (IT), Product Development, and Quality Assurance (QA).
Which industries has Denny worked in recently?
Denny has recently worked in industries like Information Technology (IT) and Tourism and Hospitality.
Which business areas has Denny worked in recently?
Denny has recently worked in business areas like Information Technology (IT) and Product Development.
What is Denny's education?
Denny holds a Master in Computer Software Engineering and Databases from Martin Luther University Halle-Wittenberg.
What is the availability of Denny?
Denny is immediately available part-time for suitable projects.
What is the rate of Denny?
Denny's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.
How to hire Denny?
To hire Denny, click the Meet button on the profile to request a meeting and discuss your project needs.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
1200
900
600
300
Market avg: 870-1030 €
Market avg: 870-1030 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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