Daniel Kullmann

Daniel Kullmann Email and Phone Number

Freelance Software Developer | Java/Spring Boot, Python/Django/FastAPI @ Toptal
san francisco, california, united states
Daniel Kullmann's Location
Potsdam, Brandenburg, Germany, Germany
Daniel Kullmann's Contact Details

Daniel Kullmann personal email

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Daniel Kullmann phone numbers

About Daniel Kullmann

I'm a passionate and pragmatic software developer with many years of experience. After having worked as employee for many years, I am now working as a freelancer. My specialties are: - Programming languages: Java, Python, Kotlin, Javascript- DevOps: Jenkins, Scripting, Docker, Kubernetes- Web Applications (Spring Boot, Django)- Distributed systems- Cloud platforms (AWS, Azure, SAP BTP)- Debugging- Extensive knowledge in developing for Linux systems, including intermediate system administration skillsThings that are important to me:- Fostering an environment where people feel good; this is more about a culture of openness and trustthan about compensation and benefits- A culture that embraces telling it like it is- Pragmatism; the newest "shiny" technology is not necessarily the best for a project; proven technologies are worth a lot, even though they seem to be less convenient- Flat hierarchiesMy interests are:- Programming languages, i.e. those listed above but also other languages such as Go, Haskell, Erlang, D, and Rust- Agile software development- Open Source Software

Daniel Kullmann's Current Company Details
Toptal

Toptal

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Freelance Software Developer | Java/Spring Boot, Python/Django/FastAPI
san francisco, california, united states
Website:
toptal.com
Employees:
3758
Daniel Kullmann Work Experience Details
  • Self-Employed
    Software Developer
    Self-Employed Jun 2019 - Present
    Potsdam Area, Germany
  • Toptal
    Toptal Engineer
    Toptal Apr 2019 - Present
  • Karat (Self-Employed)
    Karat Interview Engineer
    Karat (Self-Employed) Sep 2019 - Present
    Remote
  • Sap Innovation Centre Potsdam
    Senior Developer
    Sap Innovation Centre Potsdam Oct 2013 - Sep 2018
    Potsdam Area, Germany
    I worked on several projects here; the latest two were implemented in Scala:* An innovative web application to visualize financial data* A new application framework for Scala with special features to support the SAP ecosystem: * easily access data from ERP systems * deploy to SAP's cloud offerings (SCP classic and CloudFoundry)
  • Lauter Leben
    N/A
    Lauter Leben Jul 2013 - Oct 2013
    Kanin, Germany
    Building our own apartment
  • Dtu Elektro
    Scientific Assistant, Effectively Software Developer And System Administrator
    Dtu Elektro May 2012 - Aug 2013
    Risø
    My main tasks are software development, system administration and documentation, all related with the 40+ servers that are used to control the experimental power system SYSLAB (see http://www.syslab.dk).Some of the software development projects have been:- Requirement analysis for an extension of the access control system- Evaluating different approaches to realise a storage system for measurement data (200 Mio. measurements per day)- Implementing interfaces to other… Show more My main tasks are software development, system administration and documentation, all related with the 40+ servers that are used to control the experimental power system SYSLAB (see http://www.syslab.dk).Some of the software development projects have been:- Requirement analysis for an extension of the access control system- Evaluating different approaches to realise a storage system for measurement data (200 Mio. measurements per day)- Implementing interfaces to other systems, e.g. using web servicesImportant languages, tools and technologies:Java, Javascript, Python, C/C++, Bash, PostgreSQL, Web Services, Mercurial, Eclipse, Linux, Testing, Continuous Integration (Hudson/Jenkins) Show less
  • Risø National Laboratory For Sustainable Energy
    Phd Student
    Risø National Laboratory For Sustainable Energy Sep 2008 - Apr 2012
    Roskilde, Denmark
    Working on my PhD, title: "Policy-Based Communication for the Control of Power Systems". The basic idea is to use higher-level data formats in control communication, and to especially investigate the idea of policy-based communication that splits control communication into two distinct parts: agreeing on a behaviour to execute, and then executing this behaviour by responding to trigger signals.I also contributed significantly to the development of the software that controls the… Show more Working on my PhD, title: "Policy-Based Communication for the Control of Power Systems". The basic idea is to use higher-level data formats in control communication, and to especially investigate the idea of policy-based communication that splits control communication into two distinct parts: agreeing on a behaviour to execute, and then executing this behaviour by responding to trigger signals.I also contributed significantly to the development of the software that controls the experimental power system SYSLAB.Selected list of projects:- Implementing data collection for the in-car computer in a Toyota Prius that had been converted to a plugin hybrid. - Rewriting the software controlling the intelligent office building PowerFlexHouseI also pushed for using modern software development technology for supporting the development:- Changing the version control system to Mercurial- Introducing continuous integration - Installing a new bug tracker- Code review- Unit testing- Enhance documentation of the system in the wikiImportant languages, tools and technologies:Java, Python, C/C++, JADE, Rule systems (JBoss Drools), Mercurial, Eclipse, Linux, IEC 61850, IEC 61970 (CIM) Show less
  • Zakoa Gmbh
    Software Developer
    Zakoa Gmbh Nov 2007 - Jul 2008
    Frankfurt, Germany
    Design and implementation of web-applications. List of projects:- Development of a project management suite using PHP (Zend Framework), Javascript (JQuery), and MySQL- Development of a javascript application that counts the number of current listeners of an online radio stream- Maintenance of a Java web application for managing IT and other equipment for trade fairsImportant languages, tools and technologies:Java, PHP, Javascript, MySQL, Apache Tomcat, Zend… Show more Design and implementation of web-applications. List of projects:- Development of a project management suite using PHP (Zend Framework), Javascript (JQuery), and MySQL- Development of a javascript application that counts the number of current listeners of an online radio stream- Maintenance of a Java web application for managing IT and other equipment for trade fairsImportant languages, tools and technologies:Java, PHP, Javascript, MySQL, Apache Tomcat, Zend Framework, Eclipse, Subversion, jQuery, Linux, Windows XP, Struts Show less
  • 5 Point Ag
    Software Developer
    5 Point Ag Sep 2002 - Dec 2006
    Darmstadt, Germany
    Design and implementation of web-applications.List of projects:- Java web application based on Struts for comparing the performance of car dealerships; importing data from UN/EDIFACT files; many different reports, both as web pages and as PDFs; managing of users and other data- Perl web application for project managment with many different modules; use of Javascript to increase usability of UI; Localization of software; rewrote bottleneck in C to increase performance -… Show more Design and implementation of web-applications.List of projects:- Java web application based on Struts for comparing the performance of car dealerships; importing data from UN/EDIFACT files; many different reports, both as web pages and as PDFs; managing of users and other data- Perl web application for project managment with many different modules; use of Javascript to increase usability of UI; Localization of software; rewrote bottleneck in C to increase performance - Java web application for managing equipment for trade fairsImportant languages, tools and technologies:Java, Perl, Javascript, C, Apache Tomcat, PostgreSQL, MySQL, Struts, Eclipse, Subversion, jQuery, Linux, Windows 2000, Localization Show less

Daniel Kullmann Skills

Matlab/simulink Software Development Java Mercurial Python Linux Linux System Administration Bash Latex Object Oriented Design Software Engineering Postgresql Vim Eclipse Ant Javascript Jquery C Perl Gnu Make Mysql Html Css Php Git Subversion Renewable Energy Cvs Simulink Matlab Apache Tomcat Scala Sap Hana Devops Jenkins

Daniel Kullmann Education Details

Frequently Asked Questions about Daniel Kullmann

What company does Daniel Kullmann work for?

Daniel Kullmann works for Toptal

What is Daniel Kullmann's role at the current company?

Daniel Kullmann's current role is Freelance Software Developer | Java/Spring Boot, Python/Django/FastAPI.

What is Daniel Kullmann's email address?

Daniel Kullmann's email address is daniel.kullmann@gmx.de

What is Daniel Kullmann's direct phone number?

Daniel Kullmann's direct phone number is +4917755*****

What schools did Daniel Kullmann attend?

Daniel Kullmann attended Dtu - Technical University Of Denmark, Technische Universität Darmstadt.

What are some of Daniel Kullmann's interests?

Daniel Kullmann has interest in Agile Software Development, Sailing, Programming Languages, Climbing, Open Source.

What skills is Daniel Kullmann known for?

Daniel Kullmann has skills like Matlab/simulink, Software Development, Java, Mercurial, Python, Linux, Linux System Administration, Bash, Latex, Object Oriented Design, Software Engineering, Postgresql.

Who are Daniel Kullmann's colleagues?

Daniel Kullmann's colleagues are Suraj Pratap, Oto Prangi, Bibek Bindas, Stacy Schuh, Raj Anant, Piyush Sharma, Vitaliy Kiselyov.

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