Mario Ellebrecht-Developer and Consultant
Check rate
Experience
Developer and Consultant
Freelancer
Co-founder and Technical Director
MUNDWERK AG
Technical Project Manager
S3 AG
Software Developer
NADS GmbH
Student Assistant
Chair of Artificial Intelligence, Computer Science Department, University of Dortmund
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology and Education.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Product Development, Research and Development, and Project Management.
Summary
My general goal is to create lasting added value for innovations in products and services in telecommunications, IT and other industries by applying proven experience from over 20 years of successful work in software development and technical management, as a developer, software architect, tester or interim manager, either as part of a development team or as an independent advisor to technical staff and management. Intrinsic motivation for me is the joy of building sustainable technical solutions for appealing use cases. In doing so, I am committed to a systematic approach and preferably follow agile methods. Besides my interest in quickly learning new technologies and a broad foundation of generalist knowledge, I have gained specific expertise in over 50 projects in the areas of Internet, IoT/Embedded, geo and mobile applications, which I especially like to contribute to new product and service developments.
Skills
Technology Focus Internet / Java Se/Ee / Web Services, Geo / Navigation / Gps / Lbs, Internet Of Things / Embedded / M2m, Mobile / Android / Java Me
Industries Telecommunications, Software, Internet, E-Business, Asp/Isp, Systems Integration, Media, Automotive, Aviation, Financial Services
Roles Developer, Architect, Tester, Scrum Master, Project Manager, Coach, Trainer, Due Diligence/Auditor, Interim Development Manager/Cto
Work Environments Ready To Perform In All Settings, From Startups In Formation To International Corporations, Formal And Informal
Contract Types Exclusively Freelance Work Based On Service And Work Contracts
Programming Languages Java (Se, Ee And Me Including Many Apis), Kotlin, Groovy, Go, C++, C, Javascript, Python, Php, Perl, Shell, Sml, Prolog
Development Tools Intellij Idea, Eclipse, Android, Graalvm, Maven, Gradle, Git, Sonar, Circleci, Bamboo, Jenkins, Enterprise Architect, Jira
Testing Tools Junit, Mockito, Cucumber, Karate, Testcontainers, Dbunit, Rest Assured, Spock, Selenium, Jmeter, Owasp, Postman
Web Infrastructure Vert.X, Spring Boot, Ktor, Akka, Wicket, Dropwizard, Jersey, Open Api, Restlet, Netty, Apache, Tomcat, Jboss, Jetty, Netty
Cloud & Devops Aws, Gcp, Azure, Docker, Kubernetes, Helm, Vagrant, Elk Stack (Elasticsearch, Logstash, Kibana), Prometheus, Grafana
Database Management Systems Neo4j, Mongodb, Redis, Postgresql, Mariadb, Mysql, Oracle, Lucene, Hadoop, Elasticsearch, Cassandra, Liquibase, Flyway
Geo & Graphics Apis Jmonkeyengine 3d, Jai, Geotools, Jts, Navteq Rdf, Osm
Standards Xml, Html, Json, Bson, Jose, Voicexml, Sql, Uml, Oauth, Rdf, Rml, Sparql, Jms, Osgi, Jpa, Jax-Ws/Rs
Protocols Tcp/Ip, Http, Websocket, Sip, Xmpp, Coap, Mqtt, Amqp
Frameworks And Middleware Spring, Hibernate, Graphql, Jackson, Rabbitmq, Dropwizard, Kryo, Protobuf, Reactive Streams, Rxjava, Quarkus, Micronaut
Mobile/Embedded Platforms Android, Android Things/Brillo, Java Me/Se Embedded, Avionic/Embedded Linux, Raspberry Pi, Arduino, Esp32, Stm32
Operating Systems Gnu/Linux (Fedora, Debian, Gentoo, And Other Distributions), Solaris Sparc/Intel, Freebsd, Windows 32/64, Apple Macos X
Networking/Telecommunications Lpwan, Sigfox, Nb-Iot, Wlan, Bt, Nms/Dialogic, Nuance
Methodologies Scrum, Safe, Kanban, Xp, Ls, Clean Code, Tdd, Bdd, Ddd, Design Patterns, Rest, Cqrs, Event Sourcing, Hateoas, Scs
Languages
Education
University of Dortmund
Diploma in Computer Science · Computer Science · Dortmund, Germany · very good
Certifications & licenses
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Mario is based in Berlin, Germany and can operate in on-site, hybrid, and remote work models.
Mario speaks the following languages: German (Native), English (Advanced), Spanish (Elementary).
Mario has at least 33 years of experience. During this time, Mario has worked in at least 5 different roles and for 5 different companies. The average length of individual experience is 7 years and 6 months. Note that Mario may not have shared all experience and actually has more experience.
Based on recent experience, Mario would be well-suited for roles such as: Developer and Consultant, Co-founder and Technical Director, Technical Project Manager.
Mario's most recent position is Developer and Consultant at Freelancer.
In recent years, Mario has worked for Freelancer.
Mario is most experienced in industries like Information Technology and Education.
Mario is most experienced in business areas like Information Technology, Product Development, and Research and Development. Mario also has some experience in Project Management.
Mario has recently worked in industries like Information Technology.
Mario has recently worked in business areas like Information Technology.
Mario attended University of Dortmund for Computer Science.
Mario has 3 certificates. These include: Certified Scrum Master, Brainbench J2EE Master, and VoiceObjects.
The availability of Mario needs to be confirmed.
Daily rate distribution
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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 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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