I am a highly experienced Java/Kotlin backend developer with expertise in Spring Boot, REST, microservices, and Docker. My work often involves close collaboration with customers and cross-functional teams, delivering middleware solutions and backend systems in agile Scrum environments. My background as a mathematician gives me a solid understanding of algorithms, optimization, and complex query writing. Over the years, I've contributed to projects across various industries such as logistics and data management, always focusing on scalable and maintainable server-side applications. I am keen to leverage my technical and teamwork skills in a new role and excited about the opportunity to contribute immediately to innovative backend development projects.

Boris Solos

I am a highly experienced Java/Kotlin backend developer with expertise in Spring Boot, REST, microservices, and Docker. My work often involves close collaboration with customers and cross-functional teams, delivering middleware solutions and backend systems in agile Scrum environments. My background as a mathematician gives me a solid understanding of algorithms, optimization, and complex query writing. Over the years, I've contributed to projects across various industries such as logistics and data management, always focusing on scalable and maintainable server-side applications. I am keen to leverage my technical and teamwork skills in a new role and excited about the opportunity to contribute immediately to innovative backend development projects.

Available to hire

I am a highly experienced Java/Kotlin backend developer with expertise in Spring Boot, REST, microservices, and Docker. My work often involves close collaboration with customers and cross-functional teams, delivering middleware solutions and backend systems in agile Scrum environments. My background as a mathematician gives me a solid understanding of algorithms, optimization, and complex query writing.

Over the years, I’ve contributed to projects across various industries such as logistics and data management, always focusing on scalable and maintainable server-side applications. I am keen to leverage my technical and teamwork skills in a new role and excited about the opportunity to contribute immediately to innovative backend development projects.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate

Language

German
Fluent
English
Advanced

Work Experience

Senior Softwareentwickler at Advaneo GmbH
December 31, 2024 - August 21, 2025
Developed backend solutions for Dataspace Software using IntelliJ IDEA, Java, Gradle, REST, and EDC Connector with data analytics AI integration. Developed two middleware solutions (TDH and EDC) focused on CSV data processing, AI-supported data analytics, and security using Keycloak's Java Security REST API. Projects reached version 1.0 and were successfully presented to investors and customers.
Senior Softwareentwickler at OBI Group Holding SE & Co. KGaA
October 31, 2022 - August 21, 2025
Developed Kotlin backend B2C software for online garden terrace design and construction planning utilizing IntelliJ IDEA, Kotlin, Gradle, REST, Kubernetes, and ArangoDB.
Senior Softwareentwickler at European EPC Competence Center GmbH
June 30, 2022 - August 21, 2025
Developed JAVA/JEE web applications for international logistics with tracking solutions for goods and packaging, using IntelliJ IDEA, Java 11, Spring Boot, REST, Docker, Git, Jira, and PostgreSQL.
Senior Softwareentwickler at Excellence AG
January 31, 2021 - August 21, 2025
Developed JAVA/JEE B2C web applications for ordering milk samples for livestock breeding with technologies including IntelliJ IDEA, Java 8-11, Spring Boot, REST/Microservices, Docker, JOOQ, and Kotlin.
Softwareentwickler (various contracts) at Brunel GmbH
March 31, 2020 - August 21, 2025
Worked on multiple projects including Java 9 backend development for RCI Banque with technologies such as IntelliJ, Git, Tomcat, Jira, Docker, Spring Boot, SOAP, REST, DB2; frontend and backend tasks for Ford Cologne using JavaScript, dojo, ARAS, AML, C#; and other Java based implementations.

Education

Diplom-Mathematiker at Rostov-am-Don Staatliche Universität
September 1, 1989 - June 30, 1994
Anwendungsentwickler at Siemens-Nixdorf
April 1, 1999 - April 30, 2000

Qualifications

Anwendungsentwickler
April 1, 1999 - April 30, 2000

Industry Experience

Transportation & Logistics, Financial Services, Software & Internet, Retail, Manufacturing