Dimitri Simon - Fullstack Developer, Integrator

Q: Where is Dimitri based?

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

Q: What languages does Dimitri speak?

Dimitri speaks the following languages: German (Native), Russian (Native), English (Advanced) .

Q: How many years of experience does Dimitri have?

Dimitri has at least 7 years of experience. During this time, Dimitri has worked in at least 6 different roles and for 7 different companies . The average length of individual experience is 1 year and 11 months . Note that Dimitri may not have shared all experience and actually has more experience.

Q: What is Dimitri's latest experience?

Dimitri's most recent position is Fullstack Developer, Integrator at Generali Deutschland Versicherung AG .

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

In recent years, Dimitri has worked for Generali Deutschland Versicherung AG , Atruvia AG , Scheidt & Bachmann System Technik GmbH , Christoph Kroschke GmbH (carTRUST) , and Governikus GmbH & Co. KG .

Q: Which industries is Dimitri most experienced in?

Dimitri is most experienced in industries like Information Technology (IT) , Manufacturing , and Banking and Finance . Dimitri also has some experience in Insurance , Government and Public Administration , and Automotive .

Q: Which business areas is Dimitri most experienced in?

Dimitri is most experienced in business areas like Information Technology (IT) , Quality Assurance (QA) , and Product Development .

Q: Which industries has Dimitri worked in recently?

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

Q: Which business areas has Dimitri worked in recently?

Dimitri has recently worked in business areas like Information Technology (IT) , Quality Assurance (QA) , and Product Development .

Recommended expert

Bremen, Germany

Experience

Apr 2025 - Present

11 months

Fullstack Developer, Integrator

Generali Deutschland Versicherung AG

Developing automated build and deployment processes for the exclusive front office systems
Integrating the front office systems into the IT infrastructure
Developing innovative, user-friendly sales software for financial advisors
Ensuring quality and flexibility through automation and working with CI/CD
Working according to DevOps principles
Operating the software together as a team in the AWS cloud and Azure cloud
Deploying software artifacts to testing and production environments
Maintaining the test environments
Performing error analysis and providing information for further root cause analysis
Maintaining and supporting the build pipeline
Supporting load testing
Coordinating the batch execution schedule with batch automation
Creating concepts to further develop the software packaging process
Building and delivering components to partners
Developing GitLab and Jenkins pipelines for building, deploying and integrating components
Automating processes with Spring Boot applications with a GUI (Thymeleaf, Angular 19)
Developing RESTful Spring Boot applications with Kotlin and Angular 19, JDBC and REST accesses, data exchange via SFTP, XML (JAXB)
Designing components using Domain-Driven Design (DDD)
Replacing cmd and bash scripts with Spring Boot applications with a GUI
Replacing Java 8 applications with JSP by Spring Boot 3 applications (Thymeleaf, Angular)
Implementing frontend and backend authentication via Keycloak
Writing JUnit tests with Mockito
Increasing code coverage for SonarQube analysis

Feb 2024 - Apr 2025

1 year 3 months

Fullstack Developer, Lead Developer

Atruvia AG

Designing a new microservice component based on Domain-Driven Design (DDD)
Implementing the backend using Spring Boot 3
Implementing the frontend using Angular and Material UI
Implementing a gateway (Frontend for Backend pattern)
Integrating the component into the Volks- und Raiffeisenbank landscape
Designing and implementing the RESTful API and API governance
Implementing a REST client based on OpenFeign
Developing schema and migration SQL scripts for Oracle 19c using Hibernate and FlyWay
Testing and creating REST APIs with OpenAPI and Swagger
Generating APIs from YAML files via OpenAPI
Configuring and managing Jenkins-based CI/CD pipelines (Maven, OpenShift)
Developing YAML templates for scalable OpenShift deployments (Dev, Stage, Prod)
Creating network policies and authorization policies in YAML
Automated tests using Jenkins, Docker, JUnit, Jest
Version control and pull requests with Bitbucket
Static code analysis with SonarQube (Java, Angular)
Pair programming, code reviews, Jira, Confluence
Monitoring with Prometheus, Grafana, Dynatrace, Graylog

Jan 2023 - Dec 2023

1 year

Backend Developer, Test Automation Engineer

Scheidt & Bachmann System Technik GmbH

Designing, developing, integrating and maintaining backend functions using Spring Framework (Java 17)
Enhancing and maintaining the modular architecture with automated testing via ArchUnit
Developing RESTful APIs to communicate with interlocking control systems
Managing Jenkins-based CI/CD pipelines (Maven, Docker)
Planning and implementing acceptance tests with Cucumber (BDD)
Developing GUI tests with SWTBot and extending the SWTBot API
Automating integration and unit tests using JUnit
Version control with Git, code reviews via FishEye
Static code analysis with SonarQube
Knowledge transfer and training on BDD and pair programming
Ticket management and documentation in Jira and Confluence

Sep 2022 - Dec 2022

4 months

Fullstack Developer

Christoph Kroschke GmbH (carTRUST)

Creating concepts considering deadlines and budgets
Developing, implementing and maintaining a microservice architecture with Spring Boot and FlyWay/Hibernate
Developing a SOAP API using JAXB for communication with the German Federal Motor Transport Authority
Further developing RESTful APIs to improve performance and scalability
Setting up CI/CD pipelines with GitLab CI
Integrating Kafka and Kafka Connect for asynchronous communication
Containerization and orchestration (Docker, Docker Compose)
Deploying on AWS
Authentication and authorization with Keycloak
Database migration and management with PostgreSQL
API tests (SoapUI, OpenAPI, Swagger)
Unit, integration and performance tests
Version control and code reviews with GitLab
Task and document management in Jira and Confluence

Mar 2022 - Aug 2022

6 months

DevOps Developer, Test Automation Engineer

Governikus GmbH & Co. KG

Planning and implementing test automation for the EGVP-E application in various environments
Implementing Python scripts to create Docker images with different environments
Enriching Docker images with Testcontainers in Java code
Implementing Jenkins-based CI/CD pipelines
Preparing infrastructure with Ansible
Migrating the solution to Kubernetes
Creating technical documentation in Confluence
Knowledge transfer through presentations
Automating software deployment processes with Gradle
Version control and code reviews with Mercurial

Jan 2022 - Present

4 years 2 months

Backend Developer/Fullstack Developer/Test Automation Engineer

Self-employed

Work throughout Germany as a freelance developer in backend, fullstack, and test automation

Jan 2020 - Feb 2022

2 years 2 months

Fullstack Developer

Governikus GmbH & Co. KG

Conception and implementation of a new microservices architecture (DDD, hexagonal)
Development and maintenance of a monolithic architecture in Java
Development and maintenance of SOAP interfaces following the OSCI standard
Implementation of authentication and authorization with Spring Security
Further development of the user interface with JSF/PrimeFaces (accessibility)
Interface tests with SoapUI
JUnit and integration tests, static code analysis with SonarQube
Design and migration of relational databases (MySQL, PostgreSQL, MSSQL, OracleDB)
Testing compatibility on Tomcat, JBoss, WebLogic
Implementation of data and communication encryption with JCA
System tests on Windows and Linux
Automation of deployments (Maven, Gradle)
Version control with Mercurial, code reviews with Review Board, Kallithea
Ticket management and documentation in Jira and Confluence

Sep 2018 - Dec 2019

1 year 4 months

Fullstack Developer

HANSA-FLEX AG

Analysis of requirements for an online shop based on SAP Hybris and RFC
Development of a layered architecture in Java Spring
Designing interfaces between the SAP system and the online shop (RFC, REST)
Testing and documentation of RESTful APIs with Swagger
Performance optimization (JProfiler, JMeter)
CI/CD with Bitbucket and Bamboo
Frontend development with JSP/JSTL and JavaScript (Google CAPTCHA, Analytics)
Further development of features in the SAP system with ABAP
JUnit, integration tests, performance tests
Static code analysis with SonarQube
Documentation and knowledge base in Confluence
Task management in Jira

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 (6 years), Manufacturing (2 years), Insurance (1 year), Banking and Finance (1 year), Automotive (0.5 years), and Government and Administration (0.5 years).

Information Technology

Manufacturing

Insurance

Banking and Finance

Automotive

Government and Administration

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 (7.5 years), Quality Assurance (6 years), and Product Development (4 years).

Information Technology

Quality Assurance

Product Development

Summary

Role Senior Fullstack Developer

Industries Banking, Railways, Automotive, E-Government, E-Commerce, Insurance, Financial Advisory

Previous technical focus Gathering and analyzing project requirements in close collaboration with relevant stakeholders Designing, developing and optimizing backend applications using Java, Spring Framework and Spring Boot in an agile development environment (Scrum, Kanban) Planning and implementing software architectures based on a microservices approach to create modular and scalable systems Planning and implementing layered, modular and monolithic software architectures Planning and implementing hexagonal architectures using Domain-Driven Design (DDD) Migrating systems from monolithic to microservice architectures Designing and implementing RESTful and SOAP APIs for communication between different systems and services Setting up and configuring CI/CD pipelines to automate build, test and deployment processes Creating and running automated tests, including component, unit and integration tests to ensure software quality Implementing automation scripts to speed up and simplify development and deployment processes Using container technologies like Docker, Kubernetes, OpenShift to deploy and scale web applications in different environments Managing source code and version history with Git and Mercurial to track changes Identifying, tracking and fixing software bugs and performance bottlenecks and performing debugging activities Developing single-page user interfaces (SPA) using Angular and React Developing and optimizing graphical user interfaces using JSP and JSF for interactive and dynamic applications Developing frontend and backend with a focus on accessibility

Personal interests Building and delivering complex, scalable systems Improving system performance, security and user experience Self-taught learning of modern frontend frameworks and modern software architectures

Skills

Programming Languages: Java 8 - 21, Python, Groovy, Javascript (Jquery), Typescript, Abap
Frameworks: Java Ee (Jee) 8 - 21, Kotlin, Spring Framework (Core, Mvc, Data, Cloud, Security), Spring Boot, Jpa, Hibernate, Flyway, Sap Hybris
Frontend: Jsf (Primefaces), Jsp/jstl, Angular 17-21 (Bootstrap, Material Ui), Thymeleaf, React
Web Technologies: Html, Css
Software Architectures: Microservices, Monolith, Layered, Onion, Clean, Hexagonal, Modular Architecture
Interfaces: Rest (Including Hateoas), Soap
Ci/cd: Jenkins, Bitbucket, Bamboo, Gitlab Ci, Fisheye, Review Board
Build Management: Maven, Gradle
Containerization: Docker
Orchestration: Kubernetes, Docker Compose, Openshift, Service Mesh (Istio, Kiali)
Databases: Postgresql, Mysql, Mssql, Oracle
Cloud: Aws
Testing: Junit, Jmeter, Jprofiler, Swtbot, Cucumber, Mockito, Powermocj, Assertj, Testcontainer, Archunit, Jest
Version Control: Git, Gitlab, Mercurial
Web Servers: Tomcat, Jboss, Weglogic
Iam: Keycloak
Ides: Intellij Idea, Vs Code, Eclipse
Operating Systems: Windows, Macos, Linux, Unix
Scripting Languages: Bash, Powershell, Expect/tcl
Automation Environment: Ansible
Monitoring: Prometheus, Grafana, Dynatrace
Logging: Slf4j, Log4j, Graylog
Repository Manager: Artifactory
Messaging: Kafka, Apache Artemis
Collaboration Tools: Jira, Confluence
Others: Openapi, Swagger, Sonarqube, Kallithea, Velocity, Kafka Connect, Json, Http, Https, Uml, Xml, Sql, Sap Commerce Cloud, Jaxb, Jax-ws
Methods: Agile (Scrum, Kanban), Domain-driven Design (Ddd), Behavior-driven Development (Bdd), Test-driven Development (Tdd), Pair Programming, Code Review

Languages

German

Native

Russian

Native

English

Advanced

Education

Oct 2016 - Jun 2018

cbm GmbH

Retraining to become an IT Specialist in Application Development · IT Specialist, specialization: Application Development · Bremen, Germany

Oct 2002 - Jun 2004

Universität Bremen

Degree in Computer Science · Computer Science · Bremen, Germany

Oct 1995 - Jun 2001

Gymnasium an der Hamburger Straße

General university entrance qualification · General university entrance qualification · Bremen, Germany

Profile

Created

August 2025

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Frequently asked questions

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

Where is Dimitri based?

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

What languages does Dimitri speak?

Dimitri speaks the following languages: German (Native), Russian (Native), English (Advanced).

How many years of experience does Dimitri have?

Dimitri has at least 7 years of experience. During this time, Dimitri has worked in at least 6 different roles and for 7 different companies. The average length of individual experience is 1 year and 11 months. Note that Dimitri may not have shared all experience and actually has more experience.

What roles would Dimitri be best suited for?

Based on recent experience, Dimitri would be well-suited for roles such as: Fullstack Developer, Integrator, Fullstack Developer, Lead Developer, Backend Developer, Test Automation Engineer.

What is Dimitri's latest experience?

Dimitri's most recent position is Fullstack Developer, Integrator at Generali Deutschland Versicherung AG.

What companies has Dimitri worked for in recent years?

In recent years, Dimitri has worked for Generali Deutschland Versicherung AG, Atruvia AG, Scheidt & Bachmann System Technik GmbH, Christoph Kroschke GmbH (carTRUST), and Governikus GmbH & Co. KG.

Which industries is Dimitri most experienced in?

Dimitri is most experienced in industries like Information Technology (IT), Manufacturing, and Banking and Finance. Dimitri also has some experience in Insurance, Government and Public Administration, and Automotive.

Which business areas is Dimitri most experienced in?

Dimitri is most experienced in business areas like Information Technology (IT), Quality Assurance (QA), and Product Development.

Which industries has Dimitri worked in recently?

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

Which business areas has Dimitri worked in recently?

Dimitri has recently worked in business areas like Information Technology (IT), Quality Assurance (QA), and Product Development.

What is Dimitri's education?

Dimitri holds a Master in IT Specialist, specialization: Application Development from cbm GmbH.

What is the availability of Dimitri?

Dimitri is immediately available part-time for suitable projects.

What is the rate of Dimitri?

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