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Achille (Aubin) C.

Backend/Frontend Developer

Vaihingen an der Enz, Germany

Experience

Dec 2024 - Dec 2024
1 month

Backend/Frontend Developer

ITZ-Bund

  • Development of backend components with Java/JEE, Quarkus, Kafka, Rest-Api
  • Development of test components with mocking frameworks (Mockito)
  • Development of unit tests with JUnit/ArchUnit, integration test components
  • Creation of OpenAPI specification format
  • Configuration of CI/CD Pipeline
  • Development of frontend component with React
  • Design, further development and optimization of system structures
  • Migration from MySQL to PostgreSQL
  • Code review
Jun 2024 - Jan 2025
8 months

Backend/Frontend Developer

Deutsche Bahn InfraGo

  • Development of backend components with Java/Spring Boot
  • Development of test components with mocking frameworks (Mockito)
  • Development of integration test components
  • Creation of OpenAPI specification format
  • Configuration of CI/CD Pipeline
  • Design, further development and optimization of system structures
  • Frontend development with Angular 18
  • Code review
Jun 2024 - Dec 2024
7 months

Backend Developer

Webfleet

  • Further development of backend components with Java/Spring Boot
  • Development of test components with mocking frameworks (Mockito)
  • Development of integration test components
  • Creation of OpenAPI specification format
  • Code review
  • Configuration of migration from Azure to AWS
Feb 2024 - Jul 2024
6 months

DevOps Engineer

Bundesdruckerei

  • Creation of CI/CD pipeline and deployment scripts
  • Creation of Dockerfile
  • Creation of release packages and execution of deployments
  • Implementation of security requirements
  • Creation of Kubernetes manifest
  • Creation of Kubernetes Helm Charts
  • Code review implemented with Java/Spring Boot
  • Creation AWS S3, AWS EC2, AWS Lambda, AWS VPC, AWS CloudWatch, AWS CDK, API-Gateway
May 2023 - Oct 2023
6 months

Fullstack Developer

Dr Gueldener GmbH

  • IT concepts
  • Development of backend components with Java/Spring Boot/Quarkus
  • Development of frontend components with Angular
  • Development of test components with mocking frameworks (Mockito, EasyMock)
  • Code review, clean code
Jan 2023 - Dec 2023
1 year

Backend/Frontend + DevOps Developer

Deutsche Bahn Fernverkehr AG

  • Development of Java/Spring Boot and Kotlin components
  • Development of components for JUnit test, system/integration test with Cucumber, mocking frameworks
  • Creation of Kubernetes Network Policies to secure the cluster
  • Configure GitLab CI/CD Pipelines, creation of Docker and Kubernetes configurations/Helm Charts, API-Gateway
  • Design, further development and optimization of system structures
  • Code review, clean code, AWS S3, AWS EC2, AWS EBS, AWS Lambda, AWS VPC, AWS CloudWatch, AWS DynamoDB, AWS CDK
Jan 2022 - Dec 2022
1 year

Fullstack + DevOps Developer

Deutsche Bahn Training + DB Regio

  • IT concepts
  • Development of Java/Spring Boot/Cloud Native, Kotlin, Kafka components for middleware application
  • Development of components for system/integration test with Cucumber, mocking frameworks
  • Design, further development and optimization of system structures
  • Configure GitLab CI/CD Pipelines, creation of Docker and Kubernetes configurations/Helm Charts
  • Creation of Kubernetes Network Policies to secure cluster, API-Gateway
  • Code review, clean code, AWS S3, AWS EC2, AWS EBS, AWS Lambda, AWS VPC, AWS CloudWatch, AWS DynamoDB, AWS CDK
Aug 2021 - Sep 2022
1 year 2 months

Fullstack + DevOps Developer

Telefonica O2

  • IT concepts, UX Design
  • Development of frontend & backend components in O2-shop area for editing hardware display and improving product presentation
  • Development of components for JUnit test, integration test, system test with Cucumber, mocking frameworks
  • Git, GitLab CI/CD Pipelines and Kubernetes/Helm Charts configuration
  • Implementation of AWS S3, AWS EC2, AWS Lambda, AWS VPC, AWS EKS, AWS CloudWatch, AWS DynamoDB, code review, clean code and release management, AWS CDK, API-Gateway
Dec 2020 - Nov 2021
1 year

Fullstack Developer

Bundeskriminalamt

  • Requirements analysis
  • IT concepts
  • Further development of frontend & backend components of existing web application for processing personal data
  • Development of components for JUnit test, integration test, system test, mocking frameworks
  • Design, further development and optimization of system structures
  • Code review, clean code, Eclipse Microprofile
Jun 2020 - Dec 2020
7 months

Frontend Developer + DevOps Developer

Fiducia & CAD

  • Development of frontend component for new application enabling customer authentication and data processing, UX Design
  • Creation of virtual machines in Azure
  • Implementation of SQL Azure
  • Development of components for JUnit test, integration test, system test, Mockito
  • Code review, Docker, Kubernetes/Helm charts
Jan 2020 - Jun 2020
6 months

Frontend/Backend Developer

BAMF: Federal Office for Migration and Refugees

  • IT concepts
  • Development of backend and frontend components for a new application to upload Excel files, process data, and store it in an Oracle database
  • Development of components for JUnit tests, integration tests, system tests, and mocking frameworks like Mockito
  • Code reviews, clean code, CheckStyle, FindBugs
Jul 2019 - Dec 2019
6 months

Frontend/Backend + DevOps Developer

Allianz Insurance

  • Requirements analysis
  • Development of backend/frontend components of an existing application to calculate private pension according to specific criteria
  • Code reviews, clean code, JSON/Jackson, XML, testing with mocking frameworks like Mockito, GWT
  • Design, further development, and optimization of system structures
  • Configuring GitLab CI/CD pipelines and creating Kubernetes/Helm chart configurations
  • Implementation of AWS services using AWS S3, AWS EC2, AWS Lambda, AWS DynamoDB, AWS CloudWatch
Jan 2019 - Jun 2019
6 months

Architect and Lead Backend Developer

Wuestenrot Bank

  • IT concepts, architecture, and leading the development of backend and business logic components with JPA 2, Spring, web services, RESTful web services
  • Code reviews, requirements analysis, clean code
Jan 2018 - Nov 2018
11 months
Nuremberg, Germany

Architect, Backend and Frontend Developer

Federal Employment Agency

  • Creation of IT concepts
  • Architecture and development of backend and business logic components with JPA 2/Hibernate, EJB 3.1, JAX-RS, JSON, XML
  • Development of frontend components with Angular 5.0
  • Requirements analysis, code reviews, clean code, mocking frameworks
Aug 2017 - Dec 2017
5 months

Lead Developer, Architect

Telefonica O2

  • Leading the development of backend and business logic components with JPA 2, EJB 3.1, JAX-WS, Apache CXF, SOAP
  • Coaching, code reviews
Nov 2015 - Jul 2017
1 year 9 months

Frontend and Backend Developer

Deutsche Bahn Vertrieb GmbH

  • Creation of DV concepts
  • Development of backend and business logic components with JPA 2, EJB 3.1, RESTful Web Services
  • Development of frontend components with Primefaces 5.3, JSF 2.1, AngularJS, Angular
  • Development of dialogs between frontend components
May 2015 - Nov 2015
7 months
Switzerland

Frontend and Backend Developer

MediData

  • Development of frontend components Swing, NetBeans RCP, GWT
  • Development of business logic component with EJB 3.1
  • Development of RESTful Services with JAX-RS, Jersey
  • Development of dialogs between Java Swing components
Jul 2014 - Mar 2015
9 months
Böblingen, Germany

Frontend and Backend Developer

Daimler AG

  • Creation of DV concepts
  • Implementation of technical requirements
  • Development of frontend components with Primefaces, JSF, XHTML, AngularJS
  • Development of backend component with JPA 2, OpenJPA
  • Development of business logic component with EJB 3.1
  • Development of RESTful Services with JAX-RS, Jersey
  • Development of dialogs between view components
May 2013 - Jun 2014
1 year 2 months
Munich, Germany

Frontend and Backend Developer

Unicredit / Hypovereinsbank

  • Creation of DV concepts
  • Migration from Richfaces to Primefaces
  • Implementation of technical requirements
  • Development of frontend components with Primefaces, JSF, XHTML
  • Development of backend component with Hibernate, JPA, EJB
  • Development of business logic component with EJB
  • Development of dialogs between view components
Aug 2012 - Apr 2013
9 months
Eschborn, Germany

Frontend and Backend Developer

VR Leasing

  • Implementation of technical requirements
  • Development of frontend components with RichFaces, JSF, XHTML
  • Development of backend component with Hibernate, JPA, EJB
  • Development of business logic component with EJB
  • Development of dialogs between view components
Nov 2011 - Jun 2012
8 months

Frontend Developer

Nürnberger Versicherungsgruppe

  • Implementation of technical requirements
  • Development of RichFaces and JSF User Interface components with Java, XHTML
  • Integration of RichFaces and JSF User Interface components with binding methods for display via XHTML implementation
  • Development of dialogs between JSF components
Jun 2011 - Oct 2011
5 months

Frontend Developer

QVC

  • Development of view components with IceFaces, JSF Portlets, XHTML
  • Development of dialogs between JSF components and portlets
  • Development of business logic components with Liferay-Services
  • Creation of technical concepts
Jun 2011 - Oct 2011
5 months
Bochum, Germany

J2EE Developer

QVC

  • Development of view components with RichFaces, JSF 2.0, JSP, XHTML
  • Development of backend components with Hibernate for Oracle database connection
  • Development of business logic components with Spring Framework
  • Development of dialogs between JSF components
Apr 2011 - May 2011
2 months
Dübendorf, Switzerland

J2EE Developer

HP

  • Development of view components with ADF, JSF 2.0
  • Development of dialogs between components
  • Development of Web Services with JWSDP
Jan 2011 - Mar 2011
3 months
Wiesbaden, Germany

J2EE Developer

R+V Allgemeine Versicherung AG

  • Development of view components with Spring, JSF 2.0
  • Development of dialogs between JSF components
  • Documentation, DV concept
Nov 2010 - Dec 2010
2 months
Switzerland

J2EE Developer

HolidayCheck.ch

  • Development of backend components using Hibernate
  • Database configuration via Hibernate configuration file to optimize queries (second-level cache with memcache server) and improve search (Hibernate Search, Hibernate master/slave)
Jan 2010 - Oct 2010
10 months
Wiesbaden, Germany

J2EE Developer

R+V Allgemeine Versicherung AG

  • Development of view components with Struts 1.2 and JSP
  • Development of business logic components for host integration
  • Development of dialog flows between view components
  • IT concept and documentation
Aug 2009 - Dec 2009
5 months
Bonn, Germany

J2EE Developer

ZIVIT

  • Development of persistence components with Spring Framework (DAO support, data access using JDBC)
  • Development of business logic components using EJB 3 and Spring Batch

Languages

German
Native
French
Native
English
Advanced

Education

Oct 1999 - Jun 2006

Hochschule Darmstadt

Master of Science in Computer Science · Computer Science · Darmstadt, Germany

Oct 1994 - Jun 1997

Universität Douala

Bachelor of Business Administration · Business Administration · Douala, Cameroon

Certifications & licenses

Sun Certified Java Programmer

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