Jaroslav Abraham
Senior Fullstack Developer - Java / Kotlin / Angular / Vue.js
Experience
Sep 2023 - Present
1 year 11 monthsChild Care, Self-Development and Learning
Feb 2022 - Aug 2023
1 year 7 monthsStuttgart, Germany
Senior Fullstack Developer
nexMart GmbH
- Collaboration in an agile Scrum team on the following tasks:
- Contribution to the design and clarification of requirements and dependencies with other teams
- Design and implementation of Spring Boot microservices for a B2B e-commerce wholesale solution in Kotlin, with communication via REST (JSON) and ActiveMQ
- Frontend development with Vue.js, Stylus, NPM, JavaScript, and TypeScript
- Optimized product search using ElasticSearch
- Design of a public API, including Swagger / OpenAPI documentation for B2B orders
- Joint integration of the API with nexMart customers
- Creation of unit tests, component tests, and automated end-to-end (E2E) tests using Testcontainers
- Introduction of consumer-driven contract tests with Pact
- Use and extension of CI/CD pipelines in Jenkins and GitLab
- Persistence in a PostgreSQL database using jOOQ, with migration handled by Flyway
- Version control and code reviews in GitLab
- Code analysis with SonarQube
- Authentication using Keycloak, OpenID Connect, OAuth 2, and API keys
- Additional tools: IntelliJ IDEA, Docker, Maven, Nexus, OpenShift Cluster, Graylog, Grafana, Jira, Confluence
Jan 2020 - Dec 2021
2 yearsBern, Switzerland
Senior Software Engineer
Schweizerische Mobiliar Versicherungsgesellschaft AG
- Collaboration in an agile Scrum team within the SAFe framework on the following tasks:
- Planning of implementation iterations – Sprints and SAFe Program Increments (PI)
- Design and implementation of microservices for insurance contract invoicing in Java and Kotlin, with communication via REST (JSON) and Kafka
- Development and maintenance of services using Java EE and Spring Boot
- Unit tests, service tests, and automated system tests following TDD and BDD principles
- Consumer-driven contract testing of services with Pact
- Use of domain-driven design with OOP
- Persistence in an Oracle database using JPA/Hibernate, with migration handled by Flyway
- Version control and code reviews in BitBucket/Git, with code analysis using SonarQube
- Integration with SAP for billing
- Deployment in a private cloud using Docker/Kubernetes
- Automated infrastructure and cluster management with Rancher and Helm Charts
- DevOps with CI/CD pipeline in TeamCity
- Integrated monitoring and logging with Prometheus, Grafana, and Splunk
- Enhancements to the Angular-based frontend
- Additional tools: IntelliJ IDEA, Maven, Gradle, Nexus, WireMock, Mockito, Cucumber, JBoss, Confluence, Jira, Dynatrace, Slack
Mar 2011 - Sep 2020
9 years 7 monthsVienna, Austria
Lead Java Developer, IT Consultant
AGES GmbH
- Scrum development of a Java EE application landscape for the pharmaceutical industry, featuring BPMN workflows, Oracle 11g SOA, XML/SOAP web services, and JSF/ADF
- Deployed on Oracle WebCenter Portal and WebLogic Server, SSO authentication
- Tools: JDeveloper, Ant, Jenkins, Subversion, Jira, Confluence, Oracle DB
- Additional technologies: EJB, JMS, XSLT, SQL, HTML, CSS, JavaScript
- Integration with third-party systems for data exchange and postal delivery
- Consulting the client on technical and architectural possibilities
- Clarification and refinement of requirements
- Implementation design and task specification for various system components
- Coaching, mentoring, and training of other developers
- Researching and presenting modern technological alternatives
Apr 2006 - Jan 2011
4 years 10 monthsMunich, Germany
Java Developer
Moconso Technologies GmbH
- Architecture and development of Java EE middleware infrastructures for mobile applications in the fields of football live tickers, sports betting, and online games
- System design and architecture using Microsoft Visio and MagicDraw UML
- Development of an internal Java code generator based on UML diagrams
- Implementation in Eclipse IDE using Java 6 and Java EE technologies on Tomcat and MySQL, also including Spring, Hibernate, HTML, CSS, and JavaScript
- Manual setup of operational infrastructure in the AWS Cloud
- Deployment on AWS EC2 instances, with database hosted on Amazon RDS
Jan 2000 - Mar 2006
6 years 3 monthsPrague, Czech Republic
Software Developer
Et Netera s.r.o.
- Software development focusing on websites and e-business solutions, primarily using Java on Tomcat and MySQL, as well as Python, PHP, and C/C++
- Projects for Eurotel (mobile network operator, now O2), Euromedia Group (online bookstore), the City of Prague, Siemens, Scania (DMS systems), and Annonce (classified ads portal)
Languages
Czech
NativeGerman
AdvancedEnglish
Advanced Education
Oct 1997 - Jun 2003
Czech Technical University (CVUT)
IT/SW-Development · Prague, Czech Republic
Oct 1990 - Jun 1997
7-year secondary school
general education · Třebíč, Czech Republic
Certifications & licenses
Java 8 Programming TeckChek (score 98/100)
Training on Spring Boot and Angular 2 / TypeScript
adesso
iSAQB Certified Professional for Software Architectures
iSAQB
Training on soft skills, architecture and new technologies
adesso
Oracle training in SOA, BPMN and ADF technologies
Oracle
German Certificate
Sun Certified Java Programmer
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