Sebastián Katzer
Further development of "ROAD-Kit"
Experience
Apr 2022 - Sep 2023
1 year 6 monthsGermany
Further development of "ROAD-Kit"
Mercedes-Benz, MBTI
- ROAD-Kit is a tool to improve the developer journey for in-car app developers. It offers a CLI, a graphical IDE, ADKs and simulators, as well as a cloud environment tailored to the Mercedes-Benz OS, similar to ADB and Android Studio for Android.
- In my role as a software developer, I shaped and refined the tooling from the alpha version to a mature standard tool.
- Tasks:
- Agile software development in an interdisciplinary setting with multiple teams working closely together and supporting each other
- Independent design and development of new features
- Finding solution ideas, presenting them to the team, piloting and implementing them
- Error analysis; writing automated E2E and UI tests; manual testing
- Participating in workshops, handling tickets, analyzing bug reports
- Community support: advising in-car app developers, explaining new features, responding to their requests and needs
- Restructuring the CLI architecture; porting all functions to the new vehicle generation; optimizing existing features
- Main responsibility for developing the IDE based on VSCode with full design ownership
- Further development of the Yocto and Qemu based ADKs
- Building new releases
- Pair programming
- Languages & technologies used:
- Go, TypeScript, QML/C++, Shell
- GitHub, GitLab, Azure DevOps, Azure Cloud
- Miro, Teams, Rocket.Chat, Figma, MS Office
- IntelliJ, VSCode Extension API, Podman, QEMU, Yocto, Packer, VNC, Qt
Mar 2021 - Mar 2022
1 year 1 monthGermany
Further development of "Saveris Restaurant"
Testo
- Successfully delivered strategically important features under time pressure and staff shortages. Testo SE offers a cloud-based software solution for modeling and quality assurance of quick-service restaurants (fast-food chains). The core application, a monolithic legacy system, needed to be extended with new use cases that were not originally planned.
- Tasks:
- Finding solutions and implementing them in the legacy system while it remained in global operation. Extending the data model and migrating existing data.
- Gradual separation of parts of the legacy system into independent services and their deployment. Redevelopment using modern technologies and domain-driven design approaches.
- 3rd-level support, fixing (and finding) bugs and incidents
- Technical and functional onboarding of new team members
- Supporting manual tests. Writing automated software tests, participating in SCRUM meetings, etc.
- Languages & technologies used:
- Java 8/11/17, Java EE stack, Spring Boot stack, Axon, Apache Camel, Hibernate, DeltaSpike, Tomcat, Weld CDI, JUnit Jupiter, Spock, …
- Amazon AWS stack (Beanstalk, CloudWatch, Container Registry, EC2, SNS/SQS, LaunchDarkly, Lambda, saml2aws, etc.), CloudFormation, Terraform
- Docker, Gradle, IntelliJ, MySQL
- Jenkins, SonarQube, GitLab, GitLab CI
- Jira, Confluence, Miro, Slack, Teams, Whiteboard
Sep 2019 - Feb 2021
1 year 6 monthsGermany
Further development of "Job-related German Language Support"
BAMF
- Administration, coordination and billing of job-related German language support via a central digital platform with a wide range of features for multiple stakeholders.
- Tasks:
- Extending on-site inspections for planning and creating checklists, rule-based data evaluation to suggest sanctions, complex reporting, interactive data and KPI visualizations
- Redeveloping course management both for course providers to record and manage courses and for internal caseworkers to process data. Implementing complex validations.
- Writing automated tests, data migration, providing API and client
- Languages & technologies used:
- Java, Spring Boot, TypeScript, Angular
- Oracle, PL/SQL, Swagger, Jenkins, Maven, Git, Rancher, Kubernetes
- Scrum, Jira, Confluence
Mar 2019 - Jul 2019
5 monthsGermany
Further development of the "infinitec SaaS Platform"
intinitec GmbH
- Developed microservices à la Netflix for exchanging and aggregating financial data between customers, partners and banks.
- Tasks:
- Developing an engine to classify transactions
- Bidirectional integration of external partners (e.g. banks) to import and manage customer data
- Languages & technologies used:
- Java, Groovy, PostgreSQL, Vavr
- Spring, Docker, Grafana, Spock, TestRail, Git, Gradle
- Scrum, Jira, Confluence
Jan 2019 - Apr 2019
4 monthsGermany
Further development of the "blugento datahub"
St. Benno Mediengroup
- eCommerce platform to connect customers’ PIM and shop systems in the media industry.
- Tasks:
- Developing integration components and data pipelines to/from Akeneo and Magento
- Languages & technologies used:
- Java, Groovy, HSQLDB
- Spring, Camel, Akeneo, Magento, Spock, Git, Gradle
Nov 2016 - Mar 2019
2 years 5 monthsGermany
Development of ORBIT - Monitoring of Production Processes
BMW AG
- ORBIT has been gradually deployed since May 2017 as a monitoring system in the control of process control systems at BMW and some service providers.
- It consists of a web frontend and various backend tools communicating as native binaries for Windows, MacOS, and Linux.
- Tasks:
- Communicating with the client
- Responsible for architecture and implementation
- Integrating into the existing IT landscape
- Languages & technologies used:
- C, Go, mruby, Ruby, JavaScript, Sencha
- Git, Scrum, Jira, Docker, SSH, SSL, HTTP, Sockets
Sep 2016 - Mar 2017
7 monthsGermany
Development of CFK+ for real-time production visualization
BMW AG
- CFK+ is a JavaFX application for large screens to visualize downtime, KPIs and real-time alerts.
- Tasks:
- Communicating with the client, business units and IT
- Responsible for architecture and implementation
- Integrating into the existing IT landscape
- Languages & technologies used:
- Java, JavaFX, Hibernate, PL/SQL
- Git, Gradle, Oracle, LDAP, Jira
Aug 2015 - Dec 2015
5 monthsGermany
Further development of the online portal Wimdu
Wimdu GmbH
- Wimdu is an online platform connecting travelers with private owners of apartments and rooms. It’s Europe’s largest marketplace for private accommodations in over 120 countries.
- Tasks:
- Designing and developing private APIs for mobile clients
- Designing and developing public APIs for the affiliate program
- Interface development to integrate external data sources
- Languages & technologies used:
- Ruby, JavaScript, OAuth 2, MySQL
- Rails, Elasticsearch, Jira, Git, Scrum
Mar 2015 - Dec 2018
3 years 10 monthsGermany
Development of production and management reports
BMW AG
- Reports of up to 100 pages provide an overview of production and downtime, as well as related OEE and production metrics on a daily, weekly, monthly and annual basis.
- Tasks:
- Communicating with the client and business units
- Designing and developing the reports
- Developing a KPI engine for real-time calculation
- Integrating into the existing IT landscape
- Languages & technologies used:
- Java, JavaScript, Oracle, PL/SQL
- Eclipse BIRT
May 2014 - Feb 2015
10 monthsGermany
Development of the fleetboard.app for truck drivers
Daimler Fleetboard
- The fleetboard.app lets truck drivers check their location, get route info, log driving time and plan rest periods, view vehicle data and compare it with the fleet.
- Tasks:
- Designing and implementing various main components, including dashboard, time management, messenger, calendar and profile
- Integrating local and push notifications
- Languages & technologies used:
- Java, Android
- Git, Maven, protobuf, Robolectric
- Jira, Confluence, Scrum
Mar 2014 - Aug 2014
6 monthsGermany
Further development of an online platform for office supplies
papersmart GmbH
- As part of market expansion to the private customer segment, existing processes were adapted and new workflows introduced.
- Tasks:
- Designing and implementing new payment processes
- Integrating new payment systems
- Database and infrastructure migration
- Conducting load and performance tests
- Languages & technologies used:
- Ruby, JavaScript, HTML, CSS, PostgreSQL
- Rails, PayOne, ActiveMerchant
- Git, Scrum
Jan 2012 - Dec 2014
3 yearsGermany
Development of the mobile alerting solution maintcall
BMW AG
- As part of a system replacement, an alerting solution was developed to model escalation processes and transmit production disturbances to maintenance.
- Tasks:
- Responsible for architecture, implementation and deployment
- Defining interface specifications
- Implementing the backend and push service
- Implementing mobile clients for Android, iOS and Windows Phone
- Implementing the admin interface as a web application
- Developing the Visio plug-in to model escalation sequences
- Languages & technologies used:
- Java, Ruby, JavaScript, Objective C, C#, Visual Basic, Oracle
- Rails, ExtJS, Android, iOS, .NET, Visio, BEA, Git
- Scrum, Jira
Jan 2008 - Dec 2011
4 yearsLeipzig, Germany
Tool for collaborative software model development
Universität Leipzig
- As part of a research project, a generic web tool was developed for collaborative modeling and development of software product lines with strong real-time collaboration support.
- Tasks:
- Designing the system architecture
- Implementing the backend and push services
- Implementing the web application and modeling editor
- Conceptual analysis, development and implementation of algorithms for conflict resolution strategies
- Languages & technologies used:
- Ruby, JavaScript, MySQL
- Rails, ExtJS, InfoViz
- SVN, Redmine
Languages
German
NativeEnglish
Advanced Education
Universität Leipzig
Master of Science · Computer Science · Leipzig, Germany
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