Recommended expert
Sebastian Thees
Software Engineer / Cloud Engineer
Experience
Jan 2020 - Feb 2022
2 years 2 monthsCologne, Germany
HybridSoftware Engineer / Cloud Engineer
OC Fulfillment GmbH
- Hybrid role as the first software engineer in the company to bootstrap the organization, laying out technical foundation and advising management on organizational aspects.
- Set up the SaaS platform architecture, selected languages and tools, and designed processes to deliver customer value quickly and reliably.
- Designed and implemented build and continuous deployment pipeline with multi-tenant approach enabling extreme scaling of the SaaS platform.
- Established initial ITSM and support processes, provided monitoring and alarming, and participated in the on-call team.
- Proposed new approaches to scale the platform and improve backend interfaces to mitigate bugs and communication overhead.
- Mentored new employees and served as a trustful team member and lateral leader.
- Conducted interviews for technical roles.
- Used technologies: Typescript, Node.js, Bash, Google Cloud Platform (App Engine, Cloud Run, Cloud Functions, Google Endpoints, Firebase), GitHub Actions, Docker, Terraform, MongoDB, Firebase, REST APIs, GraphQL.
Jul 2019 - Dec 2019
6 monthsCologne, Germany
Research Engineer / Senior Software Engineer
REWE digital
- Conducted research in artificial intelligence and computer vision for image classification.
Mar 2017 - Aug 2017
6 monthsDurham, United States
Senior Software Engineer
commercetools
- Developed proof-of-concept for an integrated app-store–like integration service ('merchant center') for the commercetools frontend to allow customers to book feature-apps that install and configure automatically in Google Cloud.
- Contributed to creation of 'commercetools labs' to experiment with innovative ideas.
- Used technologies: Node.js, Docker, Kubernetes, Google Cloud, JavaScript, React.js, Redux.
Nov 2015 - Jun 2019
3 years 8 monthsCologne, Germany
Senior Software Engineer
REWE digital
- Led a 3–6 person cross-functional team for conception, implementation, and maintenance of shopping cart microservices (REST API and UI).
- Consulted product owners and architects on business and technical questions.
- Coordinated teams on common features, architecture, and collaboration.
- Conducted applicant interviews and assessed candidates.
- Counseled management on collaboration and organizational issues in technology context.
- Used technologies: Java, Kotlin, Groovy, Typescript, Docker, Kubernetes, Google Cloud, Ansible, Tomcat, Postgres, React.js, Apache Kafka, Redis, microservices architecture, Spring Boot, REST API, ELK stack, Jenkins, Bamboo, Debian Linux.
Feb 2012 - Nov 2015
3 years 10 monthsBonn, Germany
IT-Consultant / Software Engineer
T-Mobile Deutschland GmbH / T-Systems International GmbH
- Designed and implemented the SOA Backplane service repository for business services of T-Mobile and T-Home.
- Enhanced model-driven software approach (MDA) to generate database layer, entities, Eclipse RCP rich-client GUI, and web GUI, enabling rapid changes via UML model.
- Coordinated feature development between SOA repository and runtime team, improving quality and reducing customer complaints.
- Analyzed, estimated, and documented business requirements; supported and trained testing departments in India and Russia.
- Advised operations during go-live and production incidents, achieving minimal downtime.
- Counseled release management in release roadmap process, optimizing delivery.
- Used technologies: Java, UML, Hibernate, Eclipse RCP, Oracle DB, JBoss, Solaris, Red Hat Enterprise Linux.
Apr 2008 - Feb 2012
3 years 11 monthsBonn, Germany
IT-Consultant / Software Engineer
Deutsche Telekom
- Developed the national and international central SOA infrastructure runtime component 'CAL' (HTTP and JMS) for T-Mobile and T-Home BSS.
- Optimized application for near real-time performance and low latency communication.
- Established SCRUM agile process, improving lead and cycle time.
- Introduced continuous integration with end-to-end testing, ensuring high quality and fewer bugs.
- Managed operation and third-level support of legacy SOA infrastructure.
- Migrated legacy SOA bus to the SOA Backplane.
- Supported customers during transition, achieving earlier shutdown of legacy SOA.
- Used technologies: Java, JMS (Tibco EMS, IBM MQ, ActiveMQ), HTTP(S), Web Services, Tomcat, WebLogic, TeamCity.
Summary
Cloud Engineer / Software Engineer for 15+ years in various positions. Committed to lean agile organizations & future leadership principles. Highly empathic team player. Ambitious fast learner with passion to solve problems and to communicate. Keen to work with other experts in an effective team based organization. Always supportive, never intrusive. Looking for projects with team spirit and people with a positive attitude who are eager to learn as I am and who want to build great products for their clients.
Skills
Programming Languages
- Typescript / Node.js
- Javascript
- Java
- Kotlin
- Shell Scripting / Bash
Frameworks & Platforms
- Express
- Next.js
- Spring / Spring Boot
- Google Cloud Platform
Infrastructure & Tools
- Docker
- Kubernetes
- Terraform
- Github
- Openapi
- Rest & Graphql Apis
- Microservices / 12 Factor Apps
Databases
- Mongodb
- Firestore
- Redis
- Postgres
- Jdbc / Hibernate
Soft Skills
- Leadership
- Good Listener
- Critical Thinking
- Teamwork
- Trustworthy & Reliable
- Enjoy My Work
Languages
German
NativeEnglish
AdvancedEducation
Oct 2005 - Jun 2007
Bonn-Rhein Sieg University of Applied Sciences
Master of Science in Computer Science · Computer Science · Sankt Augustin, Germany · 3.9 / 4.0
Oct 2002 - Jun 2005
Bonn-Rhein Sieg University of Applied Sciences
Bachelor of Science in Computer Science · Computer Science · Sankt Augustin, Germany · 3.5 / 4.0
Certifications & licenses
IREB® Certified Professional For Requirements Engineering-Foundation Level
IREB GmbH
ISAQB® Certified Professional For Software Architecture iSAQB® – International Software Architecture Qualification Board
ISAQB® – International Software Architecture Qualification Board
ITIL Foundation
APMG International
Prince2 Foundation
APM Group
Professional Scrum Master (PSM I)
scrum.org
Professional Scrum Product Owner I (PSPO I)
scrum.org
Sun Certified Java Programmer, Java 6, SCJP 6
Sun Microsystems
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