Description

Hello my potential client, welcome to my profile!

I am a backend engineer with 4 years of experience in microservice development that power real applications. My goal is to make you happy with your software solution.

I will help you to:

- design, build and run your backend service

- find a cost-effective hosting solution that fits your needs and budget

- develop in Java + Spring Boot, Kotlin and Go

- write and set up tests

- document every step so it's easy for future developers to understand and maintain

- pick and work with the right database (MongoDB, PostgreSQL, MSSQL, CosmosDB, Redis) and cloud platforms (Azure, AWS) that work for your product

Looking forward to collaboration with YOU!

Languages

German
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Paris (up to 50km)

Mercedes-Benz AG
Backend Software Engineer (OCPP Project)
DIGITAL AND IT
June 2024 - Today (2 years)
• Developed backend for private charging stations, implementing OCPP protocols via Java Spring Boot and WebSockets.
• Finished feature translation and enhancement in 6 months from OCPP version 1.6 to 2.0, and then 2.1, improving protocol support and unlocking 20% more functionalities for EV charging infrastructure.
• Created reusable Azure DevOps pipeline templates, improving CI/CD efficiency for 8+ separate products within the department, reducing effort duplication.
• Created and maintained Docker files for scalable and efficient deployment of microservices.
OCPP Azure DevOps Java MongoDB AWS
Mercedes-Benz AG
Backend Software Engineer (Charging Services)
DIGITAL AND IT
August 2022 - June 2024 (1 year and 10 months)
• Designed and developed a backend gateway which unites 8 independent backend services with frontend service for customer support teams to view customer car details, manage licenses, and perform actions like firmware updates or certificate downloads.
• Increased test coverage from 20% to 96% in two years, reducing production bugs and ensuring higher code reliability.
• Upheld a stable production environment, supported 30-50 active users without service disruptions.
• Proactively reviewed 2+ pull requests per week, enhancing code quality and reducing deployment defects.
• Contributed to user access management architectural decisions, improving system maintainability.
Microsoft Azure Azure DevOps API
Mercedes-Benz AG
Software Engineer (SAP ALE Project Lead)
DIGITAL AND IT
August 2020 - August 2022 (2 years)
• Took ownership of SAP ALE integrations, managing connections across 21 internal SAP systems to ensure efficient data exchange for materials, invoices, and other business-critical information.
• Resolved approx. 10 business requirement tickets per month with an average response time of 4 hours, achieving 100% satisfaction from internal stakeholders.
• Trained and mentored 2 junior employees, accelerating their onboarding process, enhancing team productivity.
• Led a migration project for 50+ interfaces and message flows across SAP systems, ensuring smooth migration and minimizing disruptions to daily business operations.
• Conducted 6 stakeholder workshops for 6 independent business teams, to align on timelines, interface selection, and deprecation of obsolete connections.
• Independently resolved issues for 5+ complex SAP system integrations, reducing reliance on external experts and saving €150 000/year in consulting costs.