Patrik Walter

Expertise

Projects

• Migration from on-premise to Kubernetes

  Mercedes-Benz Tech Innovation GmbH

  As part of a seven‐person Scrum team, I successfully carried out the migration of existing projects to the company’s internal Kubernetes platform. This complex task required careful planning, coordination, and collaboration within the team to ensure that the migration went smoothly and there were no interruptions for the customer. Through our expertise in Kubernetes and our agile approach, we were able to complete the project on time and effectively. The result is a powerful and scalable platform that improves the operational efficiency of the customer and ensures the future viability of the company.

  • Docker
  • Kubernetes
  • Helm
  • Jenkins
  • Git

• FluentNihongo

  Mercedes-Benz Tech Innovation GmbH

  As a member of a team of four developers, I actively contributed to the development of the company’s internal secret scanner. My contribution focused on implementing new features to improve the performance and functionality of the scanner. With my expertise in programming and understanding of customer requirements, I was able to effectively contribute to the development and advance the project.

  • Java
  • Spring
  • JMH
  • Git

• GitHub Action for SecHub

  Mercedes-Benz Tech Innovation GmbH

  I contributed to the development of the open‐source project SecHub by developing a GitHub Action. My work focused on ensuring that the tool can be seamlessly integrated into existing workflows and enables quick and efficient security checks of applications.

  • TypeScript
  • Git

• Document Management

  Onventis GmbH

  As a member of a team of four developers, I developed a new feature within the product that allows users to create templates for their documents. The feature includes the ability to select different field types, load master data from the product, and maintain various events. The result is a user‐friendly function that provides the product’s users with increased flexibility and efficiency in document creation.

  • C#
  • JavaScript
  • ASP.NET
  • Vue.js
  • HTML
  • CSS
  • MongoDB
  • Git

• Recreation of website and webshop

  NCV GmbH

  I modernized the website and webshop by designing a new software architecture and leading a team of five developers. Together, we completely rewrote the frontend, backend, and services to connect to the ERP system Microsoft Dynamics AX. The result is a modern and powerful website that provides customers with an improved user experience while also increasing operational efficiency

  • C#
  • .NET Web API
  • JavaScript
  • X++
  • ASP.NET
  • knockoutjs
  • HTML
  • CSS
  • LESS
  • MSSQL
  • TFVC
  • RabbitMQ

• iSales

  NCV GmbH

  On behalf of the field service team, I developed an iOS app that allows employees to access the master data of the company’s ERP system and write travel reports at any time. To ensure that employees can access the data even without an internet connection, I implemented incremental synchronization. In this project, I developed the iOS app, REST API, and services to ensure seamless integration with the ERP system Microsoft Dynamics AX. The result is a reliable and effective solution that makes the work of field service employees easier and increases productivity.

  • C#
  • .NET Web API
  • Objective-C
  • Swift
  • C
  • X++
  • ASP.NET
  • MSSQL
  • SQLite

• FluentNihongo

  Private

  I have developed a platform that enables efficient vocabulary and kanji learning for the JLPT. My platform consists of a frontend, an API, and a simple data editing application.

  • TypeScript
  • Aurelia
  • Python
  • Django
  • Angular
  • Electronjs
  • PostgreSQL
  • SQLite
  • Git

Professional Experience

• Software Engineer @ Monochrome

  Jul 2011 - Jun 2016

  • Led the design and implementation of scalable and robust software architectures to enhance maintainability, system performance and reliability
  • Enforced coding standards and best practices, significantly improving code quality, readability, and maintainability, leading to a more efficient development process and reduced technical debt
  • Integrated security into the DevOps pipeline by automating security checks, conducting regular vulnerability assessments, and implementing continuous monitoring, resulting in enhanced application security and compliance
  • Redesigned and optimized database data structures, improving performance, enhancing maintainability, and reducing operational costs

  • TypeScript
  • Express.js
  • NestJS
  • Node.js
  • React
  • Next.js
  • Vue.js
  • Tailwind
  • HTML
  • CSS
  • MySQL
  • PostgreSQL
  • InfluxDB
  • Docker
  • GitLab
  • AWS

• Software Engineer @ Freelance

  2023/05 - now

  • Engaged in comprehensive discussions with clients to gather and analyze project requirements, ensuring a thorough understanding of their objectives and expectations
  • Executed the development and integration of tailored software features in alignment with client specifications, demonstrating adaptability to diverse project needs
  • Provided expert consultation on optimizing business processes, offering strategic insights to enhance operational efficiency and align technology solutions with organizational goals

  • NodeJS
  • TypeScript
  • Express.js
  • MySQL
  • Docker
  • AWS
  • CircleCI
  • Swift
  • Figma

• Software Engineer / Security Deputy @ Mercedes-Benz Tech Innovation GmbH

  2021/01 - 2023/03

  • Migration from on‐premise to a managed Kubernetes platform to improve reliability and performance
  • Definition and enforcement of quality standards in the development process to improve software quality
  • Implementation of DevSecOps practices to increase the security and quality of projects
  • Increase in company security through active participation in the Security Competence Group and identification and resolution of security issues in various projects
  • Optimization of the integration of security tools by developing GitHub Actions
  • Creating security awareness within the company by developing a secret scanner that facilitates finding and removing sensitive data in repositories

  • Java
  • Kotlin
  • NodeJS
  • JavaScript
  • TypeScript
  • Angular
  • React
  • NestJS
  • MSSQL
  • PostgreSQL
  • Docker
  • Kubernetes
  • Ansible
  • Jenkins
  • GitHub Actions
  • Black Duck

• Software Engineer @ Onventis GmbH

  2018/01 - 2019/06

  • Conceptualization and development of an iOS app to increase field service efficiency by providing real‐time access to the ERP system
  • Refactoring and redesigning projects to improve scalability and maintainability, and to increase code quality
  • Integration of a PIM system into all relevant systems for efficient updating of product information for the catalog and online shop
  • Responsible for maintaining the company’s infrastructure and managing iOS devices for all employees

  • C#
  • JavaScript
  • Vue.js
  • MSSQL
  • MongoDB
  • Angular

• Team Lead Software Development @ NCV GmbH

  2016/07 - 2017/12

  • Conceptualization and development of an iOS app to increase field service efficiency by providing real‐time access to the ERP system
  • Refactoring and redesigning projects to improve scalability and maintainability, and to increase code quality
  • Integration of a PIM system into all relevant systems for efficient updating of product information for the catalog and online shop
  • Responsible for maintaining the company’s infrastructure and managing iOS devices for all employees

  • C#
  • JavaScript
  • Objective-C
  • Swift
  • HTML
  • CSS
  • X++
  • Microsoft SQL Server

• Software Developer @ NCV GmbH

  2011/01 - 2016/06

  • Conceptualization and development of an iOS app to increase field service efficiency by providing real‐time access to the ERP system
  • Refactoring and redesigning projects to improve scalability and maintainability, and to increase code quality
  • Integration of a PIM system into all relevant systems for efficient updating of product information for the catalog and online shop
  • Responsible for maintaining the company’s infrastructure and managing iOS devices for all employees

  • C#
  • JavaScript
  • Objective-C
  • Swift
  • HTML
  • CSS
  • X++
  • Microsoft SQL Server