Marijn Scholtens

Senior Cloud Software Engineer

Düsseldorf, Germany

Experience

Oct 2024 - Feb 2025
5 months
Germany

Senior Cloud Engineer

Riverland Reply GmbH

Created a selfhosted-runner in an EKS cluster using GitHub Actions workflows. Extended dashboard for displaying status of multiple planned workflow jobs. Implemented monitoring concept with Pushgateway, Prometheus and Grafana. Implemented DynamoDB database for metrics collection.

Nov 2023 - Apr 2024
6 months
Düsseldorf, Germany

Java Backend Developer

Randstad Digital Germany AG

Development of a portal for KYC process at a bank. Built multiple backend services and related PostgreSQL databases using Liquibase and Docker. Connected multiple REST interfaces. Wrote tests and quality assurance. Deployed services to an Openshift cluster.

Jun 2023 - Aug 2023
3 months
Neuss, Germany

Java Backend Developer

Creditreform e.V.

Further development of debt collection backend software used in over 130 branch offices. Support of multiple database migrations from MongoDB to PostgreSQL. Refactoring, bugfixing and testing. Improved Scrum process and general team organization. Created both technical and process-relevant documentation.

Mar 2022 - Oct 2022
8 months
Bonn, Germany

Fullstack Developer / DevOps Engineer

Senacor Technologies AG

Further development of a portal for booking test drives for end customers through company dealers. Backend development and testing. Design and connection of REST interfaces between frontend and backend. Maintenance of ElasticSearch, monitoring progress in Kibana. Creation of documentation and instructions. Presenting results to client after each sprint. Securing REST interfaces with role & rights assignment and secrets management.

Aug 2021 - Mar 2022
8 months
Bonn, Germany

Fullstack Developer

Senacor Technologies AG

Built a portal for recommending charging equipment best suited for customers' electric cars. Developed core algorithm for generating recommendations. Backend development and testing. Design and connection of REST interfaces between frontend and backend. Created documentation e.g. architecture diagrams and instructions. Customer consultation for feature development. Training of new colleagues.

Mar 2021 - Jul 2021
5 months
Heimertingen, Germany

Java Developer / Network Engineer

Blackned GmbH

Integration of a network protocol into an existing network stack for use in an ad-hoc mobile network. Development of Java sockets. Extension of an interface with Vaadin. Configuration of a firewall. Testing and quality assurance.

Sep 2020 - Jan 2021
5 months
Düsseldorf, Germany

Platform Engineer

Accenture Technology Solutions GmbH

Development of a Kubernetes controller in Go for automatic management of development projects. Maintenance of existing components. Planning and documentation. Contribution to open-source project Crossplane.

Feb 2020 - Sep 2020
8 months
Düsseldorf, Germany

Java Frontend Developer

Accenture Technology Solutions GmbH

Feature development from requirements specification. Development of frontend masks. Bugfixing, maintenance and care. Testing and quality assurance. Data analysis.

Aug 2019 - Jan 2020
6 months
Düsseldorf, Germany

Java Backend Developer / DevOps Engineer

Accenture Technology Solutions GmbH

Design and implementation of microservices in backend area. Connection of interfaces to frontend. Setup and maintenance of developer pipelines with Jenkins. Setup of monitoring with Grafana and Prometheus. Creation of documentation and support of takeover by new offshore colleagues.

Feb 2019 - Aug 2019
7 months
Düsseldorf, Germany

Java Backend Developer / Business Analyst

Accenture Technology Solutions GmbH

Takeover of codebase in poor condition. Feature development. Improving code quality by adding tests and documentation. Maintenance and deployment of new builds. Requirements analysis and presentation of results to client. Replacement of core algorithm for calculating various scenarios.

Dec 2018 - Jan 2019
2 months
Düsseldorf, Germany

Java Developer

Accenture Technology Solutions GmbH

Introduction to corporate culture. Training in Java. Training in agile working. Training in Spring Boot. Achievement of Java OCA and Professional Scrum Developer I certificates.

Mar 2018 - Nov 2018
9 months
Munich, Germany

Java / Python Developer

Technical University Munich

Design of protocol extension for Random Access Protocol for use in 5G. Implementation of network simulator in Java. Execution of experiments and measurements. Implementation of data analysis tool in Python. Data analysis in tool, e.g. creating graphics. Writing scientific thesis with presentation of results and conclusions.

Aug 2017 - Mar 2018
8 months
Munich, Germany

Embedded C / Python Developer

Technical University Munich

Attended lecture "Broadband Communication Networks". Design of network protocol for determining network size among group of microcontrollers. Implementation of protocol in Embedded C in firmware of "OpenWSN" project. Implementation of control client in Python. Execution of experiments and measurements. Collection and processing of results for scientific paper.

Mar 2017 - Aug 2017
6 months
Munich, Germany

Network / Linux Engineer

Technical University Munich

Setting up networks with computers and Cisco router. Implementation of static and dynamic routing. Implementation of security measures like DNSSEC, IPSec and TLS. Configuration of firewall using iptables. Implementation of WLAN and security. Setup of NAT and DHCP. Comprehensive packet analysis with Wireshark. Linux shell scripting.

Summary

Senior Software Engineer mit einem Master-Abschluss in Informatik und über 6 Jahren Berufserfahrung in Backend-Entwicklung, Cloud Engineering und DevOps in internationalen Umfeldern. Ich spezialisiere mich auf maßgeschneiderte Backend- und Cloud-Lösungen mit einem tool-agnostischen Ansatz. Durch die Nutzung von KI-Tools wie ChatGPT kann ich schnell Anwendungen in jeder Backend-Programmiersprache entwickeln, APIs entwerfen und Cloud-Infrastrukturen mithilfe von IaC für alle gängigen Cloudanbieter aufbauen, unabhängig von vorheriger spezifischer Erfahrung. Darüber hinaus erstelle ich optimierte CI/CD-Pipelines und entwerfe containerisierte Umgebungen für Softwaremanagement und Monitoring. Mit meinen Soft Skills und Scrum-Kenntnissen trage ich zur Verbesserung der Team-Effizienz bei. Ich blicke gerne über den Tellerrand und stelle sicher, dass Lösungen nicht nur gut entwickelt, sondern auch effektiv vermarktet werden.

Languages

Dutch
Native
English
Advanced
German
Advanced
Spanish
Intermediate
French
Elementary

Education

Sep 2016 - Nov 2018

Technische Universität München

Informatik · Munich, Germany

Sep 2012 - Aug 2016

Reichsuniversität Groningen

Informatik · Groningen, Netherlands

Certifications & licenses

Certified Open Source Developer for Enterprise

Linux Foundation

Microsoft Certified: Azure Administrator Associate

Microsoft

Aviatrix Certified Engineer Hybrid Cloud Specialty

Aviatrix

Professional Product Discovery and Validation

Scrum.org

Aviatrix Certified Engineer Multicloud Network Professional

Aviatrix

HashiCorp Certified: Terraform Associate 003

HashiCorp

PAL – Evidence-Based Management

Scrum.org

Professional Scrum Facilitation Skills

Scrum.org

Professional Scrum Product Backlog Management Skills

Scrum.org

Professional Scrum with User Experience I

Scrum.org

Scaled Professional Scrum

Scrum.org

Certificate of Cloud Security Knowledge (CCSK v5)

Cloud Security Alliance

Certificate of Competence in Zero Trust (CCZT)

Cloud Security Alliance

Certified Blockchain Architect

Blockchain Council

Certified Blockchain Developer

Blockchain Council

Linux Foundation Certified IT Associate

Linux Foundation

OpenTelemetry Certified Associate

Linux Foundation

Google Cloud Certified Associate Data Practitioner

Google

Aviatrix Certified Engineer Multicloud Network Cloud Backbone Specialty

Aviatrix

GitHub Actions

GitHub

GitHub Foundations

GitHub

AWS Certified Machine Learning Engineer Associate

AWS

Aviatrix Certified Engineer Multicloud Network Security Specialty

Aviatrix

Kubernetes and Cloud Native Security Associate

Linux Foundation

AWS Certified AI Practitioner

AWS

Certified AppSec Practitioner

SecOps Group

Certified Blockchain Practitioner

SecOps Group

Certified Cloud Security Practitioner-AWS

SecOps Group

Microsoft 365 Certified: Fundamentals

Microsoft

Microsoft Certified: Security, Compliance, and Identity Fundamentals

Microsoft

AWS Certified Data Engineer Associate

AWS

Certified GitOps Associate

Linux Foundation

Oracle Cloud Data Management Certified Foundations Associate

Oracle

Oracle Cloud Infrastructure AI Certified Foundations Associate

Oracle

Oracle Cloud Infrastructure Generative AI Certified Professional

Oracle

Google Cloud Certified Professional Cloud Architect

Google

Professional Agile Leadership I

Scrum.org

Prometheus Certified Associate

Linux Foundation

AWS Certified Security Specialty

AWS

Open Telekom Cloud Architect

T-Systems

Professional Scrum Product Owner I

Scrum.org

Professional Scrum Product Owner II

Scrum.org

Professional Scrum with Kanban I

Scrum.org

Google Cloud Certified Associate Cloud Engineer

Google

AWS Certified Solutions Architect Associate

AWS

Professional Scrum Master I

Scrum.org

Professional Scrum Master II

Scrum.org

AWS Certified Solutions Architect Professional

AWS

Microsoft Certified: Azure AI Fundamentals

Microsoft

Microsoft Certified: Azure Data Fundamentals

Microsoft

Neo4j Certified Professional

Neo4j

Neo4j Graph Data Science Certification

Neo4j

AWS Certified DevOps Engineer Professional

AWS

Alibaba Cloud Certified Associate

Alibaba

Oracle Cloud Infrastructure Certified Foundations Associate

Oracle

Tencent Cloud Practitioner

Tencent

Aviatrix Certified Engineer Multicloud Network Associate

Aviatrix

Aviatrix Certified Engineer Multicloud Network Automation Specialty

Aviatrix

Salesforce Certified Associate

Salesforce

Certified Jenkins Engineer

CloudBees

Kubernetes and Cloud Native Associate

Linux Foundation

AWS Certified SysOps Administrator Associate

AWS

Google Cloud Certified Cloud Digital Leader

Google

Docker Certified Associate

Mirantis

Microsoft Certified: Azure Fundamentals

Microsoft

AWS Certified Developer Associate

AWS

AWS Certified Cloud Practitioner

AWS

Technology Architect Associate

Accenture

Oracle Certified Associate Java 8

Oracle

Professional Scrum Developer I

Scrum.org