Marijn Scholtens
Senior Cloud Software Engineer
Experience
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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
Languages
Education
Technische Universität München
Informatik · Munich, Germany
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
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
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
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
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
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