KTH Royal Institute of Technology

EIT Digital Master School

Technische Universität Berlin

Swinburne University of Technology

Freelance Senior Software Engineer in Cloud, Edge and IoT, Agile Team Lead and Remote Digital Transformation Leader

Freelance Senior Software Engineer in Cloud, Machine Learning Engineer, Edge and IoT, Agile Team Lead and Remote Digital Transformation Leader

Tobias Wiens

Technical Lead

In short: 
• Kubernetes
• Kubernetes Cluster Hardening
• HELM 
• Rancher K3s and K8s
• Google Cloud (GCP)
• Networking, Firewall

Asklepios

Site Reliability Engineer

Skills: IT Leadership · Leading Development Teams · Agile Methodologies

TÜV Rheinland Group

Agile Coach

In short: 
- Google Cloud, Azure
- GKE: managed Kubernetes in Google Cloud
- Kubernetes Cluster migrations
- Kubernetes Dev, Staging, Prod: Concepts, Setup, Isolation, Maintenance
- DevOps flow/tools/setup in Kubernetes: HELM, Terraform, containers, runC, Infrastructure as Code (IaC), Docker, Ingress, OAuth Flow 
- Microservices, Authentication, OAuth
- CI/CD Pipelines
- Jenkins
- Python
- Microservice Architectures and Design

Wundermart

Senior DevOps Engineer

In short: 
• Product Development and Infrastructure of a highly scalable and maintainable product (Kanban Scrum)  
• Facilitated an Ideation Workshop to find/validate core aspects of the product to start a well focused Software Development Life Cycle
• Working with a great team, leveraging everyone’s abilities and skills
• DevOps Tech Lead in Distributed Systems, IoT, Edge Computing, ML
• Python
• DevOps 
• Infrastructure as Code (IaC)
• Engineering Culture, Clean Code and Architecture Sessions, Retrospectives, Agile Processes, Software and System Architecture including Machine Learning
• Python, IoT, CI/CD
• Integration of Machine Learning into DevOps Culture (CI/CD - MLOps) 


Challenges:
• Working with cutting edge technologies for which best practices have not even emerged yet
• Reaching out to developers and creators to get advice on best practices and fostering those in a team 
• Building a maintainable product with high quality and strong scalability


Success Factors:
• Working with a great, open minded, flexible, positive and energetic team 
• Software Quality review, pipeline and automation 
• High Software Quality allowed us to iterate very quickly in order to meet fast changing demands
• Mentoring in Software Quality, Agile Management Practices and Best Practices 
• Keeping software design and implementation lean and aligned with business requirements. 

Technologies:
Python, AWS, EC2, Kinesis, Micro Service, CloudFormation, SageMaker, CI/CD, Bitbucket Cloud, Git, IoT, AWS Greengrass, Linux, ARM, MQTT, S3, Cognito, Automated Quality Assurance, On the Edge Machine Learning, Sonar, flake8, Pub/Sub, AWS Lambda, Datadog

MAHLE

In short:
•	Replacing a distributed computing cluster software with the ProActive Suite. 
•	Onboarding and preparing the project remotely and implementing a working use-case during a short on-site period. 


Challenges: 
•	Implementing a solution which can run on their cluster with strong isolation and access restrictions policies in place. 
•	Being solution oriented while understanding that many people are involved in accessing and adding software to their running cluster. 
•	Involvement of all people affected by changes and finding common ground to operate fast and solution oriented in a short time frame. 


Success Factors: 
•	Strong ActiveEon teammates with precise preparing of a compatible solution for a cluster which is in use by many departments. 
•	Frequent presentation of progress to fast converge towards a matching solution. Professional and positive communication to engage all participants to strive towards success. 
•	Early understanding of team and decision structures to bring consensus and flatten potential friction by not surprising anyone involved or directly involved. 
•	Deep knowledge of Software Engineering, Agile Management Practices, solution-oriented working and working in the sweet spot of complexity vs outcome expected by the customer. 
•	Working with a strong team and client towards a new solution and being able to quickly implement agile methodologies.

Daimler Truck AG

Senior Software Engineer

In short: 
•	Developing a distributed Iot Mining Solution with the ActiveEon ProActive software.
•	Clearly understanding core challenges and finding solutions bringing most value, as well as architecting custom software solutions.


Challenges: 
•	100% remote project. Team was distributed all over the world. 
•	Precisely understanding the challenges mining personnel has. Finding the best trade-off for the most value outcome. 
•	Documenting and formulation custom software so that another software team could implement according to the specification. 
•	Gathering in depth understanding within a remote team requires listening and many questions, using methodologies which give energy rather than drain energy.


Success factors: 
•	Knowing methodologies to overcome challenges and which a team accepts to adopt.  
•	Daily meetings. 
•	Documentation and summarizing, in written form, each meeting and getting feedback to converge understanding. 
•	Deep technology knowledge from hardware over software to Cloud and development practices.
•	 Solution oriented thinking and working. 
•	Producing a daily presentable outcome to converge expectations and give trust through transparency. Working with an open minded, experienced and success-oriented team.

Mining

Internet of Things Consultant

In short: 
•	Started an eCommerce company, found a niche to sell a product, produced, marketed and sold a product. Also doing customer support. 
•	Selling at peak times up to 10 products a day. 
•	I closed the company when it was on the verge of becoming my primary occupation, but I decided to stay inside Software Engineering.


Challenges: 
•	Key challenges are often market fit and business related. I believe to strive for excellence as a Software Engineer/Consultant one needs to understand many business aspects.
•	Finding a niche to be sure to sell a product. 
•	Collecting data and enough indications to be sure to invest in stock. 
•	Finding the most reliable and fitting producers from hundreds. 
•	Doing personal quality control of samples and understand which product fits best for the customer.
•	 Marketing: commercials, pictures, copy writing and launching a product. Doing it all by myself and contracting the right people 
•	While travelling with constantly changing locations within Europe and Asia, so 100% remote.


Technologies: 
Google Cloud Platform, Google Kubernetes Engine, Angular 2, Java, Python, Typescript

3FSC

Founder of 3FSC

In short: 100% remote onboarding and project execution with a short time frame.

Banking

Java Software Developer in Cloud and Distributed Systems.

Designing, developing, testing, deploying microservices with Spring, Hibernate in a DevOps philosophy with a strong focus on test-ability, maintainability and readability. 

Building and maintaining CD/CI pipelines with jenkins, docker and automating the complete test chain from unit-test, integration-tests, black-box tests and user interface tests until automated deployment of the product.

Deploying and working with AWS, Google Cloud, Azure, Docker, Jenkins, Kubernetes, OpenShift.

Working with customers, including fortune 500 companies, in proof of concept scenarios where high achievements and manoeuvring cooperate contexts is necessary.

Digital transformation leader in remote work and remote team responsible for retrospectives.

Technologies: Java, Java Spring, JUnit, Testing, Docker, Golang, Python, JavaScript, Angular 2, Amazon AWS, Amazon EMR, Amazon Lambda, Google Cloud, Google App Engine, Google Cloud Functions, Machine Learning (Linear Regression, Bayes, Boosting, Ansible, Expectation Maximization, Support Vector Machines, K-Means), Virtualization Technologies, Big Data, Databases, Distributed Algorithms, Distributed Systems, Apache Flink, Web Services, Service Orientend Architectures, Puppet, Hadoop Distributed File System, Registrator, Weave, Consul, Etcd, Flannel, Backbone.js, Postgresql
GIT, SVN, Gradle, REST, GraphQL, YAML, XML, JSON,

ActiveEon

Software Engineer

Master thesis about: performance impact of Software Defined Networks on Apache Flink inside Docker containers.

Intern

Software Development for the Stratosphere Project (stratosphere.eu) with JavaSE. Furthermore I worked on automated provisioning of Apache Flink on Amazon AWS, with python, cloud init and Amazon EMR.

TU Berlin

Software Developer

Software Design and Implementation in C++