Phoenix IT

Sustainable Software Engineering

Hello, I'mJacob Grieger
and I offer sustainablesoftware solutionsandIT consultingwith 12+ years of experience from the Zugspitz region— Sustainable Software Engineering at the highest level

Discover my services

Discover myservices

My Services

Sustainable software solutions with over 12 years of experience: From modern web applications to scalable cloud architectures.

Software Development

Efficient and sustainable software solutions that support your business processes and provide measurable value to your company.

Tech Stack:

Go.NETPowerShellGreen Software

Distributed Systems

Development of flexible and resilient architectures for applications with high requirements for scalability, availability, and performance.

Methodologies:

SREDevSecOpsGitOpsCI/CDEvent-driven Architecture

Open-Source Software

Integration of established open-source solutions and active contribution to the open-source ecosystem as one of the maintainers of the Kubernetes distribution K2s.

Open Source Projects:

NATSKubernetesKeycloakPostgreSQLLinkerdOTelK2s

Cloud Hosting

Design and implementation of cost-effective cloud solutions with particular consideration of data protection and security requirements. Also planning of failover scenarios and development of exit strategies.

Tags:

AWSAzureGCPTerraform/OpenTofuSaaSPaaSIaaSManaged K8sServerlessGDPR/DSGVO

Web Apps

Individual and user-friendly web applications with modern technologies and thoughtful UX design, whether as a statically generated website or interactive app.

Tech Stack:

AstroSveltekitTailwind CSSMarkdownPWAWeb ComponentsHTML5

Desktop Apps

Whether slim command-line tool or user-friendly application with modern user interface.

Operating Systems:

LinuxWindows

Containerization

Strategic migration of existing applications into the world of containers.

Technologies:

DockerDocker ComposePodmanBuildahKubernetesOCI

Testing

Development and implementation of an individual testing strategy for your systems.

Methodologies:

Risk-based TestingBehavior-Driven DevelopmentMockingDSL

Consulting

Strategic consulting for software development processes, technical modernization, and successful digital transformations.

Focus Areas:

Lean/Agile Software DevelopmentRequirements EngineeringDomain-Driven DesignDomain Story TellingEvent StormingCI/CDTrunk-based DevelopmentClean CodeTeam Culture

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Projects &Clients

From open-source contributions to individual client solutions – an insight into my work.

Open Source Contribution

K2s - Kubernetes Distribution

Open SourceMaintainer

Kubernetes distribution specifically developed for healthcare environments. Enables secure containerization of medical device software and clinical applications. As one of the maintainers, I bring enterprise experience into the open-source community.

KubernetesGoPowerShellHealthcareEnterprise