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Securely Migrate Oracle Databases to Modern Cloud Architectures

In reality, database migrations are one of the most sensitive interventions. We at PROTOS therefore view migration as a controlled transformation process.

Insights from KubeCon: How PROTOS uses cloud-native technologies

KubeCon 2026: PROTOS on the lookout for trends in Amsterdam. We're examining which cloud-native innovations offer real added value for customer projects.

Real-time data in public transport – and how a cloud and edge architecture stabilizes it

We show where and why real-time information is lost along the system chain – and how these weaknesses can be sustainably remedied through a cloud & edge architecture.

From database monolith to modern cloud data architecture

Growing data volumes, heterogeneous access patterns and increasing demands for real-time processing - how modern cloud architectures avoid operational bottlenecks.

Overcoming outdated backends in public transport

Why modern mobility in public transport is failing due to outdated backends – and how cloud architectures are finally stabilizing the foundation.

Report: IT infrastructure modernization for a retail company

PROTOS takes over IT operations for a medium‑sized retail company and ensures optimized cybersecurity.

Cloud know-how in public transport

Collaboration and expertise are the keys to making a real impact in public transportation. Karsten Quellec, CTO at PROTOS, explains how we put this into practice.

The ESC today, thinking ahead

Multi-cloud operation with a new perspective: combination of AWS Global and ESC

Cloud sovereignty and digitalization in public transport

How can public transport companies strike a balance between digitalisation and sovereignty? Sebastian Ullrich and Karsten Quellec present possible solutions!

A wake-up call for public transport

Migration to the cloud is undoubtedly an important and correct step. But only refactoring allows the potential of the cloud to be leveraged!

Digitalization in public transport requires IT infrastructure

The will for digital transformation in public transport is there. What is needed? A more strategic understanding of IT infrastructure.

Focus on: Cloud transformation in public transport

Historically developed IT/OT infrastructures, demand for digitalisation: public transport is undergoing a period of transformation. The key to success: the cloud.

AWS European Sovereign Cloud – PROTOS is a launch partner

AWS European Sovereign Cloud creates a sovereign cloud infrastructure – PROTOS provides consulting, provisioning, and operation services as a launch partner.

Tool decisions in practice: Why we opt for GitLab in projects – and when we don’t

Tool decisions: We work with Azure DevOps, GitHub Enterprise and frequently with GitLab. In doing so, we constantly ask ourselves why!

Generative AI securely at work: automated ticket analysis in AWS Cloud

Secure and practice‑oriented: Automate AI‑supported ticket analysis in the AWS Cloud to significantly reduce the workload of qualified personnel.

Report: Complete IT operation for a car dealership

PROTOS takes over IT operations for a medium-sized car dealership with an attached workshop and ensures optimised cyber security.

Documentation in AI projects: the backbone for lasting success

Well‑designed documentation is not a nice‑to‑have but the operational backbone and a central strategic element in AI projects to ensure scalability and reusability.

Report: Complete IT operation for a medium-sized mechanical engineering company

We report on how we support our customer, whose IT department is heavily overloaded, by keeping their back free with PROTOS TecOps and enabling the further development of IT operations.

Documentation in IT: a success factor

Good IT documentation is not an annoying add‑on but the foundation for scalability, efficiency, and quality. At PROTOS, we want to provide insight into how we achieve this.

Crossplane: rethinking infrastructure management

Crossplane bridges the gap between code and reality, making it the key to a consistent, secure, and scalable infrastructure.

Focus on health data: IT security as a lifeline

Established IT service provider in the healthcare sector – PROTOS ensures secure operations and supports growth!

Apache Airflow and AWS: A powerful combination for data pipelines

Apache Airflow is used in many scenarios to orchestrate complex data processing and automation tasks. Read the project report now!

E-mobility meets cloud architecture & SIEM

Customer report: A public‑sector e‑mobility and utilities company is holistically supported by PROTOS in its operations, with a focus on cybersecurity.

Effective Password Management in Source Code: Secure Solutions with sops and AWS KMS

Customer Case: Implementation of sops in combination with AWS KMS to enable our customer to manage sensitive password files securely within source code.

Efficient Rail Replacement Service: The Benefits of a Centralized AWS Serverless Architecture

Customer project: Consolidating decentralized solutions for mapping rail replacement services across seven regions using AWS serverless services.

Security Upgrade for the Cloud: Successful Implementation of AWS Private Links

Customer project: The implementation of AWS PrivateLinks has enhanced our customer's network security and increased efficiency by consolidating external access points.

Innovative Solutions for Secure Multi-Account Network Communication in the AWS Cloud

We demonstrate how to establish secure network communication between different AWS accounts within AWS Organizations, as well as with external interfaces.

AWS-Multi-Account Structure and Security Automation: A Case Study from the Public Mobility Sector

Our customer from the public sector operates critical infrastructures. The goal is to modernize cloud‑native application environments in order to meet audit requirements in accordance with KRITIS regulations.

IaC Toolbox: Best Tools and Techniques

IaC Toolbox: An overview of the most important infrastructure-as-code tools such as Terraform, CDK, Pulumi, and Bicep – provisioning, automation, and configuration management.

Chat GPT and AWS: An Honest Assessment of AI Support for Customer Projects

The whole world is fascinated by ChatGPT. At PROTOS, we aim to provide a well‑founded assessment of which tasks ChatGPT can actually solve.

PROTOS Supports DB Regio Bus With Modern IT Infrastructure - AWS Cloud & Optimized Operating Times Save Over 114 Tons of CO2e

DB Regio Bus: Migration to the AWS cloud optimizes IT operating times, modernizes the infrastructure, and saves more than 114 tons of CO₂e through more efficient use of resources.

Introduction to Infrastructure as Code

Automate infrastructure provisioning instead of manual configuration: How IaC accelerates deployments and reduces errors with tools such as Terraform, CDK, or Pulumi.

Protect Your API With Authorization and Usage Plans in AWS API Gateway

AWS API Gateway is a service that enables developers to create, publish, maintain, monitor, and secure APIs for their applications at any scale.

Implementation of AWS MLOps at a Listed German Retail Group

PROTOS Technology has supported customers in implementing machine learning operations (MLOps) based on a robust and secure infrastructure.

Fielmann AG, Controlling Analytics - Definition and implementation of an AWS Analytics Lakehouse architecture

PROTOS implements an AWS Analytics Lakehouse architecture: Central data platform for omnichannel data, scalable ETL pipelines, and informed data-driven decisions.

Introduction to serverless computing with AWS API Gateway

Serverless APIs with AWS API Gateway: Scalable interfaces for Lambda & backends – secure communication, traffic control, and flexible costs without server operation.

Optimizing event-driven workloads with containers and AWS Serverless

DB Regio Bus: Practical report on the use of AWS API Gateway for serverless interfaces, secure communication, and scalable integration of backend services.

Migration and optimization of a travel platform for DB Regio Bus

DB Regio Bus: Migration and optimization of a travel platform into the corporate IT system – scalable cloud infrastructure, high availability, and secure integration of existing systems.

How Is This Serverless Tool Built? The PROTOS CloudAdvisor

PROTOS CloudAdvisor: Serverless AWS web tool for quickly evaluating your cloud infrastructure – modern architecture with S3, CloudFront, API Gateway, Lambda, and IaC.

Establish a Data Management Platform with Azure Synapse Analytics  

Customer project: Development of a central data management platform featuring a data lake, automated provisioning, and self‑service capabilities for big data and analytics projects.

Development of a Central Platform for Service Interruptions at DB Regio Bus

Central cloud platform for business interruptions—with AWS, DevOps, and CI/CD for fast coordination, transparency, and high system availability.

The Most Important Security Features for Setting Up and Using your Microsoft 365 Account

Set up Microsoft 365 securely: The most important security features such as MFA, Conditional Access, Defender and DLP to protect against cyber attacks and data loss.

What is DevOps?

What is DevOps? Learn how close collaboration between development and IT operations, automation, and CI/CD enable faster releases and more stable software.

Microsoft 365 – the office cloud entry for your company

Introducing Microsoft 365 in your company: How to successfully transition to the Office cloud with modern collaboration tools, flexible workplaces, and centralized IT management.

IaC Solutions for AWS Cloud 2020: which one is the right for you?

Infrastructure as Code for AWS: Comparison of CloudFormation, CDK, Terraform, SAM, and Amplify – which IaC solution is right for your project and team?

Deep Dive Into AWS Lambda – Part III

AWS Lambda Deep Dive Part III: Concurrency, Limits, and Monitoring—How to Optimize Performance, Scaling, and Operation of Serverless Applications

Deep Dive Into AWS Lambda – Part II

AWS Lambda Deep Dive II: Performance optimization, monitoring, error handling, and best practices for robust serverless applications.

Deep Dive Into AWS Lambda – Part I

AWS Lambda Deep Dive I: Triggers, permissions, execution models and the lifecycle of a function – in-depth architectural knowledge for serverless applications.

Dependency Management for AWS Lambda

Dependency management for AWS Lambda: How to deploy external libraries – with deployment packages, pip target options and reusable Lambda layers.

Introduction into serverless computing with AWS Lambda

Introduction to serverless computing: How AWS Lambda enables automated, scalable function execution without server management and reduces costs.

AWS Citrix Netscaler HA Solution

High availability of Citrix NetScaler in AWS: Architecture, AWS API integration, and failover strategies for fail-safe application delivery environments.

AWS DataSync – The data migration hub in your hybrid environment

Efficient data migration with AWS DataSync: How the service simplifies secure, fast data transfer between on-premises, AWS, and hybrid environments.

How to solve Machine Learning Challenges on AWS

Machine learning with AWS: How to solve data science problems and effectively use AWS ML services such as Rekognition, Comprehend and SageMaker.

Migration of an Oracle Siebel Application for a Financial Services Company

Migration of a complex Oracle Siebel environment from an on-premises data center to the AWS cloud.

Datacenter and Application-Migration for the DB Regio AG

Migration and consolidation of applications from multiple on-premises data centers to the AWS Cloud for DB Regio Bus.

Generative AI securely at work: automated ticket analysis in AWS Cloud

Digital HR tools are designed to reduce workload. Intelligent integration into a single solution delivers noticeable improvements. We show you how it works!