Martin Bausewein-IT Architect
Check rate
Experience
IT architect
NDA defense industry
- Assessment of a modernization concept for IT infrastructures including client workstations
- Development of an alternative concept focusing on data sovereignty and reducing provider dependencies
- Compilation of suitable alternative open-source products and solutions
- Design of a proof-of-concept approach for step-by-step evaluation of the options
IT architect
Daimler Truck AG
- Built an application stack in a VPC (IBM Cloud) to fully separate Mercedes-Benz environments
- Set up and switched VPN connections, including network and firewall configuration
- Rebuilt RHEL8 VMs with a business application (including nginx, Traefik proxy for OIDC) and Oracle database (multi-stage)
- Optimized and hardened components: hardening all components; monitoring stack with notifications (Telegraf, InfluxDB, Grafana); IDS/IPS stacks (firewall, fail2ban, ClamAV, Lynis); COS backup
Transition manager
Bilfinger SE
- Interim support to the project team for global WAN/LAN outsourcing covering about 700 sites
- Responsible for vendor management during WAN/LAN discovery and planning of transition and migration for WAN, LAN, service management and NOC
Project manager
Planta GmbH
- Consulting, analysis and planning to adapt standard planning systems to individual customer requirements
- Successful rollout of multi-project and portfolio management systems in traditional and agile environments
- Led the introduction of a hybrid planning system for the Baden-Württemberg police
- Oversaw a proof of concept (PoC) to evaluate planning systems for the Ministry of the Interior Baden-Württemberg
Transition manager
cunova GmbH
- Lead architect for non-SAP applications and security in a carve-out
- Analysis of on-premise IT & OT legacy systems, designing the future hybrid IT landscape, and planning the migration and vendor management for building the hybrid solution
- Assessment and advisory for implementing findings from a security audit of the parent company and developing an IT security concept
- Selection and management of IT service providers, setting up an ITSM framework, and technical management of the migration
- Support and advise during the transition to operations
IT Architect
Daimler AG / Daimler Truck AG
- Building a multi-stage VPC environment as part of the division split
- Managing the cloud risk process and implementing security requirements
- Planning and executing or managing the VPC setup including migration, testing and data cleanup
- Implementing an OSS monitoring and notification stack with integration of application and operational services; backup and disaster recovery concepts; hardening and monitoring; VPN connection, VPC network architecture including zones, policies, DNS; OIDC integration of the application
- Operations in the Application Management Service (AMS)
IT Architect
NDA Versicherung
- Designing an archive system for searching customer/insurance data after SAP shutdown
- Defining PoC reports for the search
- Data model including role and permission concept of the archive system
- Creating an operating model and implementing a container-based PoC (Docker Compose stack) with PostgreSQL database; admin container for data import; Tomcat application server with automatic certificate generation; BIRT engine with defined MVP reports
IT Architect
NDA Automobilzulieferer
- Consulting and feasibility analysis of a data crawler for consolidating data from various internal and external systems
IT Architect
Mercedes Benz / Daimler Truck / Daimler AG
- Creating a migration concept for a system landscape (Windows, RHEL, Kubernetes) from IBM Cloud to AWS
- Developing modernization strategies for legacy applications for Kubernetes operation, improving security and cloud maturity by introducing a service mesh
- Building a VPC with BYOK in IBM Cloud for rehosting legacy applications, including base configuration, system hardening, monitoring concept and coordination of the installation team
- End-to-end monitoring with Prometheus & Grafana for all components in the VPC stages (Kubernetes tenant, Windows and Linux VMs) with dedicated security audits, certificate and backup checks; central log stack with Elastic Stack (Elasticsearch, Kibana, Logstash)
- Performing hardening measures for Linux systems (RHEL, SuSE, Ubuntu) and specifying changes for custom developments
- Designing and implementing migrations from on-premise, private and off-premise cloud to IBM Cloud VPC
- Conducting PoC projects to evaluate modernization options for application architecture from legacy to container operation
- Supporting security audits, information classification and cloud risk processes, and deriving technical requirements and solutions
- Project management for switching providers of a media archive and preparing to eliminate a supplier dependency: process analysis and redesign; interface redesign; system decoupling concept and data migration; managing service providers and the internal project team
- Responsible for AMS operations of distributed applications on Linux and Windows servers
- Concepts for on-premise system and data migrations with minimal downtime
- Requirements, release and test management for the system landscape in the after-sales area
Root server operations
Bausewein IT GmbH
- Operating and administering Linux servers (Debian, Ubuntu, RHEL) with a focus on security, performance and stability
- Setting up and running various server services: mail service (postfix, dovecot, Spamassassin, rspamd, clamAV); databases (PostgreSQL, MariaDB/MySQL, Redis, InfluxDB); ticketing (Mantis BT); IoT stack (InfluxDB, MQTT, Grafana); monitoring (Telegraf, InfluxDB, Grafana); security (lynis, rkhunter, clamAV, fail2ban, ufw, crowdsec); virtualization (Proxmox, KVM, Qemu, Docker, Kubernetes)
- Continuous evaluation of system hardening and security concepts
Industry Experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology, Automotive, Government and Administration, and Insurance.
Business Area Experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Operations, Project Management, and Business Intelligence.
Summary
With many years of broad IT experience – more than 15 years in enterprise environments – I offer companies strategic and operational excellence in designing, securing and transforming complex IT landscapes.
I combine deep architecture and technology know-how with project experience in international corporations and mid-sized companies. My focus is on IT strategy, cloud and legacy architecture, IT security and transition management, especially in migrations, carve-outs and infrastructure modernizations. I stand for analytical thinking, goal-oriented action, a pragmatic work style and audience-appropriate communication.
Skills
- It Strategy & Enterprise Architecture (Ibm Cloud, Aws, Hybrid Clouds, Vpc, Byok)
- It Architecture & Infrastructure Modernization
- Transition & Migration Management, Carve-outs
- Planning & Management Of Complex Migrations (Cloud / Hybrid / Legacy)
- It Security, Hardening, Audit Support (Infrastructure & Processes)
- Open Source Stack (Monitoring, Mail, Security, Databases)
- Vendor Management & Itsm Frameworks
- International Project Experience In Corporate Environments
- Project Leadership & Technical Consulting
Languages
Statistics
Experience
Global Experience
Expertise
Profile
Frequently asked questions
Do you have questions? Here you can find further information.
Where is Martin based?
What languages does Martin speak?
How many years of experience does Martin have?
What roles would Martin be best suited for?
What is Martin's latest experience?
What companies has Martin worked for in recent years?
Which industries is Martin most experienced in?
Which business areas is Martin most experienced in?
Which industries has Martin worked in recently?
Which business areas has Martin worked in recently?
What is the availability of Martin?
What is the rate of Martin?
How to hire Martin?
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
Similar Freelancers
Discover other experts with similar qualifications and experience
Experts recently working on similar projects
Freelancers with hands-on experience in comparable project as a IT architect
Nearby freelancers
Professionals working in or nearby Schwetzingen, Germany
Most recent projects
FRATCH works with many companies and recruitment agencies. Here you will find our recently posted projects and opportunities.
