Welcome to pfeifer
Digital Engineering

Sebastian Pfeifer, M. Sc.

Freelance Solution Architect for Mission-Critical & Space IT Systems

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About me

Tired of unreliable systems? I turn complexity into resilient IT and software.

Just results.

Your systems are critical. So is getting them right. If you’re dealing with legacy software, overloaded teams, or projects that stall before they scale – you’re not alone.

As a freelance Solution Architect with 10+ years in satellite operations and mission-critical IT, I help you turn complexity into clarity. I design resilient, secure, and scalable IT and software solutions that actually work. Even when failure isn’t an option.

No fluff. No drama. Just results. If you’re looking for someone who takes ownership and delivers resilient IT for demanding environments, let’s talk.

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I don’t just build software - I analyze, optimize, and deliver mission-critical solutions that enhance reliability, efficiency, and operational excellence while ensuring strategic alignment with business objectives.

Services

What I Offer

With over 10 years of experience in software architecture, technical leadership, and operational system optimization, I specialize in designing and implementing robust, scalable, and high-availability software solutions for mission-critical environments.
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System Analysis & Optimization

Clear assessment with actionable recommendations.

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Solution Design & Operational Improvement

Cost-effective, Cloud native and reliable architectures.

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Mission-Critical Software Engineering

Stability, security, and efficiency for high-availability systems.

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API & Event-Driven System Integration

Scalable microservices, secure APIs, and optimized workflows.

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Technical Leadership & Consulting

Lead and guide Teams, implementing best practices for future-ready solutions.

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Space Domain Expertise & Operations Architecture

Specialized support for satellite operations, mission planning, and business process optimization—bridging technical systems with operational excellence in the space industry.

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Why Work With Me?
You get:

Over a decade in satellite operations, ensuring mission-critical reliability.
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Deep Operational Expertise
Strategic alignment of architecture, operations, and business goals – proven success even with small teams
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Technical leadership with business focus
Complex system modernizations with minimal resources – reduced project costs by 30%
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High impact
With hands-on experience as end user, developer, and manager, I ensure clear understanding across technical, business, and leadership domains
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Bridge-building communication
Robust solutions for demanding environments – including ISO 27001, technical hardening, and regulatory know-how
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Security & compliance

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Contact

Sebastian Pfeifer, M. Sc.
Freelance Solution Architect
Mission-Critical & Space Systems | Expert in Reliable End-To-End IT Solutions | Technical Lead
Linkedin
Pfeifer Digital Engineering
Sebastian Pfeifer
Orli-Torgau-Str. 3
D-54294 Trier

GERMANY

Impressum
Informationen über den Diensteanbieter:

Sebastian Pfeifer
Pfeifer Digital Engineering
Orli-Torgau-Str. 3
D-54294 Trier
Germany

USt-IdNr.: DE453125272

Berufsbezeichnung: Freiberuflicher Solution Architect

E-mail:

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