Klajdo Fyraj-Software Architect/Developer
Check rate
Experience
Independent Product Developer / Software Architect
rastr.eu
- Architected and deployed a live B2B geocoding and demographic-data platform for Germany, combining address lookup with census-based population statistics through a web application and REST API.
Professional Development & Career Repositioning
Train GmbH (Transfer Company)
- Expanded knowledge of AI Harnesses through development of rastr.eu, with emphasis on designing reliable, secure, and maintainable systems with AI.
- Engaged in career repositioning activities, including networking, skill enhancement, and exploring new opportunities aligned with professional growth and aspirations.
Chief Architect / Development Master
Siemens AG
- Steer technical strategy for industrial RTLS, integrating hardware, software, and IoT across 4 product lines while leading 50+ engineers across 5 global teams.
- Defined a global portfolio decommissioning framework, utilizing customer impact analytics to phase out legacy products without operational disruption.
- Orchestrated the EU Radio Equipment Directive compliance roadmap, ensuring continued market access for wireless hardware across the EU.
- Engineered a GMP-compliant data auditing architecture, directly enabling market entry into the pharmaceutical sector.
- Evaluated potential partners for Location Intelligence integration, looking at different technology providers to improve our capabilities and reduce dependency on single vendors.
Business Architect
Siemens AG
- Drove the technical direction for a complex RTLS system spanning 4 products, working with customers to understand their requirements, and conducting gap analyses that shaped our technical vision.
- Designed a safety-focused system architecture compliant with IEC 62443-4-2 industrial cybersecurity standards, for complying with EU Cyber Resilience Act to ensure operational continuity beyond 12/2027.
- Conceptualized and standardized comprehensive testing strategy across 4-tier test pyramid (unit, integration, E2E, performance), increasing code coverage from 52% to 85% and reducing production defects by 30%.
- Introduced a framework of quality criteria centered on non-functional requirements giving the team concrete metrics to prioritize improvements based on measurable data rather than gut feeling.
- Organized an Architecture Review Board and streamlined governance framework, reducing architecture decision cycles by 40% (10 → 6 days) and accelerated time-to-market.
Solutions Expert
Siemens AG
- Architected the integration layer using Hybrid-/Cloud approach to connect Location Intelligence into enterprise MES and ERP systems, delivering real-time asset tracking to automate manufacturing processes.
- Directed a cross-functional team on a €1.2M customer project, aligning technical solution design with business requirements through close coordination between sales, engineering, and stakeholders.
- Resolved a critical intra-logistics project that had fallen off track by stepping into project management and technical leadership, and successfully eliminating multi-million-euro contractual penalties.
- Drove pre-sales activities including requirements discovery, stakeholder interviews, and solution design workshops, creating tailored architectures that addressed specific customer challenges.
- Built and executed training programs for solution engineers across global regions, transferring knowledge and capabilities to develop solutions independently and support customers in their region.
Solution Engineer
Siemens AG
- Developed and customized customer-specific software solutions with Location Intelligence to optimize production and intra-logistics workflows, resulting in time savings of approximately 1 hour per day.
- Designed and implemented cloud architecture transition, including containerized commissioning with Docker and Single Sign-On integration using OpenID Connect, enabling scalable deployment and enhanced security
- Built enterprise TIA Selection Tool as a full-stack developer using C#, .NET, and Domain-Driven Design, implementing Test-Driven Development practices that achieved 90% test coverage.
- Engineered core domain logic for automated selection and configuration of drive technologies, enabling sales engineers to generate accurate specifications faster.
Part-time Independent/Freelancer, Software Engineer Automation
Hexagonal Engineering
- Delivered PLC programming solutions for production automation using Beckhoff TwinCAT and B&R Automation Studio, completing 2 client projects for a welding system and material handling.
- Updated and commissioned legacy control systems, replacing obsolete hardware/software while maintaining production uptime of 98%+ during transitions and training personnel.
Software Engineer SCADA Systems
Bertrandt Services GmbH
- Programmed WinCC OA SCADA systems for real-time production monitoring of manufacturing facilities, enabling operators to track 50+ process variables and reduce downtime response time by 35
Project Engineer Automation
Technologie Campus Cham
- Led end-to-end delivery of 6+ automation and research projects (total value €2.5M+) from conception through execution, managing cross-functional teams, supplier selection, and stakeholder coordination across academic and industry partners.
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Manufacturing, Information Technology, Transportation, Education, and Pharmaceutical.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Operations, Project Management, Product Development, Logistics, and Sales.
Summary
Duesseldorf, August 10, 2026
Skills
- Architecture & Design Patterns: Modular Monolith, Cqrs, Hexagonal, Clean Architecture, Service-Oriented, Vertical-Slice, Event-Driven, Rest Apis, Soap, Mqtt, Streaming
- Programming Languages & Frameworks: C# .Net / Dotnet (Asp .Net), Java (Spring Boot), Typescript (React), Langgraph Multi-Agent
- Cloud & Devops Tools: Azure Devops, Docker Engine, Kubernetes, Ms Build, Maven
- Enterprise Systems: Mes, Erp, Sap Integration
- Industrial/Embedded Systems: Beckhoff, Wago, B&R
Languages
Education
Deggendorf Institute of Technology
M.Sc. · Applied Research in Engineering Sciences · Deggendorf, Germany
University of Applied Sciences Crete
B.Sc. · Mechanical Engineering · Crete, Greece
Certifications & licenses
Certified System Architect
Siemens AG
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Klajdo is based in Düsseldorf, Germany and can operate in on-site, hybrid, and remote work models.
Klajdo speaks the following languages: Greek (Native), Albanian (Native), German (Advanced), English (Advanced).
Klajdo has at least 10 years of experience. During this time, Klajdo has worked in at least 9 different roles and for 6 different companies. The average length of individual experience is 1 year and 1 month. Note that Klajdo may not have shared all experience and actually has more experience.
Based on recent experience, Klajdo would be well-suited for roles such as: Independent Product Developer / Software Architect, Professional Development & Career Repositioning, Chief Architect / Development Master.
Klajdo's most recent position is Independent Product Developer / Software Architect at rastr.eu.
In recent years, Klajdo has worked for rastr.eu, Train GmbH (Transfer Company), and Siemens AG.
Klajdo is most experienced in industries like Manufacturing, Information Technology, and Transportation. Klajdo also has some experience in Education and Pharmaceutical.
Klajdo is most experienced in business areas like Information Technology, Operations, and Project Management. Klajdo also has some experience in Product Development, Logistics, and Sales.
Klajdo has recently worked in industries like Manufacturing, Information Technology, and Transportation.
Klajdo has recently worked in business areas like Information Technology, Product Development, and Logistics.
Klajdo holds a Master in Applied Research in Engineering Sciences from Deggendorf Institute of Technology and a Bachelor in Mechanical Engineering from University of Applied Sciences Crete.
Klajdo has 1 certificate: Certified System Architect.
Klajdo is immediately available full-time for suitable projects.
Daily rate distribution
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Average rates for similar positions
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The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 28 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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