I'm Alexandru Diaconescu, a Senior Software Engineer focused on delivering responsive web applications and full-stack solutions. With 13 years of experience, I craft high-quality web and software solutions, translating complex architectures into user-friendly interfaces and scalable systems. I have a strong foundation in HTML, CSS, JavaScript, and modern web development practices, and I enjoy turning complex system designs into intuitive, accessible experiences. I excel at building responsive web interfaces, ensuring cross-browser compatibility, and delivering production-ready applications on time. I also have hands-on experience with multilingual data and structured content integration, and I collaborate effectively across agile teams to meet deadlines while maintaining visual and functional consistency.…

Alexandru Diaconescu

I'm Alexandru Diaconescu, a Senior Software Engineer focused on delivering responsive web applications and full-stack solutions. With 13 years of experience, I craft high-quality web and software solutions, translating complex architectures into user-friendly interfaces and scalable systems. I have a strong foundation in HTML, CSS, JavaScript, and modern web development practices, and I enjoy turning complex system designs into intuitive, accessible experiences. I excel at building responsive web interfaces, ensuring cross-browser compatibility, and delivering production-ready applications on time. I also have hands-on experience with multilingual data and structured content integration, and I collaborate effectively across agile teams to meet deadlines while maintaining visual and functional consistency.…

Available to hire

I’m Alexandru Diaconescu, a Senior Software Engineer focused on delivering responsive web applications and full-stack solutions. With 13 years of experience, I craft high-quality web and software solutions, translating complex architectures into user-friendly interfaces and scalable systems. I have a strong foundation in HTML, CSS, JavaScript, and modern web development practices, and I enjoy turning complex system designs into intuitive, accessible experiences.
I excel at building responsive web interfaces, ensuring cross-browser compatibility, and delivering production-ready applications on time. I also have hands-on experience with multilingual data and structured content integration, and I collaborate effectively across agile teams to meet deadlines while maintaining visual and functional consistency.

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Skills

Experience Level

CSS
Expert
JavaScript
Expert
Java
Expert
Spring
Expert
API
Expert
SQL
Expert
PostgreSQL
Expert
Docker
Expert
React Native
Expert
AWS
Expert
UI
Expert
Google Cloud
Intermediate
GitHub CoPilot
Intermediate
Azure
Intermediate
Jira
Intermediate
Kubernetes
Intermediate
AngularJS
Intermediate
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Language

Romanian, Moldavian, Moldovan
Fluent
English
Advanced
Chinese
Beginner

Work Experience

Senior Software Engineer at Air France
December 1, 2025 - Present
Developed scalable backend services using Java Spring Boot and REST APIs supporting high-availability systems. Contributed to production-grade systems with focus on performance, reliability, and maintainability. Participated in system integration involving structured data and user-facing service layers. Applied attention to detail to ensure data consistency and seamless service behavior across environments.
Senior Software Engineer at Akka Technologies / Amadeus
January 1, 2024 - January 1, 2025
Contributed to distributed systems and microservices architectures in cloud environments (Azure). Worked on systems requiring precise data processing and user-facing outputs, ensuring consistency and correctness. Participated in DevOps practices and deployment automation, improving delivery workflows and system reliability. Collaborated across teams to deliver features aligned with product requirements and user expectations.
Senior Software Engineer at Symphony
January 1, 2022 - January 1, 2023
Developed backend services in cloud environments (AWS, GCP) with focus on secure and reliable data handling. Implemented systems requiring structured content delivery and precise data control. Contributed to production systems with emphasis on stability and correctness.
Senior Software Engineer at Amadeus
January 1, 2013 - January 1, 2022
Worked on large-scale distributed systems supporting user-facing applications and data-driven platforms. Contributed to systems involving data presentation, structured content processing, and user interaction layers. Participated in full-stack environments involving APIs, frontend-integrated systems, and service-based architectures. Ensured system reliability and performance across large-scale production environments.
Software Engineer at Riscure
January 1, 2012 - January 1, 2013
Developed software tools in C++ with strong emphasis on precision, correctness, and technical rigor. Performed analysis of complex systems requiring attention to detail and structured data processing.

Education

MSc Embedded Systems at Delft University of Technology
January 11, 2030 - April 14, 2026
B.Eng Computer Science at Politehnica University of Bucharest
January 11, 2030 - April 14, 2026

Qualifications

Software Security (Coursera)
January 11, 2030 - April 14, 2026
Scrum Fundamentals Certified
January 11, 2030 - April 14, 2026

Industry Experience

Software & Internet, Professional Services, Travel & Hospitality, Transportation & Logistics
    paper Personal Projects

    • Developed a fully responsive website by replicating an existing production design, ensuring visual accuracy, intuitive navigation, and cross-browser compatibility. Integrated structured content and optimized layout for mobile and desktop environments.
    • Built a full-stack application combining a Java Spring Boot backend with a frontend interface to visualize and interact with structured data, demonstrating end-to-end feature ownership and API-driven UI integration.

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