Software Engineer specialized in composable architectures, CMS ecosystems, and AI-augmented development.
Engineer with hands-on experience building and maintaining production systems across multiple CMS and cloud ecosystems, including Sitecore (XM Cloud / Sitecore AI), Optimizely (PaaS & SaaS), and Contentstack.
My work focuses on bridging content platforms, frontend architecture, and backend systems, ensuring that applications are scalable, maintainable, and aligned with real business use cases.
I combine strong fundamentals in software engineering with practical use of AI tools to accelerate development, automate workflows, and improve delivery quality without compromising system design.
Composable & Headless Architectures
- Sitecore XM Cloud / Sitecore AI (certified)
- Optimizely (PaaS and SaaS) (certified)
- Contentstack
- Component-driven and content-driven application design
Frontend Engineering
- Next.js, React, TypeScript
- Performance-focused UI architecture
- Integration of CMS data into scalable frontend systems
Backend & APIs
- Node.js, Express
- REST API design
- Data modeling and access control patterns
Cloud & Infrastructure
- AWS (application-level usage)
- Docker
- CI/CD pipelines
- Understanding of distributed system constraints
Mobile Development
- React Native
- Flutter
Automation & Data
- Python for scripting, automation, and data workflows
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Focus on system design, not just implementation
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Build with scalability and maintainability as first principles
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Apply security considerations early (data handling, access control, encryption patterns)
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Use AI tools as force multipliers, not shortcuts:
- Code generation with validation and refactoring
- Architecture iteration and rapid prototyping
- Automation of repetitive engineering tasks
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Prioritize developer experience in the systems I build
Locker1 is a full-stack application designed to handle sensitive credentials with a security-first architecture.
The system allows users to store, organize, and share passwords securely, supporting both individual and team-based access models.
Key characteristics:
- User-level encryption model with controlled decryption
- Group-based password sharing with defined access boundaries
- Designed to prevent insecure patterns in credential storage
- Built as a practical implementation of secure system design principles
Tech stack: Node.js, Express, MongoDB, Next.js
Note: The implementation was completed as part of an academic project and is not publicly hosted in this profile.
- Development of components and integrations in Sitecore XM Cloud environments
- Work within Optimizely ecosystems (PaaS/SaaS)
- Implementation of headless CMS architectures using Contentstack
- Integration of backend services with frontend applications in real-world scenarios
Currently focused on evolving toward roles that require:
- Ownership of system architecture
- Strong frontend + backend integration
- Security-aware design
- Effective use of AI in engineering workflows
LinkedIn: https://www.linkedin.com/in/aliagasebas/ Email: sebasaliaga2515@gmail.com


