Jesus Valera Reales
Senior Software Engineer passionate about clean code, architecture, and sharing knowledge through technology.
About Me
8+ years of experience building scalable, maintainable systems, with a strong focus on clean architecture, test-driven development, and long-term code quality
Leverages modern AI development tools to enhance productivity, accelerate problem-solving, and design more robust, adaptable systems
Passionate about mentorship and knowledge sharing, with experience guiding engineers and speaking at public conferences on technical topics
Active contributor to open-source projects, continuously sharing insights and building tools that support the broader developer community
Collaborative and product-minded engineer who values clear communication, ownership, and delivering reliable, high-quality solutions that create real impact
Skills
Programming Languages & Frameworks
Databases & Storage
Tools & Platforms
Experience
GotPhoto.com | fotograf.de
- Improved the legacy shop's package customization flow, optimizing usability and business logic, leading the development of a key feature that increased the order rate by 20% while reducing bugs and support overhead
- Redesigned and rebuilt a new shop from scratch using Symfony, implementing a RESTful API architecture, which significantly improved performance, scalability, and long-term maintainability
- Extracted components from the monolith into external services, improving maintainability and drastically reducing deployment time from 30 minutes to 40 seconds
- Made extensive daily use of AI development tools, applying them to experimentation, analysis, and solution design, and promoting best practices within the team to enhance productivity and technical outcomes
- Mentored new team joiners, guiding them through team ceremonies, knowledge-sharing practices, and technical workflows, enabling faster onboarding and more effective collaboration
ArtNight
- Refactored the PHP monolith into a modular architecture using Hexagonal Architecture, improving maintainability, scalability, and long-term evolvability of the codebase
- Actively reviewed and influenced architectural decisions, balancing business constraints with technical quality and sustainability
- Led by example in code reviews and refactoring initiatives, raising overall code quality and reducing technical debt
- Promoted best practices by organizing internal tech talks and coding katas, fostering clean code principles and a strong TDD culture across the team
Kollex
- Read and write files to an AWS S3 bucket, enabling efficient data exchange and integration with external systems
- Developed and enhanced multiple features, including performance and reliability improvements
Selectra
- Contributed to multiple projects through bug fixes, feature development, and enhancements
Smile And Learn
- Designed and implemented CSV import and export functionality, along with dynamic PDF generation
RAD4M
- Designed and developed an application from scratch, with persistent storage and third-party APIs
Education
CIFP Carlos III
IES Ginés Pérez Chirinos
Languages
Conferences
Speaker - Solving a Testing & Refactoring Kata: Live Coding in Pair/Mob Programming [link]
Projects
Security Scorecard
Automated security auditing tool for Laravel applications.
It scans publicly accessible deployments for common security issues such as leaked files, exposed dashboards, missing HTTP security headers, and configuration mistakes, then provides a graded report with clear, actionable remediation steps.
D'Krisna
Collaborated directly with the client through extensive conversations to understand their vision and business needs. Designed the complete visual identity and user experience from initial concept to final implementation.
Developed a modern, bilingual website featuring integrated booking system and responsive design for enhanced client engagement.
BIP39 Word Selector
Developed a privacy-focused web tool for cryptocurrency enthusiasts working with BIP39 mnemonic phrases. Features bidirectional conversion between words and binary patterns with client-side processing.
Built with vanilla JavaScript ensuring no data storage or tracking for maximum user security.
Phel Lang IntelliJ Plugin
Developed a comprehensive IntelliJ IDEA plugin written in Kotlin for Phel functional programming language. Implemented syntax highlighting, code navigation, auto-completion, and error detection features.
Successfully published in JetBrains Marketplace, serving the growing Phel developer community.
Phel Lang
Language Development: Contributed bug fixes, automated test suites, and design improvements to enhance language stability and reliability.
Website Design: Designed and developed the complete project website from scratch with responsive design, documentation, and custom search engine functionality.
Gacela Project
Co-designed and developed Gacela, a comprehensive PHP modular framework for splitting large applications. Implemented core components including dependency resolver, code generator, and event manager system.
Collaborated on design patterns and documentation, promoting clean architecture principles for scalable development.