Adrián Sánchez Castrejón
Navalcarnero
Summary
Ambitious Java Developer versed in following established procedures and working under little or no supervision. Offering technical expertise in programming analysis, application analysis and design. Excellent team player with in-depth knowledge of development tools and languages.
Overview
4
4
years of professional experience
Work History
Java Developer
Altia
10.2023 - Current
- Ensured seamless integration of Java-based applications with databases, APIs, and other systems.
- Reduced software bugs by conducting thorough unit testing and collaborating with QA teams.
- Reviewed code and debugged errors to improve performance.
- Enhanced application performance by optimizing Java code and implementing efficient algorithms.
- Troubleshot complex issues within existing software applications, identifying root causes and implementing effective solutions.
- Contributed to the successful completion of projects by meeting tight deadlines and delivering high-quality code.
- Drove continuous improvement by regularly reviewing and updating existing Java applications to meet evolving business requirements.
- Conducted data modeling, performance and integration testing.
FullStack Developer
Minsait Payment Systems SL
09.2022 - 10.2023
- Reviewed code, debugged problems, and corrected issues.
- Participated in requirements gathering to solidify prerequisites and determine best technical solution to meet business needs.
- Discussed project progress with customers, collected feedback on different stages and directly addressed concerns.
- Developed functional databases, applications and servers to support websites on back-end.
- Worked with back-end developers to design APIs.
- Managed development milestones from initial steps through final delivery.
- Built databases and table structures for web applications.
- Troubleshooting.
Computer System Operations Technician
Syvalue
07.2020 - 05.2022
- Installed, configured, tested and maintained operating systems, application software, and system management tools.
- Maintained office PCs, networks and mobile devices.
- Explained technical information in clear terms to non-technical individuals to promote better understanding.
- Responded to support requests from end-users and patiently walked individuals through basic troubleshooting tasks.
Education
Certificate of Higher Education Web Developer
LinkiaFP (Online)
Madrid, Spain06.2022
Certificate of Higher Education Computer Systems T
I.E.S. La Arboleda
Alcorcón, Spain06.2020
Skills
- Application design
- Troubleshooting
- Design principles
- Software Updates
- Code reviews
- Agile Methodology
- RESTful APIs
- Object-Oriented Programming
- JavaScript programming
- Software Debugging
- API Design and Development
- Database Administration
Languages
Spanish
Bilingual or Proficient (C2)
English
Advanced (C1)
Timeline
Java Developer
Altia
10.2023 - Current
FullStack Developer
Minsait Payment Systems SL
09.2022 - 10.2023
Computer System Operations Technician
Syvalue
07.2020 - 05.2022
Certificate of Higher Education Web Developer
LinkiaFP (Online)
Certificate of Higher Education Computer Systems T
I.E.S. La Arboleda
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