Julián Tejada
Software Development Analyst at Instasent
Madrid, Community of Madrid, Spain
Summary
👤
Senior🎓
Top SchoolJulián Tejada is a seasoned backend-focused software development analyst with 12 years of experience building scalable web and mobile APIs, cloud-hosted platforms, and high-availability services from Madrid. He has led architecture, DevOps and product development for Azure PaaS-based communication and geolocation platforms, and previously acted as a SCRUM Master while helping his company attain ISO certifications. An active open-source contributor, Julián has improved well-known PHP and Node projects—including Slim, PHP-DI and thephpleague/oauth2-server—contributing security, caching and encoding fixes that improve robustness across character sets and middleware patterns. Comfortable across LAMP and cloud stacks, he blends hands-on token/grant mechanics and message-encoding expertise with practical operational skills. Colleagues would note his preference for making systems “his own” by driving maintainability and thoughtful refactors rather than quick patches.
11 years of coding experience
13 years of employment as a software developer
First Certificate in English (FCE) English, First Certificate in English (FCE) English at University of CambridgeCertificate of Proficiency English, Certificate of Proficiency English at Escuela Oficial de Idiomas de MadridBachelor of Science in Information Engineering Technology, Bachelor of Science in Information Engineering Technology at Ghent UniversityIng. Tec. Informática Sistemas Ingeniería Informática de Sistemas, Ing. Tec. Informática Sistemas Ingeniería Informática de Sistemas at Universidad Politécnica de Madrid
Spanish, English
Stackoverflow
146reputation
11kreached
3answers
2questions
Github Skills (29)
smpp10
caching10
javascript10
apidoc10
psr-1110
testing10
phpunit10
psr-710
php10
api10
sdk10
oauth2-server10
slim10
error-handling10
nodejs10
Programming languages (9)
Github contributions (5)
farhadi/node-smpp
Apr 2019 - Apr 2022
SMPP client and server implementation in node.js
Role in this project:
Back-end Developer
Back-end DeveloperContributions:7 releases, 2 reviews, 53 commits in 3 years
Contributions summary:Julián primarily focused on enhancing the `node-smpp` library by adding support for different GSM encoding tables, specifically Turkish, Spanish, and Portuguese. Their work included implementing character encoding and decoding functions and integrating these features into the message handling logic. Additionally, the user fixed existing test cases and addressed potential issues related to message payload encoding, ensuring the library's compatibility and correct behavior across various character sets. They also added functionality for auto enquire link.
smppsmpp-clientnode-jsnodejssmpp-server
slimphp/Slim
Sep 2015 - Nov 2019
Slim is a PHP micro framework that helps you quickly write simple yet powerful web applications and APIs.
Role in this project:Back-end Developer
Back-end DeveloperContributions:5 commits, 6 PRs, 46 comments in 4 years 2 months
Contributions summary:Julián primarily contributed to the Slim PHP framework by modifying error handling and content type determination in several handler classes. Their work included simplifying exception traversal, changing code to use array_intersect for content type determination, and refactoring code to handle requests directly for content type detection. The user also updated and removed container references in the project.
micro-frameworkguzzlephp-frameworkslim-frameworksimple-yet-powerful
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