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I am a tri-lingual backend developer with over 25 years of experience delivering high-availability web platforms and scalable SaaS systems using PHP, Laravel, MySQL/PostgreSQL, Redis, and Docker. I have deep expertise in modern backend architecture, microservices, and performance optimization, and a track record of delivering high-traffic platforms with complex integrations. I value clean, maintainable code and thrive in remote-first, collaborative teams. I'm passionate about writing clean, maintainable code and contributing to remote-first, cross-functional teams. I enjoy building sandboxed testing environments, designing robust APIs, and refactoring legacy systems to modern, scalable architectures.…I am a tri-lingual backend developer with over 25 years of experience delivering high-availability web platforms and scalable SaaS systems using PHP, Laravel, MySQL/PostgreSQL, Redis, and Docker. I have deep expertise in modern backend architecture, microservices, and performance optimization, and a track record of delivering high-traffic platforms with complex integrations. I value clean, maintainable code and thrive in remote-first, collaborative teams. I'm passionate about writing clean, maintainable code and contributing to remote-first, cross-functional teams. I enjoy building sandboxed testing environments, designing robust APIs, and refactoring legacy systems to modern, scalable architectures.

Julian Llantén

Back-End Developer, Web Developer, Full Stack Developer

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I am a tri-lingual backend developer with over 25 years of experience delivering high-availability web platforms and scalable SaaS systems using PHP, Laravel, MySQL/PostgreSQL, Redis, and Docker. I have deep expertise in modern backend architecture, microservices, and performance optimization, and a track record of delivering high-traffic platforms with complex integrations. I value clean, maintainable code and thrive in remote-first, collaborative teams. I'm passionate about writing clean, maintainable code and contributing to remote-first, cross-functional teams. I enjoy building sandboxed testing environments, designing robust APIs, and refactoring legacy systems to modern, scalable architectures.…I am a tri-lingual backend developer with over 25 years of experience delivering high-availability web platforms and scalable SaaS systems using PHP, Laravel, MySQL/PostgreSQL, Redis, and Docker. I have deep expertise in modern backend architecture, microservices, and performance optimization, and a track record of delivering high-traffic platforms with complex integrations. I value clean, maintainable code and thrive in remote-first, collaborative teams. I'm passionate about writing clean, maintainable code and contributing to remote-first, cross-functional teams. I enjoy building sandboxed testing environments, designing robust APIs, and refactoring legacy systems to modern, scalable architectures.

Available to hire

I am a tri-lingual backend developer with over 25 years of experience delivering high-availability web platforms and scalable SaaS systems using PHP, Laravel, MySQL/PostgreSQL, Redis, and Docker. I have deep expertise in modern backend architecture, microservices, and performance optimization, and a track record of delivering high-traffic platforms with complex integrations. I value clean, maintainable code and thrive in remote-first, collaborative teams.
I’m passionate about writing clean, maintainable code and contributing to remote-first, cross-functional teams. I enjoy building sandboxed testing environments, designing robust APIs, and refactoring legacy systems to modern, scalable architectures.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Advanced

French

Advanced

Spanish; Castilian

Advanced

Work Experience

Senior Backend Developer at Aylo - Nutaku

May 1, 2020 - Present

Maintained and enhanced high-traffic PHP/Laravel systems handling millions of users and 1900+ games. Developed a PCI-compliant payment gateway with 3DS2 tokenization, rolled out to 20M+ customers. Built sandboxed testing environments for external game developers. Created a microservice-based global notification system to broadcast user events across platforms (web, mobile, desktop). Led refactoring of legacy systems, whitelabel architecture, and OAuth expansion. Tech stack: PHP 7–8, Laravel 7–12, MySQL 5.7/8, Redis, Docker, Git, Ubuntu 22.04, Websockets, PHPUnit, Zend 1.12

Senior Backend Developer at BCL Group

January 1, 2018 - February 1, 2021

Built secure RESTful APIs for HIPAA-compliant remote medical services platform. Designed Android and iOS app architecture and backend endpoints. Supported backend design and development across several client-facing services.

Senior Analyst / Web Developer at DataCandy Inc / Paystone

January 1, 2017 - March 1, 2020

Migrated a 1.3M+ line legacy PHP codebase to PHP 7+, introducing SOLID principles and object-oriented design. Developed customer-facing and internal tools to enhance engagement and reduce bounce rate. Refactored billing portals to meet PCI compliance requirements. Worked across 15+ interconnected projects with cross-functional teams.

CTO / Lead Researcher at Quantica Soluciones

January 1, 2017 - September 1, 2019

Responsible for IT decisions and R&D opportunities for web-based applications. Analyzed and developed code for municipal tax preparation software (web-based) and end-user tax services (web-based).

Senior Web Analyst / Developer at Groupe Planon (Site Alpha)

September 1, 2012 - December 1, 2016

Migrated standalone enterprise application to a multi-tenant SaaS platform. Rebuilt UI with AngularJS, Bootstrap, and responsive HTML5. Refactored legacy monolith into modular Web 2.0 architecture.

Web Developer (Earlier Experience) at Gamma Entertainment (Netfam e & Media Traffic), Avity LLC, Metrored Colombia (ISP), and CENDA

January 1, 2000 - December 31, 2012

Built scalable backend systems for high-traffic platforms including AdXpansion. Led frontend integration of Google Analytics and A/B testing across 50+ sites. Designed CRM and billing systems for telecom and educational institutions using PHP, PostgreSQL, and Linux. Worked on video streaming platforms, CDN integration, and deployment automation (Bash, SVN, PHP).