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I'm a developer who specializes in... from... Give an introduction about yourself, who are you, what are your most important skills and what differentiates you from other devs. This is the first thing clients will see. They are often interested in sector experience and knowledge, so please mention it. --- Employment and project experience Senior Developer Salesforce Inc. _January 2017 - March 2017_ Full-stack Developer Microsoft Inc. _January 2019 - March 2019_…I'm a developer who specializes in... from... Give an introduction about yourself, who are you, what are your most important skills and what differentiates you from other devs. This is the first thing clients will see. They are often interested in sector experience and knowledge, so please mention it. --- Employment and project experience Senior Developer Salesforce Inc. _January 2017 - March 2017_ Full-stack Developer Microsoft Inc. _January 2019 - March 2019_

Franklyn Alejandro Sosa Pérez

Web Developer, Programmer, Developer, +3

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I'm a developer who specializes in... from... Give an introduction about yourself, who are you, what are your most important skills and what differentiates you from other devs. This is the first thing clients will see. They are often interested in sector experience and knowledge, so please mention it. --- Employment and project experience Senior Developer Salesforce Inc. _January 2017 - March 2017_ Full-stack Developer Microsoft Inc. _January 2019 - March 2019_…I'm a developer who specializes in... from... Give an introduction about yourself, who are you, what are your most important skills and what differentiates you from other devs. This is the first thing clients will see. They are often interested in sector experience and knowledge, so please mention it. --- Employment and project experience Senior Developer Salesforce Inc. _January 2017 - March 2017_ Full-stack Developer Microsoft Inc. _January 2019 - March 2019_

Available to hire

Winterthur, Switzerland

I’m a developer who specializes in… from…

Give an introduction about yourself, who are you, what are your most important skills and what differentiates you from other devs. This is the first thing clients will see. They are often interested in sector experience and knowledge, so please mention it.

Employment and project experience

Senior Developer Salesforce Inc.
January 2017 - March 2017

Full-stack Developer Microsoft Inc.
January 2019 - March 2019

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

Spanish; Castilian

Fluent

English

Advanced

Work Experience

Senior PHP Developer at Wallee AG

March 1, 2025 - September 3, 2025

Developed and maintained high-traffic payment systems, optimizing transaction processing times by 30% using PHP 8.2. Created and maintained plugins for online stores such as WordPress, Shopware 6, Magento 2, and others. Developed Progressive Web App plugins using Vue.js and React to enhance user engagement and functionality. Worked with Java and Gradle for plugin generation and task automation. Collaborated with cross-functional teams to deliver high-quality software solutions.

Senior PHP Developer at MyTheresa GmbH

May 1, 2022 - September 3, 2025

Maintained software in the purchasing process for luxury items applying PHP 8.1, Go, SOLID principles, and Symfony 5. Improved user experience in the payment process.

Senior Team Lead PHP Developer at Meeting Doctors S.L.

March 1, 2022 - September 3, 2025

Developed an internal chat application using DDD/CQRS architecture with PHP 8.0, Symfony 5, AWS services, and NestJS. Set the stage for the scalable business core development in record time.

Senior PHP Developer at Mascoteros S.L.

March 1, 2021 - September 3, 2025

Developed various e-commerce features using Symfony, Design Patterns, TDD, and AWS services. Enhanced user experience by displaying personalized item recommendations.

Senior Lead Software Engineer at Ofertaski

August 1, 2019 - Present

Backend development of applications using CQRS, Event Sourcing, Clean Code, and Design Patterns with PHP 8.2, Symfony 5.1, RabbitMQ, Elasticsearch, Redis, MySQL and AWS. Frontend development of Progressive Web Apps with ReactJS, WebSocket, SASS, and Bootstrap 4. Managed CI/CD with Ansible.

Senior PHP Developer at Exotica S.L.

August 1, 2019 - September 3, 2025

Developed a travel application using Design Patterns, AWS, Ansible, MySQL, PHP 7.4, Symfony components, and frontend technologies including ReactJS and Flexbox.

Senior PHP Developer at E-TIC Systeme S.L.

May 1, 2019 - September 3, 2025

Developed applications with Hexagonal Architecture and DDD, consuming RESTful APIs. Used Symfony 4, NodeJs, NestJs, Design Patterns, Clean Code, and MySQL.

Senior Team Lead PHP Developer at Media ADGo S.L.

February 1, 2018 - September 3, 2025

Implemented hexagonal DDD architecture for internal applications using SOLID principles, Design Patterns, Scrum, Symfony 3, PHP 7.4, and ReactJS.

Softwareentwickler PHP at SII Concatel

December 1, 2016 - September 3, 2025

Developed applications with the Yii framework with evolutionary deployment using Jenkins and Git.