PHP, MySQL, and JavaScript Developer with Technical Support

Description

Job Summary: We are seeking a Senior Full Stack Developer to join our IT team, combining software development with system support in an M&A environment. Key Highlights: 1. Hybrid role combining software development and system support 2. Primary focus on PHP, MySQL, and JavaScript development 3. Maintenance and evolution of internal applications **Senior Full Stack Developer with IT Support** At **ONEtoONE Corporate Finance**, a leading firm advising on mergers and acquisitions (M\&A), we are looking for a hybrid profile bridging software development and system support to join our IT team in Madrid. **What will your main responsibilities be?** **Software Development and Maintenance (Primary Focus \~70%):** * Development of new features, updates, and bug fixes on our core technology stack: **PHP, MySQL, and JavaScript (Full Stack)**. * Maintenance and evolution of our internal applications, ensuring their performance and stability. **Infrastructure and User Support (\~30%):** * Administration of **Debian** servers, maintenance of services such as **Apache, Nginx, and MySQL**. * Comprehensive maintenance of the office’s technological infrastructure. * Technical support to end users for hardware installation and configuration, as well as incident resolution. * Management of basic security measures: access control and VPN maintenance. **What profile are we looking for?** **Mandatory:** * Proven experience of **at least 2\-3 years in a similar role combining development and support.** * Proficiency in the technology stack: PHP, MySQL (or MariaDB), and JavaScript (Full Stack). * Experience developing with **Vibe Coding**. Experience with **Claude Code** is particularly valued. * Basic knowledge of **Linux (preferably Debian)** system administration. **Highly Desirable:** * Experience with **Node.js**, version control using **Gi**, and familiarity with **Docker**. * Higher Vocational Training Degree (DAW, DAM, ASIR) or Bachelor’s Degree in Computer Engineering. Working hours: Monday to Thursday, 9:00 AM to 6:00 PM; Friday, 8:00 AM to 3:00 PM. Intensive schedule in July and August: 8:00 AM to 3:00 PM. Employment type: Full-time, Permanent contract Salary: €28,000.00\-€36,000.00 per year Benefits: * Offered language courses * Company events * Training program * Optional remote work Work location: On-site employment