Job Summary: We are looking for a Mid-Level Product Maintainer & Software Developer to perform evolutionary maintenance, functional enhancements, and optimization of existing web applications. Key Highlights: 1. Development of new features on existing systems 2. Maintenance and optimization of legacy applications 3. Job stability and development on proprietary products We are seeking a **Mid-Level Product Maintainer & Software Developer** to join a development team working on proprietary production systems. The role focuses on evolutionary maintenance, functional enhancements, and optimization of existing web applications. **Responsibilities** * Development of new features on existing systems. * Maintenance and optimization of legacy applications. * Implementation of performance and stability improvements. * Translation of UI/UX designs into functional code. * Technical documentation and collaboration with internal teams. **Requirements** * Technical degree or Bachelor’s degree in Software Development or related fields. * 2–4 years of experience in web development. * PHP (recent version). * MySQL. * JavaScript ES6+, HTML5, CSS3. * Experience working with legacy code. * Full-Stack profile. * Intermediate English (technical reading and writing). **We Offer** * Job stability. * Development on proprietary products. * On-site work arrangement with hybrid option. * Competitive salary commensurate with experience. Location: Naucalpan, State of Mexico (1ro de Mayo) **Apply here or send your CV to bromero@beyserinconsulting.com** Job Type: Full-time Salary: $26,000.00 – $31,000.00 per month Work Location: On-site employment