Job Summary: We are seeking an experienced developer to audit, stabilize, and optimize transactional systems, as well as develop high-performance new modules, valuing innovation and commitment to excellence. Key Highlights: 1. Professional growth opportunities in a collaborative environment 2. Deep involvement in auditing and stabilizing robust systems 3. Development of high-performance new modules using modern technologies **We are a recognized technology-sector company dedicated to the sale and distribution of technology products. We value innovation and commitment to service excellence, providing a collaborative work environment and professional growth opportunities.** Key Responsibilities: \-Deeply engage in auditing and stabilizing a robust transactional system developed using established technologies (VB .NET, PHP, MySQL), in collaboration with the rest of the team. \-Optimize and refactor complex business logic currently residing in the database (advanced Stored Procedures). \-Ensure operational continuity while preparing for the system’s next functional stages. \-Develop high-performance new modules using modern, scalable, and stable technologies. \-Implement improvements and handle large volumes of data. Required Knowledge: \-Backend: Python and others. \-Frontend: React / Next.js / Similar. \-Data: MySQL 8\.0, PostgreSQL, MongoDB. \-Search & Cache: Redis, Elasticsearch, similar. \-Infrastructure: Docker, Linux. Requirements: \-Proven experience maintaining legacy systems (VB .NET/PHP) as well as developing modern software. \-Ability to read, understand, and refactor complex stored procedures spanning thousands of lines—not just writing queries, but comprehending the business logic embedded within the database. \-Backend Experience: Minimum 4\+ years of solid development experience. \-Data Engineering: Knowledge of MySQL and PostgreSQL databases. \-Completed bachelor’s degree. \-Residence near the area. **Work Location:** Guadalupe, on-site; Monday to Friday, 8 a.m. to 6 p.m.; only one Saturday per quarter is required for inventory purposes. **Salary:** $30,000 gross \+ $3,000 bonus. Statutory benefits plus additional ones including optional savings fund, life insurance, and discounts on our products. Employment Type: Full-time Salary: $29,000\.00 \- $30,000\.00 per month Benefits: * Savings fund * Life insurance * Free uniforms Work Location: On-site employment