Job Summary: We are seeking a professional to work on the development and maintenance of systems using technologies such as Java, Spring, and Oracle database, with an emphasis on sound programming practices. Key Highlights: 1. Experience with telecommunications systems (NET SALES/NET SMS/BILLING). 2. Java programming, Spring, REST and SOAP, with PL/SQL and Oracle. 3. Consistent involvement in testing (TDD/BDD) and mastery of SOLID principles. **We are looking for someone who dares to co-lead with us.** **Responsibilities and Duties:** **Requirements and Qualifications:** **Required** experience with **telecommunications** systems such as **NET SALES/NET SMS/BILLING** Java programming (both older and current versions) Experience with Spring framework Experience with REST and SOAP Experience with PL/SQL Experience with Oracle database Consistent involvement in testing and familiarity with practices such as TDD and BDD Mastery of SOLID principles and sound programming practices **Additional Information:** * For your health, we offer **medical and dental assistance** without copayment for exams and consultations. * Want more well-being? We offer **Gympass** and **Zenklub** (with two free sessions per month) to support your physical and mental health. * When hunger strikes, use our meal benefit **Caju** to purchase groceries at any supermarket or dine at any restaurant. * Love traveling? Here, we have **Férias & Co**, a benefit that helps you realize your dream vacation. * Have children? Count on our **childcare allowance**. * Growing family? We offer **MomCare**, a flexible monetary incentive post-maternity leave for new Datunian mothers. * To personalize your workspace, rely on our **home office allowance**. * Want to invest in your professional development? We partner with several prestigious educational institutions to offer you discounts of up to 70% on **undergraduate**, **postgraduate**, **MBA**, **language**, and many other courses! **To learn about all our benefits, visit the** **homepage of our careers page.**