Backend Developer (Mid-Level)

Description

Job Summary: We are seeking a Mid-Level Developer to implement new features and fix bugs, participating in the full software development lifecycle within an agile methodology. Key Highlights: 1. Opportunity for growth in a challenging environment 2. Work environment that supports personal and professional development 3. Support for diversity and inclusion **Published at October 2025** Campinas/SP Work model Remote Contract model CLT Person with disability **We are looking for a Mid-Level Developer to join our Development Team to:** Develop new features and fix bugs, following software development best practices* ; Participate in the full software project development lifecycle* ; Actively support technical requirement refinement* ; Participate in agile development ceremonies* ; Perform development testing and assist the QA team in validating deliverables* ; Support Operations, Projects, and Product teams with technical needs* ; Assist customers with questions related to integration with our products.* ; **We believe it is important that you have prior experience and the following knowledge:** Experience with Java 17\+, Spring Boot, REST APIs, microservices architecture, CI/CD* ; Experience with software development planning and estimation* ; Knowledge of Docker and orchestrators* ; Knowledge of event-driven architecture and messaging services* ; Knowledge of code versioning processes and CI/CD practices (Git)* ; Understanding of software development/engineering processes, from conception to delivery* ; Familiarity with major design patterns* ; Knowledge of development best practices: SOLID, K.I.S.S., Clean Code* ; Knowledge of databases (SQL, NoSQL)* ; Knowledge of unit testing* ; Proficiency in ensuring delivery quality and overall functionality of developed solutions* . **It would be a strong advantage if you have:** Knowledge of API performance analysis and optimization* ; Intermediate English proficiency* ; Knowledge of payment-related products or concepts* . **What do we offer?** HST is a GPTW-certified company! We offer the **opportunity for growth in a challenging environment**, where each individual’s contribution is directly proportional to **their willingness to grow**! CLT employment contracts* ; Flexible working hours* ; Opportunities for growth through continuous development—both technical and personal* ; Leadership development programs for emerging leaders* ; 10% of monthly working hours may be dedicated to learning something new* ; Birthday Day-Off* ; Home Office Allowance* ; Extended Maternity and Paternity Leave* ; Profit and Results Sharing Program* ; WellHub (formerly Gympass)* ; Health Insurance* ; Dental Insurance* ; Meal/Voucher Allowance* ; Transportation Allowance or Parking* ; Childcare Assistance* ; Life Insurance* . We value a positive work environment that fosters personal growth and makes everyone feel welcomed, free, authentic, and comfortable showcasing their skills! **We champion diversity and do not tolerate any form of discrimination!** \#HSTcardtechnology \#orgulhodepertencer \#vempraHST ### **About Us** We tackle the most complex challenges and, since our founding, have been committed to making electronic transactions more secure. Our solutions operate in over 20 countries, and among our clients are the 8 largest banks in Brazil and the 20 largest in Latin America! Behind all our achievements stands our Team—comprising over 200 professionals involved in developing our solutions. These are curious, creative, proactive, collaborative, and open-minded individuals eager to embrace new experiences. We foster a work environment that promotes both personal and professional growth, where everyone feels welcomed, authentic, and comfortable exploring their abilities! We believe diversity drives innovation in our solutions. Therefore, at HST, we have the Diversifica Collective—a forum for discussing diversity topics and strategies aimed at building a more plural and inclusive organization! We lead digital transformation in the payments industry—we are HST!