Backend Developer (Mid-level)

Description

Job Summary: We are looking for a Mid-level Developer to implement new features and fix bugs, participate in the full software development lifecycle, and actively assist in refining technical requirements. Key Highlights: 1. Opportunity for growth in a challenging environment 2. Work environment that supports professional development and inclusion 3. We support diversity and have no tolerance for discrimination **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 development lifecycle* ; Actively assist in refining technical requirements* ; Participate in ceremonies within an Agile development methodology* ; Perform development tests and support the QA team in validating deliverables* ; Support Operations, Projects, and Products teams with technical needs* ; Support customers with questions related to integration with our products.* ; **We believe it is important that you have prior experience and possess 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 source code versioning processes and CI/CD practices (Git)* ; Understanding of the software development/engineering process, from conception to delivery* ; Familiarity with major Design Patterns* ; Knowledge of software 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 person’s contribution is directly proportional to **their willingness to grow**! CLT employment contract* ; Flexible working hours* ; Opportunity for growth through continuous development—both technical and personal* ; Leadership development programs for emerging leaders* ; 10% of monthly working hours can be dedicated to learning something new* ; Birthday day off* ; Home office stipend* ; 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 people feel included, free, authentic, and comfortable demonstrating their skills! **We support diversity and have no tolerance for any form of discrimination!** \#HSTcardtechnology \#orgulhodepertencer \#vempraHST ### **About Us** We tackle the most complex challenges, and since our founding, our mission has been to make electronic transactions more secure. Our solutions operate in over 20 countries, and among our clients are the 8 largest banks in Brazil and the top 20 banks in Latin America! Behind all our achievements is our Team—comprising over 200 professionals involved in developing our solutions. These are curious, questioning, creative, proactive, collaborative, and open-minded individuals. We foster a work environment that promotes both personal and professional growth, where everyone feels included, authentic, and comfortable exploring their abilities! We believe diversity drives innovation in our solutions. That’s why HST has the Diversifica Collective—a forum for discussing diversity-related topics and strategies aimed at making our organization more plural and inclusive! We are pioneers in the digital transformation of payment methods—we are HST!