Hybrid Java Systems Developer – Mid-level

at Minsait

• Job title: Java Systems Developer – Mid-level
• Job type: Full Time
• Experience level: Mid level, Senior
• Salary: Not specified
• Degree requirement: No Education Requirement
• Tech skills: Angular, Java, Oracle, Postgres, RxJS, Spring, Spring Boot, SpringBoot, SQL
• Location requirements: Hybrid, Joao Pessoa, Brazil

About the role

• Full Stack Developer at Minsait working on backend and frontend functionalities for various sectors. Involves developing APIs and improving database performance.

Responsibilities

• Develop and evolve end-to-end features (backend + frontend), delivering value with quality.
• Implement and maintain REST APIs (Spring), including validations, security, error handling and integrations.
• Implement and consume components/screens in Angular, with a focus on user experience and reusability.
• Work with Oracle and PostgreSQL, writing queries and supporting performance improvements when needed.
• Create and maintain database migrations with Liquibase, following standards and ensuring traceability.
• Requirements (essential):

Requirements

• Solid foundation in SQL and experience with Oracle and/or PostgreSQL.
• Proven full-stack experience with Java + Spring (Spring Boot, MVC/Web, Data/JPA, validation, security or equivalent concepts).
• Strong practical experience with Angular (componentization, forms, routing, API consumption, practical use of RxJS).
• Experience with database versioning (preferably Liquibase).
• Experience with Git (branching workflows, merge/pull requests, conflict resolution).
• Good practices: Clean Code, SOLID, consistent logging, exception handling, API design standards.
• Differentials (welcome):
• • Experience with Keycloak and SSO integrations.
• • Experience with microservices, service integration and resilience principles.
• • Applied knowledge of Clean Architecture / Hexagonal Architecture, DDD and CQRS.
• Availability to work in a hybrid model in João Pessoa.

Benefits

• Company-subsidized health plan for the employee.
• Option to include dependents on the health plan with payroll deduction.
• Dental assistance (optional).
• Option to include dependents on the dental assistance plan with payroll deduction.
• Meal allowance or food allowance.
• Optional transportation allowance.
• Impact & Care — Personal Support Program offering confidential emotional and advisory support in psychological, legal, financial, social and pet-related matters at no cost for the employee and legal dependents.
• Gympass - Wellhub (access to over 700 gyms across Brazil with plans starting at R$29.90 deducted from payroll).
• Option to include dependents on Gympass - Wellhub (up to 3 dependents — paid by credit card).
• Access to Udemy via our intranet.
• Partnerships with major consumer brands.
• Agreement with SESC for employee and dependents.
• Discounts with educational institutions (undergraduate and postgraduate) and language/certification schools.
• Group life insurance.