Senior Java Backend Developer

Verity Group

Java Backend Developer for Verity, a digital solutions accelerator focused on financial systems. Develop APIs and backend services for various transactional modules.

Posted 6/4/2026full-timeRemote • 🇧🇷 BrazilSeniorWebsite

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Hard Skills

JavaSpring BootREST APIsJPAHibernaterelational databasesunit testingerror handlingAPI versioningasynchronous processing

Soft Skills

ability to work in environments with external integrationsability to handle technical dependenciesability to manage incremental product evolution

Tools & Technologies

payment gatewaysfinancial webhooksnotification servicescachingauditingversion control

Industry Keywords

billingsubscriptionscheckoutauthenticationauthorizationbusiness rulestransactional systemseligibilitypermission controldelinquency handling

Tech Stack

Tools & technologies

HibernateJavaSpringSpring BootSpringBoot

About the role

Key responsibilities & impact

Responsible for developing the platform backend, focusing on billing, subscriptions, checkout, dependents, profiles, authentication, integrations and transactional rules.
Develop Java backend APIs and services for the plans, offers, checkout, subscription, billing, dependents and authenticated-user areas.
Implement integrations with payment gateways, financial webhooks, recurring billing, retry logic, delinquency handling and subscription cancellations.
Build business rules for subscription status, benefit blocking, payment history, eligibility and hierarchical scope.
Implement authentication, first-time access, profile-based authorization and permission control by partner, company and beneficiary.
Develop integration components with NAV, notification services, caching, auditing and other required systems.
Apply best practices for unit testing, error handling, logging, API versioning and technical documentation.

Requirements

What you’ll need

Advanced experience with Java, Spring Boot, REST APIs, JPA/Hibernate and relational databases.
Experience developing transactional systems, integrations, business rules and asynchronous processing.
Knowledge of authentication, authorization, security, error handling and observability.
Experience with unit testing, version control, code reviews and engineering best practices.
Ability to work in environments with external integrations, technical dependencies and incremental product evolution.

Benefits

Comp & perks

Meal allowance
Food allowance
Home office subsidy
Health insurance
Dental insurance
Life insurance
Discount partnerships
Agreements with stores and educational institutions
Recurring agility training
Alura licenses