Senior Fullstack Developer, Java

Cadmus Soluções em TI

Senior Java Developer tasked with backend application development using Java 21+ for critical solutions in the insurance sector. Collaborating on architectural decisions and ensuring software quality.

Posted 6/13/2026full-timeRemote • 🇧🇷 BrazilSeniorWebsite

Tech Stack

Tools & technologies

AWSAzureCloudDockerGoogle Cloud PlatformGrafanaHibernateJavaKubernetesNoSQLPrometheusRabbitMQSpringSpring BootSpringBoot

About the role

Key responsibilities & impact

Develop and evolve backend applications using Java 21+ and Spring Boot;
Contribute to the definition of distributed system architectures, ensuring scalability, resilience and performance;
Design and implement REST APIs following best practices for security, versioning and observability;
Work on modeling and evolution of relational databases and integrations with NoSQL solutions;
Implement and maintain messaging-based solutions using RabbitMQ;
Ensure delivery quality through automated tests, code reviews and software engineering best practices;
Provide technical support to the team during refinements, solution design and architectural decision-making;
Participate in the analysis and resolution of production incidents, driving continuous improvements to the platform;
Contribute to the advancement of the organization's development, architecture and observability standards.

Requirements

What you’ll need

Strong experience with Object-Oriented Programming (OOP);
Advanced experience with Java 21 or newer;
Practical application of SOLID principles;
Strong knowledge of Clean Code, refactoring and development best practices;
Experience with Design Patterns (Gang of Four);
Familiarity with Clean Architecture, Hexagonal Architecture and Domain-Driven Design (DDD) principles;
Experience building high-availability APIs and microservices;
Proficiency with Spring Boot;
Experience with Spring Data, JPA and Hibernate;
Knowledge of relational database modeling;
Experience with NoSQL databases;
Understanding of performance strategies, indexing and query optimization;
Knowledge of distributed systems concepts;
Understanding of consistency, availability and fault tolerance principles (CAP theorem);
Experience with resilience patterns, idempotency and asynchronous processing;
Experience with RabbitMQ, including queues, exchanges, bindings and retry strategies;
Knowledge of distributed transactions and event-driven architecture;
Experience with Git and versioning strategies;
Experience with Docker and Docker Compose;
Knowledge of Kubernetes;
Experience with monitoring and observability using Grafana and Prometheus;
Knowledge of application instrumentation using Micrometer;
Experience in CI/CD environments;
Experience with unit and integration testing;
Knowledge and application of TDD;
Experience with code review and software engineering practices;
Ability to act as a technical reference for the team;
Analytical mindset and problem-solving orientation;
Good communication skills and ability to discuss technical solutions with different areas;
Adaptability to changing contexts and priorities;
Proactivity in identifying technical and process improvements;
Collaboration and teamwork;
Commitment to quality, governance and technical excellence;
Experience in mission-critical, high-volume environments;
Knowledge of event-driven architecture;
Experience with cloud platforms (AWS, Azure or GCP);
Experience with distributed observability practices and OpenTelemetry;
Knowledge of DDD, CQRS and Event Sourcing.

Benefits

Comp & perks

🍽 Meal allowance and/or food voucher (iFood Benefícios)
🏥 Health insurance (Amil)
💼 Life insurance
😁 Dental care (Amil)
🚗 Fuel allowance
🏋 Gympass/Wellhub: Access to gyms and multiple training modalities
🐶 Pet health plan
👶🏻 Childcare assistance
💳 Lincard: Partnership club with discounts up to 60% at over 4,000 establishments in Brazil.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Java 21Spring BootObject-Oriented ProgrammingSOLID principlesClean CodeDesign PatternsClean ArchitectureDomain-Driven DesignRabbitMQNoSQL databases

Soft Skills

analytical mindsetproblem-solving orientationgood communication skillsadaptabilityproactivitycollaborationteamworkcommitment to qualitytechnical referencecontinuous improvement