Java Software Engineer, Calypso

Grupo Data Portugal

Java Software Engineer designing backend solutions with Calypso for financial services. Implementing scalable architectures using modern software engineering practices.

Posted 7/23/2026full-timeRemote • 🇧🇷 BrazilMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in backend development with Java, focusing on microservices architecture and cloud deployment. Proficient in integrating services using RESTful APIs and ensuring software quality through testing practices and observability tools.

Highest-signal resume keywords

Java Backend DevelopmentMicroservices ArchitectureAWS Cloud DeploymentRelational and NoSQL DatabasesCI/CD Pipeline Management

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Java (8–11)Microservices DevelopmentRESTful APIsRelational DatabasesNoSQL DatabasesEvent StreamingUnit TestingIntegration TestingCI/CD ToolsSoftware Engineering Principles

Soft Skills

Strong Planning SkillsGood Communication SkillsAnalytical SkillsProactive MindsetProblem-Solving Skills

Tools & Technologies

Calypso PlatformDockerKubernetesDatadogJenkinsKafkaRabbitMQAWS LambdaPostmanNewman

Industry Keywords

Financial MarketsMulti-Cloud EnvironmentsEvent-Driven MicroservicesObservability Best PracticesClean Code Practices

Tech Stack

Tools & technologies

AWSAzureDockerDynamoDBGoogle Cloud PlatformJavaJenkinsJUnitKafkaKubernetesMongoDBMySQLPostgresRabbitMQ

About the role

Key responsibilities & impact

Design and implement prioritized backend features, following software engineering best practices.
Deliver scalable, flexible, and resilient solutions aligned with modern architectural principles.
Apply and advocate architectural patterns such as event-driven microservices.
Participate in technical discussions and contribute to the evolution of the product's technical architecture.
Provide technical input during product discussions to support architecture-related decisions.
Integrate internal and external services using RESTful APIs, asynchronous messaging, and event hubs.
Ensure consistent functional and technical validations throughout the development lifecycle.

Requirements

What you’ll need

More than 4 years of backend development experience with Java (8–11).
Experience with the Calypso platform.
Experience developing and deploying microservices in public cloud environments (preferably AWS).
Strong knowledge of relational databases (e.g., MySQL, PostgreSQL) and NoSQL databases (e.g., DynamoDB, MongoDB).
Experience with messaging systems and event streaming (e.g., Kafka, RabbitMQ, SQS, SNS).
Familiarity with microservices architecture, including containerization (Docker) and orchestration (Kubernetes).
Familiarity with observability best practices (structured logging, metrics, health checks) using tools like Datadog.
Experience with testing practices: unit testing (JUnit), integration testing, and contract testing (Postman/Newman).
Experience with CI/CD pipelines using tools like Jenkins or similar.
Understanding of software engineering principles and clean code practices (Design Patterns, SOLID, Clean Code, Twelve-Factor App).
Experience in financial markets environments.
Experience with serverless services (e.g., AWS Lambda).
Experience in multi-cloud environments (Azure, GCP).
Strong planning and organizational skills, with the ability to manage priorities and multiple tasks.
Good communication and interpersonal skills to discuss issues and solutions clearly.
Strong analytical skills and logical reasoning.
Proactive mindset with strong problem-solving skills and a sense of ownership.
English proficiency at B1+ (desirable).

Benefits

Comp & perks

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