Java Developer

AM53 Smart Solutions

Java Developer building and maintaining microservices using Spring Boot. Involves working with Kafka, databases, and CI/CD processes in a hybrid role in São Paulo.

Posted 4/29/2026full-timeSão Paulo • 🇧🇷 BrazilMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

ApacheAWSDockerJavaJUnitKafkaKubernetesMavenMockitoMongoDBPostgresSpringSpring BootSpringBoot

About the role

Key responsibilities & impact

Develop and maintain Java 17 / Spring Boot 3 microservices in the credit card domain
Implement event-driven integrations with Apache Kafka (MSK), including batch consumers, DLT/retry patterns, and idempotency
Develop RESTful APIs following an API-First approach with OpenAPI
Implement integration routes with Apache Camel for service proxying/orchestration
Work with PostgreSQL (Aurora) and MongoDB (DocumentDB) using Spring Data JPA and Spring Data MongoDB
Integrate with legacy systems (mainframe)
Ensure code quality with unit tests (JUnit 5, Mockito), integration tests (REST Assured), coverage (JaCoCo), and static analysis (SonarQube)
Follow Hexagonal Architecture patterns and automated architectural validations (ArchUnit)
Participate in the full CI/CD cycle with GitHub Actions, Docker, Helm, and Kubernetes
Implement resilience patterns (Resilience4j) and observability (OpenTelemetry, telemetry)
Collaborate with the team in agile ceremonies and code reviews.

Requirements

What you’ll need

Strong experience with Java 17+ and Spring Boot 3.x
Knowledge of Apache Kafka (consumers, producers, DLT, retry, batch processing)
Experience with Spring Data JPA and relational databases (PostgreSQL)
Familiarity with Docker and Kubernetes
Experience with automated testing (JUnit 5, Mockito)
Knowledge of RESTful APIs and OpenAPI/Swagger
Experience with Git and GitHub (branching, PRs, code review)
Knowledge of Maven
Understanding of microservices architecture patterns
Experience with Apache Camel
Knowledge of MongoDB / DocumentDB
Familiarity with Hexagonal Architecture (Ports & Adapters)
Experience with AWS (EKS, MSK, Aurora, Secrets Manager, DocumentDB)
Knowledge of Spring Security OAuth2/JWT
Experience with Helm and GitHub Actions
Familiarity with Resilience4j (circuit breaker, retry)
Experience with OpenTelemetry and observability
Knowledge of Spring Batch
Knowledge of OpenAPI Generator (API-First development)
Experience in the financial/banking domain, especially credit cards.

Benefits

Comp & perks

🌐 Worldwide ❌ Jobs You've Hidden ⭐️ Saved Jobs ✅ Applied Jobs ✉️ Email Alerts 👤 Account AM53 Smart Solutions Website LinkedIn All Job Openings 11 - 50 employees Founded 2010 💳 Fintech 🤝 B2B 🏢 Enterprise Fintech
B2B
Enterprise AM53 Smart Solutions is a consultancy and solutions provider focused on optimizing processes and productivity for the payments market. The company offers technical and business analysis, Business Intelligence strategy and implementation, custom application development, and specialized services around Verifone PAYware CMS (issuance and acquiring). AM53 also provides HR recruitment services for technology professionals and delivers integration products and connectors for payment systems. Java Developer 🔥 15 minutes ago 🏢🏡 São Paulo – Hybrid ⏰ Full Time 🟡 Mid-level 🟠 Senior 🔙 Backend Engineer 🗣️🇧🇷🇵🇹 Portuguese Required Apache AWS Docker Java JUnit Kafka Kubernetes Maven Mockito MongoDB Postgres Spring Spring Boot SpringBoot Apply Now Find Hiring Managers Customize resume for this job Report problem ☆ Save ☑️ Mark as applied ❌ Hide 📋 Description
Develop and maintain Java 17 / Spring Boot 3 microservices in the credit card domain
Implement event-driven integrations with Apache Kafka (MSK), including batch consumers, DLT/retry patterns, and idempotency
Develop RESTful APIs following an API-First approach with OpenAPI
Implement integration routes with Apache Camel for service proxying/orchestration
Work with PostgreSQL (Aurora) and MongoDB (DocumentDB) using Spring Data JPA and Spring Data MongoDB
Integrate with legacy systems (mainframe)
Ensure code quality with unit tests (JUnit 5, Mockito), integration tests (REST Assured), coverage (JaCoCo), and static analysis (SonarQube)
Follow Hexagonal Architecture patterns and automated architectural validations (ArchUnit)
Participate in the full CI/CD cycle with GitHub Actions, Docker, Helm, and Kubernetes
Implement resilience patterns (Resilience4j) and observability (OpenTelemetry, telemetry)
Collaborate with the team in agile ceremonies and code reviews. 🎯 Requirements
Strong experience with Java 17+ and Spring Boot 3.x
Knowledge of Apache Kafka (consumers, producers, DLT, retry, batch processing)
Experience with Spring Data JPA and relational databases (PostgreSQL)
Familiarity with Docker and Kubernetes
Experience with automated testing (JUnit 5, Mockito)
Knowledge of RESTful APIs and OpenAPI/Swagger
Experience with Git and GitHub (branching, PRs, code review)
Knowledge of Maven
Understanding of microservices architecture patterns
Experience with Apache Camel
Knowledge of MongoDB / DocumentDB
Familiarity with Hexagonal Architecture (Ports & Adapters)
Experience with AWS (EKS, MSK, Aurora, Secrets Manager, DocumentDB)
Knowledge of Spring Security OAuth2/JWT
Experience with Helm and GitHub Actions
Familiarity with Resilience4j (circuit breaker, retry)
Experience with OpenTelemetry and observability
Knowledge of Spring Batch
Knowledge of OpenAPI Generator (API-First development)
Experience in the financial/banking domain, especially credit cards. Apply Now 📊 Check your resume score for this job Improve your chances of getting an interview by checking your resume score before you apply. Check Resume Score Similar Jobs Senior Java Backend Developer 🔥 40 minutes ago Sinqia 1001 - 5000 💳 Fintech 🏦 Banking 🛍️ eCommerce Website LinkedIn All Job Openings Java Backend Developer at Evertec Sinqia in São Paulo developing backend solutions with Java and Springboot. This role includes working with APIs, SQL databases, and CI/CD processes. 🏢🏡 São Paulo – Hybrid 💰 Post-IPO Secondary on 2015-05 ⏰ Full Time 🟠 Senior 🔙 Backend Engineer 🗣️🇧🇷🇵🇹 Portuguese Required AWS Cloud Docker Java Jenkins Oracle Spring Boot SpringBoot SQL Mid-level Software Developer – C#, ASP.NET 🔥 1 hour ago F360 51 - 200 ☁️ SaaS 💳 Fintech 🤝 B2B Website LinkedIn All Job Openings Develop backend solutions using C# and ASP.NET for F360's web management platforms. Collaborate in multidisciplinary teams and ensure scalable, efficient solutions that support business needs. 🏢🏡 São Paulo – Hybrid ⏰ Full Time 🟡 Mid-level 🟠 Senior 🔙 Backend Engineer 🗣️🇧🇷🇵🇹 Portuguese Required ASP.NET AWS Azure Docker Google Cloud Platform NoSQL RabbitMQ Redis SQL .NET Backend Developer – Mid-level 🔥 6 hours ago FCamara Consulting & Training 1001 - 5000 🛍️ eCommerce 🤖 Artificial Intelligence Website LinkedIn All Job Openings Developing and maintaining APIs and backend applications using .NET (C#). Working in a hybrid environment for a strategic client located in São Paulo. 🏢🏡 São Paulo – Hybrid ⏰ Full Time 🟡 Mid-level 🟠 Senior 🔙 Backend Engineer 🗣️🇧🇷🇵🇹 Portuguese Required AWS Cloud Entity Framework React SQL TypeScript .NET FullStack Developer – .NET, Angular 2+, React (Mid-level) 🔥 6 hours ago FCamara Consulting & Training 1001 - 5000 🛍️ eCommerce 🤖 Artificial Intelligence Website LinkedIn All Job Openings FullStack Developer utilizing .NET and Angular/React to collaborate with a leading Latin American investment bank. Developing and maintaining applications and REST APIs while ensuring best practices. 🏢🏡 São Paulo – Hybrid ⏰ Full Time 🟡 Mid-level 🟠 Senior 🔙 Backend Engineer 🗣️🇧🇷🇵🇹 Portuguese Required Angular AWS Azure Cloud Docker DynamoDB EC2 Entity Framework Kafka Kubernetes MongoDB RabbitMQ React .NET Senior Software Engineer, Java, AI 🔥 10 hours ago banco BV 1001 - 5000 💸 Finance 🏦 Banking 💳 Fintech Website LinkedIn All Job Openings Back-end Developer focusing on Java and AI within top Brazilian bank. Contributing to the development and integration of internal systems for financial solutions. 🏢🏡 São Paulo – Hybrid 💰 Debt Financing on 2022-07 ⏰ Full Time 🟠 Senior 🔙 Backend Engineer 🗣️🇧🇷🇵🇹 Portuguese Required Cloud Cypress Google Cloud Platform Grafana Java Jenkins Jest JUnit Microservices Prometheus Spring Spring Boot SpringBoot View More Backend Engineer Jobs 🌐 Worldwide Built by Lior Neu-ner. I'd love to hear your feedback — Get in touch via DM or support@remoterocketship.com Search Search Jobs by country Search jobs by city Search jobs by job title Search entry-level jobs Search junior-level jobs Search senior-level jobs Search jobs by tech stack Search jobs by contract type Search remote internships Search remote part-time jobs Remote jobs Anywhere in the World Companies Hiring Anywhere in the World Companies Hiring Sales People Anywhere in the World Companies Hiring Software Engineers Anywhere in the World Resources Advice Tips for finding remote jobs Interview questions and answers Resume examples Cover letter examples Post a job Affiliates Privacy policy Terms of service Job board SEO course AI Apply Copilot OpenClaw job finder Jobs by Country Remote jobs anywhere in the world (Worldwide remote jobs) Remote jobs United States Remote jobs Australia Remote jobs Brazil Remote jobs Canada Remote jobs France Remote jobs Ireland Remote jobs Germany Remote jobs Netherlands Remote jobs Spain Remote jobs UK Popular Jobs Remote data analyst jobs Remote customer support jobs Remote executive assistant jobs Remote marketing jobs Remote product designer jobs Remote product manager jobs Remote project manager jobs Remote recruiter jobs Remote sales jobs Remote software engineer jobs Jobs by Type Remote full-time jobs Remote part-time jobs Remote contract jobs Remote internship jobs Remote entry-level jobs Remote jobs with no experience required Remote junior jobs (1-3 years of experience) Digital nomad jobs Remote jobs with no degree required Freelance remote jobs Temporary remote jobs Remote jobs hiring now Stay at home mom jobs

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Hard Skills & Tools

Java 17Spring Boot 3Apache KafkaRESTful APIsSpring Data JPAPostgreSQLMongoDBJUnit 5MockitoApache Camel

Soft Skills

collaborationagile methodologiescode reviews