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1. Java/Angular Fullstack Developer | Mid (Remote)

Role overview

Qualifications

  • Bachelor's degree in Computer Science or related fields
  • Solid experience with Spring Boot WebFlux, Project Reactor (Mono/Flux) and reactive programming
  • Strong knowledge of functional programming paradigm
  • Familiarity with reactive databases (R2DBC, Reactive MongoDB) and SQL (PostgreSQL, indexing, query planning)

Responsibilities

  • Develop high-performance reactive APIs using Spring Boot WebFlux, ensuring scalability and low latency in asynchronous environments
  • Design and implement event-driven architectures with patterns like CQRS, Event Sourcing, and messaging via Apache Kafka or Redpanda
  • Optimize non-blocking I/O operations with reactive programming (Project Reactor) and functional programming techniques (Java Functional APIs, Vavr)
  • Ensure resilience and fault tolerance in microservices through patterns like Circuit Breaker (Resilience4j), Retry, and Dead Letter Queue (DLQ)

About the company

Compass.uol logo

Compass.uol

Digital Transformation Consulting

Compasso UOL is a Brazilian technology company owned by the UOL Group, which offers technology services, and provides state-of-the-art solutions, contributing to the digital transformation of its customers so they can become leaders in its sectors of activity. Compasso UOL is a company that cultivates people's talent and use state-of-the-art technologies such as Agile Development, Multicloud, Data&Analytics, Cyber Security, Artificial Intelligence/Machine Learning, APIs/Microservices, IoT and others, providing technology and knowledge that help customers in building digital solutions that enable the transformation and evolution of their business.

Company details

Company typeXLarge
IndustryDigital Transformation Consulting
Company size5001 - 10000

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Job description

JOB DESCRIPTION


.


RESPONSIBILITIES AND ASSIGNMENTS


- Desenvolver APIs reativas e de alta performance utilizando Spring Boot WebFlux, garantindo escalabilidade e baixa latência em ambientes assíncronos;

- Projetar e implementar arquiteturas event-driven com padrões como CQRS, Event Sourcing e mensageria via Apache Kafka ou Redpanda;

- Otimizar operações de I/O não-bloqueante com programação reativa (Project Reactor) e técnicas de programação funcional (Java Functional APIs, Vavr);

- Garantir resiliência e tolerância a falhas em microsserviços através de padrões como Circuit Breaker (Resilience4j), Retry e Dead Letter Queue (DLQ);

- Trabalhar com bancos de dados reativos (MongoDB Reactive Streams);

- Integrar sistemas heterogêneos (SOAP, REST, gRPC) com foco em contratos definidos (OpenAPI, Protocol Buffers);

- Participar da definição de boas práticas e arquiteturas como Clean Code, SOLID, DDD e testes automatizados (JUnit, TestContainers, MockWebServer);

- Colaborar com times de DevOps na construção de pipelines CI/CD (GitHub Actions.


REQUIREMENTS AND QUALIFICATIONS



- Graduação em Ciência da Computação ou áreas afins;

- Experiência sólida com Spring Boot WebFlux, Project Reactor (Mono/Flux) e programação reativa;

- Sólidos conhecimentos do paradigma funcional;

- Boa base acadêmica, principalmente em avaliação e otimização de algoritmos;

- Domínio de Apache Kafka (produtores/consumidores, Kafka Streams, Schema Registry) ou Redpanda;

- Conhecimento avançado em estruturas de dados (álgebra de listas, grafos, estruturas imutáveis) e algoritmos;

- Familiaridade com bancos reativos (R2DBC, Reactive MongoDB) e SQL (PostgreSQL, indexação, query planning);

- Experiência em arquiteturas distribuídas (Saga, Outbox Pattern) e mensageria (RabbitMQ, Pulsar);

- Proficiência em Java 17+ (Records, Pattern Matching, Virtual Threads) e ferramentas como Lombok, MapStruct;

- Conhecimento em cloud computing (AWS/GCP) e containers (Docker, Kubernetes);

- Vivência com observabilidade (OpenTelemetry, Micrometer) e logging estruturado (ELK, Grafana Loki).


Become a Compasser, be part of AI/R.


Compass UOL is a global firm and part of the AI Revolution Company, together transforming organizations using Artificial Intelligence, Generative AI, and other of today’s most advanced technologies.


We equip our team with proprietary and external AI-driven tools to design and build digital-native platforms, integrating cutting-edge technologies and enabling companies to innovate, transform their businesses, and drive success in their markets.

To achieve this, we attract and develop the best talent, creating opportunities that enhance people’s lives and highlight the positive impact of disruptive technologies.

We empower borderless talent and promote knowledge and opportunities in the latest market trends, driving significant personal and professional growth.

Join us and be part of the AI-driven revolution.


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MR

Marcus Rivera

Chief Revenue Officer

m.rivera@company.com
linkedin.com/in/marcusrivera
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