Senior Java Software Engineer

Reach IT; Lisboa; Presencial; EUR 55 000 - 75 000; Tempo integral

Resumo da oferta

Reach IT is seeking a Senior Java Engineer to join our nearshore software delivery team in Lisbon. You will design and build RESTful services with Java/Spring Boot, contribute to microservices, and collaborate with frontend teams in Angular.

You’ll work with AWS (ECS, Lambda, Step Functions) and messaging (Kafka, SNS/SQS), ensure secure API design, and participate in CI/CD with Docker and Kubernetes across complex financial systems.

Qualificações

• 5+ years of experience with Java and Spring Boot and building REST APIs and microservices.
• Experience with Angular for fullstack development and enterprise applications.
• Hands-on AWS experience (ECS, Lambda, Step Functions, SQS/SNS, CloudWatch).
• Knowledge of Kafka and SNS/SQS integration and asynchronous messaging.
• Strong focus on secure API development and data validation.
• Proficiency with JUnit/Mockito and Spring Test for unit/integration tests.
• Experience with Terraform and Python in AWS-oriented backend engineering.

Responsabilidades

• Design and develop Java/Spring Boot services and REST APIs for financial apps.
• Implement business rules, data validation, and backend logic across services.
• Develop Angular frontends integrated with Java backends for fullstack tasks.
• Build and deploy cloud components using ECS, Lambda, and Step Functions.
• Integrate with RDS/Oracle databases and messaging layers using REST APIs.
• Create automated tests and contribute to CI/CD with Docker and Kubernetes.
• Troubleshoot performance and reliability of Java services and integrations.

Conhecimentos

Java

Spring Boot

Angular

AWS

Kafka

REST APIs

Microservices

JUnit/Mockito

Security

Terraform

Python

Ferramentas

Docker

Kubernetes

Jenkins

GitHub Actions

Jenkins/GitHub Actions

Descrição da oferta de emprego

Our nearshore expertise sets us apart. We specialize in on-demand, scalable teams, technical excellence, and operational reliability. By bridging the talent gap, we support organizations developing secure, scalable and business-critical enterprise applications.

We are looking for a Senior Java Engineer( Spring Boot, Angular & AWS)

To join the software engineering environment of a private banking and wealth management group, operating across multiple financial markets and supporting private clients, institutional investors and investment management operations.

The organization operates a complex technology landscape where client-facing digital applications, financial data, internal business workflows and enterprise banking systems must remain securely connected.

Skills

• +5 years of experience working on Java and Spring Boot, developing REST APIs, backend services and microservices in enterprise;
• Database integration, persistence, transactions and performance optimization;
• Angular for Fullstack profiles (30%) developing enterprise applications connected to Java/Spring Boot backend services;
• AWS services, particularly ECS, Lambda, Step Functions, SQS/SNS and CloudWatch, for cloud-oriented backend positions;
• Asynchronous processing and integration using Kafka and SNS/SQS, depending on the application architecture;
• Docker, EKS and Jenkins/GitHubActions supporting application packaging, automated delivery and deployment;
• Automated testing using JUnit, Mockito and Spring Test (unit and integration testing of backend services);
• Secure API development, authentication, authorization and data validation in business-critical applications;
• Terraform and Python is particularly relevant to AWS-oriented backend engineering.

Responsibilities

• Design and develop Java/Spring Boot services and REST APIs supporting financial applications, enterprise workflows and integrations with existing banking systems;
• Implement business rules, data validation and application logic using Java, Spring Boot and Spring Data, ensuring consistency across backend services and connected applications;
• Design and optimize database interactions using JPA/Hibernate, JDBC and SQL, working with Oracle, PostgreSQL or Aurora-based persistence layers;
• For Fullstack assignments, develop and evolve Angular applications, integrating user interfaces with Java APIs and implementing business workflows and data-driven application features;
• For AWS-oriented assignments, develop and deploy Java backend components using ECS, Lambda and Step Functions, integrating S3, RDS and SQS/SNS according to application requirements;
• Implement integrations between enterprise applications through REST APIs and asynchronous messaging, handling data exchange, error scenarios and dependencies between services;
• Build automated unit and integration tests using JUnit, Mockito and Spring Test, validating business rules, database interactions and API behaviour before deployment;
• Contribute to application delivery through Git, CI/CD, Docker and Kubernetes, collaborating with DevOps teams on deployment configuration and production troubleshooting;
• Investigate and resolve issues involving Java services, database queries, API integrations, asynchronous processing and cloud dependencies, contributing to application performance and reliability;