Java Back End Engineer
Design, build, and maintain Java/Spring Boot microservices for a high-performance payment optimisation platform that processes transactions in near real time. Day to day involves REST/gRPC APIs, event-driven messaging, cloud deployments, CI/CD, and observability while collaborating in agile, distributed teams.
- Compensation
- Not disclosed
- Location
- Lisboa, Portugal
- Work setup
- Not specified
- Seniority
- Not specified
- Employment
- Not specified
- Experience
- Not specified
- Category
- Backend
- Posted
Skills
Must have
- Strong experience with Java and Spring Boot
- Experience building microservices architectures
- Experience with RESTful APIs and/or gRPC
- Familiarity with event-driven systems (e.g. messaging platforms)
- Experience with cloud platforms and CI/CD pipelines
- Knowledge of monitoring and observability tools
- Experience working in Agile environments (Scrum/Kanban)
- Strong problem-solving and analytical skills
- Ability to work effectively in distributed teams
- Strong communication skills in English (written and spoken)
Nice to have
- Experience with Apache Kafka or similar messaging systems
- Familiarity with cloud platforms such as PCF or Kubernetes
- Experience with monitoring tools (e.g. Prometheus, Grafana)
- Understanding of payment systems or high-volume transaction platforms
- Experience with automated testing frameworks
- Strong interest in performance optimisation and scalability
- Experience contributing to platform-level or data-driven systems
Full description
We are looking for a Software Engineer to join our team and help build and scale a high-performance, data-driven payment optimisation platform.
In this role, you will work closely with distributed teams across multiple regions, contributing to the development of a modern microservices-based platform that processes transactions in near real time. You will play a key role in designing, developing, and maintaining robust backend services, while helping to drive engineering excellence and continuous improvement.
Responsibilities:
Participate in backlog refinement, sprint planning, and technical design discussions
Write clean, maintainable, and efficient code following best practices
Ensure code quality through testing, code reviews, and continuous integratio
Build and evolve backend services
Design and develop microservices using Java and Spring Boot
Develop and maintain REST and gRPC APIs
Contribute to event-driven architectures using messaging systems
Collaborate across teams:
Work closely with engineers, product owners, and stakeholders across distributed teams
Contribute to the delivery of end-to-end features in an agile environment
Promote knowledge sharing and engineering best practices
Ensure scalability and reliability:
Build resilient and scalable systems deployed in cloud environments
Monitor system performance and troubleshoot production issues
Contribute to observability using logs, metrics, and monitoring tools
Support continuous improvement:
Improve CI/CD pipelines and automation practices
Participate in system design discussions and architectural decisions
Continuously learn and apply modern engineering practices
Requirements:
Strong experience with Java and Spring Boot
Experience building microservices architectures
Experience with RESTful APIs and/or gRPC
Familiarity with event-driven systems (e.g. messaging platforms)
Experience with cloud platforms and CI/CD pipelines
Knowledge of monitoring and observability tools
Experience working in Agile environments (Scrum/Kanban)
Strong problem-solving and analytical skills
Ability to work effectively in distributed teams