Senior Java Backend Engineer - Hybrid (Lisbon/Porto)

Komodo Consulting; Lisboa; Hybrid; EUR 70,000 - 90,000; Full time

Job summary

Komodo Consulting, a technology and strategy firm, seeks a Senior Java Backend Developer to own backend services and APIs across multi-country markets. You will collaborate with the Product Owner, design robust code, and drive testable solutions within an agile team.

The role covers system design, documentation, and CI/CD deployments, with a strong emphasis on modern tech like Kafka, Kubernetes, and cloud platforms. Hybrid Lisbon-area work is expected.

Qualifications

• Proven experience with mission-critical Java applications, particularly in the banking and finance sectors.
• In-depth understanding of the software development lifecycle and agile methodologies.
• Proficiency in relational databases and ACID properties.
• Hands-on experience with Apache Kafka fundamentals (offsets, partitions, consumer groups).
• Knowledge of observability tools such as Grafana, ELK, and Datadog.
• Experience with cloud platforms, containers, CI/CD pipelines, and DevOps practices.
• Strong knowledge of microservices architecture and asynchronous communication.
• Up-to-date with Kubernetes, Prometheus, AWS, NoSQL, and messaging systems.
• Excellent communication skills and the ability to mentor others.
• Strong problem-solving skills and continuous learning mindset.
• English C1

Responsibilities

• Develop and maintain backend services and APIs using Java and related technologies.
• Collaborate with the Product Owner to gather and refine requirements.
• Design and implement well-structured, testable, and efficient code to solve business needs.
• Create flowcharts, layouts, and documentation to support the development process.
• Develop unit, component, and integrated tests with the QA team.
• Deploy applications in a Continuous Integration (CI) platform.
• Test and document implemented solutions to ensure high quality and maintainability.
• Participate in code reviews and provide constructive feedback to teammates.
• Stay updated with industry trends and best practices in backend development.

Skills

Java backend

Banking/Finance domain

SDLC & Agile

Relational databases

Apache Kafka

Observability tools

Cloud platforms

Containerization & CI/CD

DevOps practices

Microservices

Kubernetes

Prometheus

AWS

NoSQL & messaging

English (C1)

Leadership & mentoring

Communication

Problem-solving

Tools

Kafka tooling

Grafana

ELK

Datadog

Job description

Komodo Consulting, a technology and strategy firm, seeks a Senior Java Backend Developer to own backend services and APIs across multi-country markets. You will collaborate with the Product Owner, design robust code, and drive testable solutions within an agile team.

The role covers system design, documentation, and CI/CD deployments, with a strong emphasis on modern tech like Kafka, Kubernetes, and cloud platforms. Hybrid Lisbon-area work is expected.