Calypso Backend Engineer — Java 17, Spring, Kafka

Accenture Poland; Warszawa; Híbrido; PLN 170 000 - 250 000; Tempo integral

Vantagens oferecidas por esta oferta de emprego

Private medical care

Life insurance

Employee share purchase plan

Coach and People Lead support

Training package and e-learning access

Multisport card access

Resumo da oferta

Accenture Poland is seeking a Java Backend Developer to design, develop, and maintain backend services using Java 17+, Spring Framework, and Spring Boot 3.x for international finance projects. You will work with Nasdaq Calypso, implement messaging integrations, and contribute to secure, well-tested codebases.

The role offers a flexible work mix (remote/onsite) to support collaboration across client teams and Accenture offices in Poland. Strong English and proactive communication are expected.

Qualificações

• 3+ years of commercial experience as a Java Backend Developer
• Experience with Nasdaq Calypso software
• Strong knowledge of Java 17+, Spring Framework, and Spring Boot 3.x
• Experience with messaging platforms such as ActiveMQ/JMS, Kafka, or RabbitMQ
• Experience with SQL Developer
• Experience in writing tests (unit, integration, functional) using JUnit or similar libraries
• Understanding of secure coding practices and common application vulnerabilities
• Solid knowledge of object-oriented programming, design patterns, and clean code principles
• Understanding of application observability concepts, including logging and metrics
• Good written and spoken English (B2+)
• Ownership mindset, proactive attitude, and strong communication skills

Responsabilidades

• Design, develop, and maintain backend services using Java 17+, Spring Framework, and Spring Boot 3.x
• Work with Nasdaq Calypso platform to support and enhance financial systems
• Integrate messaging systems such as Kafka, JMS/ActiveMQ, or RabbitMQ
• Develop and optimize database queries using SQL Developer
• Implement testing strategies (unit, integration, and functional) using JUnit and related tools
• Apply secure coding practices and contribute to improving application reliability and performance
• Collaborate with cross-functional teams to deliver high-quality, maintainable solutions based on clean code and design patterns

Conhecimentos

Java backend development

Java 17+

Spring Framework

Spring Boot 3.x

Nasdaq Calypso

Messaging systems (Kafka, JMS/ActiveMQ

RabbitMQ

SQL Developer

Unit, integration, functional testing

Secure coding practices

Design patterns & clean code

Observability (logging, metrics)

English (B2+)

Ownership mindset

Ferramentas

Nasdaq Calypso

Docker

Kubernetes/OpenShift

Terraform

Helm

Jenkins

ArgoCD

GitOps

Grafana

Kibana

GitHub Copilot

Descrição da oferta de emprego

Accenture Poland is seeking a Java Backend Developer to design, develop, and maintain backend services using Java 17+, Spring Framework, and Spring Boot 3.x for international finance projects. You will work with Nasdaq Calypso, implement messaging integrations, and contribute to secure, well-tested codebases.

The role offers a flexible work mix (remote/onsite) to support collaboration across client teams and Accenture offices in Poland. Strong English and proactive communication are expected.