Calypso Developer

Accenture Poland

Warszawa

Hybrid

PLN 170,000 - 250,000

Full time

14 days+

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Benefits offered by this job

Private medical care

Life insurance

Employee share purchase plan

Coach and People Lead support

Training package and e-learning access

Multisport card access

Job summary

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.

Qualifications

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

Responsibilities

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

Skills

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

Tools

Nasdaq Calypso

Docker

Kubernetes/OpenShift

Terraform

Helm

Jenkins

ArgoCD

GitOps

Grafana

Kibana

GitHub Copilot

Job description

WHO WE ARE

Accenture is a leading global professional services company that helps the world's leading businesses, governments and other organizations build their digital core, optimize their operations, accelerate revenue growth and enhance citizen services. We offer solutions and assets across Strategy & Consulting, Technology, Operations, Industry X and Accenture Song.

At Accenture Technology, you will work with modern engineering practices and technologies to deliver scalable, secure, and high-quality solutions for global clients while continuously developing your expertise.

THE WORK

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

Flexible: The work location for this role may include a mix of working remotely, onsite at a client or in an Accenture office - depending on specific project circumstances. With all our roles, there is some in-person time for collaboration, learning and building relationships with clients, peers, leaders, and communities. As an employer, we will be as flexible as possible to support your specific work/life needs.

WHAT’S IN IT FOR YOU

Work on international projects in the financial domain, gaining exposure to advanced banking systems and technologies
Collaborate with experienced engineers and continuously expand your technical expertise
Contribute to projects where learning, improvement, and knowledge sharing are part of daily work.

HERE’S WHAT YOU’LL NEED

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

Research indicates that some candidates, especially the most diverse ones, may hesitate to apply for positions if they don't meet all requirements. If you believe you possess the necessary skills, even if not meeting every requirement, we wholeheartedly encourage you to submit your application.

BONUS POINTS IF YOU HAVE

Experience with Infrastructure as Code tools (Terraform, Helm)
Knowledge of CI/CD tools such as Jenkins or ArgoCD
Familiarity with GitOps practices
Experience with Docker and Kubernetes/OpenShift
Experience with monitoring and observability tools such as Grafana or Kibana
Experience using AI-assisted development tools (e.g., GitHub Copilot, Claude Code)

WHAT WE OFFER

Permanent employment contract.
Individual support of a People Lead and a specific path of professional development, as well as the possibility of a session with a Coach.
A wide training package (soft, technical, and language training offer, access to the e-learning platforms, Gallup test, GenAI training, possibility of co-financing courses, and certification).
Employee Assistance Program - legal, financial, and psychological consultations.
Accenture employees eligible for the Employee share purchase plan automatically become eligible for quarterly dividends if they own company shares.
Paid employee referral program.
Private medical care, life insurance.
Access to the Worksmile platform (possibility of using a wide range of products and services, including the Multisport card).

WHAT WE BELIEVE

Accenture does not discriminate employment candidates on the basis of race, religion, color, sex, age, disability, national origin, political beliefs, trade union membership, ethnicity, denomination, sexual orientation or any other basis impermissible under Polish law.

All our leaders are committed to building a better, stronger and more durable company for future generations to create positive, long-lasting change. Inclusion and diversity are fundamental to our culture and core values. Our rich diversity makes us more innovative and creative, which helps us better serve our clients and our communities.

Our position as partner to many of the world's leading businesses, organizations and governments affords us both an extraordinary opportunity and a tremendous responsibility to make a difference. Sustainability is one of our greatest responsibilities, which we embed it into everything we do and for everyone we work with.

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