Senior Java Backend Developer – Financial Technology

5 098 - 6 231 USDNet per month - B2B
Java

Senior Java Backend Developer – Financial Technology

Java
Centrum, Warszawa

ITDS

Full-time
B2B
Senior
Remote
5 098 - 6 231 USDNet per month - B2B

Job description

Unleash innovation in financial technology — shape the future of transactional systems with expertise and precision!

100% remote work.

As a Senior Java Developer, you will be working for our client, a leading player in the financial services industry dedicated to delivering cutting-edge transactional and banking systems. You will contribute to the development of robust, scalable solutions that power high-stakes online financial operations, driving digital transformation and operational excellence. This role offers a unique chance to advance your career within an innovative environment that values technical mastery and strategic thinking.

Your main responsibilities:

  • Design, develop, and optimize complex backend systems using Java 21+ and Spring Boot 3, adhering to best practices and high-quality standards.
  • Work with domain-driven design (DDD) to implement scalable and maintainable software solutions.
  • Manage and optimize data solutions utilizing PostgreSQL, Redis, and integration tools like RabbitMQ and Kafka.
  • Utilize tools such as ELK stack, Dynatrace, and CI/CD pipelines (GitLab, Jenkins, OpenShift) to ensure system performance and reliability.
  • Conduct thorough testing and validation using JUnit 5, Mockito, and RestAssured to deliver resilient software releases.
  • Collaborate with agile teams (Scrum, Kanban) for iterative development and continuous improvement.
  • Contribute analytical insights and high-level problem-solving skills to support transaction systems in a fast-paced financial environment.

You're ideal for this role if you have:

  • At least 5 years of experience in Java development, with a strong background in Spring Boot 3 and Java 21+.
  • Solid understanding of database technologies, particularly PostgreSQL.
  • Practical experience with CI/CD tools such as GitLab, Jenkins, and deployment on OpenShift.
  • Familiarity with message brokers like RabbitMQ and Kafka.
  • Knowledge of monitoring and logging tools (ELK stack, Dynatrace).
  • Experience with automated testing frameworks including JUnit 5, Mockito, and RestAssured.
  • Strong analytical skills and experience working within agile methodologies (Scrum, Kanban).

It is a strong plus if you have:

  • Experience in the finance sector and knowledge of financial risk modeling.
  • Certifications related to cloud, database management, or software development.
  • Basic knowledge of R language and SQL testing.

Language required for the role: Polish (good command), English (communicative proficiency).

Eligibility to work in Europe: Only candidates with an existing legal right to work within the European Union will be considered for this role.

Tech stack

    Polish

    C2

    Java 21+

    master

    Spring Boot 3

    advanced

    Domain-Driven Design (DDD)

    advanced

    PostgreSQL

    advanced

    CI/CD (GitLab/Jenkins/OpenShift)

    advanced

    RabbitMQ

    regular

    Kafka

    regular

    ELK Stack / Dynatrace

    regular

    JUnit 5 / Mockito / RestAssured

    regular

    R language

    nice to have

Office location

Senior Java Backend Developer – Financial Technology

5 098 - 6 231 USDNet per month - B2B
Summary of the offer

Senior Java Backend Developer – Financial Technology

Centrum, Warszawa
ITDS
5 098 - 6 231 USDNet per month - B2B
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