Senior Java Backend Engineer - Spring Boot & Cloud APIs

Sii Poland; Szczecin; On-site; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Great Place to Work

Medical care

Profit sharing

Centre of internal trainings

Many experts you can learn from

Open and accessible management team

Office in Szczecin

Job summary

Sii Poland is seeking a seasoned Java backend developer to build and optimize RESTful services in a modern financial services domain. You will design backend components, work with SQL databases, and contribute to architecture and CI/CD efforts from a Szczecin-area office.

The role requires 5+ years of Java with Spring, cloud and container experience, and Polish fluency. You will join a collaborative team delivering scalable financial software solutions for banking offers and services.

Qualifications

• At least 5 years of experience developing Java applications with Spring Boot.
• Experience designing and implementing RESTful APIs.
• Strong SQL knowledge and query optimization skills.
• Git and CI/CD tooling experience (e.g., Azure DevOps).
• Experience with cloud platforms (GCP) and Kubernetes.
• Knowledge of Kafka, Redis and ServiceMesh technologies.
• Fluent Polish and residing in Poland.

Responsibilities

• Designing and developing backend Java applications according to requirements and standards.
• Implementing and enhancing RESTful APIs.
• Working with SQL databases and optimizing queries.
• Collaborating on system architecture design and development.
• Writing and maintaining unit tests.
• Participating in code reviews and ensuring code quality.
• Cooperating with analysts, testers, and other team members.
• Supporting deployment processes and CI/CD.

Skills

Java

Spring Boot

Spring Framework

RESTful APIs

SQL

Git

CI/CD

GCP

Kubernetes

Kafka

Redis

Polish language

Tools

Azure DevOps

Job description

Sii Poland is seeking a seasoned Java backend developer to build and optimize RESTful services in a modern financial services domain. You will design backend components, work with SQL databases, and contribute to architecture and CI/CD efforts from a Szczecin-area office.

The role requires 5+ years of Java with Spring, cloud and container experience, and Polish fluency. You will join a collaborative team delivering scalable financial software solutions for banking offers and services.