Middle Java Engineer

Ciklum is looking for a Middle Java Engineer to join our team full-time in Poland.

We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live.

About the role:

As a Middle Java Engineer, become a part of a cross-functional development team engineering experiences of tomorrow. 

Project Description: Application Modernization

Responsibilities:

• Assist in the development, testing, and deployment of Java-based applications using Spring Boot

• Write clean, maintainable code following standard software development principles

• Constantly learning and open to adopting new technologies and approaches on projects as they evolve, especially those relating to GenAI advancements

• Participates as a software developer on small Agile teams, delivering software-based solutions for migrating and modernizing customer legacy applications to MongoDB

• Follow existing best practice migration playbooks where applicable and be prepared to innovate to fill in gaps with creative solutions to solve challenges on each specific project

• Take direction from the technical lead and project manager on projects, raising identified challenges and potential solutions to the team when applicable

• Be prepared to change project direction if customer or account team priorities change

Requirements:

• Bachelor’s degree in Computer Science, Information Technology, or a related field

• 4-7 years of experience working as a JAVA software developer

• Basic knowledge of Python (e.g., ability to read, understand, and write simple scripts for automation or data handling)

• Good understanding of Java fundamentals and object-oriented programming

• Experience (academic projects, internships, or personal work) with Spring Boot

• Strong proficiency in Java

• Strong experience in building applications that interact with relational databases using SQL

• History of delivering high-cadence modern applications with applied Agile methodologies, test-first development approaches, adopting CI/CD pipelines and using Git version control

• Exposure to building REST APIs with Spring Boot

• Basic understanding of microservices concepts

• Experience in performance and memory optimization of JAVA applications

• Familiarity with tools like Postman, IntelliJ IDEA, and Maven/Gradle

• Exposure to other languages or technologies like JavaScript, SQL

• Understanding of ORM tools like Hibernate, Spring Data or JPA (even through coursework or self-study)

What`s in it for you?

• Strong community: Work alongside top professionals in a friendly, open-door environment

• Growth focus: Take on large-scale projects with a global impact and expand your expertise

• Tailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications

• Endless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologies

• Flexibility: Enjoy flexibility – full remote working possibilities

• Care: We’ve got you covered with company-paid medical insurance, mental health support, and financial & legal consultations

About us:

At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress.With delivery centers in Wrocław and Gdańsk, our 300+ professionals in Poland drive forward-thinking solutions for global clients. Join a community where collaboration sparks innovation—and your impact reaches millions.Want to learn more about us? Follow us on Instagram, Facebook, LinkedIn.

Explore, empower, engineer with Ciklum!

Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum.