Kotlin / Java Developer
ref nr: 61/3/2026/TM/94695
In Antal we have been dealing with recruitment for over 20 years. Thanks to the fact that we operate in 10 specialised divisions, we have an excellent orientation in current industry trends. We precisely determine the specific nature of the job, classifying key skills and necessary qualifications. Our mission is not only to find a candidate whose competences fit the requirements of the given job advertisement, but first and foremost a position which meets the candidate’s expectations. Employment agency registration number: 496.
📍 Location: Kraków, Poland (hybrid - 6 days per month in the office)
📄 B2B Contract: 180 - 230 PLN / hour
We are looking for a Kotlin / Java Developer to join an international project delivered for a large organization within the financial services sector. The team is building an internal engineering platform that supports development teams in managing software development standards, quality controls and compliance across the organization.
This role involves working on modern web applications and APIs built with Kotlin and Java, based on a microservices architecture. The scope of responsibilities will be adjusted to the candidate’s experience and technical profile.
Key Responsibilities:
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Collaborate with developers, testers and business stakeholders to build and operate internal products.
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Design, develop and implement backend features and selected UI components according to backlog priorities.
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Build and maintain APIs and microservices that address real business and engineering challenges.
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Work closely with the wider engineering team to design and deliver new features.
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Proactively engage with internal users to resolve issues and respond to feature requests.
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Contribute within an Agile, CI/CD-driven environment enabling frequent and stable releases.
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Participate in code reviews and support quality through testing, including automated test scripts.
Requirements:
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Commercial experience with Kotlin, or Java with a strong willingness to learn Kotlin.
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Hands-on experience in at least 2 of the following areas: API development, SQL / databases, HTML / JavaScript.
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Experience working with collaboration tools such as Jira, Confluence and Bitbucket.
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Solid understanding of microservices architecture.
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Strong analytical and troubleshooting skills.
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Good communication and collaboration skills.
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English proficiency at B2+ level.
Nice to Have:
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Experience with Jenkins and CI/CD pipeline design.
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Knowledge of test automation practices.
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Familiarity with cloud platforms such as AWS, Azure or GCP.
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Background in system administration (Linux / AIX / WAS).
What We Offer:
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Long-term cooperation on an enterprise-scale international project.
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Exposure to modern technologies and microservices-based architectures.
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Real influence on the development of internal engineering platforms.
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Access to internal trainings, workshops and technical knowledge-sharing sessions.
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Private medical care (LuxMed) & Multisport card.
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Collaboration with experienced, international engineering teams.
