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September 4, 2026

Java + Kotlin Developer

Senior • Remote

155 - 175 PLN/yr

Warsaw, Poland

Start date: 01/10/2026

Work arrangement: 100% remote

Commitment: Long-term project; expected availability of at least 12 months.

Description

Join an international project in the Pharma & Life Sciences sector focused on developing modern technology solutions that support biosample-data processes.

The Biosample Portal integrates data related to human biosamples from clinical and non-clinical trials, along with study, subject, and reference data. It provides FAIR (Findable, Accessible, Interoperable and Reusable) biosample data from clinical and non-clinical sources.

The platform supports Pharma Biosample Services through enriched, clean data and more efficient data flows. Its data is used for operational and analytical purposes, including sample-data flow, quality control, and data search. Extracted and transformed data is made available to scientists through the Biosample Portal, a visualization tool for searching biosamples across internal and external repositories.

Key responsibilities

  • Work in a technologically advanced environment on solutions supporting healthcare-related processes.
  • Design and implement new features and conduct technical spikes.
  • Perform code reviews and ensure high-quality code.
  • Provide support for critical production issues when needed.
  • Support the team in software engineering, quality assurance, and validation.
  • Cooperate with internal partners on product status and technology consulting.
  • Interpret business needs and translate them into technical solutions.
  • Prepare specifications and analyze functional and technical requirements.
  • Design solutions and create technical documentation.
  • Estimate individual work scopes and effort.
  • Support architectural and technical decision-making.
  • Share knowledge and mentor less experienced team members.

Qualifications and experience

  • Previous software development experience in enterprise projects or products.
  • Strong understanding of microservice architectures, principles, and patterns.
  • Expert knowledge of Java and backend technologies.
  • Knowledge of other JVM-based technologies.
  • Good knowledge of database technologies, including SQL and NoSQL, with hands-on Elasticsearch experience.
  • Knowledge of Kotlin is nice to have.
  • Good knowledge of testing frameworks and tools such as JUnit and Testcontainers, with practical TDD and BDD experience.
  • Strong understanding of IaaS, PaaS, and SaaS cloud computing models.
  • Experience with containers and a strong DevOps mindset.
  • Excellent knowledge of cloud platforms, particularly AWS.
  • Ability to deploy your own code to production is a plus.
  • Experience developing software products using Scrum methodologies.
  • Excellent communication, teamwork, problem-solving, and deadline-management skills.
  • Experience mentoring and supporting other developers.
  • Fluent English.

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