Senior Java Developer - AI/NLP Solutions

Technologies we use

About the project

Your responsibilities

• Analyze, design, develop, test, and maintain complex enterprise software using Java and related technologies.
• Design scalable backend services and contribute to the evolution of core application frameworks.
• Integrate machine learning models, Large Language Models, and AI services into enterprise applications.
• Collaborate with Product Managers, Business Analysts, architects, and engineers to translate business requirements into sustainable technical solutions.
• Contribute to architectural decisions related to AI integration, data flows, validation, security, observability, and operational support.
• Apply engineering best practices to AI-enabled functionality, including automated testing, output validation, performance monitoring, auditability, and human oversight.
• Provide informed technical guidance during design discussions and code reviews.
• Troubleshoot complex technical issues in mission-critical client environments.
• Mentor junior engineers and contribute to the continuous improvement of engineering practices.

Our requirements

• B.S. or M.S. degree in Computer Science, Software Engineering, Artificial Intelligence, Machine Learning, Data Science, or another relevant technical field.
• At least five years of experience across the full software development lifecycle for enterprise Java applications.
• Strong knowledge of core Java, Spring Boot, REST APIs, microservices, relational databases, and distributed systems using technologies such as Kafka.
• Good understanding of machine learning and NLP fundamentals, including classification, model evaluation, tokenization, embeddings, semantic similarity, and information extraction.
• Good understanding of LLM and Transformer fundamentals, including prompting, context handling, structured outputs, retrieval-augmented generation, model limitations, and integration of AI capabilities into backend applications.
• Strong problem-solving and communication skills, with the ability to collaborate effectively across technical and business teams.

Optional

• Experience with Kubernetes and cloud platforms such as Microsoft Azure.
• Familiarity with vector search, embeddings, retrieval-augmented generation, and document-processing solutions.
• Familiarity with Python, ML or NLP libraries, and model deployment or monitoring practices.
• Understanding of responsible AI, data privacy, explainability, and human-in-the-loop workflows.
• Experience developing software in regulated or data-sensitive environments.

What we offer

• Permanent contract from day one​
• Additional holidays (Birthday Day Off, 3rd and 5th year anniversary Day Off)​
• Gold Medical Package for employees and their families (partner and children)​
• Premium life insurance package and private pension plan​
• Wide range of soft skills training, technical workshops, language classes and development programs​
• Opportunities to volunteer your time to company-driven initiatives, employee networks or organizations of your choice​
• Variety of well-being programs​
• Additional benefits available depending on the seniority of the role

Benefits

Minimum Salary:​ zł182 004 Coroczny