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Senior Software Engineer

Lancesoft Europe — Poland · Posted ~3 hours ago

Senior Contract Hybrid No Visa

Skills

Java Spring Boot Microservices data processing distributed systems data engineering data technologies GenAI LLM agentic AI

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Summary ✨ AI‑Generated

Elite engineering role demanding deep Java expertise within a fast-paced Polish tech hub. Candidates will architect high-throughput microservice ecosystems while pioneering next-gen AI capabilities. Expect to lead complex backend initiatives spanning data pipelines and intelligent automation.

Highlights

Senior Java Backend Engineer position in Warsaw, Poland focusing on scalable data-intensive applications with emphasis on Generative AI and Agentic AI solutions. Core responsibilities involve hands-on Java backend development using Spring Boot and Microservices architecture, alongside large-scale data processing and production-grade GenAI/LLM implementations.

Description

Job Title: Senior Software Engineer Location: Warsaw, Poland (3/4 days WFO Per Week) Duration: 1-year contract + Extension Role Overview We are looking for a Senior Java Backend Engineer to join a Warsaw-based engineering team working on highly scalable, data-intensive applications with a growing focus on Generative AI and Agentic AI solutions. The role is primarily focused on hands-on Java backend development, with Spring Boot and Microservices at its core. Alongside this, you will have the opportunity to work with large-scale data technologies and contribute to production-grade GenAI/LLM and agentic applications. Essential Skills & Experience Strong hands-on experience with Java development.Strong experience with Spring Boot and Microservices.Proven experience writing and delivering production-quality code.Experience working independently and taking ownership of technical decisions.Experience with large-scale data processing, distributed systems or data engineering.Hands-on experience with one or more of:Apache SparkDatabricksSnowflakeExperience building production GenAI / LLM-based applications or Agentic AI solutions.Experience with an LLM/AI framework such as LangChain, LangGraph or an equivalent framework.Strong communication skills and the ability to work directly with users/stakeholders.Nice to Have Experience with RAG, AI Agents or agentic workflows.Python experience, particularly in the context of GenAI/LLM solutions.AWS or other cloud experience.Kubernetes / cloud-native application experience.Experience working with high-volume, data-intensive applications.