Data Engineer AI Java/Python/Spark
At Infotree Global Solutions · Warsaw, Poland
- Data and ML
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Where you’ll work
Hybrid, based in Warsaw
“Warsaw, Poland”
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- Posted
- 12 August 2026
- First seen by us
- 15 October 2026
- Last checked
- 3 hours ago
Job description
From Infotree Global Solutions’s job post, as they wrote it.
Role Overview:
We are looking for a Senior/Lead Data & GenAI Engineer to design, build and maintain scalable, production-grade data and AI platforms.
The role combines software engineering, distributed data processing, cloud-native technologies and Generative AI. You will work across teams, drive technical initiatives and build reusable libraries and frameworks that enable reliable, scalable and testable systems.
Read the full description
Key Responsibilities:
* Develop, test and maintain high-quality, production-ready software.
* Design and implement large-scale data pipelines and distributed processing systems.
* Build scalable cloud-native services and platforms using modern engineering practices.
* Provide technical leadership for cross-team initiatives and complex engineering projects.
* Design and develop reusable libraries, frameworks and platform components.
* Optimize distributed data processing workloads for performance, scalability and reliability.
* Work with data platforms including Databricks, Apache Spark and Snowflake.
* Develop and deploy applications using Python and/or Java.
* Build and operate containerized workloads using Kubernetes and cloud-native technologies.
* Design and implement GenAI/LLM-based applications and services.
* Work with frameworks such as LangChain and LangGraph for LLM orchestration and agentic workflows.
* Collaborate with data scientists, software engineers, architects and product teams.
* Establish engineering best practices around testing, observability, reliability and deployment.
Required Experience:
* 5+ years of professional software/data engineering experience.
* Strong hands-on experience with Python and/or Java.
* Strong experience with Apache Spark and distributed data processing.
* Experience with Databricks and/or modern lakehouse platforms.
* Experience with Snowflake or comparable cloud data warehouses.
* Practical experience with Kubernetes and cloud-native technologies.
* Experience designing and maintaining large-scale data pipelines.
* Strong understanding of distributed systems, scalability and production engineering.
* Experience developing ML/AI or GenAI applications.
* Experience with LLM-based applications, RAG, AI agents or LLM orchestration.
* Familiarity with LangChain, LangGraph or similar GenAI frameworks.
* Strong software engineering fundamentals including testing, code quality and system design.
Nice to Have:
* Experience with AWS, Azure or GCP.
* Experience with streaming technologies such as Kafka.
* Experience with Delta Lake / Lakehouse architecture.
* Experience building RAG pipelines and vector-search solutions.
* Experience with LLM evaluation, observability and productionization.
* Experience with AI agents, tool calling and multi-step workflows.
* Experience building internal developer platforms, frameworks or reusable engineering libraries.
* Experience leading cross-functional or cross-team technical initiatives.
Ideal Candidate Profile:
The strongest candidate is not purely a Data Engineer and not purely an ML Engineer.
We are looking for someone who combines:
Software Engineering + Data Engineering + Cloud/Platform Engineering + GenAI
Typical backgrounds may include:
* Senior Data Engineer
* Lead Data Engineer
* Senior Software Engineer – Data
* Data Platform Engineer
* Senior Cloud Data Engineer
* AI/ML Platform Engineer
* Senior ML Engineer with strong data engineering experience
* GenAI Engineer with strong distributed-data/platform experience
* Data & AI Architect / Technical Lead
Core Technology Stack:
Languages: Python, Java
Data: Apache Spark, Databricks, Snowflake, Delta Lake
Cloud/Platform: Kubernetes, Docker, AWS/Azure/GCP, cloud-native technologies
GenAI/ML: LLMs, RAG, LangChain, LangGraph, AI agents, vector search
Engineering: Distributed systems, APIs, CI/CD, automated testing, observability, scalability
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