The posting
Jira ticket
If you like building real systems at the intersection of data, backend engineering, and AI, this role is for you. We’re looking for a Data Engineer specialist to take ownership of our MarTech data infrastructure — from automating data flows and writing backend services to integrating LLMs and designing APIs across our entire data ecosystem.
In this role, you will:
- Build and maintain Airflow DAGs to integrate new data sources into BigQuery and GCS.
- Integrate new MarTech and SaaS tools via external APIs and automate end-to-end data flows.
- Build analytical models, data marts, staging layers, testing, and documentation using dbt.
- Develop backend services, API layers, and internal tooling on top of data integrations using FastAPI and Django.
- Integrate LLM frameworks (LangChain, LangGraph, Haystack, LlamaIndex) and automation tools like n8n into internal systems.
- Design, build, and support ETL/ELT pipelines and operational workflows across PostgreSQL and BigQuery.
- Participate in architecture design for new systems, data infrastructure, and automation services.
Skills you’ll need to bring:
- At least 3 years of Data Engineering experience, backed by professional Python skills for building production-ready code and backend services.
- Strong SQL knowledge with hands-on experience in BigQuery and PostgreSQL.
- Practical experience with dbt (data modeling, testing, and documentation).
- Hands-on experience with Apache Airflow for writing and maintaining DAGs.
- Solid understanding of data modeling principles (OLAP/OLTP, data marts, Kimball / Inmon methodologies).
- Proven experience integrating external APIs and third-party SaaS services.
- Practical experience with LLM frameworks (LangChain, LangGraph, Haystack, or LlamaIndex).
- Experience with containerization and CI/CD tools (Docker, Git, CI/CD pipelines).
- At least an Intermediate level of English and fluent Ukrainian.
As a plus:
- Familiarity with the MarTech ecosystem and marketing data workflows.
- Basic experience or familiarity with Kubernetes.
- Experience with React or Vue for internal UI development.



