Senior Data Engineer

Ciklum is looking for a Senior Data Engineer to join our team full-time in Ukraine. We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live. About the role: As a Senior Data Engineer, become a part of a cross-functional development team engineering experiences of tomorrow to architect and build the foundational "Data Engine" for the Agent Development Platform (ADP). This role is critical to ensuring that our autonomous AI agents - starting with the Lease Abstraction and CAM Reconciliation agents - have secure, high-fidelity, and schema-mapped data to drive their reasoning. Responsibilities: The Data Engine (ETL/ELT): Design and implement the "Data Engine" responsible for extracting, cleaning, and materializing proprietary Real Estate data into secure, structured views for agent consumption Multi-Layered Data Architecture: Provision and optimize a sophisticated data stack, including PostgreSQL (relational/OLTP), Redshift, Airflow,ChromaDB or PGVector (Vector Stores for embeddings), and GraphDB (Neo4j) for relational knowledge mapping Agent-Data Interfacing: Develop and maintain Model Context Protocol (MCP) adapters and secure SDK endpoints, ensuring agents interact with data through governed interfaces rather than direct database access Knowledge Graph Engineering: Build the initial Knowledge Graph using proprietary client data to model complex relationships between leases, entities, and CAM charges RAG Infrastructure: Configure and maintain the Retrieval-Augmented Generation (RAG) knowledge base, including document ingestion pipelines and metadata management for lease abstracts and historical records Data Isolation & Security: Implement strict logical data isolation models to ensure multi-tenant security, preventing data leakage between different client tenants within the shared platform foundation Requirements: Data Engineering Mastery: Deep expertise in building production-grade ETL/ELT pipelines using Python and SQL; experience with Redshift, Airflow, dbt is highly valued AI Data Stores: Hands-on experience with Vector Databases (Chroma, PGVector) and Graph Databases (Neo4j or Cognee) for AI-native applications Cloud Infrastructure: Proven track record of managing data services within the AWS stack, including RDS, S3, and event-driven architectures Security & Compliance: Experience building data solutions that meet SOC 2 and GDPR standards, with a focus on data masking and zero-trust access patterns Domain Expertise: Familiarity with Commercial Real Estate data structures (Leases, CAM, Invoices) is a significant advantage Desirable: Orchestration: Experience with Temporal for managing long-running data workflows Agentic Frameworks: Understanding of how data interacts with frameworks like LangChain or LangGraph What`s in it for you? Strong community: Work alongside top professionals in a friendly, open-door environment Growth focus: Take on large-scale projects with a global impact and expand your expertise Tailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications Endless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologies Flexibility: Enjoy radical flexibility – work remotely or from an office, your choice Care: We’ve got you covered with company-paid medical insurance, mental health support, and financial & legal consultations About us: At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress. As one of Ukraine’s largest IT companies and a top employer recognized by Forbes, we’ve spent over 20 years delivering meaningful tech solutions. We proudly support diverse talent and military veterans, recognizing their unique skills and perspectives they bring to shaping the future. Explore, empower, engineer with Ciklum! Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum. #LI-NO1 Apply To This Job