Senior Data Architect — Azure & Fabric, Customer‑Facing Lead

Sii Poland; Łódź; On-site; PLN 180,000 - 320,000; Full time

Benefits offered by this job

Great Place to Work

Profit sharing

Centre of internal trainings

Many experts you can learn from

Regular integration events and trips

Medical care

Open and accessible management team

Job summary

Sii Poland is seeking a Senior Data Architect to lead customer data solution design, primarily using Microsoft Fabric and Azure. You will guide delivery teams, conduct discovery sessions, and provide technical leadership to Data Engineers and Visualization Engineers.

You will architect solutions with Lakehouse and Medallion patterns, define Kimball-based dimensional models, and document high-level designs and data flows for complex projects across multiple clients.

Qualifications

• Minimum 5 years of experience in data architecture or a related field.
• Strong knowledge of Microsoft Fabric, including OneLake, Lakehouse and Data Factory.
• Expertise in data warehousing and Kimball dimensional modeling.
• Proficiency in Medallion architecture and modern data engineering patterns.
• Hands-on experience with Azure data services and integration patterns.
• Familiarity with CI/CD, Git, and deployment approaches for modern data platforms.
• Excellent communication skills to lead customer-facing technical discussions and workshops.
• Fluent English.
• Residency in Poland.

Responsibilities

• Acting as the technical authority for data architecture and design throughout the project lifecycle.
• Leading customer discovery, requirements gathering, and envisioning sessions.
• Building strong relationships with customer stakeholders and communicating confidently with both technical and non-technical audiences.
• Translating business requirements into clear technical requirements, architectures, and delivery approaches.
• Producing high-quality HLDs, architecture diagrams, data flows, data models, and supporting technical documentation.
• Designing Microsoft Fabric solutions using appropriate Lakehouse, Warehouse, OneLake, and Medallion architecture patterns.
• Defining dimensional models using Kimball principles, including facts, dimensions, star schemas, grain, surrogate keys, and Slowly Changing Dimensions.
• Making and documenting architectural decisions, including rationale, assumptions, dependencies, and technical risks.

Skills

Microsoft Fabric

Azure data services

Kimball modeling

Data warehousing

Medallion architecture

OneLake

Lakehouse

Power BI

CI/CD

Git

Stakeholder comms

English fluency

Tools

Azure Data Factory

Git

CI/CD pipelines

Job description

Sii Poland is seeking a Senior Data Architect to lead customer data solution design, primarily using Microsoft Fabric and Azure. You will guide delivery teams, conduct discovery sessions, and provide technical leadership to Data Engineers and Visualization Engineers.

You will architect solutions with Lakehouse and Medallion patterns, define Kimball-based dimensional models, and document high-level designs and data flows for complex projects across multiple clients.