Senior Data Architect (f/m/x)

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

We are looking for a Senior Data Architect to join our team and lead the design of customer data solutions primarily using Microsoft Fabric and Azure. This role involves working closely with multiple clients, understanding their requirements, and conducting discovery sessions to define target architectures. You will produce high-quality documentation and designs that guide the delivery team while providing technical leadership to Data Engineers and Data Visualization Engineers. If you are passionate about data architecture and enjoy customer-facing roles, this opportunity may be the right fit for you.

Your tasks

• 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

Requirements

• Minimum 5 years of experience in data architecture or a related field
• Strong knowledge and practical experience with 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

Nice to have

• Experience with Power BI and semantic model architecture
• Familiarity with Azure DevOps Boards and Agile/Scrum delivery

Job no. JOB-DFRYA

Sii ensures that all hiring decisions are made solely on the basis of qualifications and competence. We are committed to equal and fair treatment of all, regardless of legally protected characteristics. At Sii, we promote a diverse and inclusive work environment, in full compliance with applicable anti-discrimination laws.

Benefits For You

• Great Place to Work
• Solid financial situation
• Contracts with the biggest brands
• Centre of internal trainings
• Many experts you can learn from
• Open and accessible management team
• Profit sharing
• Passion Sponsorship program
• Regular integration events and trips
• Comfortable and well-equipped offices
• MySii app
• Medical care