Senior Data Architect (f/m/x)

Sii Poland; Bydgoszcz; On-site; PLN 220,000 - 320,000; Full time

Benefits offered by this job

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

Job summary

Sii Poland seeks a Senior Data Architect to lead the design of customer data solutions, primarily using Microsoft Fabric and Azure. You will guide delivery teams and conduct discovery sessions with clients, providing technical leadership to Data Engineers and Data Visualization Engineers.

The role involves producing high-quality documentation and designs, shaping target architectures, and collaborating with stakeholders across multiple projects. Fluent English and Poland residency are required.

Qualifications

• Minimum 5 years in data architecture or related field.
• Strong Microsoft Fabric knowledge: OneLake, Lakehouse, Data Factory.
• Expert in data warehousing and Kimball dimensional modeling.
• Proficient in Medallion architecture and modern data engineering.
• Hands-on with Azure data services and integration patterns.
• Experience with CI/CD, Git and deployment of modern data platforms.
• Excellent communication for customer-facing technical workshops.
• Fluent English and residency in Poland.

Responsibilities

• Act as technical authority for data architecture and design through the project lifecycle.
• Lead customer discovery, requirements gathering, and envisioning sessions.
• Build relationships with customer stakeholders and communicate with technical and non-technical audiences.
• Translate business requirements into technical architectures and delivery approaches.
• Produce high-quality HLDs, diagrams, data flows, and data models.
• Design Microsoft Fabric solutions using Lakehouse, OneLake, and Medallion patterns.
• Define dimensional models with Kimball principles including stars and surrogates.
• Document architectural decisions with rationale, assumptions, dependencies and risks.

Skills

Data architecture

Microsoft Fabric

Kimball modeling

Medallion architecture

Azure data services

CI/CD & Git

Customer-facing

English fluent

Tools

Microsoft Fabric

OneLake

Lakehouse

Data Factory

Azure DevOps Boards

Git

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