Senior Business Intelligence Consultant

Job Title: Senior Business Intelligence Specialist
Location: Lisbon, Portugal
Work model: Full-time, Hybrid (2x office per week)
About Mozaydo
Mozaydo was built by people who believe work should feel human - even when powered by technology.
We're a remote-first company that connects talent, technology, and purpose to help companies grow sustainably.
Here, ownership matters more than control, and progress matters more than perfection.
People powered. Technology enabled.
About the Role
We're expanding our Technology Services Team capacity to support our customers.
We are looking for a Senior Business Intelligence Specialist with strong expertise in the Microsoft SQL ecosystem to design, develop, maintain, and optimize corporate BI solutions. This role is focused on delivering high-quality, performant, secure, and reliable analytical platforms, supporting critical business decision-making in complex and data-driven environments.
Responsibilities
Design, develop, and maintain end-to-end Business Intelligence architectures within the Microsoft SQL ecosystem;
Develop and optimize advanced T-SQL queries, ensuring performance, scalability, and reliability;
Design and manage ETL/ELT processes using SQL Server Integration Services (SSIS);
Develop and maintain analytical models using SSAS (Multidimensional and Tabular);
Create and maintain reports and dashboards using SSRS and Power BI, including data modelling and Row-Level Security (RLS);
Monitor and optimize BI platforms through performance tuning, index analysis, and execution plan analysis;
Implement data security, access control, and governance best practices;
Translate business requirements into robust technical BI solutions, working closely with technical and functional stakeholders;
Provide technical leadership and mentoring, contributing to best practices and knowledge sharing;
Support and ensure stability across Development, Test, and Production environments.
Requirements
Bachelor's or Master's degree in Computer Science, Engineering, Applied Mathematics, Data Science, or related fields;
Minimum of 5 years of proven experience in Business Intelligence projects;
Strong technical expertise in Microsoft SQL Server (2016–2022);
Advanced knowledge of T-SQL, including complex queries, tuning, and optimization;
Solid experience in relational and dimensional data modelling (Star Schema / Snowflake);
Hands-on experience with SSIS, SSAS (Multidimensional and Tabular), SSRS;
Strong proficiency in Power BI, including data modelling, DAX, dashboards, and security (RLS);
Experience with DAX and MDX;
Strong understanding of performance monitoring and optimization techniques;
Experience in data security, access management, and data governance;
Excellent communication skills, with the ability to interact effectively with technical and business stakeholders;
Capacity to contribute to high-complexity and mission-critical projects;
Microsoft certifications in Data, BI, or Analytics are considered a plus;
Fluency in spoken and written English;
Availability to work in a hybrid model (2 days per week on-site) in Lisbon.
What We Offer
Flexible work.
Culture of autonomy and trust.
Challenging and human projects.
Opportunities for growth and continuous learning.
Hiring Process
Our hiring process is designed to ensure the best match between talent and opportunity. Steps may vary slightly depending on the specific role.
Introductory Meeting with Mozaydo - to get to know you, your experience, and career goals.
Client Interview - a conversation with the client to explore alignment with the role and team.
Technical Assessment - evaluation of specific skills and expertise, when relevant.
Final Interview (Cultural Fit) - focused on values, mindset, and collaboration style.