Job Description
We are seeking a Sr. Data Visualization Engineer to own the Looker semantic layer and dashboard experience on GCP BigQuery. The role centers on LookML modeling: designing views, explores and models that give the business one governed definition of every metric.
Candidates should know Looker architecture end to end, from Git-based LookML development and PDT/aggregate strategy to content governance and access control. They also need a strong eye for dashboard UI design, turning business requirements into clean, fast and intuitive analytical experiences.
Key Responsibilities
Semantic Modeling in LookML
• Design and maintain the LookML semantic layer (views, explores, models) as the single governed source of business metrics.
• Model dimensions, measures, dimension groups and derived fields with clear naming, labels, descriptions and drill paths.
• Build explores with correct join logic (relationships, fanout and symmetric aggregates) so totals stay accurate across many-to-many data.
• Use refinements, extends and a clean .lkml file structure to keep models DRY,



layered and reusable across business domains.
• Develop native and SQL-based derived tables, PDTs and aggregate tables (aggregate awareness) with sound datagroup and caching strategy.
• Apply Liquid templating, templated filters and parameters for dynamic, user-driven analysis.
• Define certified metrics and curated explores that business users can trust for self-service.

Looker Architecture and Governance
• Shape the Looker project architecture: project and model boundaries, hub-and-spoke or multi-project imports, and workplace promotion (dev → QA → prod).
• Run LookML development through Git: branching, pull requests, code review, LookML Validator, Content Validator and data tests in CI (for example Spectacles).
• Implement access control: model sets, permission sets, roles, user attributes, access_filter row-level security and required_access_grants for field-level security.
• Organize cont

📌 Sr. Data Visualization Engineer (Chennai)
🏢 Cittabase Solutions
📍 Chennai