Job Title: Senior BI Developer / Report Developer
Location: Portugal (Portuguese residency required)
Work model: Hybrid
DAY-TO-DAY DUTIES:
As a Senior BI Developer at Top Sigma , you will:
Build and maintain dashboards and data visualizations using Tableau .
Validate data, ensure data quality, and support data architecture improvements.
Work extensively with SQL databases and create complex T-SQL queries to extract and process required data.
Develop ETL processes and integrate data for reporting and analysis.
Collaborate with stakeholders to design and implement data solutions.
For advanced analytics, utilize Python scripting and AWS Big Data technologies (S3, Glue, EMR, RedShift, Athena, Kinesis).
Facilitate data cleanup and process improvements, leveraging tools like Excel .
REQUIREMENTS:
At least 5 years of experience working with Tableau (v10+), MS SQL , ETL , and Excel .
Proficient in developing analytical dashboards and improving data visualizations using Tableau Desktop, Server, and Online.
Strong knowledge of T-SQL and ability to write complex queries.
Experience in data solution design and data architecture .
Familiarity with Big Data AWS technologies (S3, Glue, EMR, RedShift, Athena, Kinesis).
Strong analytical skills, capable of data validation and data quality reporting.
Ability to work with Python scripting for automation and data transformation tasks.
BENEFITS AND PERKS:
Permanent Contract
Flexible working hours
25 days of holiday
Anniversary day off
Budget for office setup
Working hours exemption allowance
Capitalization Insurance
Training budget
Paid Learning Subscription
Health insurance
Food Allowance
ABOUT TOP SIGMA:
At Top Sigma , we specialize in providing innovative DevOps, AI, and Cloud Solutions. We aim to optimize performance, ensure security, and drive cost efficiency for our clients, enabling scalability and resilience. We guide our clients through workshops, training, and consultancy to achieve their transformation goals.
Join us and be a part of a forward-thinking team that drives data and cloud innovations!
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