T-SQL developer

act digital

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Lisboa, pt on site Until 8/23/2026 First posted February 23, 2026 Last posted February 23, 2026
Job description

Alter Solutions Portugal is an IT Consultancy Company, promoter of Digital Transformation, part of the Alter Solutions Group, created in 2006, in Paris.

In 2022, Alter Solutions joined the act digital group, constituting a global community of talent in Technology, with presence in thirteen countries: Germany, Belgium, Brazil, Canada, United States of America, Mexico, Morocco, Spain, France, Luxembourg, Poland, Portugal and Serbia. Also in 2023, we were certified as a Great Place to Work©.

In Portugal, we partner with over 120 clients and a team of over 500 people, working in projects for industries as diverse as banking, insurance, transportation, aviation, energy, and telecom.

Headquarters of the Nearshore IT center, Alter Solutions Portugal has a dedicated team of around 30 specialized professionals, integrated into projects with several internationally renowned clients.

Job Description:
We’re seeking a highly skilled T-SQL developer to join our team. As a T-SQL developer, the candidate will be responsible for designing, developing, and maintaining T-SQL code and ensuring its stability, reliability, and performance. The candidate will work with our development, business analysts, and operational teams and contribute to various projects, including database optimization, data integration, reporting, and data-driven application development.

 Main Responsibilities:

  • Design and optimize complex SQL queries for high-performance data retrieval and manipulation.
  • Optimizing database performance and ensuring data integrity.
  • Troubleshooting and resolving database-related issues.
  • Collaborating with cross-functional teams to gather requirements and implement solutions.
  • Creating and maintaining database documentation.
  • Provide estimates for work / updates of status and estimates to complete. 
  • Support user tests. 
  • Provide 3rd level support. 

Technical Skills:

  • Bachelor's degree in computer science or engineering 
  • Strong proficiency in T-SQL and database concepts        
  • Minimum 5 years’ experience with database development tool MS SQL Server and associated technologies        
  • Familiarity with performance tuning and query optimization        
  • Knowledge of data modeling and database design principles.  
  • Experience with IBM WebSphere Transformation Extender [nice to have] 
  • Proficiency in English (spoken and written) is mandatory.

Soft Skills:

  • Rigorous, autonomous, team-oriented, result-oriented and proactive.    
  • Experience with Agile methodologies and tools such as Jira.
  • At ease with financial concepts and/or interested to learn the Business & Bank organization.
  • Ability to work effectively in a fast-paced environment, both independently and as part of a team.  
  • Attention to detail and strong analytical thinking.
About this role

Summary

Design, develop, optimize, and troubleshoot T-SQL code for data projects.

Job title

T-SQL developer

Experience level

5+ years

Industry

it consultancy

Location requirements

Lisboa, pt; remote work not specified

Salary

Not specified

Management role

No

Skills & keywords

Required skills

T-SQLMS SQL Serverdatabase conceptsperformance tuningdata modeling

Preferred skills

ibm websphere transformation extenderagile methodologiesjirafinancial concepts

Specializations

database developmentsql optimizationdata integrationreporting
Locations

Structured locations inferred from the posting.

Lisbon, Portugal

On-site City