Senior Principal Consultant – Teradata Performance DBA!

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Inviting applications for the role of Senior Principal Consultant – Teradata Performance DBA!

Inviting applications for the role of Sr. Teradata expert with performance optimization experience!

In this role, the Sr. Trerdata expert is responsible for solving real world cutting edgeproblem and mentor a team of one or more junior developer to address the goal.

Responsibilities

• Strong expertise in writing and optimizing Teradata SQL queries, TPT script etc.

  
  

• Manage Production/Development databases performance.

  
  

• Review Teradata system reports and provide “performance assessment” report with recommendations to optimize system.

  
  

• Investigate and quantify opportunities from “performance assessment” reports and

  
  

• Apply best practices in each of the areas.

  
  

• Monitor using Viewpoint tool for Teradata system performance using different portlets.

  
  

• Review poor performing queries generated from BI/ETL tools and provide best practice recommendations on how to simplify and restructure views, apply PPI or other index changes

  
  

• Closely monitor the performance of various work groups on the system and make sure data is available to business as per the SLA requirement.

  
  

• Optimal index analysis - Review Index usage on tables and recommend adding dropping indexes for optimal data access.

  
  

• Review uncompressed tables, analyse its usage, and implement compression to save space and reduce IO activity – using various algorithms like MVC/ BLC/ ALC.

  
  

• Optimize locking statements in views, macros & queries to eliminate blocking contention invest.

  
  

• Review the Spool Limits for the users and recommend optimal limit for the Ad-hoc users to avoid run away queries over consuming system resources.

  
  

• Check for Mismatch data types in the system and make them unique to avoid costly translations during query processing.

  
  

• Review Set tables and check for the options to convert to MultiSet to avoid costly duplicate row checking operation.

  
  

• Review Large Scan Tables on the system and analyze for using PPI, MLPPI, Compression, Secondary indexes & Join Indexes

  
  

• Analyze various applications and understand the space requirements and segregate the disk space under the categories of perm, spool, and temp space.

  
  

• Setting up the database hierarchy that includes database creation and management of objects such as users, Roles, Profiles, tables, views.

  
  

• Maintain profiles, roles, access rights and permissions for Teradata user groups and objects.

  
  

• Generate periodic performance reports using PDCR and identify bottlenecks with the system performance.

  
  

• Establish PDCR canary performance baselines. Utilize standard canary queries to identify variance from baseline.

  
  

• Effective usage of TASM & Priority distribution to penalize the resource intensive queries, Give high priority to business-critical workloads, Throttling of different workloads for optimal throughput and provide performance reports to check workload management health.

  
  

Qualifications we seek in you!

Minimum qualifications

• Teradata Performance DBA experience.

  
  

• Experience in review of poor performing queries and provide best practice recommendations on how to simplify and restructure views, apply PPI or other index changes.

  
  

• Statistics Management and Optimization

  
  

• Exposure to DWH Env (Knowledge of ETL/DI/BI Reporting).