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Senior Database Developer (Oracle to PostgreSQL)
Senior Database Developer (Oracle to PostgreSQL)
Mactores Cognition Private Limited's logo

Senior Database Developer (Oracle to PostgreSQL)

Dorothy Seal's profile picture
Posted by Dorothy Seal
4 - 8 yrs
₹15L - ₹30L / yr
Remote only
Skills
Database migration

Mactores is the agent-native AWS modernization firm. Most modernization work doesn't ship, it stalls in pilots, slips a year, or lands at three times the budget. We exist to ship it: production systems running, legacy retired, outcomes measured. Our delivery is built on Aedeon, the agent platform built by Mactores' founders' sister company, which absorbs the repetitive 60–70% of engagement work, discovery, dependency mapping, validation, test generation, that traditional consulting bills human hours against. Forward-deployed engineers own the rest: architecture, judgment, and cutover, on dates we commit to in the contract.


We are seeking an experienced Senior Database Developer to lead and support Oracle to PostgreSQL/Aurora PostgreSQL migration initiatives. The role involves deep hands-on work across SQL refactoring, schema conversion, DMS operations, performance tuning, and post–go-live stabilization. The candidate will work closely with application teams, cloud engineers, and stakeholders to ensure a smooth, performant, and compliant migration.

 

What you will do?

  • Refactor and convert Oracle SQL, PL/SQL, and database objects to PostgreSQL-compatible SQL/PLpgSQL.
  • Analyze and remediate AWS SCT (Schema Conversion Tool) findings and limitations.
  • Manage and maintain Flyway migration codebase (versioned scripts, repeatable migrations, rollbacks).
  • Identify, troubleshoot, and fix database-related application bugs.
  • Perform query optimization for PostgreSQL (execution plans, indexing strategies, query rewrites).
  • Support and monitor AWS DMS during full load and CDC phases.
  • Diagnose and resolve DMS data and performance issues.
  • Perform data validation and reconciliation between Oracle and PostgreSQL.
  • Collaborate with application teams to align SQL behavior and performance expectations.

What are we looking for?

  • Bachelor's degree in Computer Science or a related field.
  • 5+ years of experience as an Oracle/PostgreSQL DBA and database developer.
  • Strong experience with Oracle Database and PostgreSQL / Aurora PostgreSQL.
  • Hands-on expertise in Oracle to PostgreSQL migration.
  • Advanced SQL and query performance tuning skills.
  • Experience with AWS SCT and AWS DMS.
  • Knowledge of Flyway/Liquibase or similar schema migration tools.
  • PostgreSQL internals: indexing, statistics, execution plans.
  • AWS services: RDS/Aurora, CloudWatch, IAM (preferred).

You will be preferred if:

  • Familiarity with automation and configuration management tools, such as Ansible, Chef, or Puppet.
  • Familiarity with IAAC tools such as Terraform, CloudFormation.
  • Familiarity with CI/CD implementation tools like Liquibase/Flyway.
  • AWS Certified Database – Specialty.
  • AWS Certified Solutions Architect.


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About Mactores Cognition Private Limited

Founded :
2008
Type :
Services
Size :
20-100
Stage :
Profitable

About

Mactores is a global technology consulting and product company with focus on delivering solutions on Cloud, Big Data, Deep Analytics, DevOps, IoT & AI

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