PostgreSQL Database Administrator

PostgreSQL Developer – Chennai

Experience: 2–5 Years

Location: Chennai

Employment Type: Contract

Contract Duration: 6+ Months

Immediate Joiners Only

Payroll: Candidate's existing payroll will continue (Payroll stays with you).

Job Description

We are looking for an experienced PostgreSQL Developer with strong hands-on experience in SQL development, database optimization, and troubleshooting.

Roles & Responsibilities

• Write and optimize efficient SQL queries, views, stored procedures, and custom functions.
• Develop and implement indexing strategies for better database performance.
• Analyze SQL execution plans and optimize query performance.
• Work with database triggers and troubleshoot database-related issues.
• Identify and resolve blocking sessions, deadlocks, slow queries, and database locking issues.
• Handle high-concurrency database environments and ensure optimal performance.

Required Skills

• PostgreSQL
• Advanced SQL
• Stored Procedures & Functions
• Views & Triggers
• Indexing & Query Optimization
• Execution Plan Analysis
• Deadlock & Lock Management
• Performance Tuning

Interested candidates can share their updated resumes.

Job Description (JD) for the MySQL Database Administrator role

Experience: 4-8 Years 

Location : Mumbai 

Job Title: MySQL Database Administrator 

Responsibilities 

• Provision and configure MySQL database instances in clustered and non-clustered environments. 
• Ensure database performance, security, availability, and reliability. 
• Prepare and maintain database documentation, technical specifications, and operational procedures. 
• Perform database upgrades, backups, restoration, recovery, and migrations. 
• Monitor database and server resource utilization and perform performance tuning and optimization. 
• Manage database users, access privileges, periodic access reviews, audits, and documentation. 
• Configure, monitor, and troubleshoot MySQL replication. 
• Collaborate with application, infrastructure, development, and other stakeholder teams to resolve database-related issues. 
• Provide database and application deployment support, as required. 
• Perform database backup and restoration validation, data integrity checks, and post-migration validations. 
• Follow database change management, security, and operational best practices. 

Skills and Qualifications 

• Strong hands-on experience in MySQL database administration. 
• Good working knowledge of recent MySQL versions, preferably MySQL 8.x. 
• Understanding of MySQL storage engines, including InnoDB and MyISAM. 
• Practical experience in configuring, monitoring, and troubleshooting MySQL replication. 
• Knowledge of MySQL administration best practices, security, and high availability. 
• Proficiency in writing, analyzing, and optimising SQL queries. 
• Experience with MySQL features such as the Event Scheduler, audit logging, and performance monitoring. 
• Ability to assess database resource requirements based on application workloads and technical specifications. 
• Familiarity with other SQL and NoSQL databases, such as PostgreSQL and MongoDB. 
• Understanding of MySQL limitations compared with other relational database platforms and the ability to identify suitable workarounds. 
• Working knowledge of version control tools such as Git, SVN, or CVS. 
• Graduate degree in a relevant discipline and good verbal and written communication skills. 

Good to Have 

• Basic Linux administration, command-line troubleshooting, and Bash scripting skills. 
• Familiarity with application server frameworks such as JBoss, GlassFish, and WildFly. 

Postgress Developer

Experience: 2 to 5 Years

Location: Chennai

Type: Contract

Duration : 6+ Months

Immediate joiners only

Roles & Responsibilities:

Hands-on experience writing efficient SQL queries, views, stored procedures, custom functions, indexing strategies.

Analyse execution plans, and triggers.

Ability to Identify and resolve blocking sessions, deadlock issues, slow queries, and database locks in high-concurrency environments.

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.