Database Administrator (PostgreSQL)

Database Engineer (PostgreSQL) | 5+ Years | Bangalore

We are looking for a Database Engineer (PostgreSQL) with 5+ years of experience to manage, optimize, and maintain PostgreSQL databases. The ideal candidate will have expertise in PostgreSQL, SQL Optimization, Database Design, Performance Tuning, Data Migration, and Backup & Recovery.

Responsibilities:

• Design, develop, and maintain PostgreSQL databases.
• Optimize SQL queries and improve database performance.
• Perform database design, indexing, and schema management.
• Execute data migration, backup, recovery, and disaster recovery activities.
• Monitor database health and troubleshoot performance issues.
• Collaborate with development teams to ensure scalable database solutions.

Requirements:

• 5-9 years of PostgreSQL database experience.
• Strong SQL and performance tuning skills.
• Knowledge of database backup, recovery, and migration processes.

We are looking for a Database Developer (PostgreSQL) .

Requirements

- 5+ years of hands-on PostgreSQL experience in a production or production-adjacent context 

- Strong SQL skills, including joins, aggregation, common table expressions, window functions, upserts, and DDL

- Ability to read execution plans and use a systematic approach to diagnose and rewrite slow SQL statements

- Practical understanding of transactions, isolation levels, locking, and MVCC

- Experience with physical database design, including tables, keys, constraints, indexes, and partitioning

- Practical experience with data migrations, including bulk or incremental loads, cutovers, and validation

- Practical backup and restore experience, including retention, point-in-time recovery, or restore testing

- Ability to write reliable operational scripts and idempotent reconciliation or backfill processes

- Basic Python experience for data loading and operational scripting.

Nice to have

- Experience with a schema migration tool such as Alembic, Flyway, or Liquibase 

- Experience managing declarative partitioning at scale

- Experience with managed cloud PostgreSQL

- Experience tuning PostgreSQL statistics, autovacuum, bloat, and lock contention

Senior Database Administrator (DBA)

Database Reliability & Performance  •  Senior Individual Contributor

• Experience: 6–9 years in production database administration / engineering
• Level: Senior Individual Contributor (hands-on)
• Function: Data Platform — reliability, performance, and governance across relational and distributed SQL & NoSQL DBs.

About the Role

We are hiring a Senior Database Administrator to own the health, performance, and reliability of the data layer behind a high-scale, multi-tenant platform. Our environment spans several independent PostgreSQL database instances, a cache-first read tier, change-data-capture pipeline, analytics and archival stores. Should be capable of implementing NoSQL stores (Cassandra / ScyllaDB) & MySQL  end to end as we scale.

This is a hands-on senior IC role for someone who has run demanding production databases and wants full ownership: partitioning and maintenance, performance tuning, monitoring, uptime, disaster recovery, and the security and data-governance documentation that keeps a regulated, multi-tenant platform audit-ready. You will work closely with, and take direction from, engineering leadership — translating priorities into a well-run, well-documented data platform.

What You'll Own

PostgreSQL Depth

• Administer multiple production PostgreSQL instances (v16+), including schema/DDL review, migrations, and release coordination.
• Design and maintain table partitioning strategies (range/hash/time-based) and automate partition lifecycle — creation, retention windows, and safe drops.
• Own query and instance performance tuning: EXPLAIN/ANALYZE, indexing strategy, autovacuum/bloat management, connection pooling (e.g. PgBouncer), and parameter-group tuning.
• Execute zero-downtime schema changes using expand–migrate–contract / blue-green patterns; assess lock impact and avoid long ACCESS EXCLUSIVE locks on hot tables.
• Manage replica topology (writer/reader endpoints), replication lag, and read-scaling as load grows.
• Partner with app teams on migration tooling (e.g. Flyway) and paired forward/rollback scripts; enforce idempotent, reviewed, tested DDL.

NoSQL & Scale

• Data-model, deploy, and operate distributed NoSQL clusters — Cassandra and/or ScyllaDB — including partition/clustering key design, compaction strategy, repair, and node operations (bootstrap, decommission, scale-out).
• Lead the planned migration of high-volume payload tables from partitioned PostgreSQL to Cassandra/ScyllaDB: capacity planning, dual-write/backfill design, cutover, and validation.
• Tune distributed-store read/write paths, consistency levels, and cluster sizing for predictable latency at scale.
• Support the cache-first architecture (Redis) and change-data-capture / streaming pipelines (e.g. Kafka) that move data to analytics and cold-archival stores.

Operations, Reliability & DR

• Own database uptime and SLOs; build and maintain monitoring, alerting, and dashboards for the key signals (latency, replication lag, CPU/IO, connections, vacuum lag, error rates).
• Define and regularly test backup and disaster-recovery strategy — RPO/RTO targets, point-in-time recovery, restore drills, and cross-AZ / future multi-region readiness.
• Drive incident response for database-related issues: triage, mitigation, root-cause analysis, and follow-up actions.
• Write and maintain runbooks (partition maintenance, failover, archival, DR, migration procedures) and participate in an on-call rotation for the data layer.
• Establish production-change discipline: pre-flight and post-deploy verification, rollback criteria, and backup verification before destructive operations.

Security, Governance & Documentation

• Implement and maintain database access control — least-privilege roles, schema-scoped permissions, and row-level security (RLS) for multi-tenant isolation.
• Own data-governance documentation: PII maps, per-table retention policies, audit-readiness, and the controls behind privacy-regulation compliance (e.g. GDPR / DPDP-style erasure and legal-hold workflows).
• Author and maintain architecture decision records (ADRs), schema documentation, and monitoring/runbook docs so the data platform is legible to the wider team.
• Uphold encryption-at-rest/in-transit posture and safe handling of sensitive columns; keep the data layer aligned with the platform's compliance requirements.

Coding & Automation Bar (Required)

This role is automation-first, not click-ops. The right candidate treats repetitive database work as something to script away and can drop into application code when a problem demands it.

• Strong scripting in Python and Bash for automation of maintenance, backups, partition management, backfills, and health checks.
• Comfortable with infrastructure-as-code (e.g. Terraform) and configuration management (e.g. Ansible) for reproducible database infrastructure.
• Solid SQL and PL/pgSQL; able to read and debug application-layer database code and, worst case, write or patch application code (e.g. Python/Node/Java) to unblock a fix.
• Fluent with Git-based workflows, code review, and CI for database migrations and tooling.

Required Qualifications

• 6–9 years operating relational databases in demanding production environments, with deep PostgreSQL expertise (internals, partitioning, replication, performance tuning).
• Hands-on experience running at least one distributed NoSQL store in production — Cassandra or ScyllaDB strongly preferred (other wide-column/distributed stores considered).
• Proven ownership of backup/DR, monitoring, and incident response for production databases.
• Strong scripting/automation background (Python, Bash) and experience with IaC.
• Experience with managed cloud databases (AWS RDS or equivalent) and understanding of instance/parameter-group tuning, replicas, and failover.
• Experience designing for multi-tenancy and data isolation at scale.
• Clear written communication — able to produce runbooks, ADRs, and governance docs a team can rely on.

Nice to Have

• Experience migrating workloads from PostgreSQL to Cassandra/ScyllaDB (or similar relational-to-distributed migrations).
• Familiarity with Redis as a cache tier and with CDC / streaming pipelines (e.g. Kafka, Debezium).
• Exposure to Flyway (or Liquibase), pgTAP or similar schema testing, and PgBouncer.
• Working knowledge of privacy regulations (GDPR, India DPDP) and audit/compliance processes.

How You Work

• Ownership mindset — takes a directive and runs it to done, with sound judgment on trade-offs.
• Reliability-first and detail-oriented; disciplined about verification, rollback, and documentation.
• Collaborative in a high-performing engineering team; communicates clearly with developers and leadership.
• Pragmatic and scale-aware — designs for where the platform is going, not just where it is.

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. 

Role overview:

·         Technology Expertise & DBA Skill Set

·         Cloud Platforms: AWS, Azure

·         Database IaaS: Oracle, Microsoft SQL Server, PostgreSQL

·         Database PaaS: CosmosDB, MySQL, SQL Managed Instance, RDS Aurora, MongoDB

·         Infrastructure as Code: Terraform, Ansible

·         CI/CD & Automation: GitHub Actions, GitLab, Azure DevOps

·         Programming & Scripting: Python, Bash/Shell, PowerShell

·         Operating Systems: Linux/Unix (RHEL, Ubuntu), Window

Database Team Overview

Our Database Team is the foundation of enterprise-grade databases delivering secure, compliant and high-performing database platforms across Azure and AWS. We provide managed services for Oracle and Microsoft SQL Server, operating in a system DBA role to ensure platform reliability, resilience, and operational excellence. In addition, we support PaaS and RDS database services by acting as the platform team defining policies, enforcing security standards, and managing networking configurations while enabling self-service capabilities for application teams to consume these services efficiently.

What would you do here:

·         Database Security & Compliance: Implement robust security controls, encryption, and auditing to safeguard sensitive data and meet regulatory requirements.

·         Lifecycle Management: Oversee patching, upgrades, and end-of-life transitions to maintain platform stability and minimize risk.

·   Performance Optimization: Monitor and tune databases for optimal performance across diverse workloads.

·         Automation & Operational Excellence: Design and deploy automation for provisioning, monitoring, and maintenance to achieve “brilliant basics” and reduce manual intervention.

·         Business-Critical Certification: Validate and certify database environments to support mission-critical applications with high availability and disaster recovery strategies.

·         Incident & Problem Management: Provide rapid response and  root-cause analysis for database-related incidents to ensure business continuity.

·         Capacity Planning & Scalability: Forecast growth and optimize resources to support evolving business needs.

Best Regards!

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.

Data Platform Engineer

Design, automate, and scale our data platform — this is an engineering role, not a traditional "DBA job.

Must-have :

• Data modeling & schema design (from first principles, not just maintenance)
• PostgreSQL (deep, hands-on — partitioning, replication, tuning)
• Any distributed NoSQL store (Cassandra, ScyllaDB, or similar wide-column/distributed DB) (real production experience)
• Python (automation & tooling, not just scripting)
• DevOps & CI/CD (building pipelines, not just using them)
• Terraform (infrastructure-as-code)

You'll:

• Design schemas, partitioning strategies, and lead the Postgres → Cassandra migration end-to-end
• Own PostgreSQL performance, replication, and zero-downtime schema changes
• Build Python-based automation to eliminate repetitive DB work
• Own CI/CD pipelines and Terraform-based infra provisioning
• Drive uptime, DR, monitoring, and incident response
• Own multi-tenant security (RLS, least-privilege access) and data governance

Experience: 4–9 years, data/database/platform engineering in demanding production environments.

Bonus: Kafka/Debezium (CDC), Redis, Flyway/Liquibase, GDPR/DPDP exposure.

Job Title: Senior Data Engineer

Position Summary

We are seeking a highly skilled Data Engineer with strong expertise in reporting infrastructure, data modeling, and analytics platforms. This role will focus on building scalable reporting solutions, optimizing data pipelines, and enabling data-driven decision-making across the organization. The ideal candidate will have deep experience with databases, data warehousing, and complex query development. While Ruby on Rails experience is beneficial, the primary emphasis is on data engineering and reporting systems.

Key Responsibilities

• Design, develop, and maintain reporting infrastructure and data platforms.
• Build and optimize complex SQL queries, data models, and reporting datasets.
• Develop scalable ETL/ELT pipelines and data integration processes.
• Design and maintain database schemas to support analytics and reporting requirements.
• Collaborate with business stakeholders to understand reporting needs and translate them into technical solutions.
• Implement data quality, governance, and performance best practices.
• Support and enhance enterprise reporting solutions and dashboards.
• Work with large-scale datasets in cloud data warehouse environments.
• Troubleshoot reporting issues and optimize database performance.
• Partner with engineering and product teams to establish sustainable data architecture.

Must Have: Technical Skills

• PostgreSQL
• Snowflake
• Advanced SQL
• Data Modeling
• Data Warehousing
• Reporting & Analytics Infrastructure
• ETL/ELT Development
• Query Performance Tuning

Success Profile:

The ideal candidate is a data-focused engineer who enjoys working with complex datasets, designing scalable reporting solutions, and building foundational infrastructure that empowers analytics and business intelligence teams. They should be comfortable navigating databases, optimizing queries, and translating business reporting needs into robust technical implementations.

Experience Range: 5-10 years

Role Type: Individual Contributor / Senior Engineer

Primary Focus: Reporting Infrastructure, Data Engineering, Data Warehousing, and Analytics Enablement.

Job Description – Senior Database Architect (Couchbase)

Experience: 12+ Years

Location: Bangalore

Notice Period: Immediate Joiners Only

Employment Type: Full-Time

Job Summary

We are looking for a highly experienced Senior Database Architect with strong expertise in Couchbase and NoSQL database technologies. The ideal candidate will be responsible for designing enterprise-grade database architectures, driving database performance optimization, ensuring high availability, and providing technical leadership for large-scale, distributed database systems.

Key Responsibilities

• Design and implement scalable, highly available, and secure Couchbase database architectures for enterprise applications.
• Define database architecture strategies, data modeling standards, and best practices.
• Lead Couchbase cluster design, deployment, configuration, replication, and capacity planning.
• Optimize SQL++ (N1QL) queries, indexing strategies, data access patterns, and overall database performance.
• Architect disaster recovery, backup, restore, failover, and business continuity solutions.
• Troubleshoot complex database performance issues and conduct root-cause analysis.
• Lead database migration, modernization, and integration initiatives.
• Establish database security policies, access controls, encryption, and compliance standards.
• Collaborate with application architects, development teams, DevOps, and infrastructure teams to align database architecture with business requirements.
• Evaluate database technologies and recommend solutions based on scalability, performance, availability, and cost.
• Provide technical leadership, mentor database engineers, and conduct architecture and design reviews.
• Develop database monitoring, alerting, automation, and operational excellence strategies.

Required Skills and Qualifications

• 12+ years of experience in database architecture, database engineering, or database administration, with strong hands-on expertise in Couchbase.
• Extensive experience in Couchbase Server architecture, cluster management, replication, and distributed data systems.
• Strong expertise in SQL++/N1QL, indexing, query profiling, and performance tuning.
• In-depth knowledge of NoSQL data modeling, document design, partitioning, and scalability principles.
• Experience designing high-availability, disaster recovery, backup, and recovery solutions.
• Proven experience handling large-scale databases and mission-critical enterprise applications.
• Strong understanding of database security, access management, and performance monitoring.
• Experience with Linux, scripting, and database automation.
• Excellent troubleshooting, analytical, communication, and stakeholder management skills.

Good to Have

• Experience with AWS, Microsoft Azure, or Google Cloud Platform.
• Knowledge of Kubernetes, Docker, and containerized deployments.
• Experience with infrastructure as code, CI/CD pipelines, and automation tools.
• Exposure to database migration, cloud-native architectures, and microservices.
• Experience defining database governance, architecture standards, and technology roadmaps.

Candidate Profile

• Total Experience: 12+ Years
• Core Technology: Couchbase
• Primary Focus: Database Architecture, NoSQL, Performance Optimization, High Availability, and Scalability
• Location: Bangalore
• Joining Requirement: Immediate Joiners Only
• Interview Process: Technical Discussion and Management Round

TECHJAYS

Position: Senior Database Engineer / DBA

Experience: 7+ Years

Location: Coimbatore / Hybrid (Remote option available)

Employment Type: Contract

Joining: Immediate or within 30 days preferred

Core Focus: Microsoft SQL Server Administration, Always On Availability Groups, Performance Tuning, Database Security, Disaster Recovery, Production Database Operations, High Availability, and Multi-Terabyte Database Management.

Tools & Platforms: Microsoft SQL Server (HA / Clustered), Always On Availability Groups (AGs), TDE & Auditing, T-SQL, Partitioning & Archiving, PowerShell, Snowflake / Redshift / AWS Aurora (Nice to Have).

About the Role

We are looking for a Senior Database Engineer / DBA to own a large, multi-terabyte Microsoft SQL Server environment running in a highly available, clustered configuration.This is a hands-on production database role supporting a live, customer-facing SaaS platform. The role focuses on maintaining database availability, performance, security, and reliability. This is not an analytics or reporting role.

The ideal candidate will have strong hands-on experience managing SQL Server databases in a 24x7 production environment, troubleshooting complex database issues, maintaining Always On Availability Groups, and ensuring business continuity through effective disaster recovery practices.

Key Responsibilities

1. Production Database Administration & High Availability

Own and maintain the production SQL Server environment in an Always On Availability Group configuration.Handle failover operations, synchronization delay troubleshooting, and read replica load management.Maintain database availability and ensure the stability of production database environments.Manage SQL Server alerts and provide on-call coverage for production database operations.

2. Performance Tuning & Incident Management

Lead incident response and root cause analysis for production database issues.Troubleshoot query plan regressions, TempDB contention, deadlocks, and blocking issues.Perform index and statistics maintenance to ensure optimal database performance.Review developers' T-SQL queries and schema changes before deployment. Advise developers on table design, indexing strategies, and database performance optimization.

3. Database Security & Compliance

Maintain database security through Transparent Data Encryption (TDE), auditing, and certificate and key rotation.Monitor anomalous database access patterns and ensure appropriate security controls.

Handle confidential or legally sensitive data requests following established processes.Maintain database security standards and support compliance requirements.

4. Database Maintenance & Capacity Planning

Perform quarterly cumulative update patching across database environments.Manage partitioning and archiving on multi-terabyte databases without impacting production performance.

Own capacity planning for storage, CPU, and memory.Manage recurring environment refreshes across staging, development, and QA environments.Ensure production maintenance activities are performed safely with minimal downtime.

5. Disaster Recovery & Database Migrations

Design, implement, and test disaster recovery strategies for SQL Server environments.Support customer instance migrations between regions, including database preparation and validation.

Perform regular DR testing and ensure database recovery readiness. Manage large-scale database migrations while maintaining availability and data integrity.

6. Production Operations & Support

Provide on-call, weekend maintenance, and after-hours support as required.Maintain clear documentation of database changes, incidents, and recovery procedures.Work closely with engineering teams to ensure reliable database operations.Ensure production database changes follow established change control and operational procedures.

Must-Have Requirements

• 7+ years of hands-on Microsoft SQL Server DBA experience in a 24x7 production environment. SQL development experience alone is not sufficient.
• 3+ years of direct experience with Always On Availability Groups, including failover handling and synchronization delay troubleshooting.
• Experience managing multi-terabyte production databases, including partitioning, archiving, and index and statistics maintenance without blocking production.
• Experience leading incident response and root cause analysis for production database issues.
• Strong experience with database security practices, including TDE, auditing, certificate rotation, and key management.
• Hands-on experience with SQL Server performance tuning, query optimization, and production troubleshooting.
• Experience designing and testing disaster recovery strategies.
• English fluency sufficient for real-time incident communication, with meaningful business-hours overlap with Pacific time.
• Nice-to-Have Skills
• Experience supporting a SaaS CRM or similarly high-transaction-volume application.
• Exposure to Snowflake, Redshift, or AWS Aurora alongside transactional SQL Server work.
• Experience with customer instance migrations or similar large-scale data movement projects.
• Experience in SOC 2, HIPAA, or PCI-regulated environments.
• Comfort handling legally sensitive or confidential data requests as part of a defined process.

What We're Looking For

Strong Ownership: Takes responsibility for maintaining large, multi-terabyte production databases and ensuring their availability and reliability.

Technical Expertise: Demonstrates deep hands-on knowledge of SQL Server administration, Always On Availability Groups, performance tuning, and disaster recovery.

Incident Management: Maintains a calm, structured approach during production incidents and takes ownership of root cause analysis and preventive actions.

Attention to Detail: Follows disciplined change control, documentation, database security, and maintenance practices.

Clear Communication: Communicates effectively with developers, engineering teams, and stakeholders during live production incidents.

Operational Excellence: Understands the importance of maintaining production databases with minimal downtime and without impacting customer-facing applications.

Execution-Focused Mindset: Comfortable managing day-to-day database administration, on-call support, and hands-on production operations.

What We Offer

• Flexible work environment with Coimbatore office, hybrid, and remote options.
• Paid holidays and flexible time off.
• Medical insurance coverage of up to ₹4 lakh per person for self and family.
• Opportunities to support production infrastructure for global clients.
• A culture that values clarity, integrity, accountability, and continuous growth.