Senior Database Engineer

1Kosmos

. Own day-to-day operations across MongoDB, Amazon DocumentDB, PostgreSQL, DynamoDB, and Amazon Redshift, including health checks, capacity, connections, and storage growth .

Posted 10/9/2026full-timeRemote • IndiaSenior💰 $120,000 - $180,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in managing and optimizing production databases, including MongoDB, Amazon DocumentDB, PostgreSQL, and Amazon Redshift. Proficient in database migrations, query tuning, and automation using Python or Bash, while ensuring compliance with data handling regulations such as SOC 2 and GDPR.

Highest-signal resume keywords

Database AdministrationMongoDB or Amazon DocumentDBPostgreSQLSQL and Amazon RedshiftAWS Database Services

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Database Version UpgradesQuery TuningSchema and Data MigrationsBackup and RestoreAutomation with Python or BashIndex DesignMonitoring and AlertingRoot-Cause AnalysisGit and CI WorkflowsHandling PII

Soft Skills

CollaborationProblem-SolvingAttention to DetailCommunication

Tools & Technologies

MongoDBAmazon DocumentDBPostgreSQLAmazon RedshiftAWS RDSAWS AuroraDynamoDBS3GitHub ActionsGlue Data Catalog

Industry Keywords

SOC 2GDPRData GovernanceDatabase PerformanceData Security

Tech Stack

Tools & technologies

Amazon RedshiftAWSBigQueryDynamoDBMongoDBPostgresPythonSQL

About the role

Key responsibilities & impact

Own day-to-day operations across MongoDB, Amazon DocumentDB, PostgreSQL, DynamoDB, and Amazon Redshift, including health checks, capacity, connections, and storage growth
Plan and execute database version upgrades, assessing driver compatibility, deprecated features, and query behavior changes against application code
Find and fix slow queries by profiling workloads and reading explain plans; design, add, or retire indexes
Run pre-deployment schema and data migrations with pre-checks, verification, and tested rollback
Manage versioned database migrations in Git through pull requests and CI with GitHub Actions
Handle customer data requests, including extracts, reports, corrections, and deletion requests, with approvals and audit trails
Maintain Redshift reporting access over Iceberg tables in S3, including external schemas, Spectrum, Glue Data Catalog, views, grants, and query performance
Own backup, point-in-time restore, and failover; rehearse and document restores
Manage database access, including users, roles, grants, secrets rotation, and access reviews for SOC 2 and ISO 27001 audits
Build and tune monitoring and alerting for query latency, replication lag, disk, connections, and cost
Respond to database incidents, lead root-cause analysis, and implement fixes
Automate repetitive DBA work with Python or Bash
Collaborate with Development, Customer Success, ML, and DevSecOps on releases, installations, and customer escalations
Participate in an on-call rotation

Requirements

What you’ll need

Bachelor’s or Master’s degree in Computer Science, Engineering, or related field (or equivalent experience)
5+ years of experience administering production databases
Hands-on production experience with MongoDB or Amazon DocumentDB, including replica sets, indexing, TTL, and upgrades
Hands-on production experience with PostgreSQL
Strong SQL and experience with Amazon Redshift or a comparable analytical query engine (Athena, Trino, Snowflake, or BigQuery)
Track record of production database upgrades, including assessing application impact before the upgrade
Index design and query tuning driven by profiler and explain plan output
Experience running schema and data migrations as part of a release process
Backup, restore, and replication in production, with recovery that has actually been tested
Strong experience with AWS database and supporting services (RDS or Aurora, DocumentDB, DynamoDB, S3, IAM, Secrets Manager, CloudWatch)
Proficiency in Python or Bash for automation
Experience with Git and CI-based change workflows
Experience handling PII and customer data under SOC 2, GDPR, or similar requirements
Habit of verifying changes and writing runbooks
Willingness to participate in an on-call rotation
Remote, based in India

Benefits

Comp & perks

Annual stipends for certifications
Conference attendance
Unlimited PTO
Fully remote work