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1Kosmos
1Kosmos
51 – 200 Employees
ConsultingHealthcareLogistics
1Kosmos develops digital identity and passwordless authentication technology through its BlockID platform. The platform supports employee onboarding, customer authentication, and citizen identity verification, combining biometric authentication with blockchain-based security to help organizations reduce fraud and protect user privacy. Its solutions are designed for regulated sectors including financial services, government, and healthcare, with alignment to frameworks such as NIST and GDPR.
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Senior Database Engineer (Remote, India)

Lead the operation and reliability of 1Kosmos’s production database environment supporting passwordless identity security. Manage migrations, performance, recovery, access controls, observability, and incident response across a diverse AWS data stack.

INIndia
$120,000 – $180,000 / year
RemoteFull-timeSeniorEnglish RequiredBackend EngineerSoftware Engineer
Amazon RedshiftAWSBigQueryDynamoDBMongoDBPostgresPythonSQL

Description

  • Manage daily operations for MongoDB, Amazon DocumentDB, PostgreSQL, DynamoDB, and Amazon Redshift, covering health checks, capacity, connections, and storage growth
  • Coordinate database version upgrades by evaluating driver compatibility, deprecated functionality, and query changes against application code
  • Diagnose and resolve slow queries through workload profiling and explain-plan analysis, including index creation, tuning, and retirement
  • Execute schema and data migrations before releases with documented checks, validation, and tested rollback procedures
  • Maintain Git-based, version-controlled database migrations through pull requests and GitHub Actions CI
  • Process approved customer data requests, including exports, reports, corrections, and deletions, while maintaining audit trails
  • Administer Redshift reporting access for Iceberg tables in S3, including external schemas, Spectrum, Glue Data Catalog, views, grants, and query optimization
  • Manage backups, point-in-time recovery, and failover, and regularly rehearse and document restoration procedures
  • Administer database users, roles, grants, secret rotation, and access reviews for SOC 2 and ISO 27001 compliance audits
  • Develop and refine monitoring and alerting for query latency, replication lag, disk usage, connections, and cost
  • Respond to database incidents, lead root-cause investigations, and deliver corrective fixes
  • Automate recurring database administration tasks with Python or Bash
  • Partner with Development, Customer Success, ML, and DevSecOps on releases, installations, and customer escalations
  • Take part in the on-call rotation

Requirements

  • Bachelor’s or master’s degree in computer science, engineering, or a related discipline, or equivalent experience
  • At least five years of experience administering production databases
  • Production experience with MongoDB or Amazon DocumentDB, including replica sets, indexing, TTL, and upgrades
  • Production experience managing PostgreSQL
  • Strong SQL skills and experience with Amazon Redshift or a comparable analytical query engine such as Athena, Trino, Snowflake, or BigQuery
  • Demonstrated experience planning production database upgrades and evaluating application impact beforehand
  • Experience designing indexes and tuning queries using profiler data and explain-plan output
  • Experience delivering schema and data migrations within a release process
  • Production experience with backup, restoration, and replication, including tested recovery procedures
  • Strong knowledge of AWS database and supporting services, including RDS or Aurora, DocumentDB, DynamoDB, S3, IAM, Secrets Manager, and CloudWatch
  • Proficiency in Python or Bash for automation
  • Experience with Git and CI-driven change management
  • Experience handling PII and customer data under SOC 2, GDPR, or comparable requirements
  • Consistent practice of validating changes and documenting runbooks
  • Availability to participate in an on-call rotation
  • Based remotely in India

Benefits

  • Annual certification stipends
  • Support for attending conferences
  • Unlimited paid time off
  • Fully remote work

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