Job Summary
You will design and optimize the database architecture supporting marketplace modules. You’ll manage PostgreSQL (including TimescaleDB for time-series data), Elasticsearch for search, Redis for caching, and build ETL pipelines for analytics and reporting dashboards.
Key Responsibilities / Duties
Database Design & Management
Design PostgreSQL schemas for 40+ tables across 6 domains
Implement partitioning strategies for large tables (transactions, listings)
Configure TimescaleDB hypertables for time-series data
Write and optimize complex SQL queries
Manage database migrations (Alembic/golang-migrate)
Search & Analytics
Design Elasticsearch indices for multi-module search
Implement faceted search with aggregations
Build real-time analytics pipelines using Kafka + ClickHouse
Create reporting tables for dashboards (Entity Admin, Finance Manager)
Performance
Implement query optimization and indexing strategies
Configure read replicas for analytics workloads
Set up connection pooling (PgBouncer)
Monitor database performance (slow query logs, pg_stat_statements)
Data Governance
Implement data retention policies
Manage backup and recovery procedures
Ensure GDPR/CCPA compliance for data deletion
Implement data anonymization for M7 (Enterprise Data)
Required Skills & Qualifications
Must-Have (4+ years overall)
SkillProficiencyNotes
PostgreSQL4+ yearsPerformance tuning, partitioning, replication
SQL4+ yearsComplex joins, window functions, CTEs
Elasticsearch2+ yearsIndex design, aggregations, query DSL
Redis2+ yearsCaching, rate limiting
Python2+ yearsETL scripts
Database Migrations2+ yearsAlembic or golang-migrate
Preferred / Good-to-Have Skills
SkillWhy It Matters
TimescaleDBTime-series (price history, utilization metrics)
ClickHouseReal-time analytics
KafkaEvent streaming
Airflow / dbtETL orchestration
Metabase / SupersetDashboarding
pgvectorVector search for AI features
Key Tables / Data Models
Transactions: tables – transactions, escrow_holds | Row growth estimate – 10M/year
Listings: tables – listings, listing_versions | Row growth estimate – 5M/year
Price History: tables – price_history (TimescaleDB) | Row growth estimate – 100M/year
AI Conversations: tables – ai_conversations | Row growth estimate – 50M/year
Interview Process
Round 1 – PostgreSQL + SQL optimization: 60 minutes
Round 2 – Elasticsearch + Search design: 60 minutes
Round 3 – Data pipelines + ETL: 45 minutes
Round 4 – Hiring Manager: 45 minutes