Senior Database Reliability Engineer
Core
Design, build, and scale the database platform (libraries, tooling, guardrails) to ensure reliability, security, and scalability for Sezzle's applications.
Role type
Senior Database Reliability Engineer (hands-on IC)
Builds
Database connection packages, client libraries, migration tooling, safety checks, and developer-facing abstractions.
Domain
Fintech / Retail / Cloud Infrastructure
Deliverable
production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work
Required skills
Go, Python, TypeScript, MySQL, PostgreSQL, AWS RDS/Aurora, RDS Proxy, PgBouncer, Terraform, Kubernetes, GitLab CI/CD, observability, SLOs, SLIs, disaster recovery, database migrations, query optimization, connection pooling, transaction management, security compliance (PCI/SOC 2), AI/LLM tooling
Preferred skills
None stated
Technologies
AWS RDS, Aurora MySQL, PostgreSQL, RDS Proxy, PgBouncer, ProxySQL, Terraform, Kubernetes, Helm, GitLab CI/CD, Claude
Responsibilities
Design and maintain shared database platform components; establish scalable connection patterns; partner with backend teams on connection lifecycle and query patterns; build automation for safer operations; define engineering standards for schema and access; architect infrastructure on AWS; lead reliability initiatives; review application designs early; build migration guardrails; improve developer self-service; investigate production issues; create dashboards and runbooks; drive backup/DR improvements; work with security teams; mentor engineers.
Seniority
Senior, hands-on IC