Senior Database Reliability Engineer: Scale Automate Secure

Sezzle; Tandil; On-site; ARS 86,234,000 - 163,844,000; Full time

Job summary

Sezzle is seeking a Senior Database Reliability Engineer to design, build, and scale the database platform used across Sezzle’s applications. You will own end-to-end database reliability, migrate and operate databases, and define patterns to improve reliability by design across teams and cloud environments.

You will collaborate with infrastructure, security, and engineering leadership to ship production‑quality tooling, guardrails, and self‑service capabilities, enabling safe migrations,

Qualifications

• 6+ years of professional software engineering, infrastructure engineering, database engineering, SRE, or platform engineering.

Responsibilities

• Design, build, and maintain shared database platform components used by Sezzle applications.
• Establish reliable, scalable patterns for how Sezzle services connect to relational databases.
• Partner with backend engineering teams to improve database usage in application code.
• Build automation and internal tooling that makes database operations safer and more repeatable.
• Define and enforce engineering standards for database access, schema design, migrations, and performance.
• Architect and improve database infrastructure across AWS RDS/Aurora MySQL, PostgreSQL, and related services.
• Lead database reliability initiatives to reduce operational risk and improve performance.
• Review designs and migrations early to ensure reliability and security by design.

Skills

Go

Python

TypeScript

Relational databases

MySQL

PostgreSQL

AWS

Kubernetes

Terraform

CI/CD

Education

Bachelor's degree in Computer Science

Tools

RDS Proxy

PgBouncer

ProxySQL

Terraform

Job description

Sezzle is seeking a Senior Database Reliability Engineer to design, build, and scale the database platform used across Sezzle’s applications. You will own end-to-end database reliability, migrate and operate databases, and define patterns to improve reliability by design across teams and cloud environments.

You will collaborate with infrastructure, security, and engineering leadership to ship production‑quality tooling, guardrails, and self‑service capabilities, enabling safe migrations,