About the Company
Sezzle is a fintech company that provides interest-free installment plans, revolutionizing the shopping experience. We are building an innovative team to shape the future of fintech and retail.
Responsibilities
- Design, build, and maintain shared database platform components used by Sezzle applications, such as database connection packages, database client libraries, migration tooling, safety checks, query standards, and developer-facing abstractions.
- Establish reliable, scalable patterns for how Sezzle services connect to and interact with relational databases across production, staging, and development environments.
- Partner with backend engineering teams to improve database usage in application code, including connection lifecycle, transaction handling, retries, timeouts, pooling, query patterns, and migration workflows.
- Build automation and internal tooling that makes database operations safer, more repeatable, and less dependent on manual intervention.
- Define and enforce engineering standards for database access, schema design, migrations, indexing, query performance, connection management, and operational readiness.
- Architect and improve database infrastructure across AWS RDS/Aurora MySQL, PostgreSQL, RDS Proxy, read replicas, backups, failover, parameter groups, monitoring, and capacity planning.
- Lead database reliability initiatives that reduce operational risk, improve performance, and help Sezzle scale safely.
- Review application designs and database changes early in the development lifecycle to ensure reliability, scalability, maintainability, and security are built in from the start.
- Build guardrails for database migrations, including automated checks, rollback expectations, schema review workflows, migration observability, and production safety controls.
- Improve developer self-service for database provisioning, access, schema management, local development, testing, and observability.
- Investigate production database issues by combining application telemetry, database metrics, logs, query plans, traces, and cloud infrastructure data.
- Identify and fix systemic database problems, not just symptoms — including bad access patterns, unsafe migrations, inefficient queries, connection storms, lock contention, replication lag, and capacity bottlenecks.
- Create and maintain high-signal dashboards, alerts, SLOs, SLIs, runbooks, and operational readiness checks for database-backed services.
- Drive improvements in database backup validation, restore testing, disaster recovery, failover readiness, and business continuity.
- Work with security and compliance teams to improve database access controls, auditability, encryption, secrets management, least privilege, and PCI/SOC 2 aligned controls.
- Mentor engineers on database design, query performance, safe migrations, operational readiness, and production debugging.
- Use automation and AI tooling where appropriate to improve migration review, query analysis, incident investigation, documentation, and developer productivity.
Requirements
- 6+ years of professional software engineering, infrastructure engineering, or related experience.
- Deep knowledge of relational databases (MySQL, PostgreSQL) and cloud database services (AWS RDS, Aurora).
- Experience with database migration tools and version control.
- Proficiency in at least one programming language (Go, Python, etc.) for building automation and tooling.
- Experience with infrastructure as code (Terraform, CloudFormation) and CI/CD pipelines.
- Strong understanding of database performance tuning, query optimization, and indexing strategies.
- Experience with observability tools (Prometheus, Grafana, Datadog) for monitoring database health.
- Excellent problem-solving skills and ability to work independently.
Conditions
- Salary range: $5,000 - $9,500 per month (Gross in USD)
- Remote position based in Argentina