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Senior Database Reliability Engineer

12 hours, 14 minutes ago
Argentina
Full-time
Senior
Database Administrator
DevOps and Infrastructure
AWS Datadog Elasticsearch Git GitLab Go Grafana Helm Kubernetes Microservices MySQL New Relic OpenTelemetry PostgreSQL Prometheus Python React React Native Terraform TypeScript
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Sezzle

Sezzle

Sezzle is a payments company revolutionizing the buy now, pay later experience with interest-free installment plans, empowering consumers and merchants alike.

Diversified Financial Services
251-1K
Founded 2016
View All Jobs 185

Description

  • Design, build, and maintain shared database platform components such as client libraries, connection packages, migration tooling, safety checks, and developer-facing abstractions.
  • Establish scalable patterns for how services connect to and interact with relational databases across production, staging, and development environments.
  • Partner with backend engineering teams to improve application database usage, including connection handling, transactions, retries, timeouts, pooling, query patterns, and migrations.
  • Build automation and internal tooling that makes database operations safer, more repeatable, and less manual.
  • Define and enforce engineering standards for database access, schema design, migrations, indexing, performance, and operational readiness.
  • Architect and improve database infrastructure across AWS RDS/Aurora MySQL, PostgreSQL, RDS Proxy, replicas, backups, failover, parameter groups, monitoring, and capacity planning.
  • Lead database reliability initiatives that reduce operational risk and improve performance at scale.
  • Review application designs and database changes early to ensure reliability, scalability, maintainability, and security are built in from the start.
  • Build guardrails for database migrations, including automated checks, rollback expectations, schema reviews, observability, and production safety controls.
  • Investigate production database issues using telemetry, metrics, logs, query plans, traces, and cloud infrastructure data, and drive root-cause fixes for systemic problems.

Requirements

  • 6+ years of professional experience in software engineering, infrastructure engineering, database engineering, SRE, or platform engineering.
  • Strong software engineering ability in Go, Python, or TypeScript.
  • Proven ability to build production-quality internal tools, libraries, frameworks, services, or platform components used by other engineers.
  • Deep hands-on experience with MySQL and/or PostgreSQL in high-availability production environments.
  • Strong understanding of application-to-database behavior, including connection pooling, transactions, isolation levels, retries, timeouts, deadlocks, locking, migrations, and query execution.
  • Experience designing or improving shared database access patterns, ORM wrappers, migration frameworks, or developer-facing database tooling.
  • Hands-on experience with AWS RDS/Aurora, including provisioning, upgrades, replicas, backups, failover, monitoring, parameter tuning, and troubleshooting.
  • Experience with database connection management technologies such as RDS Proxy, PgBouncer, ProxySQL, or application-level pooling.
  • Experience analyzing database performance using query plans, indexes, slow query logs, wait events, locks, metrics, and application traces.
  • Experience designing safe database migration processes for production systems.
  • Strong observability knowledge for database-backed applications, including metrics, logs, traces, SLOs, alerting, and incident response.
  • Experience with infrastructure-as-code and CI/CD tools such as Terraform, GitLab CI/CD, Kubernetes, or Helm.
  • Ability to influence teams through design reviews, documentation, technical standards, and hands-on implementation.
  • Ability to work independently, identify high-impact problems, propose pragmatic solutions, and drive them to completion.
  • Bachelor’s degree in Computer Science.
  • Experience building platform capabilities for a microservices environment (preferred).
  • Experience with fintech, payments, banking, e-commerce, or other high-volume transactional systems (preferred).
  • Experience with compliance-sensitive environments such as PCI DSS, SOC 2, or SOX (preferred).
  • Familiarity with observability tools such as Prometheus, Grafana, Datadog, CloudWatch, Performance Insights, OpenTelemetry, or New Relic (preferred).
  • Familiarity with AI developer tooling such as Claude Code, Gemini CLI, Codex, or Cursor (preferred).

Benefits

  • Salary range of $5,000 - $9,500 per month gross in USD.
  • Remote full-time role.
  • Opportunity to work on a high-impact fintech and payments platform.
  • Exposure to a modern stack including Golang, TypeScript, Python, AWS, Kubernetes, MySQL, PostgreSQL, and Elasticsearch.
  • Open-source-first engineering culture that favors building before buying.

Interested in this position?

Apply directly on the company website

Apply Now

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