Sezzle

Senior Database Reliability Engineer

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5 days ago
Remote, ArgentinaSenior

Responsibilities

  • Design, build, and maintain shared database platform components, client libraries, migration tooling, safety checks, query standards, and developer-facing abstractions.
  • Establish reliable and scalable database connection, transaction, migration, schema, indexing, and query patterns across application environments.
  • Build automation, internal tooling, developer self-service capabilities, and migration guardrails that reduce manual intervention and operational risk.
  • Architect and improve AWS RDS/Aurora database infrastructure, including replicas, backups, failover, parameter groups, monitoring, and capacity planning.
  • Investigate production issues using application telemetry, database metrics, logs, query plans, traces, and cloud infrastructure data.
  • Create dashboards, alerts, SLOs, SLIs, runbooks, and operational readiness checks for database-backed services.
  • Improve backup validation, restore testing, disaster recovery, failover readiness, business continuity, access controls, auditability, encryption, secrets management, and least-privilege controls.
  • Partner with application, infrastructure, security, compliance, and engineering teams; review designs and database changes; mentor engineers; and lead database reliability initiatives.

Requirements

  • At least 6 years of professional experience in software engineering, infrastructure engineering, database engineering, SRE, or platform engineering.
  • Strong software engineering ability in at least one production language such as Go, Python, or TypeScript.
  • Demonstrated ability to build production-quality internal tools, libraries, frameworks, services, or platform components used by other engineers.
  • Deep hands-on experience with relational databases, especially MySQL and/or PostgreSQL, in highly available production environments.
  • Strong knowledge of connection pooling, transactions, isolation levels, retries, timeouts, deadlocks, locking, migrations, and query execution.
  • Experience with shared database access patterns, ORM wrappers, migration frameworks, or developer-facing database tooling.
  • Hands-on AWS RDS/Aurora experience covering provisioning, upgrades, replicas, backups, failover, monitoring, parameter tuning, and troubleshooting.
  • Experience with RDS Proxy, PgBouncer, ProxySQL, or application-level connection pooling.
  • Ability to analyze performance using query plans, indexes, slow query logs, wait events, locks, metrics, and application traces.
  • Experience designing safe production database migration processes and observability for database-backed applications.
  • Experience with infrastructure-as-code and CI/CD systems such as Terraform, GitLab CI/CD, Kubernetes, or Helm.
  • Ability to influence teams through design reviews, documentation, technical standards, and practical implementation.
  • Demonstrated experience with Claude or equivalent large language model tools is required.
  • Bachelor’s degree in Computer Science.
  • Preferred qualifications include Golang development, database libraries and SDKs, microservices platforms, fintech or high-volume transactional systems, compliance-sensitive environments, access governance, distributed systems, operational automation, observability tools, and supporting data stores such as Elasticsearch.

Benefits

  • Full-time remote role.
  • Company culture emphasizes high standards, autonomy, action, trust, respectful disagreement, and delivering results.

Tech Stack

AWSDatadogElasticsearchGitGitLab CI/CDGoGrafanaHelmKubernetesMySQLPostgreSQLPrometheusPythonReactReact NativeTerraformTypeScript

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About Sezzle

201-500 employees
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