Sezzle

Senior Database Reliability Engineer

Sezzle
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5 days ago
Remote, MexicoSenior

Responsibilities

  • Design, build, and maintain shared database platform components, libraries, migration tooling, safety checks, and developer abstractions.
  • Establish reliable patterns for database connections, transactions, pooling, retries, timeouts, queries, migrations, and schema management.
  • Build automation, internal tooling, guardrails, and self-service workflows for database provisioning, access, testing, observability, and operations.
  • Architect and improve AWS RDS/Aurora MySQL and PostgreSQL infrastructure, including replicas, backups, failover, monitoring, parameter tuning, and capacity planning.
  • Investigate and resolve systemic database issues such as inefficient queries, connection storms, lock contention, replication lag, unsafe migrations, and capacity bottlenecks.
  • Create dashboards, alerts, SLOs, SLIs, runbooks, migration observability, backup validation, restore testing, disaster recovery, and failover readiness processes.
  • Partner with application, infrastructure, security, compliance, and engineering teams on database standards, access controls, auditability, encryption, secrets management, and least-privilege controls.
  • Mentor engineers and use automation and AI tooling to improve database design, migration review, query analysis, incident investigation, and developer productivity.

Requirements

  • At least 6 years of professional experience in software engineering, infrastructure engineering, database engineering, SRE, or platform engineering.
  • Strong production programming ability in Go, Python, or TypeScript.
  • Experience building production-quality internal tools, libraries, frameworks, services, or platform components used by other engineers.
  • Deep hands-on experience with 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 building 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.
  • 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 tooling such as Terraform, GitLab CI/CD, Kubernetes, or Helm.
  • Ability to influence teams through design reviews, documentation, technical standards, and practical implementation.
  • Experience working with Claude or equivalent large language model tools is required.
  • Bachelor’s degree in Computer Science.
  • Preferred experience includes Golang development, database libraries and SDKs, microservices platforms, high-volume transactional systems, PCI DSS or SOC 2 environments, access governance, operational automation, distributed systems, observability tools, and supporting data stores such as Elasticsearch.

Benefits

  • The role is full-time and remote.
  • The salary range is $5,000–$9,500 USD per month gross.
  • The company emphasizes an engineering culture centered on high standards, autonomy, action, trust, constructive disagreement, and delivery.

Tech Stack

AWSDatadogElasticsearchGitGitLab CI/CDGoGrafanaHelmKubernetesMySQLPostgreSQLPrometheusPythonReactReact NativeTerraformTypeScript

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Sezzle

About Sezzle

201-500 employees
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