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Senior Database Reliability Engineer

2 weeks, 2 days ago
Brazil
Full-time
Senior
Database Administrator
DevOps and Infrastructure
AWS CI/CD Datadog Elasticsearch Encryption Git Go Grafana Helm Kubernetes Microservices MySQL New Relic OpenTelemetry PostgreSQL Prometheus Python React React Native REST API Secrets Management 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 194

Description

  • Design, build, and maintain shared database platform components such as connection packages, client libraries, migration tooling, safety checks, and developer-facing abstractions.
  • Establish reliable and scalable patterns for how services connect to and interact with relational databases across production, staging, and development.
  • Partner with backend engineering teams to improve connection handling, transactions, 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 standards for database access, schema design, migrations, indexing, query performance, and operational readiness.
  • Architect and improve database infrastructure across AWS RDS/Aurora, including replicas, backups, failover, parameter groups, monitoring, and capacity planning.
  • Lead database reliability initiatives that reduce operational risk, improve performance, and support safe scaling.
  • Review application designs and database changes early in the development lifecycle to build reliability, scalability, maintainability, and security into the design.
  • Build guardrails for database migrations, including automated checks, rollback expectations, schema review workflows, observability, and production safety controls.
  • Improve developer self-service for database provisioning, access, schema management, local development, testing, and observability.

Requirements

  • 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.
  • Proven 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 high-availability production environments.
  • Strong understanding of how application code interacts with databases, including pooling, transactions, isolation levels, retries, timeouts, deadlocks, locking, migrations, and query execution.
  • Experience designing or improving shared database access patterns, internal database packages, 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 tools such as RDS Proxy, PgBouncer, ProxySQL, or application-level pooling.
  • Strong ability to analyze database performance using query plans, indexes, slow query logs, wait events, locks, metrics, and 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 engineering teams through design reviews, documentation, technical standards, and practical implementation.
  • Ability to operate 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 Golang application development and database access patterns (preferred).
  • Experience creating database libraries, SDKs, service templates, migration frameworks, or paved-road developer tooling (preferred).
  • Experience improving database reliability across many services or teams, not just one application (preferred).
  • Experience in 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).
  • Experience with database access governance, audit logging, secrets management, encryption, IAM authentication, and least-privilege access models (preferred).
  • Experience with large-scale operational automation for provisioning, patching, failover testing, backup validation, access management, or schema review (preferred).
  • Experience with distributed systems patterns such as transactional outbox, event-driven architecture, idempotency, queues, eventual consistency, and data consistency tradeoffs (preferred).
  • Experience with observability tools such as Prometheus, Grafana, Datadog, CloudWatch, Performance Insights, OpenTelemetry, or New Relic (preferred).
  • Familiarity with Elasticsearch or other supporting data stores (preferred).
  • Familiarity with AI developer tooling such as Claude Code, Gemini CLI, Codex, or Cursor (preferred).

Benefits

  • Salary range of $5,000 to $9,500 USD per month gross.
  • Full-time remote role.
  • Opportunity to work with a modern open-source-focused technology stack.
  • Chance to use AI tooling and automation to improve productivity and database reliability.
  • Work in a mission-driven fintech company focused on financially empowering consumers and improving merchant outcomes.

Interested in this position?

Apply directly on the company website

Apply Now

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