Senior Database Reliability Engineer

Sezzle

. Design, build, and maintain shared database platform components, connection packages, client libraries, migration tooling, safety checks, query standards, and developer abstractions .

Posted 11/3/2026full-timeRemote • ColombiaSenior💰 $5,000 - $9,500 per monthWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in designing and maintaining scalable database platforms, with a strong focus on AWS RDS/Aurora MySQL and PostgreSQL. Proficient in database performance analysis, migration processes, and operational readiness, while ensuring compliance and security standards are met.

Highest-signal resume keywords

AWS RDS/Aurora MySQLPostgreSQLGo ProgrammingDatabase Performance AnalysisInfrastructure-as-Code

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Database DesignQuery PerformanceMigration FrameworksConnection PoolingRelational DatabasesAutomation ToolsCI/CD SystemsORM WrappersTelemetry AnalysisDisaster Recovery

Soft Skills

MentoringCollaborationInfluencing Engineering TeamsProblem SolvingIndependent Operation

Tools & Technologies

TerraformGitLab CI/CDKubernetesHelmPgBouncerProxySQLElasticsearchAI Developer ToolingCloud InfrastructureOperational Dashboards

Industry Keywords

High-Availability ProductionCompliance-Sensitive EnvironmentsFintechOperational AutomationDistributed SystemsDatabase GovernanceProduction TroubleshootingIncident ResponseSLOsPCI/SOC 2 Controls

Tech Stack

Tools & technologies

AWSCloudDistributed SystemsElasticSearchKubernetesMicroservicesMySQLPostgresPythonTerraformTypeScriptGo

About the role

Key responsibilities & impact

Design, build, and maintain shared database platform components, connection packages, client libraries, migration tooling, safety checks, query standards, and developer abstractions
Establish reliable and scalable database connection and interaction patterns across production, staging, and development
Partner with backend teams on connection lifecycle, transactions, retries, timeouts, pooling, query patterns, and migration workflows
Build automation and internal tooling for safer, repeatable database operations
Define and enforce standards for database access, schema design, migrations, indexing, query performance, connection management, and operational readiness
Architect and improve AWS RDS/Aurora MySQL and PostgreSQL infrastructure, RDS Proxy, replicas, backups, failover, monitoring, parameter groups, and capacity planning
Lead database reliability initiatives to reduce operational risk and improve performance
Review application designs and database changes for reliability, scalability, maintainability, and security
Build migration guardrails, 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
Investigate production database issues using telemetry, metrics, logs, query plans, traces, and cloud infrastructure data
Resolve systemic database problems such as unsafe migrations, inefficient queries, connection storms, lock contention, replication lag, and capacity bottlenecks
Create dashboards, alerts, SLOs, SLIs, runbooks, and operational readiness checks
Improve backup validation, restore testing, disaster recovery, failover readiness, and business continuity
Partner with security and compliance teams on access controls, auditability, encryption, secrets management, least privilege, and PCI/SOC 2 controls
Mentor engineers on database design, query performance, safe migrations, operational readiness, and production debugging
Use automation and AI tooling to improve migration review, query analysis, incident investigation, documentation, and developer productivity

Requirements

What you’ll need

6+ years of professional software engineering, infrastructure engineering, database engineering, SRE, or platform engineering experience
Strong software engineering ability in Go, Python, or TypeScript
Ability to build production-quality internal tools, libraries, frameworks, services, or platform components
Deep hands-on experience with relational databases, especially MySQL and/or PostgreSQL, in high-availability production environments
Strong understanding of application/database interactions, connection pooling, transactions, isolation levels, retries, timeouts, deadlocks, locking, migrations, and query execution
Experience with 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 production troubleshooting
Experience with RDS Proxy, PgBouncer, ProxySQL, or application-level pooling
Ability to analyze 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 understanding of database observability, including metrics, logs, traces, SLOs, alerting, and incident response
Experience with infrastructure-as-code and CI/CD systems such as Terraform, GitLab CI/CD, Kubernetes, Helm, or similar tooling
Ability to influence engineering teams through design reviews, documentation, technical standards, and implementation
Ability to operate independently and drive high-impact solutions to completion
Demonstrated experience working with Claude or equivalent large language model tools is required
Bachelor’s degree in Computer Science
Preferred: microservices platform capabilities, Golang application development, database libraries/SDKs, fintech or high-volume transactional systems, compliance-sensitive environments, database governance, operational automation, distributed systems, observability tools, Elasticsearch, and AI developer tooling

Benefits

Comp & perks

Competitive salary of $5,000–$9,500 USD per month
Culture including skilled musicians, yogis, cyclists, chefs, golfers, dog-lovers, and rock-climbers
Remote work indicated by #Li-remote