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Core Competencies
Role fitCore Competencies
Use this summary to align your resume positioning with the role.
Demonstrates expertise in designing and maintaining relational database systems, particularly MySQL and PostgreSQL, with a focus on performance optimization, migration processes, and operational readiness. Proficient in AWS RDS/Aurora infrastructure management and automation for database operations.
Highest-signal resume keywords
Relational Database ManagementAWS RDS/Aurora InfrastructureDatabase Performance AnalysisDatabase Migration ProcessesInfrastructure-as-Code
ATS Keywords
Tailor your resumeApplicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills
Go ProgrammingPython ProgrammingTypeScript ProgrammingMySQLPostgreSQLDatabase Connection ManagementQuery Performance OptimizationAutomation ToolsCI/CD SystemsObservability Metrics
Soft Skills
MentoringProblem SolvingInfluencing Engineering TeamsIndependent OperationCollaboration
Tools & Technologies
RDS ProxyPgBouncerProxySQLTerraformGitLab CI/CDKubernetesHelmTelemetry ToolsAI ToolingInternal Tooling
Industry Keywords
High-Availability ProductionOperational ReadinessDatabase SecurityCompliance StandardsBusiness Continuity
Tech Stack
Tools & technologiesAWSCloudKubernetesMySQLPostgresPythonTerraformTypeScriptGo
About the role
Key responsibilities & impact- Design, build, and maintain shared database platform components used by Sezzle applications
- Establish reliable, scalable patterns for services connecting to and interacting with relational databases
- Partner with backend engineering teams to improve 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, 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 provisioning, access, schema management, local development, testing, and observability
- Investigate production database issues using telemetry, metrics, logs, query plans, traces, and cloud infrastructure data
- Identify and fix systemic issues such as unsafe migrations, inefficient queries, connection storms, lock contention, replication lag, and capacity bottlenecks
- Create and maintain dashboards, alerts, SLOs, SLIs, runbooks, and operational readiness checks
- Improve backup validation, restore testing, disaster recovery, failover readiness, and business continuity
- Work 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, 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 at least one production programming 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 application code interactions with databases, including connection 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 production troubleshooting
- Experience with database connection management technologies 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 application traces
- Experience designing safe database migration processes for production systems
- Strong understanding of observability for database-backed applications, 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, identify high-impact problems, propose pragmatic solutions, and drive them to completion
- Demonstrated experience working with Claude or equivalent large language model tools is required
- Bachelor’s degree in Computer Science