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Principal Infrastructure Performance Engineer at Upgrade. Location Information: United States. Upgrade is a fintech unicorn founded in 2017. Since then we’ve helped customers access over $21 billion in consumer credit, with millions of families across America using a credit line, personal loan, or Rewards Checking or Premier Savings account through Upgrade.. Build a resilient, secure, and efficient cloud based observability platform.. Monitor and troubleshoot platform issues, including finding solutions to reduce known issues.. Build and scale the observability infrastructure to meet rapidly increasing demand.. Develop and improve operational practices and procedures.. Improve database monitoring: develop custom prometheus exporters in Go for use cases that go beyond what is possible with SQL exporter. Create Grafana dashboards and alerts for these new metrics.. MCP servers for observability: deploy MCP server to integrate our observability stack with our LLM tools.. 8+ years of relevant production-level experience.. Experience with VictoriaMetrics.. Experience with Sumologic.. Experience with tracing tools (e.g. OpenTelemetry, Honeycomb, Tempo).. Experience with profiling tools (e.g. Pyroscope). Knowledge of cloud monitoring, logging and cost management tools.. Programming/scripting knowledge (Go, Java, or Python) and understanding of JVM concepts.. In-depth knowledge of AWS services, hands-on experience in AWS provisioning using terraform.. Experience with containerized applications and Kubernetes / EKS. Creating and updating / maintaining Helm charts.. Understanding of microservices architecture and debugging/investigation techniques.. Strong understanding of systems, networking and troubleshooting techniques.. Experience in automated build pipeline, continuous integration and continuous deployment.. Ability to operate in an agile, entrepreneurial start-up environment.. Experience with running Linux in production.. Competitive salary and stock option plan.. 100% paid coverage of medical, dental and vision insurance.. Flexible PTO.. Learning stipend for personal growth and development.. Paid parental leave.. Health & wellness initiatives.