Resolving Complex Database Issues

Leland Rogers

Senior Technical Support Engineer @ SingleStore

I specialize in helping customers solve complex technical problems across the stack. My day-to-day involves reading source code to uncover root causes, researching intricate enterprise integrations, and collaborating directly with engineering teams to resolve mission-critical bugs.

My engineering approach is highly adaptable. I am just as comfortable tuning bare-metal Linux hardware and debugging pipeline logs as I am managing cloud-native Kubernetes deployments, managing customer expectations, or building out full-stack web applications.

Core Engineering & Support

Distributed Databases

Expertise in SingleStore and deep knowledge of relational databases like MySQL and PostgreSQL. I specialize in diagnosing complex infrastructure issues, identifying core engine bugs, and guiding customers to configure their deployments for optimal performance and stability at scale.

SingleStore MySQL / Postgres Cluster Optimization

Kubernetes & Cloud Infra

Experience managing stateful workloads using Kubernetes Operators and Helm charts. I troubleshoot deployments across managed cloud environments (AKS, EKS, GCP) and configure external data pipelines using AWS S3 and Apache Spark.

K8s Operators Helm AKS / EKS / GCP

Enterprise Security & Auth

Architecting and troubleshooting secure access protocols within enterprise infrastructure. Deep knowledge of directory services, isolating LDAP filter synchronization issues, managing strict RBAC policies, and resolving Kerberos authentication failures.

LDAP / AD RBAC Kerberos

Linux Systems & Performance

Extensive experience across various Linux distributions and bare-metal environments. I regularly analyze logs for OoM and connection errors, read source code to track down bugs, and compile advanced CPU schedulers for hardware performance optimization.

Cross-Distro Linux Log Analysis Hardware Tuning

Full Stack Web Development

Modern Frontend Architecture

Building fast and responsive web applications is a core part of my skillset. I build modern frontends using React, Redux, Astro, and Tailwind. My focus is on creating clean user interfaces backed by solid API design and core web fundamentals.

React.js & Redux
Astro & Tailwind
HTML, CSS & LESS
JavaScript (ES6+)

Technologies & Toolkit

Linux & Systems

Linux / Ubuntu Bash Scripting Kernel Schedulers Docker Hardware Tuning Pipeline Analysis

Databases & Data

SingleStore MySQL PostgreSQL Apache Spark Engine Diagnostics Cluster Optimization

Cloud & Kubernetes

Kubernetes K8s Operators Helm AWS (S3/EKS) Azure (AKS) GCP

Security & Observability

LDAP & Active Directory Kerberos RBAC Prometheus & Grafana Root Cause Analysis

Languages & Frontend

Go Python C JavaScript (ES6+) React & Redux Astro & Tailwind

Tooling & AI Workflows

Git / Version Control Local LLMs (Ollama) Claude & Gemini Workflow Automation Prompt Engineering