David Cuellar Software Engineering Leader
Personal Command Center

I build calm systems for messy workflows.

Software engineering leader building product-grade tools across data, automation, operations, and family-life workflows.

I'm a software engineer and engineering leader focused on turning complex operational problems into reliable, usable products - from enterprise data platforms and automation to personal tools for family life, fantasy football, and junior golf scheduling.

San Antonio, TX 13+ years across product, platform, data, and operations
Explore the build log View projects Connect on LinkedIn

Operating principles

A leadership system for shipping useful software.

For 13+ years, I've worked across financial services, technology, data platforms, compliance-heavy systems, and developer productivity. My favorite work sits at the intersection of architecture, automation, product thinking, and clear execution.

01

Ship the useful thing.

The best architecture is the one that gets a real workflow unstuck.

02

Make the system visible.

Logs, dashboards, tests, docs, and observability are part of the product.

03

Turn chaos into workflows.

A good tool should make the next right action obvious.

Featured projects

Workflow products, built from real operational pressure.

These projects are product nodes in the system map: family operations, league storytelling, and junior-golf scheduling.

Live product

Family Hub

A home-operations app for family calendars, chores, todos, meals, weather, and weekly household workflows.

  • Family Ops
  • Product Engineering
  • Vue
  • FastAPI
  • Workflow Design
View app
League OS

LeagueLore

A fantasy-football league companion for history, rankings, draft prep, and league storytelling.

  • Fantasy Football
  • Analytics
  • League History
  • Product Design

Verify spelling of the LeagueLore domain before launch.

View app
Utility app

STPGA Scheduler

A junior-golf scheduling tool for tracking events, dates, and planning across STPGA tournament options.

  • Junior Golf
  • Scheduling
  • Family Workflow
  • Utility App
View app

Interactive resume

Traditional timeline, command-center treatment.

A readable path through technical leadership, platform automation, data systems, product ownership, and education.

USAA

San Antonio, TX

  • Software Engineer Lead
  • Software Engineer Senior

Technical lead for bank operations digital delivery, compliance-sensitive workflows, automated testing, documentation, code reviews, and production releases.

  • Led highly critical issue-management and collections features against compliance deadlines.
  • Helped deliver one-way outbound collection email workflows across a multi-team initiative.
  • Led an MVP fraud transaction history UI/API solution for a critical compliance finding, then helped redesign the backend query solution quickly.
  • Java
  • APIs
  • Testing
  • Compliance
  • Production Delivery
  • Leadership

VantagePoint / JunglePilot

  • Independent Software Consultant

Consulted on cloud-agent automation, Python codebases, Kubernetes autoscaling, and one-click customer environment provisioning.

  • Top-2 GitHub contributor in the ThreatKB Python codebase by InQuest.
  • Implemented Kubernetes autoscaling for cloud agents based on queue size.
  • Integrated signup flow with one-click environment provisioning via Helm charts.
  • Python
  • Kubernetes
  • Helm
  • Azure
  • Automation

Netspend / TSYS

  • Solutions Architect
  • Senior Software Engineer
  • Software Engineer II

Technical lead in internal operations across MDM, ETL, data governance, Java services, Kafka, Snowflake, React, and database release automation.

  • Expanded TIBCO EBX MDM application with custom REST APIs and React UIs.
  • Spoke at MDM/Data Governance conferences and TIBCO Now.
  • Drove SDLC standardization and database release automation.
  • Java
  • React
  • Kafka
  • Snowflake
  • Oracle PL/SQL
  • MDM
  • Data Governance

Hewlett-Packard

  • Product Owner
  • IT Developer/Engineer

Product owner, ScrumMaster, and lead developer for financial claims and product content systems.

  • Built automation scripts and Puppet modules for CI server setup.
  • Co-authored Java API used by HP.com to retrieve product content across locales.
  • Built .NET, Java, and PL/SQL solutions integrating content and digital assets.
  • Java
  • .NET
  • Oracle
  • Puppet
  • CI
  • Scrum

University of Texas at Austin

Bachelor of Science in Mathematics

  • Scientific Computation
  • Minor: Computer Science

Build log resume

Career milestones as commits.

A creative resume mode for the work beneath the titles: the architecture decisions, compliance saves, automation paths, data-system refactors, and leadership habits that make delivery calmer.

Scan the stack
git log --author="David Cuellar" --systems
  1. feat(platform): automate cloud-agent scaling with Kubernetes

    Turned cloud-agent demand signals into autoscaling infrastructure using queue-aware delivery patterns.

  2. fix(compliance): deliver bank operations workflow before deadline

    Led critical issue-management and collections delivery across compliance-sensitive bank operations.

  3. refactor(data): simplify enterprise MDM access patterns

    Expanded data governance platforms with APIs, React surfaces, and cleaner release automation.

  4. build(product): ship Family Hub for household operations

    Designed a home-operations product that makes calendars, chores, todos, meals, and weather easier to coordinate.

  5. chore(leadership): improve documentation, testing, and code review culture

    Kept delivery healthier by making quality practices visible, repeatable, and easier for teams to maintain.

Skill matrix

Grouped by how systems actually get built.

The stack is organized by operating area instead of a loose cloud of technologies.

Product Engineering

Product surfaces, APIs, and typed front-end systems.

VueReactTypeScriptFastAPIPythonJava

Platform & Delivery

Delivery pipelines, runtime infrastructure, and release discipline.

DockerAWSCI/CDKubernetesHelmGitLabGitHub

Data & Systems

Operational data, governance, event streams, and durable storage.

PostgreSQLSnowflakeKafkaOracle PL/SQLData GovernanceMDM

Engineering Leadership

Technical clarity, delivery planning, coaching, and quality systems.

ArchitectureCode ReviewDocumentationCoachingDelivery PlanningTesting Strategy

System map

Product thinking across messy real-world workflows.

The connective tissue is the same whether the domain is bank operations, enterprise data movement, cloud automation, family coordination, fantasy-football history, or junior-golf planning: make the system legible, then make the next action easier.

DavidOS
Data platforms
Automation
Family workflows
Product delivery