Software Developer · Mentor · Problem Solver

Hollen Graver

I build resilient software that powers real businesses. From the JVM, C#, and Go services to Angular front-ends, I focus on clean architecture, measurable impact, and empowering teams through mentorship.

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Summary

What I bring

A decade of experience shipping production software, thriving in cross-functional teams, and bridging backend services with thoughtful user interfaces. I gravitate toward high-leverage work: scalable platforms, developer enablement, and data-informed decisions. Outside of work you can find me exploring the outdoors, coaching, or building with the latest AI tools.

Experience

Impactful roles

Campspot · Senior Developer Level 2 Java · Kotlin · Angular

Mar 2024 – Present

  • Lead development of high-impact product features, continually raising the bar for UX and business results.
  • Mentor developers through code reviews and architectural guidance, accelerating team growth.
  • Deliver scalable services with PostgreSQL, MySQL, Elasticsearch, OpenSearch, and Redis.

Campspot · Senior Developer Level 1

Apr 2022 – Mar 2024

  • Designed and launched a gift card platform adopted by hundreds of clients, boosting engagement and revenue.
  • Drove UX-centered features that improved satisfaction and retention metrics.

Campspot · Developer Level 2

Jul 2019 – Apr 2022

  • Owned feature rollouts across Java/Kotlin services and Angular front-ends.
  • Strengthened data layers leveraging PostgreSQL, MySQL, and search tooling.

PRSM Healthcare · Software Engineer C# · .NET · Systems Design

Jun 2014 – May 2019

  • Delivered web and data solutions that doubled client capacity while keeping ops stable.
  • Built fault-tolerant infrastructure with redundant VPNs and load balancing to guarantee uptime.
  • Collaborated across teams to ensure data moved securely and on schedule.

Skills

Full-stack toolkit

Languages

Java · Kotlin · JavaScript · TypeScript · Go · Python · C#

Frameworks

AngularJS & 2+ · Flutter · Dropwizard · Quarkus · ASP.NET · .NET · .NET Core · Entity Framework

Data & Infra

PostgreSQL · MySQL · SQLite · Elasticsearch · OpenSearch · Redis · Valkey · Message Queues

Platforms

Docker · Kubernetes · AWS · API Design · Observability

Soft Skills

Mentorship · Communication · Teaching · Project Leadership

AI & ML

LLMs · Agents · MCP · Diffusion-based image generation

Education

Mansfield University of Pennsylvania

B.Sc. Computer Information Science

Information Systems focus · Graduated 2014