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Andrew Oliver

@andrewoliver

Software engineer at Vybestack building llxprt-code, a multi-provider coding-agent runtime with sandboxing and MCP integration.

United States

Message

What I'm looking for

Agentic engineering

At Vybestack, I’m building llxprt-code, a multi-provider AI coding-agent CLI and embeddable runtime. I rewrote it for Bun, added provider and model switching, and developed MCP tool integration and container-enforced sandboxing.

I created and co-founded Apache POI, which reads and writes Excel, Word, and other OLE2 documents; I was also elected an Apache Lucene committer. At JBoss, Inc., I wrote production authentication code, including LDAPExtLoginModule, and designed a collaboration server that became the backbone of MMS messaging in Europe.

Since 2024, I’ve delivered technical content and marketing work for database companies by building agent systems, including a research pipeline with browser-automated verification and document-generation tooling. I also write InfoWorld’s developer column and contribute to open-source projects across the ecosystem.

Experience

Work history, roles, and key accomplishments

Current

Founder & Principal Engineer

Current

Vybestack

Mar 2025 - Present (1 year 7 months)

Building AI agent harnesses and developer tooling, including multi-provider AI coding-agent CLI and embeddable agent runtime. Daily multi-model practice across Anthropic, OpenAI, Google, and open-weight models.

TypeScript Rust Python MCP Agent Harness Engineering Context Engineering Custom Tool Schemas Evals Multi Provider Routing VLLM Quantization Sandboxing Docker Podman

Current

Independent Consultant

Current

Gable.ai, MariaDB

Jan 2024 - Present (2 years 9 months)

Marketing and technical-content engagements delivered by building agentic tooling, including research pipelines, document-generation systems, and video production. Authored production datasheets, whitepapers, and migration guides.

Python TypeScript Research Agents Document Generation LaTeX Video Production TTS Diarization MCP

Current

Columnist

Current

InfoWorld

Jan 2012 - Present (14 years 9 months)

Writes a developer-focused column (originally Strategic Developer) and contributes to the BOSSIE and Technology of the Year awards. Recent work covers building AI agents that survive production.

Technical Writer Developer Advocacy AI Agents

Director to Head of Marketing

Lucidworks, Couchbase, Yugabyte, MariaDB, CelerData

Jan 2016 - Dec 2024 (8 years 11 months)

Marketing leadership at five database and search companies, focusing on benchmark design, competitive architecture analysis, developer education, and technical writing. Co-authored Distributed SQL For Dummies and two DZone Refcards.

Product Marketing Technical Writer Benchmark Design Competitive Analysis Developer Education

President / Founder

Mammoth Data, Inc.

Jan 2008 - Dec 2016 (8 years 11 months)

Bootstrapped a consultancy to ~40 people and ~$4M annual revenue, with clients including Google and the Bill & Melinda Gates Foundation. Led production launches and architected big-data and analytics systems.

Hadoop Spark MongoDB RDBMS Architecture Consulting Leadership

Principal Software Engineer

Red Hat

Jan 2006 - Dec 2006 (11 months)

Provided performance training and technical content following the JBoss acquisition.

JBoss Performance Training Technical Content

Lead Software Developer

JBoss, Inc.

Jan 2002 - Dec 2006 (4 years 11 months)

Early employee who wrote production code including LDAPExtLoginModule and other core application-server features. Consulted on JVM problem determination, tuning, and classloader issues, and designed a collaboration server for MMS messaging in Europe.

Java JBoss LDAP JVM Tuning Class Loader Collaboration Server

Software Engineer (Contract)

Cisco, IBM, Lucent, Ericsson, Mobilcom AG

Jan 1997 - Dec 2002 (5 years 11 months)

Java, C++, and systems contracting. Converted Ericsson's HP-UX reporting system to Java, worked on IBM Universal Management System, and wrote a SCSI driver for OS/2.

Java C++C HP UX OS 2 SCSI Express Systems Programming