David Pengelley pixel art avatar

About

The Narrative

With over 15 years of experience spanning solution engineering, product strategy, and sales enablement, David has spent his career at the intersection of complex technology and business value.

David Pengelley — professional portrait

Background

From Enterprise to Founder

During his 11-year tenure at Salesforce, he led high-performing technical teams that supported over $20M in closed deals annually. His work wasn't just about the technology — it was about creating immersive experiences (IoT/AR) that allowed C-level stakeholders to visualise the future of their business.

As a U.S. Patent holder for chatbot integration interfaces, David understands the architectural nuances of AI. Today, he applies this technical depth to ensure that every AI initiative is grounded in operational reality and clear ROI.

In 2023, he founded Valid Agenda to pursue a different thesis: that AI should produce measurable payback, not meetings. He co-founded Syllogism with Richard Webbe to bring this thesis to enterprise clients, and built Sairgent — a governable agentic operating system — as the engine behind it.

He has also shipped Chart Reporter (an FX analytics SaaS) and Sites by Agents (an AI-powered website builder), both built end-to-end as a solo operator using the same multi-agent systems he architects for clients.

Experience

Career Timeline

2023 – Present

Founder & AI Solutions Lead

Valid Agenda Pty Ltd / Syllogism

Implemented multi-agent automation systems using Claude API across 13+ specialised agents. Designed and shipped Chart Reporter (Next.js, Supabase, Vercel). Co-founded Syllogism for AI advisory. Delivered executive AI strategy workshops.

2018 – 2023

Director, Solutions (Q Branch, ANZ)

Salesforce

Established and led a cross-functional team of software engineers, designers, creative strategists, and media professionals. Directed innovative IoT/AR customer experiences. Led initiative to publish presales applications on Salesforce AppExchange, including patent submission and approval.

2011 – 2018

Senior Sales Engineer / Senior Manager APAC Demo Engineering

Salesforce

Designed and delivered customised technical demonstrations for enterprise clients. Resolved technical objections throughout sales cycles. Presented solution architecture to technical and executive audiences.

2010 – 2011

Business Account Executive

Telstra

Grew portfolio revenue from 98% to 110% of target within 9 months, ranking improvement from 32nd to 8th on state league ladder.

2007 – 2010

Manager — Devices, Technology & Sales Enablement

Mobile Mentor

Designed and delivered technical onboarding programs and sales training. Managed OEM relationships (HTC, Nokia, Samsung).

Highlights

Key Achievements

Salesforce Director

Led cross-functional teams supporting $20M+ in closed revenue annually with 30% YoY growth.

ROI & Blueprint Sessions

Designer of the 'AI Blueprint' methodology, a strategic audit focused on identifying the Cost of Inaction and high-impact ROI opportunities.

U.S. Patent Holder

Successfully secured a patent for a chatbot integration interface (US 10,885,911 B2, issued January 2021).

Sovereign AI Architect

Architect of decentralised, private AI frameworks that ensure enterprise data remains secure, sovereign, and under internal control.

Executive MBA (Quantic, 2020) · Bachelor of Computer Science (Curtin University, 2001)

Capabilities

Core Skills

Technical

LLM application design (Claude API)Prompt engineeringAgent architecturesPython (FastAPI, data processing)SQL & PostgreSQL (Supabase)Vector search (Pinecone)Docker & containerised deploymentWorkflow automation (n8n)

Business & Leadership

Solution architectureTechnical leadershipEnterprise stakeholder engagementAI governance & complianceRevenue-aligned solution engineering

Beyond Work

Beyond Strategy

When not architecting AI systems, David is focused on high-performance disciplines that require precision, logic, and strategic thinking.

Formula 1KarateQuantitative Trading

Want to work together? Let’s talk.

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