Lumen & Lever advises, examines and builds technology for work where failure is expensive. We work across AI, software systems, technical assurance and evidence-intensive workflows, from board-level decisions through proof and production delivery. Our systems are built with source traceability, privacy, human review and audit controls where the work requires them. Sourcetrace is our specialist document-intelligence capability for organisations whose money and risk live in contracts, leases, reports and records.
Lumen & Lever is led by Lee Powell: Oxford-trained software engineer, approximately thirty years across enterprise architecture and production delivery in banking, insurance, exchange, healthcare and government.
He built IBM’s first online retail platform and document software used by more than a million writers worldwide. The same discipline that ran a hundred-million-dollar post-acquisition banking integration a now advises boards, examines technology assets, proves high-value applications, and builds production software and AI systems.
Commonwealth Bank of Australia · Deutsche Bank · ASX · IBM · Zurich Insurance · GlaxoSmithKline · ASIC · Defence-sector systems
These are organisations and sectors from Lee Powell’s prior career unless separately named in a Lumen & Lever case record. Confirmed Lumen & Lever outcomes are published separately only when permission exists.
Based in Melbourne. In person or remote, anywhere, with travel at cost outside Melbourne.
a. Post-acquisition integration programme, Commonwealth Bank of Australia.
Too often the values are in the lobby and nowhere else. You try to contact a company and there is no email address, only a chat window with a bot behind it. Press one, press two, press five, and forty minutes of hold music later you are explaining your problem to an AI assistant that cannot fix it. The gap between what is said and what is done has become ordinary.
We are not that. Write to hello@lumenandlever.com. Lee replies, within one business day, and it is actually Lee.
We were once asked a question we have kept: what if five years of work produced two hundred clients instead of twenty thousand, but the right two hundred? We took it seriously. We are not collecting clients. We are building a small number of long relationships with people we would choose to work with anyway, where either both sides win or neither does.
A$5,000, all in.
Your board sends its questions ahead. Every one comes back answered in writing. Then ninety minutes in the room, and you leave with decisions, not a presentation.
One week, end to end.
Book the Board SessionA$9,500, fixed.
Pick the one job you need technology to do. An AI workflow. A contract read. A report produced. A slow cycle shortened. We run it on your own material for two weeks. It works, or you get a written account of why it does not.
Start a ProofFrom A$35,000, quoted after a Proof.
We build the system, fit the controls, and run it. One proposal, one number, and the running of it is in the number.
Talk about a BuildAll prices are in Australian dollars. There is no retainer: you fund one proven piece of working functionality at a time, and each release of funds follows a demonstration rather than a promise.