Melissa Christy, Director of One Green Button is a financial services transformation executive with 29 years’ experience, including 23 in mortgages, who builds lending businesses from a blank page and re-engineers established ones. In 2018/2019, Melissa built 86 400’s mortgage business (now ubank’s mortgage business) as Australia’s only neobank to launch home loans, and in 2024/2025 designed and built AMP Bank’s custom origination platform, delivered on time and on budget.
A skilled negotiator and influencer who builds the case for change and wins backing at the most senior levels. She has secured CEO approval and funding for enterprise transformation, negotiated warehouse funding term sheets, presented to APRA, boards and investors, and run competitive RFPs to select and orchestrate multi-vendor partner ecosystems.
A recognised industry innovator, listed on the Global Mortgage 100 list (2021, 2025), and a regular conference speaker on digital lending. Melissa brings commercial discipline across strategy, technology and partnerships, and is now shaping AI-enabled origination strategy, aligning executives, regulators, brokers, aggregators and technology partners around a shared outcome.
WHy ONE GREEN BUTTON?
“Melissa is hugely knowledgable on all things mortgage origination; both from a network perspective and all the nitty gritty of assessment and fulfillment. And even re: third party services - benefits, weaknesses, how to work with them.”
Testimonials
“Melissa is a true pioneer in mortgages and was the architect, executor and promoter of what was and still is the only digital mortgage for Brokers. With Melissa’s deep and broad knowledge of the customer, broker and value chain Melissa was able to work across all teams (including 15+ suppliers) to bring to life a game changing experience that sets 86 400 apart from the pack and up for growth over the next 5 years.”
ARTICLES
Third Party providers MELISSA has worked with
Simpology
Loanapp and OMNI/Single App View
Loanworks
Direct solution, Loan origination system
NextGen
Broker Centre and App Centre
Equifax
Verification Exchange, Modern Fraud Check, Bureau, Access Seeker, ID Matrix, Title Search, ASIC searches
Fortiro
Protect, Accelerate
ID Verse/LexisNexus
Verification of Identity
Helia
Lenders Mortgage Insurance
Experian
Bankstatements
GBG
Green ID
Mogo
Screenscraping
Cotality
Valex, Rental AVM, PropertyHub, Property Bureau
MSA National
Document generation, 90 second documents, Personalised videos, Settlement
First Title
Document generation, Settlement, FastRefi
InfoTrack
Title Searches, ASIC searches
Perpetual
Document custody
Data Action
Core Banking
Engine by Starling
Core Banking
PEXA
AGGREGATORS
The broker channel is a big part of the Australian Mortgage Market, and Melissa brings over 13 years experience working closely with aggregators and brokers including:
Connective
AFG
LMG
Finsure
Mortgage Choice
Lendi/Aussie
SFG (Salestrekker)
Outsource (Salestrekker)
YBR (Salestrekker)
Astute (Salestrekker)
nMB
APPLICATION TYPES and FEATURES
Third Party/First Party/Digital Direct
PAYG
Self-employed
Construction
Top Ups
Guarantors
Residential SMSF
LMI
Offset