Banking & Financial Services
Moved a payments business to a new global standard with no downtime
A careful switch from the old message format to the new one, live throughout.
Situation
The business ran on an old payment message format just as the market moved to the new global standard. Staying put meant losing data and eventually being cut off, but switching in one go risked taking live payments down.
Action
I led the move one message type at a time. I built a translator that speaks both the old and new formats, ran the new alongside the old to prove they matched, and switched each part over only once it was safe, with a tested way back if anything looked wrong.
Impact
The business moved to the new standard without a single payment affecting outage, and gained richer payment data that improves both automation and compliance.
Insight
A shared model and a translator turn a risky big bang into a series of small, reversible steps. That is what makes no downtime real.
Where it ran
GIP / GACH / card switching, aligned to the GhIPSS ISO 20022 programme
Figures for this engagement are available on request.
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Fully remote worldwide, open to global opportunities. Working across US and EU time zones from Accra, Ghana.