My role at Citibank started as a 3month contract in Debt Derivatives, Middle Office as a VB/ SQ Server developer to build an interest rate/yield pricing  system. The current system was an excel based system of 30 spreadsheets all linked together that worked well, but no one understood how it worked. My role was to re-engineered the system into a clean, componentised system that could easily modified and updated. The system worked by linking into Reuters and Bloomberg to get EOD interest rates and taking them to build yield curves. The yield curves were then input into the large mainframe systems to enable all the overnight processing to begin. I loved this job, it was fast paced and stressful, I learnt that decimals needed to go to 10 decimal points to ensure accuracy of pricing and small variance in numbers could lead to million of dollar differences.

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This was implemented over a 3-6month timeframe, however I stayed on contract for 3 years implementing various tools that could be leveraged by middle and front office to increase their efficiency and reduce manual work.

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By the end of the 3 years, I was dev team lead for 4 developers and had started my transition away from development work into project management.