I would definitely include some security measures in here as they can compromise the data being stored. Though the system may remain up after a breach, it will be too late to prevent damage once it's done:
16. By all means necessary, take measures against SQL injections. This is probably a topic of an entire article.
17. Never, never store passwords as plain text, hash them with salt.
Software Developer (Senior)
What I get paid or have been paid to do:
Trading software and protocols (QuickFIX, Onix, etc).
Price feed development.
Trader simulation tools.
Back office, end of day reporting, NFA compliance.
Performance testing, optimization, and analysis.
Large scale data management, analysis, and visualization.
Worked with most major banks, some electronic exchanges, many data providors, and a few counter-parties:
MISO, PJM, NYISO, NEISO, CAISO, AESO, ERCOT, BOE, CME, CBOE, Eurex, ICE, Morgan Stanley, J.P. Morgan, RBS, EBS, Credit Suisse, Nomura, Barclays, Deutsche Bank, Citibank, UBS, Goldman Sachs, Bear Stearns (defunct), Triaina, Bloomberg
Experience in FX, energies, futures.