Stephen Priester Email & Phone Number

New York City, New York, Us

I currently work in Fixed Income Technology, developing algorithmic trading applications for the US Treasury trading desk. Previously, I built an electronic trading platform for the Municipals trading desk, leveraging ION MarketView.• Acquired requirements from and built an etrading system for the Municipal traders, adhering to agile methodologies• Developed market gateways conforming to ION’s Common Market API, handling the negotiation of bids wanted from TMC Bonds, MuniBrokers, Fabkom, and Bloomberg (Java, SQL, FIX Protocol, XML/FpML)• Developed custom market plugin using ION’s OpenMMI API, leveraging its user authentication mechanism and UI components to display and negotiate bids wanted (C#)• Developed a negotiation engine that calculates and automatically submits bids based on the issuer, sale date, bond rating, Bloomberg market data, MSRB trade history, customer tier, and inquiry size (Java, SQL, BLPAPI)• Enhanced MSRB reported trades with an interpolated benchmark spread and treasury ratios using market data from Bloomberg, Reuters, and IDC (Java, SQL, IBM MQ, BLPAPI)• Developed a UI in the MVC pattern, tabulating the enhanced MSRB data and charted data pairs using a least-squares regression line (C#, SQL)• Bridged data from ION platform and kdb+ to Node.js using JavaScript web sockets, providing an inexpensive web-based UI for data visualization (Java, JS)• Maintained kdb+ by upgrading to new versions, creating and modifying table schemas, parsing CSV files into hdb, and compressing hdb nightly to reduce disk usage by 90% (Q)

New York, New York, Us

• Provided second-line application support for the Rates (UST, AGCY, IRSUSD) & US Corporates (HY, IG) trading desk• Supported front office and middle office applications responsible for market data, pricing, analytics, offering, D2D and D2C order management, RFQ negotiation, P&L, and STP• Resolving outages by restarting processes, deploying emergency patch fixes, reverting to previous working versions, and failing over to contingency• Managed production issues by opening and tracking incident tickets, troubleshooting symptoms, coordinating root cause analysis with relevant parties (ECNs, vendors, dev teams), and publishing postmortems to management• Maintained ION platform stability by optimizing data flow, eliminating routing loops and duplicate data paths, and implementing recommendations on ION’s annual platform review• Performed QA/UAT and upgrades of ION market gateways, MMI plugins, and components