Jiri Pik

Jiri Pik

Zurich, Switzerland
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Jiri Pik

Jiri Pik

Zurich, Switzerland
Member since October 24, 2014
Jiri has worked as a quantitative developer and architect for 10+ years at top banks like Goldman Sachs, J.P. Morgan, Citibank, Credit Suisse, and Deutsche Bank. Currently, he is the Founder and CEO of Wixesys. He's a results-oriented architect (Certified Scrum Professional, PMP, Microsoft Certified Professional) and strategist (FRM, CAIA) specializing in business intelligence, data mining, machine learning, and artificial intelligence.
Jiri is now available for hire
Portfolio
  • Wixesys
    .NET, Telerik, WPF MVVM, Prism, Excel-DNA, PostSharp, CUDA, Git, ASP.NET MVC...
  • Julius Baer
    Excel, VBA, C#, Matlab, ASP.NET MVC, SharePoint, Kendo, JavaScript, jQuery...
  • Phonak AG (Sonova Holding AG)
    TDD, C# .NET 4, VBA, ASP.NET, WPF, WCF, Linq, NUnit, Entity Framework...
Experience
  • SQL, 20 years
  • JavaScript, 15 years
  • C#, 12 years
  • Python, 10 years
  • CSS3, 5 years
  • HTML5, 5 years
  • ASP.NET, 10 years
  • Agile Software Development, 10 years
Zurich, Switzerland
Availability
Part-time
Preferred Environment
C#, Java, Python, VBA, SQL, JavaScript, HTML
The most amazing...
...thing I've architected and implemented is a decision support system used by all private bankers for Citibank.
Employment
  • CEO
    Wixesys
    2013 - PRESENT
    • Ran a successful Microsoft BizSpark startup firm.
    • Built Spearian for Excel, an MS Excel add-on providing revolutionary time saving functionality, and Spearian for Outlook, an MS Outlook add-on designed for CEOs, CIOs, CFOs and other people who need to process lots of information in as little time as possible.
    • Created smartscuit.com, a machine learning portal for financial data, as well as developing the mobile app version for iPhone and Android.
    Technologies: .NET, Telerik, WPF MVVM, Prism, Excel-DNA, PostSharp, CUDA, Git, ASP.NET MVC, Azure, Python, Java, MongoDB, MySQL, Linux
  • Financial Analyst & Developer
    Julius Baer
    2014 - 2014
    • Responsible for tactical architecture and rapid development and migration of legacy applications to industry best practice solutions with extensive reporting.
    • Delivered a prototype of a mobile application for distribution of internal news using Telerik platform, JavaScript, and HTML5/CSS3.
    • Upgraded an application for internal tracking of activities from MS Access to a multi-tier ASP.NET MVC application, extensively using Telerik Kendo UI.
    • Re-engineered the tool for fixed income proposals to the clients of a private bank.
    • Introduced an internal Excel add-on exposing internal APIs which were difficult to access otherwise.
    • Architected a time series database used for investment engineering, including a robust method for dealing with unreliable input data.
    Technologies: Excel, VBA, C#, Matlab, ASP.NET MVC, SharePoint, Kendo, JavaScript, jQuery, Telerik, Telerik Platform, iPhone/iPad/Android, SQL, Access, Excel-DNA, MS SQL Server, Triple A, SAP Business Objects, Reuters, Datastream, Bloomberg, Factset
  • Senior C# Test Automation Architect and Strategist
    Phonak AG (Sonova Holding AG)
    2012 - 2013
    • Directed and led the construction of dynamic code analytical tools for a $2B producer of audio hardware technologies (primarily wireless communication devices, hearing aids, and cochlear implants) sold worldwide.
    • Served as a senior consultant, project team lead, and technology architect, establishing industry-leading technological infrastructure for the company.
    • Architected a representative test cases generation framework.
    • Architected various business intelligence dashboards.
    Technologies: TDD, C# .NET 4, VBA, ASP.NET, WPF, WCF, Linq, NUnit, Entity Framework, NDepend, SQL Server, MySQL, Python, SharePoint, TeamCity, Splunk, SVN
  • Senior Software Engineer
    Quartal Financial Solutions AG
    2011 - 2012
    • Created, introduced, and implemented next-generation calculation engines for a privately-owned company that specializes in fee billing, revenue, and commission management products for investment banks, asset management firms, fund administrators, and custodians.
    • Authored detailed fee overview papers that became standard company resources.
    • Created a sophisticated and fully customized Microsoft SharePoint 2010 knowledge base; mentored junior members.
    Technologies: Matlab, .NET, C#, F#, WCF, WinForms, DevEx, NUnit, Oracle PL/SQL, ASP.NET, Ruby, TeamCity, JIRA, SharePoint, Entity Framework, IronPython, Workflow Engines, SVN
  • Senior Architect Consultant
    Deutsche Bank/DWS
    2011 - 2011
    • Designed and implemented a .NET/C# API for Deutsche Bank’s Sungard Martini that proved critical to the success of several statistical and data analytical tools utilized by the firm’s asset management divisions.
    • Managed the full project lifecycle as a senior-level developer.
    Technologies: C#, C++, Java, R, Python, Swig
  • Quantitative Developer
    Thetaris
    2011 - 2011
    • Provided comprehensive analysis and improvement recommendations for an Excel analytics add-on for one of the leading analytics companies in Germany.
    Technologies: .NET, C#, VSTO
  • Senior Consultant in Emerging Markets IT
    UBS AG
    2010 - 2010
    • Directed and led the Emerging Markets IT team in Singapore to build several high-profile technology solutions that benefited the firm’s risk management and regulatory reporting functions.
    • Customized .NET data retrieval feeds to aggregate pricing information from Reuters that dramatically reduced the time required to calculate market risk.
    Technologies: C#, WPF, WinForms, MS SQL Server, Entity Model
  • Senior Consultant in Commodities IT
    Credit Suisse
    2009 - 2010
    • Executed Credit Suisse’s transition from a legacy Excel-based risk management system to a robust C#-based platform that increased data analysis and pricing efficiency for the investment banking department.
    • Evaluated and tested artificial intelligence (AI) solutions designed to identify and automatically correct erroneous market data.
    • Liased between the global market data team and the technology development team to solve problems.
    Technologies: VBA, SQL, C#, SharePoint
  • Quantitative Architect
    Citibank
    2009 - 2009
    • Architected and implemented a tool for Citibank’s Private Bank that enabled bankers to recommend re-allocations and risk optimization strategies to clients in real time.
    • Successfully reduced the total production time required to generate detailed financial performance reports to minutes from days by automating data extractions from internal sources and Bloomberg pricing models.
    Technologies: Java, Matlab, Excel, PowerPoint, Oracle PL/SQL, MS SQL Server
  • Quantitative Developer, FICC
    Goldman Sachs
    2006 - 2007
    • Served as lead architect and builder of Goldman Sachs’ “Equity Quote Tool” pricing engine.
    • Co-designed the web interface, parallel grid computing platform, and distributed databases.
    • Programmed the primary logic that drove the core functionality of several pricing models.
    • Co-formulated the overall vision and strategy to implement the tool with front office traders.
    Technologies: C++, Java, VBA
  • Quantitative Developer
    Mitsubishi UFJ
    2006 - 2006
    • Developed various tools for the inflation bonds desk.
    Technologies: Java, SQL, VBA, Excel
  • Quantitative Developer
    J.P. Morgan
    2004 - 2005
    • Designed and implemented backtesting of various algorithmic trading models.
    • Conducted extensive reporting for the structured portfolio desk.
    Technologies: C#, Java, VBA, SQL
  • Quantitative Developer
    Bank of America
    2004 - 2004
    • Implemented various interest rate models.
    Technologies: VBA, Bloomberg, SQL
Experience
  • Spearian for Excel (Development)

    Flagship Excel add-on enhancing Excel's analytical library.

  • Spearian for Outlook (Development)

    Boosts the users' cognitive abilities to unimaginable levels thanks to the state-of-the-art machine learning and artificial intelligence algorithms.

  • Portfolio Rebalancing Optimizer (Development)

    Back-tested and fine-tuned the JPM algo trading team's portfolio rebalancing optimizer. The Apama-based engine used stochastic calculus and optimization to determine the optimal schedule for when and what to trade to minimize the market impact.

  • Pairs Trading Engine (Development)

    Back-tested and fine-tuned the JPM algo trading team's futures and stocks pairs trading engine.

  • Financial Analytics (Development)

    Actively participated in the enhancements of the existing analytics (derivatives and portfolio analytics) libraries of major investment banks and other players.

  • Automated Testing (Development)

    For Phonak, a leading hearing-aid producer meeting the most rigorous medical devices quality standards and thus having one of the best automated testing teams, architected and implemented an early warning automated testing system using extensively customized TeamCity, NDepend, NUnit, MySQL, and SQL Server 2012.

  • Fees Calculation Engine (Development)

    Architected and implemented a prototype of the next-generation calculation engine for management and performance fees for quartal financial services both in PL/SQL and .NET (C# and F#) enabling ultra-fast calculation of the fees with its naturally rich API and an extensive library of test cases and fee, prorating, and other algorithms.

  • Private Banking Decision Support System (Development)

    Architected and implemented a decision support system used by all private bankers for Citibank, enabling the bankers to analyze the present holdings of their clients and propose modifications using various financial models and extensive data mining and charting support.

  • Weather Forecasting Decision Support System (Development)

    Implemented for Czech Hydrometeorological Institute, a decision support system for long-term and mid-term weather forecasting.

  • Electric Grid Decision Support System (Development)

    While studying in Berlin, worked on T-Systems' decision support system for the RWE's electricity grid.

  • SharePoint Knowledge Base (Development)

    Architected a fully customized SharePoint 2010-based knowledge base for quartal financial solutions and provided extensive contents for it.

  • Smartscuit.com (Development)

    Financial markets crystal ball showcasing Jiri's big data skills.

  • Financial Market Data (Development)

    Extensive experience with Bloomerg, DataStream, and Reuters market data and proprietary investment banking market data messaging systems, using a variety of SQL and NO SQL databases and caching technologies such as Gemfire Gemstone.

  • Market Data Tickers Universe (Development)

    Delivered a rules engine for automatic translation of the tickers between Reuters, DataStream, and Bloomberg.

  • Mobile Solutions (Development)

    For bank Julius Baer, delivered an ahead-of-time prototype of real-time proprietary news distributions for mobile devices.

  • Reporting (Development)

    For Bank Julius Baer, architected and developed the most intuitive and user-friendly activity tracking solution: entry, analysis and reporting.

  • Risk Management Systems (Development)

    At Credit Suisse, co-responsible for the risk management system of the commodities desk for which had substantial computing farm involvement.

  • Risk Aggregation Systems (Development)

    Delivered a risk aggregation engine for the UBS emerging markets desk.

  • Trading Systems (Development)

    For DB, delivered a prototype of a C# API for Martini API and architected a bridge for Martini source feeds.

  • Trading Tools (Development)

    Responsible for the equity quote tool for Goldman Sachs, which enabled pricing and placing trades.

Skills
  • Languages
    T-SQL, SQL, HTML5, CSS3, C#, Python, JavaScript, Oracle PL/SQL, R, Java
  • Frameworks
    Entity Framework, ASP.NET, Kendo UI, NUnit, Kendo MVC, .NET
  • Libraries/APIs
    jQuery, SciPy, NumPy
  • Tools
    Git, PyCharm, IntelliJ IDEA, Visual Studio, Excel-DNA
  • Paradigms
    MVC, Scrum, Agile Software Testing, Concurrent Programming, Inversion of control, Continuous Integration, Agile Software Development
  • Platforms
    Windows, Linux, Windows Phone, Android, iOS
  • Storage
    NoSQL, MySQL, Cassandra
  • Misc
    Telerik
Education
  • Master of Computer Science degree in Mathematics and Ops Research
    Charles University - Prague, Czech Republic
    1996 - 2002
  • Bachelor of Arts degree in Economics and Finance
    Charles University - Prague, Czech Republic
    1996 - 2001
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