Christopher Yewchuk Email & Phone Number

New York City, New York, Us

• Full-service development firm providing full-stack, custom Internet applications across multiple verticals in corporate, start-up, and remote environments.• System design, development, deployment, and support of new systems and modernization of legacy systems using secure, cloud-based technologies.• Clients include: Bloomberg, Wells Fargo, United Way, Worldpay, Ingenico ePayments, Martha Stewart Living, Costco, The Home Depot, Girl Scouts, EasyClosetsRecent technologies: Microsoft .NET, AWS, C#, JavaScript, Docker, SQL Server, Web Services, Salesforce, Lightning Web Components, Entity Framework, GitHub, JSON, Cloud Migrations, Amazon EC2, Amazon RDS, Amazon S3, EF Core, Amazon SES, Linux

Phoenix, Az, Us

• Full-stack design, development, deployment, and support of several web-based applications to facilitate several government-funded programs. Currently in use by thousands of institutions daily.• Reduced inherent time-cost and error potential of existing hard-copy applications and analysis of complex qualification and renewal conditions, thereby allowing a higher number of applicants with reduced personnel requirements.• Worked directly with business units to establish requirements and implement custom workflows.• Technologies include Microsoft .NET, ASP, C#, jQuery, log4net, IIS, SQL Server, JavaScript, AJAX, CSS, JSON, Parsley, SVN, Git, Amazon EC2 Cloud Server, REST, SOAP, UI, UX, Visual Studio, Two-Factor Authentication

New York, Ny, Us

• Full-stack development of several internal accounting modules to facilitate back-office accounting operations using both Aura and Lightning Web Components.• Designed Flows, LWC, SOQL, and Visualforce pages to implement on-demand PDF broker commission reports within Community Cloud.• Development of back-end Apex classes to integrate the USPS Developer API, providing address validation and formatting to mailing addresses entered into various high-traffic Community Cloud forms.• Technologies include: SFDX, Apex, SOQL, Jest, Lightning Web Components (LWC), Aura, Flows.

• Full-stack design, development, deployment, and support of a secure, web-based portal facilitating a government program to provide monetary assistance towards the cost of funerals for families affected by COVID-19.• Account-based portal used by applicants, county, funeral homes, and United Way administrators in various capacities providing end-to-end processing and management of all applications, distributing over $1M to date.• Technologies include: .NET, C#, AWS, Docker, SQL Server RDS, EC2, S3, EF Core, Amazon SES, JSON, Custom async HTTP Handlers (ASHX), ASP.NET Web Services, asynchronous .NET background tasks.

New York, Ny, Us

• Full-stack Bloomberg terminal development within the internal applications group, from DB design/implementation, offline and online service development, front-end UI/UX, and integration with back-end services.• Migration of legacy Windows-based .NET Framework/SQL Server SP-based services to .NET Core/Linux/Dapper, as part of Windows->Linux migration efforts; optimization of existing services to accommodate higher demand.• API Design & implementation for high-volume internal services & deployment to Openstack Linux clusters.• Designed and implemented an internal Product Hierarchy Administration Tool (PHAT ) for management of Bloomberg's entire product offering and associated human resources.• Technologies include: Agile, RAPID (Bloomberg Terminal framework), JavaScript, TypeScript, C#, .NET Core, SQL Server, PostgreSQL, COMDB2, .NET Framework & .NET Core Webservices, Dapper, Entity Framework, Enterprise Github, Jenkins CI/CD pipelines, Jira.

Puteaux, Île-De-France, Fr

• Full-stack design, development, deployment, and support of a web-based application to provide qualification, submission, and management of multi-currency merchant account applications by direct integration with Wells Fargo merchant systems, conforming to strict software requirements of large financial services company• Worked with Wells Fargo Data Transmission Services team throughout development, certification and maintenance.• Allowed client to eliminate sensitive hard-copies, reduce errors, and increase application turnaround time time.• Technologies include Microsoft .NET, ASP, C#, IIS, Entity Framework, log4net, SQL Server, Bootstrap, XML, SFTP, JavaScript, CSS, SVN, AWS EC2 Cloud Server Hosting, FinTech, REST, SOAP, Banking & Financial Systems, Payment Systems, two-factor authentication, Forms, UI, UX, Visual Studio

• Development, maintenance, monitoring, and optimization of high-volume B2C and B2B web sites, as well as proprietary in-house Management Information Systems (MIS).• Implementation and management of software development methodologies to accommodate growth within development team (concurrent development, version control, test environments, etc.) from infancy to acquisition.• Integration of all site usage, transactions, and email correspondence to Salesforce, for ease of reporting and maintenance by marketing team. Utilized Force.com SOAP API and REST Web Services with Apex and SOQL.• Technologies include Microsoft .NET, ASP, VB.NET, C#, IIS, Entity Framework, log4net, SQL Server 2015, Bootstrap, XML, SFTP, JavaScript, CSS, SVN, Rackspace Cloud Server Hosting, FinTech, REST, SOAP, Banking & Financial Systems, Payment Systems, two-factor authentication, Forms, TLS 1.2, SSL, Salesforce, Visualforce, Apex, SOQL, Level 1, Level 2, and Level 3 Credit Card Transactions, Marketo, JSON, Affirm Payments, Web Services

• Conception, design, and development lead of a suite of wireless enterprise connectivity products• Used CDO, ASP, and WML to integrate MS Exchange with all mobile browsers including Phone.com, Nokia, and Ericsson• Gained invaluable experience in the process of taking a product from conception to market in a high paced, competitive industry

• Developed user & system administration modules using Enterprise Java Beans, Java Server Pages, and JavaScript• Developed a comprehensive financial web site including personal stock portfolio tracking and real-time content feeds

Ca

• Developed an object-oriented Police Information System using Objective C and OpenStep APIs• Member of the front-end development team, migrating a large law enforcement application from the NeXT platform to OpenStep

Toronto, Ontario, Ca

• Developed a Y2K-compliant Intranet-based document distribution system using client and server-side JavaScript and Netscape LiveWire• Developed an Intranet-based mailing list manager using Java Servlets and JDBC

New York, Ny, Us

• Coded, restructured, and implemented a 1,500 page corporate intranet and trained staff on usage of site• Researched and implemented a video teleconferencing solution to increase inter-group communication and provided on-site presentations to demonstrate its usage• Active member of Internet/Intranet development and remote access solution committees

• Involved in programming and design of company's home page • Maintained and supported Novell and Microsoft LAN environments