Denis Sidelnikov
Maspeth,NY
Summary
Highly skilled full stack ASP.NET/SharePoint/SQL developer with 12+ years of experience in web application design, development, and maintenance. Proficient in ASP.NET Blazor, MVC, and Core frameworks, C#, SharePoint, and SQL Server. Solid understanding of front-end technologies such as HTML, CSS, and JavaScript. Adept at creating scalable applications, implementing RESTful services, and optimizing database performance. Demonstrates excellent problem-solving abilities, attention to detail, and a proven track record of delivering high-quality software solutions adhering to deadlines.
Overview
15
15
years of professional experience
1
1
Certification
Work History
Information Systems – Application Development and BI Team Leader
LaGuardia Community College
7 2018 - Current
- Provided comprehensive instructions and guidance to a team of Application and SQL developers
- Designed, developed, and maintained campuswide web applications using ASP.NET Blazor, MVC and ASP.NET Core framework
- Redeveloped legacy ASP.NET applications into Blazor, significantly improving performance and user experience
- Implemented and optimized RESTful web services
- Developed complex SQL queries, stored procedures, and functions to support application functionality and data retrieval
- Collaborated with front-end developers to integrate user-facing elements with server-side logic using HTML, CSS, and JavaScript
- Conducted thorough testing and debugging to ensure application stability and performance
- Led a team of BI developers in designing and implementing data warehousing solutions
- Oversaw the development and execution of ETL processes from various heterogeneous sources using SQL Server Integration Services (SSIS), improving data accuracy and consistency
- Designed data models and developed complex SQL queries to support business reporting and analytics
- Conducted performance tuning and optimization of SQL queries and database structures, reducing query execution times
- Created and maintained interactive dashboards and reports using Power BI and SQL Server Reporting Services (SSRS), providing real-time insights to stakeholders
- Facilitated effective communication between stakeholders and the BI team, ensuring alignment with business goals and objectives
- Developed custom ASP.NET C# applications for SharePoint integration.
Information Systems – SharePoint Developer / Database Programmer
LaGuardia Community College
09.2014 - 07.2018
- Configured and deployed Development, Staging and Production environments of SharePoint Server 2010 and 2013
- Created various SSRS Reports involving a variety of features such as Reports, Charts, Filters, Sub-Reports, Drill-Down, Drill-Through, Multi-valued parameters, etc
- Created Business Intelligence Reports using SSIS, SSRS and T-SQL Programming and published them in SharePoint environment for various College applications
- Extracted and Transformed data (ETL) from various heterogeneous sources and creating packages using SSIS, Import, Export Data and Bulk Insert
- Created and administered Data Warehouse in MS SQL Server
- Migrated multiple site collection from SharePoint 2010 to SharePoint 2013 farm
- Created custom ASP.NET C# solutions for SharePoint
- Automated process by creating jobs and error reporting using Alerts, SQL Mail Agent, FTP and SMTP.
Network Administration - SharePoint Developer/ Administrator
LaGuardia Community College
06.2012 - 09.2014
- Designed, developed and support Student Engagement Management System, ASP.NET based CRM application that have been used by the entire college
- Designed, developed and support Scholarship Submission application, used by all LaGuardia faculty to submit their yearly achievements
- Designed and developed application to replace all paper forms in Registrar office
- Create custom SQL Server Reporting Services (SSRS) reports to be displayed and integrated in a SharePoint
- Schedule daily Extract Transform Load data to from SharePoint to MS SQL using SQL Server Integration Services (SSIS)
- Configured and deployed Development, Staging and Production environments of SharePoint Server
- Installed and administered SQL Server High Availability and Disaster Recovery for SharePoint farm
- Deploy and administer SharePoint intranets on campus
- Apply custom branding to an Intranet sites using CSS and HTML
- Maintain the servers and services of the servers in the SharePoint Environment
- Developed and deployed custom C#, ASP.NET web parts to SharePoint sites.
Network Administration – Tech Support
LaGuardia Community College
09.2009 - 06.2012
- Engineered and administered Microsoft SharePoint farm
- Developed small web base applications on SharePoint platform
- Create and route CUNYfirst CRM tickets
- Assist users with CUNYfirst related issues
- Provide technical support to over 3000 users (students, faculty and stuff) via telephone, remote control and hands-on support
- Assisted users with campus-wide e-mail clients – IP and port configuring, archiving, calendar sharing, etc
- Performed installation and configuring of licensed software on IBM and Macintosh such as: Adobe Creative Suits, Crystal Report, SPSS v20, etc
- Used Symantec Ghost to backup user data, create image files and restore lost files
- Managed user accounts, printers, reserving IP addresses, and shared folders through Active Directory (Microsoft Windows Server 2003 R2 and 2008 R1)
- Deployed new computers on campus and secure them with Group Policy to set restrictions.
Education
Master of Science in Information Systems with Concentration in Data Analytics -
Baruch College
New York, NYBachelor’s Degree in Computer Systems Technology - undefined
New York College of Technology
Brooklyn, NYAssociate in Applied Science Degree - Computer Operations
LaGuardia Community College
Long Island City, NYSkills
Team Supervision
Teamwork and Collaboration
Work Planning
Team motivation
Mentoring
Technical Support
Analytical Thinking
Self Motivation
Organizational Skills
Analytical Skills
Task Prioritization
Certification
MCPS: Microsoft Certified Professional, 05/2015, License F332-4352
Languages
English
Russian
Awards
CUNY Excellence in Technology Award, 2018, Connect-to-Completion; an iPASS Advisement and Student Success System
Timeline
Information Systems – SharePoint Developer / Database Programmer
LaGuardia Community College
09.2014 - 07.2018
Network Administration - SharePoint Developer/ Administrator
LaGuardia Community College
06.2012 - 09.2014
Network Administration – Tech Support
LaGuardia Community College
09.2009 - 06.2012
Information Systems – Application Development and BI Team Leader
LaGuardia Community College
7 2018 - Current
Master of Science in Information Systems with Concentration in Data Analytics -
Baruch College
Bachelor’s Degree in Computer Systems Technology - undefined
New York College of Technology
Associate in Applied Science Degree - Computer Operations
LaGuardia Community College
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