David

Participated in all aspects of the agile product development life cycle from design to delivery.  Worked closely with the client, product managers, infrastructure, and development teams to help deliver innovative, world-class SaaS solutions.

• Worked within Agile & Scrum development methodologies.
• Developed Healthcare app services.

Environment: .NET Core 3.1, MySQL, Entity Framework Core, Docker, Azure DevOps, AWS (SQS, SNS, CloudWatch, Lambda Functions, ECS, Dynamo), PubNub, Vonage, Datadog.

He worked on several projects as a full-stack engineer in a new brand Real Estate SaaS 20+ person project.  Worked as a full-stack engineer in a traffic Accident Data Monitor application (Road Observatory). He also Developed a Real Estate backend application (Arg Startup)

• Participated in both backend and frontend teams (US Startup).
• Participated as the head of the development team (public initiative).
• Talent Assessment Application (US Company). Implemented Talent assessment report Dashboard (bubble, radial, node charts).

Technologies: Node, React, Typescript, Apollo, GraphQL, Redux, Next.js, PostgreSQL, Docker, Aws, Jira, Postman, VS Code, Bitbucket. .NET Core 3.1, React/Redux, Typescript, PostgreSQL, Azure, Jira, Postman, VS Code, GitHub Functions. Angular 8, Typescript, Node, JavaScript, Zingchart, Bitbucket. Entity Framework Core 2.0, JWT Auth, SignalR, iText 7 Core

Participated in the design and implementation of a large Real Estate Web application. +40-person project.  He participated in all aspects of the agile product development life cycle from design to delivery. Produced high-level and detailed design documents to meet customer requirements based on business rules.

• Worked within Agile & Scrum development methodologies.
• Worked closely with the client, product managers, infrastructure, and development teams to help deliver innovative, world-class SaaS solutions.
• Implemented backend architecture based on Test-Driven Development (TDD)
• Experience with Microsoft Azure infrastructure and proven knowledge of its service platform.
• Working knowledge of Azure Insights and App Dynamics.
• Prepared and executed Unit and Integration test plans for every feature.
• Experience in designing and Implementation Continuous Integration and Continuous Delivery environments on Azure DevOps/VSTS and Octopus.
  ● Performed analysis and estimation for different components and functional modules required by the customer.

Environment: C# .NET Framework 4.5, .NET Core 2.2, React/Redux, Node, SQL Server 2016, TFS, Octopus, Git/GitHub, Box, Cloudinary, Entity Framework, Azure Services (App Insights), Jira, Slack, Trello, Teams, ZenHub, Postman, Swagger, Elmah, VS 2019. MongoDB, Angular, ArcGIS

Designed and developed applications using the most popular technology stacks. Actively participated in the development of the Presentation Layer, BAL (Business Logic Layer), DLA (Data Access Layer), and various other tiers of N-Tiers applications.

• Developed WebAPIs and Web Services for communication between frontend and backend servers.
• Involved in the Interface design of web applications from the Design process to Implementation.
• Designed and developed interfaces and abstract classes to construct the business logic using Object Oriented Concepts.
• Used Model View Controller (MVC) design pattern to develop a sophisticated web application, ASP.NET with C# as code behind AngularJS, which is used for client-side validation.
• Implemented Business, Presentation, Logic, and Data layers of several web and desktop applications. Used C#.Net web application on SQL for database connectivity.
• Involved in testing using the test-cases test cases using NUnit framework.
• Developed a universal push notification platform with Firebase Cloud Messaging that featured user targeting, schedulable notifications, and reliable performance.

Environment: .NET Framework 4, C#, .NET Core 1.1/2.2  Python, Angular, ASP.NET, T-SQL, LINQ to SQL, WCF, SSRS, SQL Server 2008/12, PostgreSQL, MySQL, MongoDB, Cassandra, TFS, GIT, IIS, HTML, CSS, Bootstrap, JavaScript, jQuery, AJAX, Entity Framework, AWS & Azure Services, Firebase, SignalR, RabbitMQ.

Designed and implemented data acquisition using Big Data processing techniques and tools in a fast and efficient way. Integrated social network architecture with Big Data technology.

• Created ETL jobs to load Twitter posts to JSON data and server data into Cassandra and transported Cassandra into the Data Warehouse and Amazon S3.
• Extracted data from NoSQL databases, Web sources, or APIs Backend Developer.
• Created reports and dashboards using structured and unstructured data.

Environment: C/C++/C#, Java, Maven 2, Jersey, Rest, RabbitMQ, Aws, Linux, Python, Cassandra, MongoDB, Redis, HBase, .NET, Spring, Play, Git, Amazon S3.

Worked with Business Analysts in gathering requirements of the project and participated in design discussions and architectural reviews. Modeled industrial manufacturing processes.

• Gained experience with the Siemens Preactor AS/AP Solution.
• Designed complex real-time schedulers with multiple resources.
• Designed and developed web forms for interfaces using ASP.NET, C#, HTML, CSS.
• Designed Web Forms, User Controls, and AJAX Web forms using ASP.NET 3.0/3.5.
• Extensively worked with .NET Web Site Administration Tools, like ASP.NET, to create Roles, Login Controls, Authentication and Authorization for Site Security.
• Implemented design patterns using C# .NET and User controls in WinForms.
• Performed design and development of WinForms applications using C# .NET with separate UI logic and Business Layer.
• Created and consumed web services & Used AJAX calls which interact with the Business Layer.
• Developed security modules that are allowing the administrators grant access rights to users based on their credentials.
• Used XML intensively to bind the data to the Web Controls, Data manipulation to store data.
• Developed SQL queries and stored procedures to fetch data as per the business requirements with tuning techniques.
• Developed many T-SQL queries to fetch data as per the business requirements with proper tuning techniques.

Environment: Siemens Preactor AS/AP Solution, .NET Framework 4, C#, ActiveX, ASP.NET MVC, ADO.NET, T-SQL, LINQ to SQL, WCF, SSRS, VS 2010/2015, SQL Server 2008/12, NUnit Test, TFS, SVN, IIS, Web Services, HTML, XML, CSS, Bootstrap, JavaScript, jQuery, AJAX, Entity Framework| Azure Services.

• Software Developer at Enration (2011-2012)
• PhD Candidate at Conicet (2006-2011)
• IT Support at Universidad Nacional del Sur (2004-2006)