SR. BACK-END .NET DEVELOPERREMOTE - prefers NJ/NYC candidatesCONTRACTApex Systems is seeking a strong Back-end.NET developer who takes pride in developing C# and synchronization processes for an innovative technology client! The position also includes.Net, Web APIs, and JSON/XML work.Required Skills:C# / Web API Developer Minimum 5 years of experience in ASP.NET technologyMinimum 3 years working with JSON/XML and RESTful APIs in a production environment.Using ASP.NET Web API to develop web services.Solid understanding of object-oriented programming techniques (Inheritance, interfacing, extensions, etc).Experienced in writing test cases and performing unit testing/functional testing.Used DevOps and CI/CD in previous work experience.Developed software in SCRUM environment using Agile methodologies.Solid understanding of async/await and the TPL library.Involved in SDLC process.Personality Passion for programming in general, rather than a specific languageAbility to learn new, emerging technologiesYou have a solid general understanding of application components, what happens on the front end, what happens on the back end.Qualifications:Great multi-tasker Possess strong troubleshooting, code optimization and refactoring skillsNice to haves Multi-threaded programming experience in both procedural and functional paradigmsFamiliarity working with or implementing ElasticsearchExperience developing and maintaining cloud based solutions in AWS or AzureInterest in performanceProduction experience with SPA UI technologies like Angular or React