Senior Fullstack .NET Engineer
3B Staffing LLC
Senior Fullstack .NET Engineer (Production Support Team) MUST HAVE:
- Debugging application on a Production Server
- We need only support, maintenance and heavy debugging of existing applications
- Very Strong with Classic ASP.NET AND SQL
- Must be over 70% PRODUCTION SUPPORT In Current Job
- We do not want greenfield developers (development of new features or applications).
- Our Fortune 500 client is in the process of assembling a large team of Senior Full Stack .NET Engineers, who will be integral to applications operations and be part of a dynamic Production Support Team (L3).
- The primary responsibilities will involve collaborating to identify and resolve issues within existing, legacy mission-critical, ASP.Net / MVC / SQL Server 2008-2019 applications.
- This will encompass manual debugging, manual troubleshooting and the continuous maintenance of application systems, programs, services, and other associated software components, tailored to meet the demands of the enterprise, particularly addressing tasks of moderate to high complexity.
- There will be no new development involved just the enhancement, maintenance, and resolution of complex issues within existing legacy .NET applications.
- Must be a fundamentally sound and skilled Full Stack .NET Developer comfortable supporting applications that have been previously developed, demonstrating the capability to learn different systems and code bases quickly.
- Essential qualifications for this role include a minimum of 10 years of hands-on experience working in the US as a Full Stack .NET Developer.
- Recent (most recent 5 years) and demonstrable expertise in the manual debugging and troubleshooting of web-based applications in production, as well as a demonstrated ability to perform maintenance and enhancements on existing/legacy applications using: Net 4.0/3.5/2.9, MVC 4.0 - 5.0, Asp.net Core 2.0, Kendo UI, ADO.Net 4.0/3.5/2.0/1.1, LINQ, Entity, C#, N-Tier, Java Scripts, jQuery, HTML, CSS, WCF, WPF and WCF Services, ASP.Net Web Forms and MVC, ASP.Net State Management, ASP.Net Caching, ASP.Net Web Applications, MS SQL Server 2008-2019, T-SQL, Stored Procedures, Joins, Tables, Functions, dnSpy, CLR
- Expert-level experience resolving: Connectivity issues, Access Issues, performance Issues, storage issues, and data retrieval issues.
- Strong ability to learn, analyze, and resolve issues surrounding multiple applications with different code bases
- Manual Debugging without using Visual Studio
- ServiceDesk ticketing system experience a plus
Vacancy posted 2 days ago
Similar jobs that could be interesting for youBased on the Senior Fullstack .NET Engineer in New York, NY vacancy
- ...technology staffing firm is looking for an experienced Software Engineer to handle full development life cycle activities including analysis... ...candidates should have over 6 years of experience with C#, .NET, and REST service architectures, and be capable of integrating third...FullstackSenior
SourcePro Search
New York, NY1 day ago $130k - $180k
...Neuberger Berman is seeking a Senior Full-Stack Developer (.NET/C#) in New York City to design and operate high-performance applications for their Private Wealth business. The ideal candidate will have over 6 years of experience in software development with strong expertise...FullstackSeniorWork at officeNeuberger Berman
New York, NY12 hours ago- A leading technology firm located in New York is looking for a candidate with over 6 years of experience in product development, specifically in consumer software. The ideal candidate will demonstrate strong knowledge of front-end architecture patterns, state management...FullstackSenior
- NTT DATA, Inc. is seeking a .NET Full Stack Developer for an onsite hybrid position in King Of Prussia, Pennsylvania. The ideal candidate should have over 7 years of experience in software development, particularly with C#, SQL, and front-end frameworks like Angular. This...FullstackSenior
- Morgan Stanley is seeking a Web Services Developer (.NET/C#) for the Wealth Management technology team in New York. You will build and support FA-facing websites and applications, delivering technology solutions for financial advisors and clients. The role emphasizes ownership...FullstackSenior
$60k - $135k
Wipro Technologies is hiring a .Net Full Stack Developer with a hybrid work model in New York. The ideal candidate should have over 6 years of experience in full-stack application development using C# .NET, Angular, and microservices. Compensation ranges from $60,000 to...FullstackSeniorContract work- EPAM Systems, Inc. is seeking a Senior .NET Full-Stack Engineer with AI expertise to join our innovation team, driving feature development, research and the adoption of AI-enabled solutions within a high-impact project. The role supports remote work within Ukraine and offers...FullstackSeniorRemote jobRelocationFlexible hours
- Authority Partners is seeking a Senior Full Stack Developer to design, architect, and develop scalable, cloud-native solutions with .NET 8+ and Angular. You will own end-to-end development, collaborating with Solution Architects to ensure seamless backend/frontend integration...FullstackSenior
- Solveva is seeking a Senior .NET Full-stack Engineer to contribute to the modernization of an exposure-gathering and portfolio risk-modeling solution in Georgia, USA. You will play a key role in designing and delivering a scalable, cloud-ready web application while working...FullstackSenior
- .NET Fullstack Senior Developer - HYBRID Date: May 11, 2026 Location: Parispanny, NJ, US Company: NTT DATA Services We are currently seeking... ..., Azure AD). Experience with Google Cloud Platform (App Engine, Cloud Functions, Firestore, Cloud Build, Cloud Armor). Demonstrated...FullstackSeniorTemporary work
- dadan is seeking a Senior Full Stack Developer (.NET) to join our growing team in Jordan. The role demands deep expertise in ASP.NET and .NET Core, and the ability to work independently as well as within a team. The ideal candidate has 5-10 years of software development...FullstackSenior
- 6+ years of experience with product development and architecture of consumer software and applications Strong understanding of front-end component architectural patterns Good understanding of front-end state management with tools like NGRX [MUST] Strong understanding of...FullstackSeniorRemote job
- A technology solutions firm seeks a Sr. .NET Full Stack Developer with Angular to design and develop complex web applications. The ideal candidate should have over 8 years of experience in full-stack development, with expertise in C#, ASP.NET, and Angular. A Bachelor’s...FullstackSenior
- ...Role: Senior .NET Full Stack Developer Location: New York, NY (Onsite) Duration: Long Term Contract Strong experience in Angular 15+, .NET/.NET Core, C#, ASP.NET, HTML, CSS, JavaScript, SQL Server, UI/UX, responsive design, authentication/authorization...FullstackSeniorLong term contract
3B Staffing LLC
New York, NY2 days ago - ...powered advice on this job and more exclusive features. Job Title: Senior Dot Net Developer (Payment Systems) Location: Remote Duration: 7... ...to set job alerts for “Dotnet Developer” roles. Full Stack Engineer (L5), N-Tech Software Engineering United States $100,000.00-$...FullstackSeniorContract workRemote work
- ...Senior .NET Full Stack Developer with Strong : ANGULAR 15 and above version Long term 3 /+ Years of Contract with possibility of extension PLEASE NOTE: Only candidates that currently live within commuting distance of New York City will be considered. Please do...FullstackSeniorLong term contractWork at officeNight shift
Anveta
New York, NY3 days ago - Datalab is looking for a fullstack engineer to shape interfaces and infrastructure for document processing models. You will work closely with founders and the team to enhance performance and accessibility for users. The ideal candidate will have 5+ years of experience...FullstackSenior
- A technology firm in New York City is seeking a Senior Fullstack Engineer to build foundational product features driving user acquisition and growth. The role involves full-stack development using React, TypeScript, Python, and Go, and requires a strong product intuition...FullstackSenior
- Ein innovatives Unternehmen in der Ticketing-Branche sucht einen Softwareentwickler für das Fulfillment-Team in den USA. Die Rolle umfasst die Entwicklung und Implementierung von Softwarelösungen für Ticketing und Versand. Erforderlich sind Kenntnisse in Node.js, TypeScript...FullstackSeniorRemote job
- United States Digital Space LLC sucht einen erfahrenen Softwareentwickler, um an internen Dashboards und externen Frontends zu arbeiten. Wir bieten eine 100% Remote-Arbeitsstelle mit flexiblen Arbeitszeiten und einem klaren Karrierepfad. Das Gehalt liegt zwischen 55.000...FullstackSeniorRemote job
- Manifest OS is seeking a backend-focused fullstack developer to join their NYC team. This role involves designing scalable backend architectures and implementing AI-powered workflows in a high-trust environment. The ideal candidate has 7+ years of fullstack TypeScript experience...FullstackSenior
- Manifestos in New York is looking for an experienced Senior Fullstack Developer. The ideal candidate will have 7+ years of development experience, specializing in Node.js and TypeScript, with a strong focus on AI integration. This role involves building client portals...FullstackSenior
- ...We are looking for a Staff or Senior Fullstack Engineer to work on developing and scaling the the company's platform from the frontend, CLI, and API, to billing, security, and integrations. Location: NY We want someone who can take ownership of key features and drive...FullstackSenior
Spartan Technologies
New York, NY3 days ago - ...involves transitioning from a legacy WPF .NET application to a scalable, cloud‑ready... ...The existing system will be completely re‑engineered, offering a unique opportunity to shape a... ...its very beginning. About the role As a Senior .NET Full-stack Engineer, you will play a...FullstackSeniorWork experience placementRemote work
- A US-based software outsourcing company is seeking experienced software developers with over 4 years in .NET and C#. You will work with top global corporations and be involved in significant industry projects. The company promotes an inclusive, supportive work culture,...Senior
- A leading technology solutions provider is seeking a Mid-Senior Level Software Developer for a 100% remote contract role. The ideal candidate will have strong experience with .NET, C#, and ASP.NET along with hands-on skills in integrating Siemens Opcenter (Camstar) within...SeniorRemote jobHourly payContract work
$95.77k - $133.63k
Citi is looking for a Senior Fullstack Developer in New York, NY. This hybrid position involves participation in application systems development and problem-solving within the Financial Services industry. The ideal candidate has 2-5 years of experience programming in Java...FullstackSenior- VTekis Consulting LLP is looking for a seasoned professional in New York to lead business analysis and software development projects, particularly in trading systems. The ideal candidate will have 10+ years of relevant experience, including strong technical skills in Java...FullstackSenior
- A technology company is seeking an experienced software developer to lead the design and implementation of microservices using Spring Boot and React. The ideal candidate has 12-15+ years of development experience, strong Java and React skills, and at least 7 years with ...FullstackSeniorRemote work
- Polysentry is a technology company that provides industry-leading data discovery, classification, and analysis solutions. Since 2018, Polysentry has been building and deploying mission-ready AI-based platforms that meet rapidly evolving security needs. The company’s software...FullstackSeniorFull timeRemote work
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Fullstack .NET Engineer. Be the first to apply!
Related searches
- .net developer New York, NY
- c#.net developer New York, NY
- .net engineer New York, NY
- senior c# .net software developer New York, NY
- net developer contract New York, NY
- backend .net developer New York, NY
- senior asp.net developer New York, NY
- senior net developer remote New York, NY
- full stack.net developer New York, NY
- asp net developer New York, NY