Senior .NET Developer

We are seeking a Senior .NET Developer to lead and contribute to the design, development, and optimization of enterprise-grade web and client-server applications. This role requires a proactive problem-solver with modern .NET expertise, deep experience in cloud-first architectures, and a passion for driving technical innovation.

You will collaborate with cross-functional teams, mentor junior developers, and influence architectural decisions. The ideal candidate is well-versed in modern .NET ecosystems, cloud technologies (AWS and Azure), DevOps pipelines, and secure, scalable API design.

This is a hybrid position which will require a minimum of 2 days per week on site at the corporate Woodbury NY

location (Long Island - Nassau county 11797).

Key Responsibilities

Lead the

design and development

of scalable, secure, and high-performance applications using modern Microsoft technologies. Collaborate with Solution Architects and Business Analysts on

architecture, requirements, and planning Drive modernization initiatives by

refactoring legacy applications

to modern frameworks (.NET 8+, cloud-native). Build and maintain

RESTful APIs , web applications, and background services using .NET Core / .NET 8. Champion

DevOps best practices , including CI/CD automation, infrastructure as code, and testing pipelines. Guide and mentor junior team members, conduct code reviews, and ensure adherence to coding standards. Investigate emerging technologies to propose and implement improvements to software architecture and development processes. Ensure compliance with industry standards such as

OWASP, HIPAA, PCI-DSS, and ISO 27001 . Required Qualifications

Deep expertise in

.NET Core / .NET 6+ / .NET 8 ,

C# , and modern design patterns (e.g., Dependency Injection, CQRS, Clean Architecture). Proven experience with

REST APIs ,

microservices , and

asynchronous programming . Strong front-end experience with

Angular (v12+ or later) ,

TypeScript ,

HTML5/CSS3 ,

Bootstrap , and

JavaScript frameworks . Advanced experience with

Entity Framework Core ,

LINQ ,

SQL Server , and designing performant database structures. Experience with

Azure

services (App Services, Functions, Key Vault, SQL DB, Azure DevOps, etc.) or AWS equivalent. Familiar with containerization tools such as

Docker

and orchestration platforms like

Kubernetes

is a strong plus. Experience working with

Salesforce APIs

or platform is a plus. Knowledge of secure coding standards, authentication protocols (OAuth2, OpenID Connect), and compliance frameworks. Requires excellent verbal and written communication skills. Must have the ability to provide the "basic" explanation of technology for nontechnical managers, directors and above. Demonstrates ownership, manages multiple deliverables simultaneously by adjusting priorities and eliminating roadblocks. Demonstrates character, integrity and ethical values. Possesses a customer-oriented service attitude. Adheres to the policies regarding acceptable behavior. This is a hybrid position that will require 2-3 days on site at our Nassau county NY location Education and Experience

10+ years

of hands-on experience in software development with .NET technologies. Bachelor or Master's degree in Computer Science, Software Engineering, or related field strongly preferred. Industry technical certifications a plus. Benefits

Your hard work and professional dedication will be rewarded with a competitive compensation and benefits package, including:

Medical coverage Dental coverage 401(k) Plus more! Build a rewarding career with an industry leader!

Salary range is $110.000.00 - $120,000.00 per year.

We are proud to be an equal opportunity employer and are committed to a drug and alcohol free workplace.