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.

Pay Transparency In order to support the Fair Compensation Strategy by the US Govt., HR Dept., clients are required to adhere to "Pay Transparency Law"; in the impacted states; that have mandated the employers to list the salary ranges in Job advertisements or postings for job opportunities and Job promotions.