Senior .Net Developer

New York City

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New York City, NY, us on site Until 9/17/2026 4+ years exp First posted July 19, 2026 Last posted July 19, 2026
Job description

DCAS's mission is to make city government work for all New Yorkers. From managing New York City’s most iconic courthouses and municipal buildings, to purchasing over $1 billion annually in goods and services for more than 80 City agencies what we do ensures that all agencies can deliver on their mission. Our reach touches every facet of city government and is instrumental to the successful day-to-day operations of the City of New York.

Our commitment to equity, effectiveness, and sustainability guides our work providing City agencies with the critical resources and support needed to succeed, including:

- Recruiting, hiring, and training City employees.
- Managing 56 public buildings.
- Acquiring, selling, and leasing City property.
- Purchasing over $1 billion in goods and services for City agencies.
- Overseeing the greenest municipal vehicle fleet in the country.
- Leading the City's efforts to reduce carbon emissions from government operations.

When you work at DCAS, you're not just working for one agency, but in service of them all. It's an opportunity to provide impactful support, quality customer service, and help protect the future of New York City for generations to come. Visit our website at nyc.gov/dcas to learn more about the work we do.

The NYC Department of Citywide Administrative Services (DCAS) is seeking a highly skilled Senior .NET Developer to design, develop, and maintain enterprise-level .NET applications. Under the leadership of the IT department, this individual will play a key role in supporting multiple projects by providing expertise in application architecture, coding, and building scalable solutions.

The selected candidate will oversee all technical aspects of the .NET application lifecycle, including development, maintenance, and performance optimization. Additionally, they will assess existing technical infrastructures, identify areas for improvement, and implement enhancements to improve system efficiency and reliability. The role also includes troubleshooting technical issues, enforcing best practices, and supporting the successful implementation of .NET-based solutions.

Under IT leadership, the Senior .NET Developer will support, enhance, and maintain existing .NET applications while assisting in the development of new enterprise-level solutions. The role focuses on back-end development, integration, and ensuring the reliability and scalability of the IT infrastructure. The candidate will also troubleshoot issues, maintain systems, and provide technical support to end-users.

Key Responsibilities Include:

- Collaborate with developers, business analysts, and IT professionals to deliver high-quality .NET solutions.
- Develop and maintain technical documentation and system roadmaps.
- Customize and integrate existing systems into the enterprise application architecture.
- Participate in deployment and provisioning activities.
- Analyze and design complex business processes and technical solutions.
- Define and implement high-level technical requirements and blueprints.
- Contribute to project scope definition, risk evaluation, and mitigation planning.
- Ensure seamless integration of applications and data sources.
- Collaborate with Project Managers to gather stakeholder feedback and refine solutions.
- Validate that solutions meet both business and technical requirements.
- Maintain a passion for designing and delivering high-quality technical solutions.

To Apply:

Please go to www.nyc.gov/careers or www.nyc.gov/ess for current NYC employees and search for Job ID # 710201.

No phone calls, faxes or personal inquiries permitted. Only those candidates under consideration will be contacted.

IT INFRASTRUCTURE ENGINEER - 95714

1. A baccalaureate degree from an accredited college in computer science, engineering or a related field and four years of satisfactory full-time experience related to datacenter engineering and operations, cloud engineering and operations, complex IT infrastructure engineering; or,

2. A baccalaureate degree from an accredited college and eight years of satisfactory full-time experience related to datacenter engineering and operations, cloud engineering and operations, complex IT infrastructure engineering; or,

3. Education and/or experience which is equivalent to "1" or "2" above.

The City of New York is an inclusive equal opportunity employer committed to recruiting and retaining a diverse workforce and providing a work environment that is free from discrimination and harassment based upon any legally protected status or protected characteristic, including but not limited to an individual's sex, race, color, ethnicity, national origin, age, religion, disability, sexual orientation, veteran status, gender identity, or pregnancy.

Compensation (from employer):
140000 – 145000 USD

About this role

Summary

Design, develop, maintain enterprise-grade .NET applications, support scalable solutions, troubleshoot, and optimize performance.

Job title

Senior .Net Developer

Experience level

senior level

Minimum experience

4+ years exp

Industry

government

Location requirements

New York City, NY; remote work not specified

Salary

$140k–$145k

Management role

No

Skills & keywords

Required skills

.netapplication architecturecodingscalabilitytroubleshooting

Preferred skills

None specified

Specializations

.netapplication developmententerprise solutionsback-end
Locations

Structured locations inferred from the posting.

New York, NY, USA

On-site City