Top 371 C# web developer Jobs in Washington, Dc

Frontend Developer - AI Trainer
DataAnnotation —Chevy Chase, MD
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
Quick Apply
Frontend Developer - AI Trainer
DataAnnotation —Fort Meade, MD
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
Quick Apply
Frontend Developer - AI Trainer
DataAnnotation —Suitland, MD
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
Quick Apply
Senior .NET Developer (US citizen/Hybrid Work/Public Trust Required)
IvoryCloud —Rockville, MD
- $110,000 - $140,000 a year
- Full-time
- Hybrid work
- Computer Science
- Office
- Bachelor's degree
- Disability insurance
- Health insurance
Quick Apply
7d
Mobile/Web Developer (.Net)
Air Line Pilots Association, Int'l. —McLean, VA
- $96,027 - $137,179 a year
- Hybrid work
- Microsoft Outlook
- Computer Science
- Research
- Commuter assistance
- Health savings account
Jr. SW Developer
CGI Group, Inc. —Fairfax, VA
- $58,000 - $123,800 a year
- Computer Science
- System design
- English
- Paid parental leave
- Paid holidays
Mid SW Developer
CGI Group, Inc. —Fairfax, VA
- $70,800 - $156,700 a year
- Computer Science
- System design
- Research
- Paid parental leave
- Paid holidays
Jr. Java Developer
CGI Group, Inc. —Fairfax, VA
- $70,800 - $172,400 a year
- Computer Science
- System design
- Research
- Paid parental leave
- Paid holidays
8d
Web Developer
Greystones Group —Washington, DC
- Software troubleshooting
- Mid-level
- Master's degree
Quick Apply
C#/.NET Developer
E-Infosol LLC —Washington, DC
- $151,000 - $159,400 a year
- Full-time
- Azure
- 3 years
- SQL
- Health savings account
- AD&D insurance
9d
Web Applications Developer - Sacramento, CA
AHU Technologies Inc —Washington, DC
- $50 an hour
- Full-time
- Computer science
- Computer Science
- Research
Quick Apply
Software Developer
Northramp LLC —Washington, DC
- Full-time
- Remote
- Mid-level
- Bachelor's degree
- Mentoring
- AD&D insurance
- Disability insurance
Quick Apply
Software/Web Developer
Kentro —Springfield, VA
- Azure
- Computer Science
- Mid-level
- Health insurance
- Tuition reimbursement
Entry Web Developer
Lentech Inc. —Annapolis Junction, MD
- $87,000 - $98,000 a year
- Full-time
- Computer science
- Azure
- Computer Science
Quick Apply
Full Stack Web Developer
CACI —Bethesda, MD
- $103,800 - $218,100 a year
- Full-time
- Computer science
- Computer Science
- SQL
- Health insurance
Web Application Developer
E-Infosol LLC —Washington, DC
- $140,000 - $146,000 a year
- Full-time
- Bachelor's degree
- Mentoring
- SharePoint
- Health savings account
- AD&D insurance
INet Web Developer, IS-2210-11
Smithsonian Associates —Washington, DC
- $85,447 - $93,994 a year
- Full-time
- Background check
- Research
- Office
- Commuter assistance
- AD&D insurance
8d
C# / .Net Developer
Synergy ECP —Washington, DC
- $125,000 - $155,000 a year
- Full-time
- Azure
- 3 years
- SQL
- Paid holidays
- Health insurance
Quick Apply
9d
INet Web Developer, IS-2210-11
Smithsonian Institution —Washington, DC
- $85,447 - $93,994 a year
- Full-time
- Background check
- Research
- Office
- Commuter assistance
- AD&D insurance
2d
.Net Software Developer
Peraton —McLean, VA
- $86,000 - $138,000 a year
- Remote
- Azure
- Bachelor of Science
- High school diploma or GED
- Health savings account
- Paid holidays

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c# web developer jobs near washington, dc

Frontend Developer - AI Trainer

DataAnnotation -
Chevy Chase, MD

Quick Apply

Job Details

Part-time | Full-time | Contract
$50 - $100 an hour

Benefits

Flexible schedule

Qualifications

English

Full Job Description

DataAnnotation is committed to creating quality AI. Help train AI chatbots while gaining the flexibility of remote work and choosing your own schedule.

We are looking for an existing Frontend Developer - AI Trainer to help train AI models. You'll be part of a growing community of over 100,000 professionals — including front-end, back-end, full-stack, machine learning, and other engineers — who are driving real-world impact in AI development.

Our platform offers an engaging blend of flexibility and challenge: you'll work closely with state-of-the-art AI models to take on programming tasks that include creating and solving challenging coding problems, building beautiful apps with rich functionality, and synthesizing insights through data analysis and visualization. Your work directly contributes to refining intelligent systems that learn, adapt, and evolve. You can fit this work alongside a full-time role, or treat it as your primary focus, choosing projects and schedules that align with your availability and goals.

To get started, once you sign up for an account, you'll take a short assessment (this serves as our version of an interview). If you pass that assessment, you'll receive an email confirmation, and paid work will become available to you through our platform.

Advantages of contracting with us:

Fully remote: work from anywhere in the US, Canada, UK, Ireland, Australia, and New Zealand.
Flexible schedule: choose which projects you take on and when you work, on your own computer, from the comfort of your own home.
Competitive pay: projects are paid hourly, up to $100+ USD per hour. Opportunities for higher bonus rates available for certain projects.
Impact: help shape the future of AI technologies.

Responsibilities:

Design and solve diverse coding problems used to train AI systems.
Write clear, high-quality code snippets and detailed explanations.
Evaluate AI-generated code for accuracy, performance, and clarity.
Provide feedback that directly shapes the next generation of AI models.

Qualifications:

Fluency in English (native or bilingual level).
Proficiency in at least one of the following programming languages or frameworks: JavaScript, TypeScript, Python, C, C#, C++, React, Go, Java, Kotlin, or Swift.
Excellent writing and grammar skills.
A bachelor's degree (completed or in progress).
Previous experience as a Software Developer, Coder, Software Engineer, or Programmer is preferred.

Note: Payment is made via PayPal. We will never ask for any money from you. PayPal will handle any currency conversions from USD. This job is only available to those in the US, Canada, UK, Ireland, Australia, and New Zealand. Those located outside of these countries will not see work or assessments available on our site at this time.

Quick Apply

Refine Your Search

c# web developer jobs in washington, dc

Frontend Developer - AI Trainer

Frontend Developer - AI Trainer

Frontend Developer - AI Trainer

Senior .NET Developer (US citizen/Hybrid Work/Public Trust Required)

Mobile/Web Developer (.Net)

Jr. SW Developer

Mid SW Developer

Jr. Java Developer

Web Developer

C#/.NET Developer

Web Applications Developer - Sacramento, CA

Software Developer

Software/Web Developer

Entry Web Developer

Full Stack Web Developer

Web Application Developer

INet Web Developer, IS-2210-11

C# / .Net Developer

INet Web Developer, IS-2210-11

.Net Software Developer

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