Top 1335 C# developer Jobs in Washington, Dc

Contract Software Engineer - AI Trainer
DataAnnotation —Washington, DC
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
Quick Apply
Backend Software Engineer - AI Trainer
DataAnnotation —Rosslyn, VA
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
Quick Apply
Backend Software Engineer Lead (US Citizen/Secret Clearance Required)
IvoryCloud —Rockville, MD
- $145,000 - $175,000 a year
- Full-time
- Hybrid work
- Azure
- Computer Science
- System design
- Health insurance
- Dental insurance
Quick Apply
7d
Application Developer
CGI Group, Inc. —Washington, DC
- $69,700 - $169,700 a year
- Oracle
- Computer Science
- ERP systems
- Paid parental leave
- Paid holidays
2d
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
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
Software Developer
Northramp LLC —Washington, DC
- Full-time
- Remote
- Mid-level
- Bachelor's degree
- Mentoring
- AD&D insurance
- Disability insurance
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Cleared C# / .NET Developer
Accenture Federal Services —Arlington, VA
- $91,300 - $184,900 a year
- Azure
- Mid-level
- Office
9d
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
Software Developer (C# / .NET - Logistics & Industrial Systems)
x2 solutions LLC —Herndon, VA
- $75,000 - $95,000 a year
- Full-time
- Hybrid work
- Computer Science
- Engineering
- System design
- Health insurance
- Dental insurance
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Senior Software Developer
Amentum —Chantilly, VA
- $190,000 - $220,000 a year
- Full-time
- Computer science
- 7 years
- Computer Science
- Paid parental leave
- Health savings account
Quick Apply
HP100 Scientific Software Developer
ADNET Systems, Inc. —Greenbelt, MD
- Overtime
- Computer Science
- Java
- Bachelor's degree
- Paid holidays
- Disability insurance
Quick Apply
Senior ServiceNow Developer
Accenture Federal Services —Reston, VA
- $127,100 - $161,100 a year
- 5 years
- Bachelor's degree
- JavaScript
AP106 Scientific Software Developer
ADNET Systems, Inc. —Greenbelt, MD
- Mid-level
- 3 years
- Bachelor's degree
- Paid holidays
- Disability insurance
Quick Apply
Senior Software Developer
Highlight Technologies —Washington, DC
- Email
- Computer science
- Computer Science
- SQL
- Employee stock ownership plan
Software Developer - Expert
Amentum —Chantilly, VA
- $225,000 - $235,000 a year
- Full-time
- Computer science
- Computer Science
- Pass drug screening
Quick Apply
CI/CD Pipeline Engineer - AI Trainer
DataAnnotation —Washington, DC
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
Quick Apply
AP108 HEASARC Senior Scientific Software Developer
ADNET Systems, Inc. —Greenbelt, MD
- Computer Science
- Bachelor of Science
- Bachelor's degree
- Paid holidays
- Disability insurance
Quick Apply
DevOps Engineer - AI Trainer
DataAnnotation —Washington, DC
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
Quick Apply
Senior Application Developer
SOSi —Fort Belvoir, VA
- $140,000 - $155,000 a year
- Full-time
- Azure
- 5 years
- Engineering
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c# developer jobs near washington, dc

Contract Software Engineer - AI Trainer

DataAnnotation -
Washington, DC

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 Contract Software Engineer - 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.

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Refine Your Search

c# developer jobs in washington, dc

Contract Software Engineer - AI Trainer

Backend Software Engineer - AI Trainer

Backend Software Engineer Lead (US Citizen/Secret Clearance Required)

Application Developer

C#/.NET Developer

C# / .Net Developer

Software Developer

Cleared C# / .NET Developer

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

Software Developer (C# / .NET - Logistics & Industrial Systems)

Senior Software Developer

HP100 Scientific Software Developer

Senior ServiceNow Developer

AP106 Scientific Software Developer

Senior Software Developer

Software Developer - Expert

CI/CD Pipeline Engineer - AI Trainer

AP108 HEASARC Senior Scientific Software Developer

DevOps Engineer - AI Trainer

Senior Application Developer

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