Top 1490 C# Jobs in Vienna, Va

Backend Software Engineer - AI Trainer
DataAnnotation —Falls Church, VA
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
Quick Apply
Software Developer - AI Trainer
DataAnnotation —Rosslyn, VA
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
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Jr. Net, C#, SQL Developer - Active Top Secret required
General Dynamics Information Technology —Washington, DC
- $81,349 - $92,000 a year
- Computer Science
- Research
- Mid-level
- Paid holidays
- 401(k) matching
7d
Software Engineer - Weapon Launchers & Simulation
General Dynamics Mission Systems, Inc —Manassas, VA
- $90,833 - $100,767 a year
- Full-time
- Hybrid work
- Mid-level
- Java
- Master's degree
- Paid parental leave
- Health insurance
1d
Entry Level to Senior Level .NET Developers
ISoftech —Chantilly, VA
- SQL
- SharePoint
- Entry level
Junior Software Engineer - R25-002
Verite Educational Services —Dulles, VA
- Full-time
- Computer science
- Communication skills
- Entry level
- Health insurance
- Paid time off
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Dot Net Developers
Indus Group —Herndon, VA
- SQL
- SharePoint
- Entry level
Entry Level Software Engineer
General Dynamics Mission Systems, Inc —Manassas, VA
- $75,946 - $84,253 a year
- Java
- Linux
- Python
- Paid parental leave
- Health insurance
Software Engineer in Test – C# / WPF
CaseGuard —Arlington, VA
- Computer science
- Computer Science
- Mid-level
- Paid holidays
- Health insurance
Application Engineer Level I - Developer
Evurge Solutions —Washington, DC
- Full-time
- Remote
- Mid-level
- 3 years
- Bachelor's degree
QA Engineer - DM platform (Remote) - Blue Bell, PA
AHU Technologies Inc —Washington, DC
- $55 an hour
- Full-time
- Remote
- Research
- Mid-level
- Java
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ASP.Net / C# Programmers
Marjen IT —Washington, DC
- Oracle
- Mid-level
Web Applications Developer - Sacramento, CA
AHU Technologies Inc —Washington, DC
- $50 an hour
- Full-time
- Computer science
- Computer Science
- Research
Quick Apply
Full Stack Developer
SELLERS & ASSOCIATES —Arlington, VA
- Full-time
- Azure
- 6 years
- Computer Science
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
12d
Full Stack Developer
Interclypse, Inc. —Chantilly, VA
- Full-time
- Mid-level
- Communication skills
- Paid jury duty
- Health savings account
Software Engineer
Interclypse, Inc. —Reston, VA
- Full-time
- Mid-level
- Windows
- C++
- Paid jury duty
- Health savings account
Junior Software Engineer
CACI —Chantilly, VA
- $94,400 - $198,200 a year
- Full-time
- Computer science
- Computer Science
- Salesforce
- Health insurance
Data Integration Engineer - Remote
Inteliquet, Inc —Washington, DC
- Full-time
- Remote
- HIPAA
- Mid-level
- Communication skills
Quick Apply
Engineer I, AI Agents
AARP —Washington, DC
- $97,200 - $108,000 a year
- Full-time
- Remote
- Azure
- Computer Science
- Writing skills
- Paid holidays
- Health insurance

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c# jobs near vienna, va

Backend Software Engineer - AI Trainer

DataAnnotation -
Falls Church, VA

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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 Backend 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# jobs in vienna, va

Backend Software Engineer - AI Trainer

Software Developer - AI Trainer

Jr. Net, C#, SQL Developer - Active Top Secret required

Software Engineer - Weapon Launchers & Simulation

Entry Level to Senior Level .NET Developers

Junior Software Engineer - R25-002

Dot Net Developers

Entry Level Software Engineer

Software Engineer in Test – C# / WPF

Application Engineer Level I - Developer

QA Engineer - DM platform (Remote) - Blue Bell, PA

ASP.Net / C# Programmers

Web Applications Developer - Sacramento, CA

Full Stack Developer

INet Web Developer, IS-2210-11

Full Stack Developer

Software Engineer

Junior Software Engineer

Data Integration Engineer - Remote

Engineer I, AI Agents

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