Top 611 Back end developer Jobs in Loudoun County Va

Backend Software Engineer - AI Trainer
DataAnnotation —Sterling, VA
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
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Senior Full Stack Developer, TS/SCI with CI Poly - $180K-$270K + 15% 401k
Millennial Software Solutions Inc —Chantilly, VA
- $180,000 - $270,000 a year
- On call
- Azure
- System design
- Java
- Paid training
- Paid holidays
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Software Engineer
Rogue Signal Processing Corporation —Sterling, VA
- $135,000 - $150,000 a year
- Full-time
- Background check
- Computer science
- Computer Science
- Profit sharing
- Disability insurance
Quick Apply
Full Stack Software Developer
ABBTECH Professional Resources, Inc. —Reston, VA
- $200,000 - $213,000 a year
- 6 years
- Bachelor of Science
- Databases
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Developer, Senior (Java)
Freddie Mac —McLean, VA
- $116,000 - $174,000 a year
- Full-time
- Computer science
- Computer Science
- 5 years
.NET Developer (Entry Level)
ASSYST, Inc. —Sterling, VA
- Software troubleshooting
- Office
- SQL
- Disability insurance
- Health insurance
Quick Apply
Full Stack Developer (backend focus)
Blu Omega —Ashburn, VA
- $125,000 - $145,000 a year
- Remote
- Azure
- Mid-level
- 3 years
- AD&D insurance
- Paid holidays
Staff Software Engineer - Back End
Ad Hoc —McLean, VA
- $130,000 - $160,000 a year
- Full-time
- Remote
- 5 years
- Product management
- Military encouraged
- Paid parental leave
- Health insurance
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4d
Java Developer (Junior)
DATAONEZ —Ashburn, VA
- Computer science
- Computer Science
- SQL
- Health insurance
- Opportunities for advancement
Entry Level React Developer
Antra, Inc —Sterling, VA
- $65,000 - $70,000 a year
- Full-time
- Computer Science
- Analysis skills
- JavaScript
- Relocation assistance
- Health insurance
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Node.js developer
Electronic Team —Reston, VA
- Mid-level
- Office
- Health insurance
- Opportunities for advancement
PHP developer
Electronic Team —Reston, VA
- Mid-level
- Office
- Health insurance
- Opportunities for advancement
PHP WEB Developer
GeneDx, Inc —Gaithersburg, MD
- Computer science
- Computer Science
- Mid-level
Quick Apply
.Net Developer
Softthink Solutions —Herndon, VA
- Full-time
- Computer Science
- Software troubleshooting
- System design
Software Developer
GSSR —Chantilly, VA
- Full-time
- Computer science
- Computer Science
- 5 years
- Paid time off
Full Stack Developer
Blu Omega LLC —Ashburn, VA
- $130,000 - $145,000 a year
- Remote
- System design
- Mid-level
- 3 years
- AD&D insurance
- Paid holidays
Developer - Java
Indus Group —Herndon, VA
- Java
- Entry level
- Under 1 year
Software Engineer
WTAnow —Herndon, VA
- Computer Science
- Mid-level
- Master's degree
Java Developer
Anira Solutions Inc. —Ashburn, VA
- Full-time
- Mid-level
- Bachelor's degree
- HTML
- Health insurance
- Dental insurance
Sr Backend Engineer
Trillion Technology Solutions —Reston, VA
- Full-time
- Remote
- Java
- Databases
- 8 years
Quick Apply

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back end developer jobs near loudoun county va

Backend Software Engineer - AI Trainer

DataAnnotation -
Sterling, 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 at $50 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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back end developer jobs in loudoun county va

Backend Software Engineer - AI Trainer

Senior Full Stack Developer, TS/SCI with CI Poly - $180K-$270K + 15% 401k

Software Engineer

Full Stack Software Developer

Developer, Senior (Java)

.NET Developer (Entry Level)

Full Stack Developer (backend focus)

Staff Software Engineer - Back End

Java Developer (Junior)

Entry Level React Developer

Node.js developer

PHP developer

PHP WEB Developer

.Net Developer

Software Developer

Full Stack Developer

Developer - Java

Software Engineer

Java Developer

Sr Backend Engineer

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