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Freelance Dot Net Backend Developer Jobs (NOW HIRING)

VISTA Technology Services

Back-End Developer

Springfield, VA · On-site

$100K - $145K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

The Back-End Developer will implement, and maintain server-side logic, APIs, and system integration ... Knowledge of server-side frameworks (e.g., Django, Spring, .NET). * Knowledge of database design ...

Calance US

.NET Developer- Onsite

Wilmington, DE

  • Medical

  • Dental

  • Vision

  • Life

NET Developer- Onsite for a Contract position in Wilmington, DE **W2 only contract, no 3rd parties ... The ideal candidate brings strong backend development expertise in .NET alongside a solid ...

VISTA Technology Services

Back-End Developer

Springfield, VA · On-site

$100 - $145/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

The Back-End Developer will implement, and maintain server-side logic, APIs, and system integration ... Knowledge of server-side frameworks (e.g., Django, Spring, .NET). * Knowledge of database design ...

IS3 Solutions

.NET Developer

Wilmington, DE · On-site

$46.75 - $61.75/hr

NET Developer to design, build, and maintain enterprise-grade web applications for the banking ... The ideal candidate will have strong backend development expertise in .NET and a solid ...

Systemates INC

Sr. Backend Developer

Richardson, TX · On-site

$100 - $120/hr

About the Job The Sr. Backend Developer is a senior individual contributor responsible for ... NET technology stack (.NET Core, ASP.NET) * Deep experience with Azure SQL Server -- query ...

Projectmates

Sr. Backend Developer

Richardson, TX · On-site +1

About the Job The Sr. Backend Developer is a senior individual contributor responsible for ... NET technology stack (.NET Core, ASP.NET) * Deep experience with Azure SQL Server - query ...

Neotecra

.NET MAUI Developer

Manhattan, NY · On-site

$56.75 - $78/hr

NET MAUI/iOS engineering expertise, strong problem-solving skills, and the ability to independently ... Integrate securely with REST/GraphQL APIs, .NET backend services, Azure services, relational ...

Innova Solutions, Inc

Backend .NET Developer

Pennington, NJ · On-site

$65 - $68/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

NET Developer who is back-end heavy. Qualified candidates should APPLY NOW for immediate consideration! This position is only open to applicants who can be engaged on a W-2 basis. Please hit APPLY to ...

InfoPeople Corporation

Java Back End Developer

Needham, MA · On-site

$55 - $71.25/hr

InfoPeople Corporation is seeking a Full Stack Developer with strong backend and systems-level ... NET systems • Implement secure file transfer and encryption integrations (SFTP, RSA certificates ...

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Freelance Dot Net Backend Developer information

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How much do freelance dot net backend developer jobs pay per hour?

As of Aug 19, 2026, the average hourly pay for freelance dot net backend developer in the United States is $57.73, according to ZipRecruiter salary data. Most workers in this role earn between $47.36 and $68.27 per hour, depending on experience, location, and employer.

What is the difference between Freelance Dot Net Backend Developer vs Freelance Java Backend Developer?

AspectFreelance Dot Net Backend DeveloperFreelance Java Backend Developer
Required SkillsProficiency in C#, .NET framework, ASP.NET, SQL ServerProficiency in Java, Spring Boot, Hibernate, SQL databases
Work EnvironmentTypically works on Windows-based systems, often in enterprise environmentsOften works on cross-platform systems, in diverse industries
Industry UsageCommon in finance, healthcare, and enterprise software sectorsPopular in e-commerce, banking, and large-scale web applications

Both roles involve backend development but differ mainly in programming language and ecosystem. Freelance Dot Net Backend Developers focus on C# and Microsoft technologies, while Freelance Java Backend Developers work with Java and related frameworks. Your choice depends on the project requirements and your expertise.

What cities are hiring for Freelance Dot Net Backend Developer jobs?

Cities with the most Freelance Dot Net Backend Developer job openings:

What are the most commonly searched types of Dot Net Backend Developer jobs?

The most popular types of Dot Net Backend Developer jobs are:

Freelance Dot Net Backend Developer jobs near you

Back-End Developer

VISTA Technology Services

Springfield, VA • On-site

$100K - $145K/yr

Full-time

Medical, Dental, Vision, Life, Retirement

Posted 21 days ago

Job description

VISTA Technology Services, Inc. (VISTA) is currently seeking a Back-End Developer to support a U.S. Intelligence Agency in Springfield, VA.
This position is contingent upon contract award.
The Back-End Developer will implement, and maintain server-side logic, APIs, and system integration for TSSC applications. Ensure back-end components meet technical requirements, security standards, and support the overall mission objectives.
Responsibilities:
  • Designing, developing, and maintaining server-side applications and APIs
  • Building and managing databases, and ensuring data integrity and security
  • Design and optimize database queries and data access layers
  • Integrate with Government authentication systems and security frameworks
  • Writing clean, efficient, and well-documented code
  • Leading code reviews and promoting best practices in back-end development
  • Implement security controls and ensure compliance with applicable regulations
  • Create and maintain documentation for back-end systems and interfaces
  • Collaborate with front-end developers to ensure seamless integration
  • Coordinate with data engineering team on database design and implementation
  • Provide technical leadership and mentoring to junior developers

Basic Qualifications:
  • Bachelor's degree in Computer Science, Software Engineering, or related field
  • Minimum of 8 years of experience in back-end development
  • Expertise in one or more back-end programming languages such as Python, Java, C#, Ruby, or Docker, Kubernetes.
  • Knowledge of server-side frameworks (e.g., Django, Spring, .NET).
  • Knowledge of database design and optimization techniques
  • Experience with API development and integration
  • Understanding of security best practices for classified environments
  • Experience with authentication and authorization systems (e.g., MongoDB, Cassandra).
  • Experience with API design and development (e.g., REST, GraphQL).
  • Proficiency with cloud platforms (e.g., AWS, Azure, GCP) and containerization technologies (e.g., Node.js).
  • Strong understanding of database technologies, both SQL (e.g., PostgreSQL, MySQL) and NoSQL
  • Active TS with SCI eligibility

Desired Qualifications:
  • Experience working with classified systems and security requirements
  • Knowledge of TSSC operations and requirements
  • Experience with cloud-based infrastructure and services
  • Understanding of signal processing and data analysis techniques
  • Experience with high-performance computing for data processing
  • Experience with message brokers like Kafka or RabbitMQ
  • Knowledge of caching technologies such as Redis or Memcached
  • Expertise in designing and implementing microservices architectures
  • Proficiency with Infrastructure as Code (aC) tools like Terraform or Ansible
  • Experience with serverless computing (e.g., AWS Lambda, Azure Functions)

Salary at VISTA is determined by various factors, including but not limited to location, the individual's particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements. The projected compensation range for this position is $100,000.00 to $145,000.00 (annualized USD) based on years of experience. The estimate displayed represents the typical salary range for this position and is just one component of VISTA's total compensation package for employees. We also offer a competitive leave package and a generous benefit plan which includes medical, dental, vision, life and disability insurance, tuition assistance, and an employer matching 401(k) plan.
Applicants selected for this position will be subject to a government security investigation and must meet eligibility requirements for access to classified information.
For this position, VISTA will consider only applicants with an active DoD security clearance.
To learn more about VISTA and to apply for this position, please visit our website at www.vistatsi.com.
VISTA is an Equal Opportunity Employer/Disability/Veterans Employer

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