ZipRecruiter

Log In

1

Freelance Backend Net Developer Jobs in California

ACI Infotech

.Net Developer

Orange, CA · On-site

$51.50 - $68/hr

... the back end (SQL database). * Collaborates with developers, stakeholders, and subject-matter ... of experience with NET | MVC- Razor | .NET(Core) preferred. * Experience with web content ...

Career Movement

.NET Developer

Los Angeles, CA · Hybrid

$52 - $68.75/hr

We are recruiting for a backend software developer on the technology team of a major professional services organization in Downtown Los Angeles. This is an in-house developer role - not consulting ...

Career Movement

.NET Developer

Los Angeles, CA · On-site

$52 - $68.75/hr

We are recruiting for a backend software developer on the technology team of a major professional services organization in Downtown Los Angeles. This is an in-house developer role - not consulting ...

Career Movement

.NET Developer

Los Angeles, CA · Hybrid

$52 - $68.75/hr

We are recruiting for a backend software developer on the technology team of a major professional services organization in Downtown Los Angeles. This is an in-house developer role - not consulting ...

AgreeYa Solutions

Golang Developer

Fremont, CA · On-site

We are seeking a skilled and motivated Backend/Golang Developer to join our engineering team in ... Experience with ASP.NET-based environments or integrating with .NET applications. * Strong ...

Jobsbridge

Dot Net Developer

Fresno, CA

$48 - $63.25/hr

BA/BS degree in computer science, engineering or a related field (experience and certifications may ... based back-end systems. The candidate will need to possess an enthusiasm for developing tested ...

Jobsbridge

Dot Net Developer

Sacramento, CA

$51.50 - $68/hr

BA/BS degree in computer science, engineering or a related field (experience and certifications may ... based back-end systems. The candidate will need to possess an enthusiasm for developing tested ...

Info Way Solutions

.NET Developer

Fremont, CA · On-site

$53 - $70/hr

NET Developer to join their team. The role involves collaborating with development teams and ... HTML/ CSS, JavaScript, XML, jQuery) • Knowledge of multiple back-end languages (e.g. C#, .Net, ...

Robinhood

Software Engineer, Backend

Menlo Park, CA

As a Software Engineer, you'll build and own backend services, infrastructure, and data systems ... One sub-team focuses on increasing net deposits by testing incentive and non-incentive levers ...

Matrix Precise, Inc.

Sr. Net Architect

Berkeley, CA · On-site

Sr. NET Architect (.NET 8 / React / Angular / SQL Server) Position Overview We are seeking a Senior ... This role requires strong backend engineering expertise, advanced SQL Server knowledge, and the ...

Robinhood

Software Engineer, Backend

Menlo Park, CA · On-site

As a Software Engineer, you'll build and own backend services, infrastructure, and data systems ... One sub-team focuses on increasing net deposits by testing incentive and non-incentive levers ...

Jobsbridge

C#.Net Developer

San Mateo, CA

Net WCF technologies Experience with front end UI design preferred Experience in backend software ... Programming enhancements to a web-based application. Assists in the development of systems design ...

eTouch Systems

Full Stack Web Developer

San Jose, CA · On-site

Hands on needed Node.js backend React.js Front end If interested please share your resume and send it to srele at etouch.net Snehal Rele| Sr Recruiter| Software Engineering Mobile: 4083680292 | Desk ...

eTouch Systems

Full Stack Web Developer

San Jose, CA · On-site

Hands on needed Node.js backend React.js Front end If interested please share your resume and send it to srele at etouch.net Snehal Rele/ Sr Recruiter/ Software Engineering Mobile: 4083680292 / Desk ...

next page

Showing results 1-20

All JobsBackend Net Developer JobsFreelance Backend Net Developer JobsFreelance Backend Net Developer Jobs in California

Freelance Backend Net Developer information

What is the difference between Freelance Backend Net Developer vs Freelance Frontend Net Developer?

AspectFreelance Backend Net DeveloperFreelance Frontend Net Developer
Primary FocusServer-side logic, databases, APIsUser interface, client-side scripting, design
Required Skills.NET, C#, SQL, REST APIsHTML, CSS, JavaScript, frameworks like Angular or React
Work EnvironmentServer environments, cloud platforms, backend systemsWeb browsers, UI/UX design, client devices
Common UsageBuilding and maintaining server-side applicationsCreating interactive and responsive user interfaces

While both roles involve .NET technologies, Freelance Backend Net Developers focus on server-side development, databases, and APIs, whereas Freelance Frontend Net Developers specialize in creating engaging user interfaces and client-side functionality. Understanding these differences helps clients choose the right freelancer for their project needs.

What are the most commonly searched types of Backend Net Developer jobs in California? The most popular types of Backend Net Developer jobs in California are:
What are popular job titles related to Freelance Backend Net Developer jobs in California? For Freelance Backend Net Developer jobs in California, the most frequently searched job titles are:
What job categories do people searching Freelance Backend Net Developer jobs in California look for? The top searched job categories for Freelance Backend Net Developer jobs in California are:
What cities in California are hiring for Freelance Backend Net Developer jobs? Cities in California with the most Freelance Backend Net Developer job openings:
Freelance Backend Net Developer jobs near you
Infographic showing various Freelance Backend Net Developer job openings in California as of June 2026, with employment types broken down into 86% Full Time, 11% Part Time, and 3% Contract. Highlights an 77% Physical, 2% Hybrid, and 21% Remote job distribution.

.Net Developer

ACI Infotech

Orange, CA • On-site

$51.50 - $68/hr

Full-time

Re-posted 14 days ago

Job description

Role: .Net Developer
Duration: 6+ Months
Location: Orange, CA ( Remote role But Candidate need to be local)
Job Summary:
The Programmer Sr. designs, develops, and implements web applications; performs complex and analytical assignments, manages multi-tasking projects, creates, modifies, and maintains business applications. The incumbent is responsible for analyzing and designing existing systems and programs, developing, or recommending new systems or modifications, managing development and implementation of multi-site, web-enabled applications, performing system analysis of programs and processes. The incumbent interfaces with end users to determine system requirements to improve efficiency, accountability and workflow. The incumbent will have proven Web site development, architecture and content management system experience.
Position Responsibilities:
  • Analyzes, designs, develops systems and applications; works with the full software development lifecycle of new projects, writing and maintaining documentation to describe program development, logic, coding, changes, and corrections; consults with stakeholders and users to gather information about needs, objectives, functions, features, and other requirements.
  • Serves as a full stack developer on multi-tier scalable, fault tolerant, and secured applications. Develops highly responsive web UIs (Angular JS and .NET/Core), interfaces with third party components, builds and consumes Application Programing Interface (API) calls via web services (RESTful), writes and consumes data related objects on the back end (SQL database).
  • Collaborates with developers, stakeholders, and subject-matter experts to establish technical vision and analyze trade-offs between usability and performance needs.
  • Coordinates with technical team on the development of Test Plans and works with the Information Technology Services groups to ensure complete testing of all applications.
  • Provides support for existing business systems, maintains, and enhances existing web and client-based applications, modifies existing applications to conform to system changes, addresses and solves complex customer service tickets. Advises and works with business teams to resolve specific or complex problems.
  • Conducts unit tests for new or modified applications.
  • Participates in code reviews and provide technical feedback and suggestions for improvement.
  • Other projects and duties as assigned.

Possesses the Ability to:
  • Utilize computer and appropriate software (e.g., Microsoft Office: Word, Outlook, Excel, PowerPoint) and job specific applications/systems (e.g. Microsoft .NET/Core technologies to develop secure database and web-based applications such as: HTML5, CSS, JavaScript, jQuery, XML, and AJAX) to produce correspondence, charts, spreadsheets, and/or other information applicable to the position assignment.
  • Implement secure coding practices on assigned systems.
  • Research, analyze, and design solutions for complex practices, procedures, and problems.
  • Provide and receive instructions and constructive feedback.
  • Provide production support and resolve issues for existing applications.
  • Implement task management, conflict resolution, and manage multiple projects in a fast-paced, deadline-driven environment.
  • Understand and interpret the user's needs and ideas into specific data information technology solutions.
  • Communicate clearly and concisely, both verbally and in writing, with all levels of staff and outside vendors.
  • Establish and maintain effective working relationships with Client leadership and staff.
  • Initiate and follow-through on projects with minimal supervision and guidance.

Experience & Education:
  • Bachelor's degree in Computer Science, Information Science, or related field and/or equivalent combination of education and work experience required.
  • 3 years of professional web development (C#) and production experience for high traffic Web sites required.
  • 1 year of experience in popular JavaScript frameworks and libraries (Angular, React, Vue, etc.), RESTful Web Services, Microsoft Visual Studio 2019+, Azure DevOps or other version control system required.

Preferred Qualifications:
  • 2 years of database development and production support experience (Microsoft SQL Server 2016+) preferred.
  • 2 years of experience with NET | MVC- Razor | .NET(Core) preferred.
  • Experience with web content management systems (Sitecore) preferred.
  • Experience in any of the following software development platforms/tools; Github, Nuget package manager, NPM preferred.
  • Healthcare experience preferred.
    • Experience implementing complex enterprise solutions preferred.

Knowledge of:
  • Application programming interfaces, communication protocols, programming languages, and various scripting languages and web-based/cloud-based computing best practices.
  • Server software operation, maintenance, and extension (using various programming tools) and application to multiple server platforms.
  • Computer architecture, in both hardware and software components.
  • Concepts of database, application, and web security.
  • Fundamentals of Agile methodology.
  • Methods and techniques of de-bugging programs and applications.
  • Principles and practices of applications design and programming and Software Development Life Cycle (SDLC).
  • Advanced knowledge of Microsoft SQL Server architecture and programming and techniques in programming utilizing best known practices and design patterns.
  • Systems and procedures analysis and development.
  • Working knowledge of Application Lifecycle Management (ALM) with Azure DevOps integration.

Apply