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Freelance Backend Net Developer Jobs in Pennsylvania

Morph Enterprise

Senior .Net Developer

Harrisburg, PA · On-site

$54.25 - $69/hr

Required skill: * .NET Core and C#, for building backend services and applications. * ASP.NET, ASP ... Visual Studio with recent experience in VS2022 and VS Code, Azure DevOps /Git. * Knowledge of ...

Kforce Technology Staffing

Senior .NET Developer

Horsham, PA · On-site

$54.25 - $69/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Experience with modern backend development frameworks and object-oriented programming concepts * Working knowledge of frontend technologies and JavaScript-based frameworks * Experience with ...

Vanguard Group, Inc.

Engineering Manager

Malvern, PA · On-site

The team owns the Designated Point of Contact (DPOC) platform, a micro-frontend widget and backend ... net-worth and ultra-high-net-worth clients. The tech stack includes Angular, Preact, Node.js, ...

Vangard, Inc.

Engineering Manager

Malvern, PA

The team owns the Designated Point of Contact (DPOC) platform, a micro-frontend widget and backend ... net-worth and ultra-high-net-worth clients. The tech stack includes Angular, Preact, Node.js, ...

Comcast

IOS Mobile Development Engineer 4

Philadelphia, PA · On-site +1

$52.25 - $72/hr

... iOS Developer to join the Connected Living Camera Client Engineering team. This group is ... Collaborate with product, backend, and device teams to deliver end-to-end functionality

New

Anexinet

Cloud Engineer

Blue Bell, PA · Remote

$53.25 - $71.25/hr

... solid back-end, all informed by data-driven insights and powered by partnerships with top tech ... Plus, we keep it all running with our managed services and DevOps teams. Recognized for 10 ...

Anexinet

Cloud Engineer

Blue Bell, PA · On-site

$53.25 - $71.25/hr

... solid back-end, all informed by data-driven insights and powered by partnerships with top tech ... Plus, we keep it all running with our managed services and DevOps teams. Recognized for 10 ...

PNC

Senior Software Engineer - .Net/C#/API

Pittsburgh, PA

$118K - $156K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Develop and optimize RESTful APIs and backend services to support business applications. * Create ... Knowledge of CI/CD pipelines, DevOps practices, and cloud-based environments. * Financial services ...

New

Accenture

Health Provider Revenue Cycle Manager

Philadelphia, PA · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

... engineering critical processes, and fundamentally transforming the way a company operates. Our ... Minimum of 2 years leading revenue cycle transformation engagements with measurable impact on net ...

Accenture

Health Provider Revenue Cycle Manager

Pittsburgh, PA · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

... engineering critical processes, and fundamentally transforming the way a company operates. Our ... Minimum of 2 years leading revenue cycle transformation engagements with measurable impact on net ...

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

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 Pennsylvania?

The most popular types of Backend Net Developer jobs in Pennsylvania are:

What are popular job titles related to Freelance Backend Net Developer jobs in Pennsylvania?

For Freelance Backend Net Developer jobs in Pennsylvania, the most frequently searched job titles are:

What job categories do people searching Freelance Backend Net Developer jobs in Pennsylvania look for?

The top searched job categories for Freelance Backend Net Developer jobs in Pennsylvania are:

What cities in Pennsylvania are hiring for Freelance Backend Net Developer jobs?

Cities in Pennsylvania 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 Pennsylvania as of August 2026, with employment types broken down into 3% As Needed, 85% Full Time, 8% Part Time, and 4% Contract. Highlights an 86% Physical, 5% Hybrid, and 9% Remote job distribution.

Mid-Tier Application and Database Developer

Age Solutions

Philadelphia, PA • On-site

$115K/yr

Other

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 2 days ago

Job description

About Us
AGE Solutions is a premier technology and professional services company, providing in-depth consulting, advanced technology solutions, and essential services throughout the U.S. government, defense, and intelligence sectors. Prioritizing innovation and client-focused solutions, we assist major agencies in addressing intricate issues and ensuring a more secure future.

AGE is seeking a Software Developer with strong C# and database expertise to join our development team. This role focuses on building and maintaining robust middle-tier services and data-driven applications. The candidate will work closely with cross-functional teams to design, develop, maintain and optimize scalable backend systems that power critical business functionality.

The ideal candidate combines solid middle-tier development experience with deep database development knowledge and a strong understanding of system design, performance, maintainability, and data integrity.

This role is hybrid in Philadelphia, PA, requiring onsite reporting at the customer's facility at least 1 day/week. Candidates must reside within a commutable distance of Philadelphia, PA in order to work onsite as required.

Responsibilities Include:

  • Design, develop, and maintain middle-tier services and backend components using C# and .NET technologies.
  • Apply SOLID principles and clean architecture practices in application design.
  • Build robust APIs and business logic layers to support web and enterprise applications.
  • Collaborate with front-end developers, architects, and DevOps teams to deliver integrated solutions.
  • Design, develop, optimize, and maintain relational databases (Oracle preferred).
  • Write efficient stored procedures, views, functions, and complex queries.
  • Optimize database performance, indexing strategies, and query tuning.
  • Participate in code reviews and enforce best practices for clean, maintainable code.
  • Troubleshoot and resolve production issues related to application logic and data layers.
  • Contribute to architectural decisions and technical design discussions.
  • Document technical designs and implementation details.

Required Skills, Qualifications and Experience:

  • BA/BS in technical discipline.
  • 10 years of experience in middle-tier and database development.
  • Experience in applying SOLID principles and object-oriented design patterns.
  • Strong proficiency in C# and .NET (.NET Core/.NET 6+) and ASP.NET Web API.
  • Experience designing and building RESTful APIs and middle-tier services.
  • Experience with ORM frameworks (Entity Framework preferred, Dapper).
  • Strong SQL skills and experience with relational databases (Oracle preferred, SQL Server, PostgreSQL).
  • Experience writing and optimizing complex queries and stored procedures.
  • Strong understanding of data modeling and database design principles.
  • Experience with version control systems (TFVC and Git).
  • Strong problem-solving skills and attention to detail.
  • Must be a United States citizen with a DoD Secret clearance or ability to obtain a favorably adjudicated T3 investigation.

Preferred Qualifications:

  • Experience with microservices architecture
  • Experience with CI/CD pipelines and DevOps best practices
  • Experience with cloud platforms (Azure preferred)
  • Experience with caching strategies (Redis, in-memory caching)
  • Experience with performance profiling and monitoring tools
  • Experience with containerization (Docker, Kubernetes)
  • Experience with automated testing frameworks

Work Environment and Physical Demand:

  • Must be able to work for extended periods of time at a computer.

Compensation: $115,000+

At AGE Solutions, we reward performance, invest in growth, and share success. Our benefits support the whole person, professionally, financially, and personally.

  • 26 Days Paid Leave: Includes vacation, sick, personal time, and holidays. You choose how to use it.
  • Performance Bonuses: Performance bonuses are awarded based on individual contributions and company-wide results, aligning recognition with impact.
  • 401(k) with Match: We match 3% of your contributions with immediate vesting.
  • Financial Protection: Company-paid life insurance up to $300K and options for additional coverage for you and your dependents.
  • Health Benefits: Multiple medical plans, dental, vision, FSA and HSA options to fit your needs.
  • Parental Leave: 15 days of fully paid leave for new parents, because family matters.
  • Military Differential Pay: We bridge the gap for employees on active duty, so they don't take a financial hit while serving.
  • Professional Growth: Paid training and certifications, tuition reimbursement, and the tools and tech to get the job done right.
  • Shared Success: In the event of a company sale, our CEO has committed to returning 80% of net proceeds to employees. This ensures our team shares in the long term value they help create.

At AGE, you'll do work that matters, supported by a company that delivers for its people.

Apply