ASP.NET Core

ASP.NET Core Developer Jobs

38 jobs found

15d ago

Senior Software Engineer

Melon Local Las Vegas, NV 🇺🇸 Remote

Las Vegas, NV

15d ago

$130k - $160k/yr Full time Backend Developer Senior Ai Design Tools

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Job Description

Senior Software Engineer at Melon Local leads AI augmented tooling across a .NET backend and React frontend in a remote-capable role.

Responsibilities

Conceive and blueprint features across Azure Functions, two Web APIs, an ASP.NET MVC web app, and a customer-facing React frontend served via a .NET Backend-for-Frontend that consumes the same Web APIs.
Lead AI assisted development as the primary implementation method, guiding AI outcomes with a strong architectural mindset.
Make cross-system integration decisions, including API contracts, BFF aggregation approaches, and the allocation of responsibilities among Azure Functions, Web APIs, and the MVC app.
Debug end-to-end by tracing issues from the React UI through the BFF and Web APIs down to SQL Server.
Review AI-generated and AI-assisted code from yourself and peers, identifying subtle defects, architectural drift, or pattern violations.
Participate in architecture discussions and code reviews as a peer among engineers, not a directive lead.
Use AI coding tools as a daily core capability rather than a curiosity.

Requirements

Minimum 5 years of professional .NET development experience with hands-on work in the past year.
Strong command of C#, .NET Core / .NET 8+, ASP.NET MVC, Web APIs, and Razor; capable of building from scratch if needed, though daily work may leverage AI-assisted tooling.
Hands-on experience with Entity Framework Core, including DI of DbContext, LINQ queries, migrations, and performance patterns; able to explain DbContext registration and usage from memory.
Proficient with SQL Server, including writing queries, understanding indexes, reading execution plans, and identifying N plus 1 problems.
Experience with React for the customer-facing frontend.
Familiarity with Azure Functions or other serverless patterns.
Strong architectural intuition across related services; able to map a feature spec to impacted projects.
Has already shifted to AI-augmented development and is enthusiastic about using AI as a primary implementation method.
Comfortable both validating and producing code.
Plans implementation end-to-end before writing prompts.

Technologies

Azure Functions
Web APIs
ASP.NET MVC
React
.NET Core
.NET 8+
C#
Razor
Entity Framework Core
SQL Server
Backend-for-Frontend (BFF)
Claude Code
Copilot
Cursor
Codex
Git
Azure
REST APIs

BENEFITS

Medical, dental, and vision insurance.
Bereavement leave.
401(k) 4% Match.
Paid time off and paid holidays.
Paid sick time.
Parental leave.
Referral program.
Flexible scheduling options.

THIS ROLE MAY NOT BE A FIT IF…

Daily AI tooling is not part of your workflow or you prefer to code everything by hand.
In the last six months you have primarily managed engineers, set strategy, or performed architecture work without hands-on implementation.
Reading and assessing a typical 200-line .NET pull request or AI-generated code would be challenging for you.
You are seeking a staff or principal architect role that directs others rather than delivering features yourself.
Your experience does not span multiple related .NET projects such as APIs, MVC web apps, serverless functions, and BFFs.
You are skeptical that AI augmented development is the future of professional engineering.

LOGISTICS

Location: Remote, based in the Salt Lake City, UT or Las Vegas, NV metro areas, or within a reasonable driving distance to support occasional in-person collaboration.
Schedule: Monday through Friday, full-time.
Reports to: Software Engineering Manager.
Equal opportunity Melon Local is an equal opportunity employer. We celebrate diversity and are committed to an inclusive environment for every team member.

COMPENSATION & BENEFITS

Base salary: $130,000–$160,000 DOE.
Medical, dental, and vision insurance.
Bereavement leave.
401(k) 4% Match
Paid time off and paid holidays.
Paid sick time
Parental leave
Referral program
Flexible scheduling options

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23d ago

Full Stack .NET Developer (C#, ASP.NET Core, Blazor)

i-softcorp Remote 🌍 Remote

Remote

23d ago

$45 - $45/hr Contract .NET .NET Core ASP.NET Core

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Job Description

We are seeking an experienced Full Stack .NET Developer for a remote contract role focused on C#, ASP.NET Core, and Blazor to design, develop, test, and maintain enterprise web applications. The ideal candidate will navigate the full software development lifecycle, delivering scalable, secure solutions and providing production support.

Responsibilities

Design, develop, and maintain enterprise web applications using C#, ASP.NET Core, and Blazor.
Build responsive user interfaces alongside robust backend services.
Develop and optimize SQL Server databases, stored procedures, and queries.
Implement data access with Entity Framework Core.
Create workflow automation solutions to streamline business processes.
Implement and maintain role-based authentication and authorization for secure applications.
Collaborate with business analysts, developers, QA teams, and stakeholders to deliver high-quality software.
Participate in code reviews and follow software development best practices.
Build and maintain CI/CD pipelines using Azure DevOps.
Write unit tests and integration tests and perform application debugging.
Troubleshoot production issues and provide timely production support.
Monitor application performance and recommend improvements.
Maintain technical documentation and participate in Agile ceremonies.

Required Qualifications

Bachelor's degree in Computer Science, Information Technology, or a related field.
5+ years of experience in Full Stack .NET Development.
Strong experience with C# and ASP.NET Core.
Hands-on experience developing applications using Blazor.
Strong knowledge of SQL Server, database design, and query optimization.
Experience with Entity Framework Core.
Experience implementing workflow automation solutions.
Strong understanding of role-based security and authentication.
Experience using Azure DevOps for source control, builds, and deployments.
Experience with CI/CD pipelines.
Experience writing unit and integration tests.
Strong troubleshooting and production support experience.
Excellent problem-solving and communication skills.
Experience working in Agile/Scrum environments.

Technologies

C#
ASP.NET Core
Blazor
SQL Server
Entity Framework Core
Azure DevOps
REST APIs
Git
CI/CD

Job Summary

The role centers on designing, building, testing, and maintaining enterprise web applications using contemporary Microsoft technologies. Candidates should demonstrate experience across the full software development lifecycle, delivering scalable and secure systems, and providing production support in a collaborative environment.

Preferred Qualifications

Experience with Azure cloud services.
Experience with RESTful APIs and microservices.
Knowledge of performance tuning and application optimization.
Experience with Git version control.
Familiarity with DevOps best practices.

Employment Details

Location: Remote

Job Type: Contract

Pay Rate: USD 45/hour (All Inclusive)

Required Technical Skills

C#
ASP.NET Core
Blazor
SQL Server
Entity Framework Core
Azure DevOps
CI/CD
Workflow Automation
Role-Based Security
REST APIs
Git
Unit Testing
Integration Testing
Production Support
Agile/Scrum

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24d ago

.NET Developer

CompuSource Systems, Inc. Amherst, NY

Amherst, NY

24d ago

$50k - $125k/yr Full time Backend Developer .NET .NET Core

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Job Description

CompuSource Systems, Inc. seeks a .NET Developer to design, build, and maintain software within the .NET framework. The role encompasses creating applications from the ground up, configuring existing systems, and delivering user support, in collaboration with internal teams to design, develop, and sustain software solutions.

Responsibilities

Assist in requirements analysis
Collaborate with internal teams to define software design and architecture
Write clean, scalable code using .NET languages
Test, deploy, and maintain applications and systems
Revise, refactor, and debug code
Improve existing software
Develop documentation throughout the software development life cycle
Serve as an expert on applications and provide technical support

Requirements

Demonstrated experience as a .NET Developer or Application Developer
Proficiency with Visual Studio
Experience with ASP.NET, SQL Server, and design patterns such as Model-View-Controller
Knowledge of .NET languages including C# and Visual Basic .NET
Familiarity with .NET Core, iOS and Android development, Swift, MAUI
Knowledge of architecture styles and APIs (REST, RPC)
Experience with Git repositories and NuGet Server
BS/BA in Computer Science, Engineering or related field

Technologies

.NET
Visual Studio
ASP.NET
SQL Server
MVC
C#
Visual Basic.NET
.NET Core
iOS
Android Development
Swift
MAUI
REST
RPC
Git
NuGet

Benefits

401(k)
401(k) matching
Dental insurance
Health insurance
Paid time off
Vision insurance
Profit sharing

Job Type

Full-time

Salary

USD 50,000 - 125,000 per year

Compensation Package

Profit sharing

Schedule

Monday to Friday

Location and Work Arrangement

Location: Amherst, NY 14228 (onsite)
Commute requirement: Amherst, NY 14228 (Required)
Relocation: Required to Amherst, NY 14228 before starting work
Work location: In person

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24d ago

IT Software Developer

HAMASPIK CHOICE INC Spring Valley, NY

Spring Valley, NY

24d ago

$110k - $150k/yr Full time Backend Developer .NET .NET Core

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Job Description

The Senior Software Developer develops C# code and .NET solutions for all Medicare and Medicaid lines of business.

Location: Spring Valley, NY onsite. Compensation: USD 110,000 - 150,000 per year. Minimum experience: 2 years.

Responsibilities

Build vendor integrations, services, and web applications to support current and upcoming technology initiatives using C#.
Collaborate in project and solution planning with management and teammates.
Independently identify technology bottlenecks and deficiencies, determine the best course of action, and implement efficient, sustainable solutions.
Automate jobs using SQL, Visual Studio, ALTREX, DTS, Python, C#, SSIS, and ASP.NET.

Requirements

Deep expertise in the ASP.NET stack, including C#, ASP.NET Core, and ASP.NET MVC.
Proficiency with Windows stack tools such as SQL Server, SSIS, and Visual Studio.
Ability to independently define project parameters with minimal guidance.
Strong project management skills and the ability to track ongoing issues independently.
Willingness to adapt to changing goals, ad hoc requests, and requirements
Effective communication to keep all team members and management informed.
5+ years of demonstrated experience as a C# Developer
3+ years of experience developing ASP.NET web applications
3+ years of ETL development
2+ years of Medical Terminology Experience
Experience with healthcare technology (MCO plans), hybrid datamining, and population health is preferable

Technologies

C#
.NET
ASP.NET Core
ASP.NET MVC
ASP.NET
SQL Server
SSIS
Visual Studio
ALTREX
DTS
Python

Education, Experience, and Licenses

5+ years demonstrated experience as a C# Developer
3+ years of experience developing ASP.NET web applications
3+ years of ETL development
2+ years of Medical Terminology Experience
Experience with healthcare technology (MCO plans), hybrid datamining, and population health preferable

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25d ago

Senior Software Developer

TherapyNotes.com Philadelphia, PA

Philadelphia, PA

25d ago

$110k - $135k/yr Full time Backend Developer Senior .NET Core

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Job Description

TherapyNotes.com offers an onsite Senior Software Developer role in Philadelphia, PA. This position lets you influence architecture across the stack, own features from design through release, and mentor colleagues as the team grows. It is a chance to help evolve a platform used by health care professionals while maintaining a strong focus on quality, performance, and collaboration. The role sits on site in Philadelphia and comes with a competitive salary in the 110,000 to 135,000 USD per year range, paired with a comprehensive benefits package.

As part of our engineering culture, you will contribute to a transparent, open, and collaborative environment. Expect a thorough onboarding experience, a dedicated mentorship program, and a personal development budget to keep your skills sharp. If you value clean code, thoughtful architecture, and solving meaningful problems, this role provides room to make a real impact while working with a supportive team.

Benefits

Competitive salary $110,000 - $135,000
Employer sponsored health, dental, vision, life, and disability insurance
Retirement plan with company contribution
Annual company profit sharing
Personal development/training budget
Open, collaborative work environment
Extensive 2-week onboarding plan
Comprehensive mentorship program

Responsibilities

Build and maintain features across Angular, ASP.NET Core, C#, and PostgreSQL
Design and implement scalable APIs and services including service oriented and event-driven approaches
Contribute to architecture decisions focused on performance, reliability, and maintainability
Collaborate with a strong engineering team and participate in reviews and design discussions
Support and mentor developers as the team grows

Requirements

5+ years of professional software development experience
Bachelor's degree in Computer Science, Software Engineering, or a related technical field
Strong experience with Angular, .NET Core, C#, TypeScript, JavaScript, and HTML/CSS
Solid understanding of object oriented programming, design patterns, and modern architecture
Experience building APIs and working with relational databases
Excellent communication and problem-solving skills

Technologies

Angular
ASP.NET Core
.NET Core
C#
PostgreSQL
TypeScript
JavaScript
HTML/CSS

About the position

TherapyNotes is seeking a Senior Software Developer to help drive the evolution of our platform. You will work across the stack, influence architecture, and own features from design through release. If you enjoy solving complex technical problems and mentoring others, this role provides space to make a meaningful impact.

Why join us

Join a team that builds software to support mental health professionals, participates in important technical decisions, and fosters a collaborative, quality-focused engineering culture. You will contribute to a product that makes a real difference while advancing your own career in a stable, mission-driven environment.

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27d ago

Senior .NET Developer

Esolvit Inc. Remote 🌍 Remote

Remote

27d ago

$70 - $80/hr Contract Backend Developer Senior .NET Core

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Job Description

Esolvit Inc. is seeking a Senior .NET Developer for a remote contract that centers on redesigning and migrating the Educator Certification Online System (ECOS) components used in Texas educator certification. The role emphasizes migrating from Classic ASP to .NET and .NET Core, improving code maintainability, and delivering thorough documentation for the migration efforts.

Responsibilities

Architect and implement complex modules within ECOS and its subsystems
Migrate legacy Classic ASP pages, business logic, and data interactions to .NET and .NET Core following current best practices
Refactor and optimize code during migration to enhance maintainability and performance
Produce clear, comprehensive documentation for converted screens and the changes made during the migration

Requirements

10+ years of Microsoft .NET and .NET Core experience
10+ years of SQL Server (2017-2022)
8+ years of ASP.NET MVC
5+ years of Classic ASP (ASP 3.0)
5+ years designing and coding for selected customer systems
5+ years analyzing technical requirements and delivering effective technical solutions
5+ years of jQuery
3+ years of Bitbucket
2+ years of accountability application work
2+ years of licensing application work

Preferred Skills

3 years of documented experience with Atlassian Jira
2 years of experience working for or with TEA or another state or local education agency
1 year of Employment Eligibility Registries experience
1 year of Document Reporting Portals experience
1 year of integrating systems with the Texas.gov fee payment portal

Technologies

.NET, .NET Core, SQL Server (2017-2022), ASP.NET MVC
Classic ASP (ASP 3.0), jQuery
Bitbucket, Atlassian Jira

Benefits

Dental insurance
Health insurance
Life insurance
Referral program
Vision insurance

Job Details

Job title: Senior .NET Developer (With State client’s licensing application exp)
Location: Remote
Contract type: Contract
Pay rate: USD 70 - 80 per hour
Hourly pay range: $70.02 - $80.98 per hour
Duration: 12+ months
Client job number: 70127001
Licensing Application experience: 2 years required
Accountability Application experience: 2 years required

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28d ago

Senior Software Engineer – (C#/.NET & SQL -Required)(US CITIZENSHIP REQUIRED)

Index AR Solutions Williamsburg, VA

Williamsburg, VA

28d ago

$100k - $120k/yr Full time Backend Developer Senior .NET

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Job Description

Senior Software Engineer focused on back-end services using C#/.NET and SQL Server, contributing to APIs, services, and data-intensive solutions within internal and client-facing greenfield projects in a hybrid Williamsburg, VA environment.

Responsibilities

Collaborate with cross-functional teams to understand business goals, user needs, and product direction
Attend Agile and Scrum ceremonies, delivering incrementally and aiming for continuous improvement
Explain tradeoffs in technical discussions and align implementation with desired outcomes
Design, build, and maintain backend services and APIs using the Microsoft .NET stack (ASP.NET Core, C#) with emphasis on reliability, security, and performance
Design relational database schemas and implement performant MS SQL Server queries and data access patterns
Adhere to clean coding standards, secure coding practices, and SOLID design principles
Develop modern web UI components as needed with React, Vite, Next.js, or similar
Coordinate backend and frontend concerns (auth flows, API contracts, error handling, UX impact) while focusing on backend delivery
Contribute to solution design using patterns like microservices, domain-driven design, event-driven architectures, and RESTful services under senior guidance
Participate in design reviews to ensure maintainability and alignment with team standards
Integrate with Identity and Access Management providers (Entra ID, Auth0)
Connect applications to enterprise systems such as LMS, EAM, and HCM
Write and maintain unit, integration, and end-to-end tests to reduce regression risk
Develop POCs to evaluate new tools and frameworks when appropriate
Build with operational readiness in mind, including observability, resilience, and secure-by-default practices
Use Docker to streamline and standardize deployments
Apply infrastructure-as-code patterns (Bicep) to provision Azure resources like App Services, Azure SQL, Storage, Functions, and Key Vaults
Leverage message brokers such as Azure Service Bus or RabbitMQ for event-driven workflows
Follow Git branching strategies suited to the project
Contribute to CI/CD pipelines in Azure DevOps with quality gates (linting, static analysis, build/test automation)
Utilize modern AI tools responsibly to accelerate development tasks while preserving quality and security
Keep informed about AI developments that can improve engineering workflows

Requirements

Bachelor’s or Master’s degree in a related field
7+ years of professional software engineering experience with C# and modern cross-platform .NET
Strong analytical skills, problem-solving ability, attention to detail, and clear written and oral communication
Experience building and supporting back-end services (APIs) with data access and relational databases using MS SQL Server
Working knowledge of modern front-end web development (e.g., React/Vite/Next.js or similar) to contribute when needed
Experience using AI tools thoughtfully within the software development lifecycle to boost productivity while maintaining quality and security

Technologies

C#, .NET, ASP.NET Core
MS SQL Server
React, Vite, Next.js
Docker
Bicep
Azure App Services, Azure SQL Database, Azure Storage, Azure Functions, Azure Key Vault
Azure Service Bus, RabbitMQ
Entra ID, Auth0
Git, Azure DevOps
Unity, NoSQL databases, Github Copilot, Claude Code, Cursor

Benefits

401(k) with 3% Safe Harbor Contribution
Health, Dental, Vision, and Telehealth
Short and long term disability and life insurance, 100% employer paid
Pet Insurance
Ten holidays, four weeks paid time off, and four weeks paid parental leave

Experience

Azure: 5 years required
.NET: 5 years required

Education

Bachelor's degree required

Location and Work Arrangement

Commuting to Williamsburg, VA 23185 required
Work location: In person
Job location: Williamsburg, VA 23185; must be within daily commutable distance; hybrid work after training at manager's discretion