Senior ASP.NET Developer jobs in Boston, MA

Senior Full Stack .NET Developer - Remote

Remote or New York, New York

•

Today

Job Role: Senior Full Stack .NET Developer Location: New York City, NY - Hybrid Duration: Long Term Project No C2C only W2 Job Summary: We are seeking an experienced Senior Full Stack .NET Developer to join our team in New York City. The ideal candidate will have strong full-stack development expertise with Angular 15+, C#/.NET, MS SQL Server, RESTful APIs, cloud platforms, and modern DevOps/CI/CD practices. Key Responsibilities: Design, develop, test, and maintain scalable full-stack web app

Contract

$DOE

Senior Application Developer

Remote

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13d ago

Company Description We make AI safe, confidential, and compliant for companies. Verapath is an AI platform company based in Greenwich, CT, focused on managing the risks associated with artificial intelligence systems. As AI becomes increasingly foundational to business and society, organizations must proactively address security vulnerabilities, regulatory compliance, bias, and model risk. Verapath delivers AI security, governance, risk, and compliance solutions for medium-to-large enterprises d

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Full-time

100,000 - 200,000

Senior .NET Developer in Raleigh, NC (Possible FTE conversion)

Remote

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14d ago

Job Description: Job Title: Senior .NET Developer Duration: 3+ Months Contract with Possibility of FT Conversion Job Location: Remote/Onsite (Raleigh, NC preferred location preferred) Role Overview: The Developer, Specialist performs thorough end-to-end analysis of complex business functionality, provides technical solutions for complex business requirements, and implements enterprise-grade software solutions. This role functions as an individual contributor, capable of working inde

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Contract, Third Party

Depends on Experience

Sr. Application Programmer/ Developer

Remote

•

Today

Senior Application Programmer / Developer We are seeking a Senior Application Programmer/Developer to provide advanced development and modernization support for federal IT systems, with a strong emphasis on Angular frontend development supported by .NET, SQL, AWS, and CI/CD practices. Clearance: This position supports a federal contract and requires U.S. citizenship or lawful permanent resident () status, as well as the ability to obtain a Public Trust clearance. Duties and Responsibilities Desi

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Full-time

Depends on Experience

Senior .NET Developer

Remote

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6d ago

Required Skills15+ years of experience in.NET developmentStrongC#, ASP.NET, .NET Core / .NET 6/7/8Hands-onAzureexperience: Azure Functions, App Services, Service Bus, Azure DevOps, CI/CDStrongBackend DevelopmentandMicroservices ArchitectureExpert-levelSQL Server: database design, stored procedures, performance tuningMiddle-Tier Architecture, Entity Framework, and Design PatternsStrong experience withREST APIs, Web Services, SOAP/WCFAngular or Reactexperience is a plusAI experienceis highly prefe

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Contract

Senior .NET Developer (Billing Platform)

Remote

•

Today

Role OverviewContribute to development of a billing/claims platform supporting high-volume transactional systems Build and scale backend services and enterprise applications Improve and evolve existing systems and architecture Design scalable, maintainable, and extensible solutions Participate across the full SDLC, including design, development, testing, and deployment Collaborate cross-functionally to translate business requirements into technical solutions Ensure code quality through test auto

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Full-time

Depends on Experience

Sr. Net Developer with Healthcare exp

Remote or Hybrid

•

Today

Remote position Only W2 - No Corp to Corp No OPT's please Must have " Healthcare Domain " exp Required Skills 10+ years of software development experience with C# and .NET/.NET Core. Strong experience with ASP.NET, Web API, RESTful services, and microservices. Strong SQL Server development experience. Experience with Entity Framework/Core and object-oriented programming. Strong understanding of JSON, XML, SOAP, and REST APIs. Experience with JavaScript, HTML, CSS, and modern front-end framework

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Contract

Senior Developer (C#, C++, VB, SQL) Remote From Anywhere In Colorado

Remote or Colorado

•

Today

Salary: $100,000.00 - $115,000.00 Annually Location : Statewide, CO Job Type: Full Time Job Number: EGB93608 Department: Governor's Office of Information Technology Opening Date: 08/20/2026 Closing Date: 8/25/2026 11:59 PM Mountain FLSA: Determined by Position Primary Physical Work Address: (Remote From Anywhere In CO) FLSA Status: Exempt; position is not eligible for overtime compensation. Department Contact Information: Type of Announcement: This announcement is not governed by the selection

Full-time

USD 100,000.00 - 115,000.00 per year

Developer, Senior Lead Technical

Remote

•

Yesterday

*ACENTRA HEALTH* *Developer, Senior Lead Technical Job Description* Remote US EST Time zone work schedule (Candidates in Raleigh NC preferred but not required) Role Overview The Developer, Specialist performs thorough end-to-end analysis of complex business functionality, provides technical solutions for complex business requirements, and implements enterprise-grade software solutions. This role functions as an individual contributor, capable of working independently and within teams, and serve

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Full-time

Depends on Experience

Senior Developer

Remote

•

2d ago

Senior Developer - Remote Primary Location: Remote Frankfort Kentucky V-Soft Consulting is currently hiring for a Senior Developer - Remote for our premier client Frankfort, Kentucky. Education and Experience Bachelors degree in computer science, Mathematics, or related field 5+ yrs. job experience or associate degree in computer science/information technology (related field) with 2+ yrs. job-related experience 2+ year experience configuring, implementing, and troubleshooting enterprise applic

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Contract

Depends on Experience

.NET Developer Technical Lead

Remote

•

Today

OverviewWe are looking for a hands-on Technical Lead and experienced .NET engineer to help lead the development of a newly formed Adherence Engineering Team. This team will design and build technology solutions that help medical practices improve patient vaccination adherence through targeted outreach and automation. Early pilot programs have already demonstrated strong results, showing over a 10% increase in vaccination rates when practices leverage patient outreach tools. This team will play a

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Full-time

Depends on Experience

Senior .NET Engineer-Puerto Rico Remote

Remote or San Juan, San Juan

•

Today

Position:Senior .NET Engineer Experience:8+Years Work Mode:Puerto Rico Remote Contract: 12+Month We are Lokking for a Dot net Full stack Developer-Puerto Rico Remote Frontend Development Develop and maintain responsive, modular, and high-quality Angular applications. Implement UI components using TypeScript, HTML5, CSS\LESS\SCSS, and RxJS reactive patterns. Manage global and component-level state using NgRx. Write robust unit tests using Jest to ensure high code quality and maintainability

Full-time

Senior Software Engineer — UI/UX & Front-End Engineering

Remote

•

Yesterday

Job Description: As a Senior Software Engineer with a UI/UX and front-end engineering focus, the candidate will be responsible for designing, developing, and maintaining accessible, user-centered interfaces for complex enterprise applications built on the MVC 5 technology stack.This role blends hands-on front-end coding with UI/UX design sensibility translating business and user needs into clean, usable, and fully accessible experiences while ensuring high-quality delivery within established

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Contract

60 - 70

Lead Application Developer

Remote or Bethesda, Maryland

•

Today

Analytica is seeking a Senior Developer / Task Lead to support a mission-critical, high-visibility federal government program. The ideal candidate will serve as a technical leader responsible for overseeing the design, development, and delivery of enterprise applications while ensuring alignment with federal compliance, performance, and security standards. This role combines hands-on development with leadership responsibilities across the full software development lifecycle. Analytica has been

Full-time

Remote: Full Stack Developer, Senior

Remote

•

Today

Job Description Precise Systems delivers integrated, mission-ready solutions that advance warfighter readiness and strengthen our nation's most critical defense programs. Through the power of our combined capabilities, we provide deep expertise in Advanced Engineering; Digital Transformation; Electromagnetic Warfare; Interactive Training & Simulation; Physical Sciences Research; Platform Lifecycle Support; and Foreign Military Sales. Unified by decades of trusted performance and expanded throug

Full-time

USD 120,000.00 - 145,000.00 per year

Software Engineer (Senior .NET / FullStack Engineer)

Remote or St. Louis, Missouri

•

Today

Position: Software Engineer (Senior .NET / FullStack Engineer) Location: Remote Duration: 6+ Months Contract Role Overview We are seeking highly skilled Senior .NET / FullStack Engineers with strong AWS and securecoding expertise. This role is critical in investigating vulnerability findings at the code level, determining root causes, implementing secure remediations, testing changes, and deploying them through Regions development pipeline. Candidates must demonstrate deep technical proficien

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Full-time, Part-time, Contract, Third Party

USD 60-70

Lead C#.NET Developer - COTS

Remote or Hybrid in Raleigh, North Carolina

•

Today

ONLY W2ONLY W2ONLY W2 MUST have experience working on COTS products Title: Lead Developer Location: McLean, VA 22102 (Remote) Duration: 6 Months Contract (Potential Extension) Job Description: Terms of Employment W2 Contract, 6 MonthsRemote Opportunity (US EST Time zone work schedule (Candidates in Raleigh NC preferred but not required) Overview The Developer, Specialist performs thorough end-to-end analysis of complex business functionality, provides technical solutions for complex business re

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Contract

Depends on Experience

Senior .NET Developer / Cincinnati, OH/ Candidates - REMOTE

Remote or Cincinnati, Ohio

•

Today

Greetings, We're seeking a Senior Full Stack Developer with strong backend expertise in .NET Core/.NET 8 and React.js on the frontend. Join a dynamic team building modern tech solutions for a leading financial and real estate client. Senior .NET Developer w/ React.js Application Developer Application Developer Cincinnati, OH - Hybrid Permanent IMPORTANT NOTE: This role requires the submission of a code exercise, which will take a senior developer 90 minutes (or longer) to complete. Please d

Full-time

Senior .NET Developer (Google Cloud Platform, BigQuery, Python, React, Azure Devops) with min 12+ Years Exp Required

Remote

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12d ago

Title: : Senior .NET Developer (Google Cloud Platform, Bigquery) Location: REMOTE Duration: 06+ Months Position Summary: Fingerprinting is Required for this Role. Position Overview Required .net (latest), Python, .net blazer, React JSMicrosoft SQL, Google Cloud Platform BigQueryAPI and Website developmentGoogle Cloud Platform and Azure (no AWS) Azure Devops backlogs and CICD Nice to have CRM DynamicsGoogle Cloud PlatformAirflowApigeeGoogle Cloud PlatformAzure SQLAPP ServicesGitHubPosition Over

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Contract

$60 - $70

Senior ASP.NET Developer jobs in Boston, MA, USA