C# Developer jobs in Boston, MA

Hybrid in Boston, Massachusetts

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4d ago

C# DeveloperLocation: Boston, MA (Hybrid from Day 1) Duration: 6-Month Contract Job DescriptionWe are seeking an experienced C# Developer with 810 years of experience in software development. The ideal candidate should have strong hands-on experience with C# and the ability to develop, maintain, and support high-quality applications. Required Qualifications810 years of software development experience Strong hands-on experience with C# Experience with C# 5.0 Ability to work in a hybrid environmen

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Contract

Depends on Experience

Senior C# Developer

Westford, Massachusetts

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Today

Job Title: Senior C# Software Engineer (Windows Applications & Release Engineering) Role Overview We are seeking a highly skilled, hands-on Senior C# Developer to design, build, and maintain scalable, high-performance applications that power our critical business functions. In this role, you will lead the evolution of our application architecture while taking ownership of the full software release lifecycle-from core development and patching strategies to sophisticated installer packaging and d

Full-time

USD 106,100.00 - 114,400.00 per year

.Net/ C# Developer with X12 and EDI 270/271 - Remote

Remote

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Today

Must provide 2 Managerial references for this role Remote role - Must have X12 EDI AWS 8+ years software engineering experience with distributed, high-volume transaction-processing systems.Healthcare EDI/X12 exp, particularly 270/271 eligibility, Service Type Codes, and payer connectivity.Strong C#/.NET backend development, including async programming, performance tuning, resiliency, and automated testing.Experience with event-driven architectures and messaging, preferably RabbitMQ or equivalen

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Third Party, Contract

Depends on Experience

Full Stack Developer - TypeScript/Node/React - Java/C#

Boston, Massachusetts

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Today

Job Description A Boston education organization is seeking a Senior Full Stack Software Engineer to support a major application modernization initiative. This organization manages technology platforms that support education services and is investing in the transformation of critical systems to improve scalability, security, reliability, and user experience. The selected engineer will play a key role in modernizing legacy Java/Spring and .NET applications by rebuilding them using modern technol

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Full-time

$78 - $82

Senior Fullstack Developer (C#, AWS, Angular)

Remote or Hybrid in Cleveland, Ohio

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Today

Precision is seeking a Senior Full Stack Developer for a contract position supporting our Fortune 100 client. This fully remote role requires work during Eastern Time business hours and focuses on building and supporting software across the UI, backend, APIs, databases, and cloud. You will develop with C#/.NET and Angular while designing APIs and microservices. Strong AWS experience is essential, including DynamoDB, SQS, SNS, S3, Lambda, and Terraform. The role also includes technical documentat

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Contract

DOE

Senior Fullstack Developer (C#, AWS, Angular)

Remote or Hybrid in Cleveland, Ohio

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Today

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Contract

DOE

Full Stack Developer / C# .NET / Vue / Azure / Remote

Remote

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Today

A leading food services and facilities management organization is seeking a Full Stack Developer for a remote contract opportunity. This role will support application modernization initiatives and the migration of enterprise applications to Microsoft Azure, utilizing technologies including C#, .NET, Vue/Nuxt, SQL, and RESTful APIs to build and enhance business-critical solutions. What sets this opportunity apart is the chance to work on modernizing and rebuilding applications in a collaborative

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Contract

$45 - $75

Application Full Stack Developer -- API C#, ASP.NET, .NET Core, MVC

Remote

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3d ago

Dear Candidate, If below requirement suits you then please share your updated resume. New position: Application Developer/Architect Duration: 12 months 100% Remote C2C Rate: $60/hr Skills and Role: Design, develop, and support enterprise applications using Microsoft technologies and modern web frameworks. Work closely with business stakeholders to deliver secure, scalable, and high-performance solutions. Key Skills: C#, ASP.NET, .NET Core, MVCReact, JavaScript, jQuery, HTML, CSS, BootstrapSQL S

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Contract

60+

OpenLink Endur Developer / Specialist (.NET / C#)

Remote

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4d ago

Position OverviewWe are seeking an experienced OpenLink Endur Developer with a strong technical background in .NET / C# to design, develop, test, and maintain custom solutions within our Endur ETRM/CTRM platform. In this role, you will collaborate with business analysts, trade support, and risk teams to deliver robust custom OpenJVS/OpenComponents (.NET) scripts, plugins, report builders, and system integrations across energy and commodity trading desks. Key ResponsibilitiesDevelopment & Customi

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Contract

00+

Developer

Remote or Hybrid in Boston, Massachusetts

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14d ago

The U.S. District Court Clerk s Office is accepting applications for an experienced full-time Developer. The incumbent will join the Information Technology team supporting work for the U.S. District Court for the Districts of Montana and Massachusetts with a reporting structure in both districts. Representative Duties: The Developer Position duties include: Develops, tests, and maintains containerized applications. Designs, modifies, adapts and enhances existing software to improve performance,

Full-time

67,652 - 109,971

IT Application Development (Senior Specialist)

Remote or Olympia, Washington

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Today

Salary: $99,300.00 - $133,608.00 Annually Location : Thurston County - Olympia, WA Job Type: Full Time - Permanent Remote Employment: Flexible/Hybrid Job Number: 2026-06817 Department: Dept of Children, Youth, and Families Division: Information Technology Opening Date: 11/05/2026 Closing Date: 11/26/2026 11:59 PM Pacific Description Our vision is to ensure that "Washington state's children and youth grow up safe and healthy-thriving physically, emotionally and educationally, nurtured by family a

Full-time

USD 99,300.00 - 133,608.00 per year

Senior C# Software Engineer

Westford, Massachusetts

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Today

Position Overview We are seeking a highly skilled Senior C# Software Engineer to design, build, and maintain scalable, high-performance Windows applications while driving robust installation, upgrade, and release engineering practices. In this role, you will work closely with cross-functional development, QA, and product teams to deliver high-quality software releases using modern .NET technologies. You will own the MSI packaging and deployment lifecycles, influence architectural decisions, an

Full-time

USD 108,200.00 - 118,600.00 per year

AI Platform Engineer

Remote

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Today

Platform Engineer Agentic AI & Developer Platforms We are seeking an experienced Platform Engineer to join a high impact engineering team focused on building next generation AI powered developer platforms. This role will play a critical part in designing, developing, and operationalizing internal AI agent platforms, MCP servers, automation frameworks, and developer tooling that enable engineering teams to build and deploy software more effectively. The ideal candidate brings hands on experience

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Contract

Depends on Experience

Certified Microsoft .NET web Developer IV

Remote

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Today

Certified Microsoft .NET web Developer IV Primary Location: Madison, WI V-Soft Consulting is currently hiring for a Certified Microsoft .NET web Developer IV for our premier client in Madison, WI. Education and Experience Performs front-end and back-end development of web applications and web APIs (web services). (5-8+ years)Experience with ASP.net and SSRS reporting (5-8+ years)SQL Backend and stored procedure experience (5-8+ years)Development and Support experience on web-based applications

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Third Party, Contract

$63.38

Must be in Boston // Full stack .NET Developer

Boston, Massachusetts

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Today

Hi there! This role is looking for a C#/.NET developer in the Boston Downtown Crossing area. It will require 3 days per week in the office. Thanks for applying! This opportunity is with a market-leading analytics and risk intelligence organization that develops sophisticated technology used to evaluate some of the world's most complex exposures. Leveraging vast amounts of data and advanced modeling capabilities, the organization helps clients better understand the financial impact of events rang

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Full-time

$120000 - $140000

Senior C# .NET Engineer // Boston

Boston, Massachusetts

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Today

Just to put it up-front: this role requires someone who can easily commute to downtown Boston 2 times per week. Thanks for applying! A global software provider that supports postal operators and logistics organizations around the world is looking to add a Senior Software Engineer to a highly visible product team. The organization delivers technology that modernizes retail counters, delivery operations, package tracking, and sorting services through a unified platform used in mission-critical env

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Full-time

$120000 - $140000

.Net Developer

Boston, Massachusetts

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Today

Job Title: .NET Developer Duration: 12 months Location: Boston, MA Job Summary We are looking for an experienced .NET Developer to design, develop, test, and maintain scalable software applications using Microsoft technologies. The ideal candidate should have strong experience in C#, .NET Core/.NET, ASP.NET, Web API, and SQL Server. Key Responsibilities Design, develop, and maintain applications using C# and .NET technologies. Build web applications and backend services using ASP.NET Core a

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Contract, Third Party

$DOE

Senior C#/.NET Engineer // Boston Hybrid

Boston, Massachusetts

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Today

This role is looking for someone with strong full-stack development experience with C#/.NET. The position is hybrid, 2 days per week in downtown Boston. Thanks for applying! A global provider of software solutions for postal and delivery organizations is seeking a Senior Software Engineer to join a high-impact product team building the next generation of retail, delivery, and transaction processing platforms. This role is focused on a large-scale modernization initiative supporting one of the wo

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Full-time

$120000 - $140000

Senior C# .NET Software Engineer // Must be near downtown Boston

Boston, Massachusetts

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Today

Hi there, this position is only looking for someone who can commute 2x per week to Downtown Crossing in Boston. Thanks so much for applying! This opportunity is with a globally recognized provider of risk analytics, catastrophe modeling, and data-driven decision support solutions. The organization helps insurers, financial institutions, corporations, and governments quantify and manage risk associated with natural disasters, cyber threats, terrorism, pandemics, and other emerging exposures. As o

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Full-time

$120000 - $140000

.Net Developer - in person interview

Remote

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10d ago

Role: .Net Developer Location: 100% remote Duration: Long term We are looking for an experienced .NET/C# Developer with strong web services, Windows-based application development, and SQL development skills. The ideal candidate should be comfortable troubleshooting complex issues and working independently. Key Skills/experience required:.NET/C# developer with Services experience (RESTFUL, WCF, etc.).NET frameworksWindows based development (WPF, WinForms)SQL developmentAbility to troubleshoot and

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Third Party, Contract

50 - 55

C# Developer jobs in Boston, MA, USA