Top .NET Developer Jobs in Boston, MA

Join the IT team to develop, maintain, and enhance Windows, web, web-service, and mobile payroll applications using the Microsoft .NET stack. Duties include coding (VB.NET/C#/ASP.NET), debugging, testing, collaborating with analysts, QA and operations, following Agile practices, and learning new technologies.

As a Senior Software Product Engineer, you will enhance compliance solutions through advanced software development, performance optimization, and team collaboration to ensure high-quality outcomes and user experience.

Senior .NET Developer to build a Compliance System (ORCA). Responsible for backend and frontend development using ASP.NET/C#, HTML/JavaScript, AngularJS, Bootstrap, SQL Server 2012, MongoDB, Web APIs and RESTful cloud services. Work with AWS and Pivotal products to deliver distributed systems. Contract role requiring extensive real-world delivery experience.

Develop and deliver full-stack features using .NET Core, C#, React or Angular, REST APIs, and MySQL. Responsibilities include backend and frontend development, database design, testing, performance optimization, troubleshooting, code reviews, and collaboration with distributed engineering teams. The engineer will independently own features from implementation through delivery while communicating progress, risks, and blockers.

Develop, test, deploy, and maintain .NET-centric web applications using C#, Angular 17+, and Azure. Build and consume REST APIs, work with SQL Server, source control, CI/CD pipelines, and collaborate on code reviews, debugging, performance optimization, and third-party integrations.

Design, build, and maintain production-grade .NET web applications and APIs on Azure. Own full-stack delivery from data models and SQL to front-end components, CI/CD, testing, and architecture. Collaborate with product and delivery teams, participate in code reviews, and ensure secure, observable, well-tested services.

Develop and maintain scalable software solutions, mentor developers, and integrate AI tools. Collaborate on technical solutions aligned with business goals.

Develop, maintain, and optimize backend services and APIs for a scalable healthcare platform using Node.js, Java, or .NET. Integrate third-party services, ensure performance, reliability, and security, collaborate with cross-functional teams, participate in code reviews, and work in an Agile environment to deliver high-quality server-side applications.

Design, develop, and maintain SharePoint solutions using C#, ASP.NET and client-side technologies. Implement OOTB SharePoint features, workflows (Nintex/Designer), REST/WCF services, perform code reviews, create technical documentation, and support global delivery and testing activities.

Design, develop, and maintain SharePoint solutions using C#, ASP.NET, WCF, REST and front-end technologies. Participate in requirements, design, code reviews, testing, documentation, and technical escalation. Work in a global delivery environment, ensure best practices for performance, security, and scalability, and support knowledge management and business development activities.

Develop and maintain .NET/SharePoint solutions using C#, ASP.NET, WCF/REST services, jQuery and SQL Server. Optimize database queries, implement web UI with modern HTML/CSS frameworks, follow design patterns, and collaborate in a global delivery environment.

Develop and maintain .NET/SharePoint applications using C#, ASP.NET, WCF/REST services and .NET MVC. Work with front-end technologies (HTML5, CSS, jQuery, Kendo, Bootstrap), T-SQL/SQL Server tuning, source control (VSS/TFS), and apply design patterns. Ensure performance, security, scalability and collaborate in a global delivery environment.

Design, develop, and maintain SharePoint solutions using C#/.NET and front-end technologies. Build workflows (Nintex/Designer), conduct code reviews, produce technical documentation, support testing, and collaborate across global teams to meet functional and non-functional requirements.

Design, develop, and maintain .NET and SharePoint solutions (2010/2013). Produce technical designs, code, tests, and documentation; perform code reviews; troubleshoot databases and performance; collaborate with onshore/offshore teams; and support deployment, QA, and technical escalation.

Senior .NET Software Engineer responsible for end-to-end software development using Microsoft technologies. Requires extensive experience in SDLC, design principles, technical documentation, web application development with .NET, Agile/SCRUM, Entity Framework, database design, and version control. Familiarity with project tools JIRA, TEMPO, Bitbucket, and Confluence preferred.

Develop and maintain web-based applications using .NET/C#, JavaScript, HTML/CSS, SQL and Oracle/SQL Server. Perform root cause analysis, collaborate with teams for requirements, follow Agile SDLC, present change demonstrations, and use Azure DevOps/Jira for lifecycle management. Implement and maintain Blazor components.

Design, develop, and maintain scalable ASP.NET/C# APIs and microservices and front-end interfaces (Vue.js, AngularJS) for retail omni-channel and POS platforms. Contribute to architecture, write production-quality code, troubleshoot issues, participate in code reviews, and collaborate with product, design, and QA to deliver features with minimal onboarding.

Design, develop, implement and support web applications using .NET Core. Collaborate with internal bank teams and external vendors, troubleshoot production issues, and apply strong interpersonal, leadership, and problem-solving skills.

Lead technical direction for a major product domain, reduce architectural debt, mentor engineers, standardize AI-agent workflows, and design scalable backend solutions integrating LLMs and cloud services. Drive cross-team RFCs, cookbook standards, and adopt agentic AI tooling while balancing security, quality, and delivery.

The Back End Software Engineer will design and build scalable services for a SaaS platform, collaborate with teams, and contribute to quality code and architecture discussions.

Lead design and delivery of scalable, reliable software using C#/.NET, SQL Server, React, and Azure. Own complex initiatives from design through operations, mentor engineers, improve CI/CD, observability, and apply DDD/TDD/VSA practices. Use modern APIs, microservices or modular monoliths, and AI-assisted tooling to improve delivery.

Seeking a Senior Full Stack .NET Developer to work on a social good project, with strong skills in C#, AngularJS, design, and UX. Requires 5+ years of experience.

The Staff Engineer will leverage 5+ years of experience in C#, JavaScript, and frameworks to lead and innovate solutions in a collaborative environment.

Design, build, and maintain Azure-hosted web portals, CRM integrations, and the Argus EDI platform. Implement full-stack features (UI, API, data), integrate AI/automation, participate in Azure architectural decisions, and collaborate across TPA stakeholders to deliver scalable production solutions.

The Cloud .NET Developer will design, develop, and implement cloud-based enterprise web services, focusing on the .NET framework and working with teams to meet requirements through agile methodologies.