Top Senior .NET Developer Jobs in Boston, MA

The .Net Developer will focus on P&C claims development and DCT claims, requiring a minimum of 5 years of relevant experience.

The Sr. .NET Developer will work on new web-based applications, developing from user stories in 2-week sprints, both independently and in teams.

Senior full‑stack engineer focused on .NET and UI/UX modernization for cleared federal systems. Design and build C#/.NET enterprise apps, integrate with MS SQL/Oracle, conduct user research, create wireframes/prototypes, improve workflows and usability, and collaborate across engineering, QA, and operations within secure environments.

The Senior Software Engineer will design, build, and maintain scalable communication systems using a modern .NET stack, mentor junior engineers, and collaborate with teams.

Design, develop, and maintain .NET-based batch and event-driven applications across AWS and on-prem environments. Build scalable data parsing and validation pipelines, ensure security and compliance, participate in backlog grooming, manage full lifecycle from design to production support, troubleshoot across application code, AWS services, and on-prem infrastructure, and contribute to modernization and observability.

The Senior Backend Engineer will develop backend solutions using .NET/C# and modern architecture, focusing on cloud services and databases, while managing client projects.

As a Senior Software Engineer, you'll design and deliver high-quality solutions, collaborate across teams, mentor junior engineers, and implement scalable software systems.

Design and implement cross-platform features for KeeperChat (desktop, mobile, web). Build and maintain .NET/C# MAUI clients and React web UI, optimize performance and reliability, participate in code reviews, collaborate with product/design/backend teams, and mentor junior engineers while upholding security and code quality.

As a Senior Software Engineer, you will develop microservices, optimize data pipelines, and collaborate on engineering solutions aligned with business needs. You will mentor team members while maintaining robust security protocols and promoting best coding practices.

Lead design and implementation of scalable .NET Core + Angular applications. Communicate with stakeholders, estimate work, drive agile delivery, ensure code quality, mentor engineers, and collaborate across product, QA, and design to deliver client-facing solutions.

Senior Software Engineer II designs, develops, tests, and deploys scalable .NET-based features and ERP integrations. Responsibilities include technical design, code reviews, CI/CD pipeline management, troubleshooting, mentoring peers, and ensuring reliability, performance, and security across cloud-native Azure services.

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.

Seeking a Senior Software Developer for developing high-performance distributed systems for media workflows, including video transcoding and content delivery.

The Senior .NET Software Engineer will drive development of .NET software products, focusing on back-end engineering, code reviews, and collaborating with cross-functional teams.

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

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.

As a Senior Software Engineer, you'll develop and maintain C# applications, lead projects, mentor juniors, and contribute to community initiatives, ensuring high-quality delivery and design.

Designs, develops, and implements digital solutions by architecting and coding software applications, conducting testing and debugging, and collaborating with teams.

Design and develop scalable services/APIs using C#/.NET/.NET Core, collaborate during SDLC, mentor junior engineers, and ensure code quality.