Senior C#/.NET Full-Stack Engineer (Medical Devices, Hybrid)

Connexion Systems + Engineering; Northborough (MA); Hybrid; USD 160,000 - 180,000; Full time

Job summary

Connexion Systems & Engineering is seeking a Senior Full Stack Software Engineer to join our growing software team in the medical device space. You will work across the full stack, building secure, scalable applications that interface with connected devices.

The role emphasizes hands-on coding with C#/.NET, modern front-end tech, and strong architecture experience. The position is hybrid in Northborough, MA (3 days on-site, 2 days remote), offering competitive compensation ($160,000–$180,000+

Qualifications

• 5+ years of professional full-stack software development experience.
• Strong hands-on proficiency in C#/.NET development.
• Experience with HTML, CSS, JavaScript, and TypeScript.
• Experience with modern front-end frameworks; Blazor desirable.
• Experience designing, developing, and integrating RESTful APIs and backend services.

Responsibilities

• Design, develop, and maintain responsive web applications, backend services, and APIs using C#/.NET and front-end technologies.
• Develop modern front-end applications with Blazor and other frameworks.
• Build and integrate APIs and services for communication with device controllers and connected systems.
• Collaborate with UX/UI designers to translate wireframes into high-quality applications.
• Optimize performance, scalability, reliability, and maintainability; troubleshoot complex issues.

Skills

C#/.NET

Front-end development

Blazor

RESTful APIs

MVC/MVVM

Git

Agile/Scrum

Secure SDLC

Education

Bachelor's degree in Computer Science, Software Engineering, or related field

Tools

Git

Cloud platforms (Azure/AWS/GCP)

Job description

Connexion Systems & Engineering is seeking a Senior Full Stack Software Engineer to join our growing software team in the medical device space. You will work across the full stack, building secure, scalable applications that interface with connected devices.

The role emphasizes hands-on coding with C#/.NET, modern front-end tech, and strong architecture experience. The position is hybrid in Northborough, MA (3 days on-site, 2 days remote), offering competitive compensation ($160,000–$180,000+