Principal Full Stack Engineer - .NET​/C#

At Capgemini Engineering, the world leader in engineering services, we bring together a global team of engineers, scientists, and architects to help the world’s most innovative companies unleash their potential. From autonomous cars to life-saving robots, our digital and software technology experts think outside the box as they provide unique R&D and engineering services across all industries. Join us for a career full of opportunities.

Where you can make a difference. Where no two days are the same.

About the role you’re considering

We are seeking a Principal Full-Stack Engineer to lead the design, development, and delivery of a cloud-based platform that enables secure monitoring, connectivity, and remote management of medical devices. This role serves as a technical leader across software engineering teams, driving architecture, innovation, and engineering excellence while ensuring compliance with regulatory and cybersecurity requirements.

The ideal candidate combines deep expertise in cloud-native application development, IoT/IoMT technologies, and modern software architecture with a hands-on approach to coding, mentoring, and cross-functional collaboration.

Location Onsite in Andover, MAYour role

Lead the end-to-end architecture, design, development, and implementation of a cloud-based medical device monitoring and control platform.

Design and develop scalable, highly available microservices, APIs, and backend services supporting medical device connectivity and remote management.

Architect and implement IoT/IoMT solutions utilizing AWS IoT Core, MQTT, secure device communications, and telemetry processing.

Develop high-performance data solutions leveraging Amazon DynamoDB, relational databases, and event-driven architectures.

Build secure RESTful APIs, event-processing pipelines, and distributed systems capable of processing high volumes of device-generated data.

Partner with Product Management, Quality, Security, Regulatory, and Engineering teams to deliver compliant, secure, and scalable solutions.

Provide hands-on technical leadership through coding, debugging, performance optimization, code reviews, and mentoring.

Lead architectural decision-making focused on scalability, resiliency, fault tolerance, observability, and disaster recovery.

Conduct system risk assessments, threat modeling, and cybersecurity reviews for connected medical device solutions.

Translate business requirements into technical roadmaps and scalable technology solutions.

Your skills and experience8+ years’ experience designing and developing enterprise-scale cloud-native applications and distributed systems.

Bachelor’s degree in Computer Science, Information Technology, Software Engineering, or a related discipline required.

Strong expertise with .NET/C#, RESTful APIs and microservices architecture

Deep knowledge of AWS services, including IoT, compute, networking, security, data, and monitoring capabilities.

Experience building IoT/IoMT platforms, device connectivity solutions, and telemetry processing systems.

Proven ability to design scalable, highly available, and secure cloud architectures.

Expertise with relational and No

SQL databases, including Amazon DynamoDB.Experience implementing identity and access management solutions using OAuth 2.0, OpenID Connect, and SAML.Preferred experience

Experience developing software for medical devices or healthcare technology.

Familiarity with FDA regulations, cybersecurity guidance, and quality system requirements.

Experience with event-driven architectures, large-scale cloud platforms, and AI-enabled solutions.

Familiarity with modern front-end frameworks such as React or Angular.

Understanding of Dev Ops practices, CI/CD automation, observability, and infrastructure governanceAWS…