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# Senior Software Engineer - Full Stack

- **Company:** Candela Corporation
- **Location:** Marlborough, MA, United States
- **Experience:** Expert
- **Salary:** $160,000
- **Contract:** Permanent contract
- **Skills:** .NET Framework, Agile Methodology, Artificial Intelligence, Amazon Web Services, Automation of Tests, Microsoft Azure, C Sharp (Programming Language), C++ (Programming Language), Mobile Application Development, Code Review, Communications Protocols, Continuous Integration, Software Debugging, Dependency Injection, Firmware, Design of User Interfaces, Hardware-In-The-Loop Simulation, Interoperability, Model View Controller (MVC), Model View ViewModel, Object-Oriented Software Development, Open Web Application Security, Scrum Methodology, Systems Development Life Cycle, Real-Time Operating Systems, Secure Coding, Service Development Studio, Software Engineering, Verification and Validation (Software), TypeScript, Software Vulnerability Management, Web Services, Google Cloud, Blazor, Retrieval-Augmented Generation, Git, Containerization, Information Technology, Front End Software Development, Api Design, Software Version Control
- **Published:** November 7, 2026
- **Apply:** https://www.juju.com/job/1_candelacorp-3030

## About the Role

· Bachelor's degree in Computer Science, Software Engineering or a related field, or equivalent experience.
· 5+ years of experience in development, full-stack with a focus on front-end and service development.
· Web and mobile application development, with modern front-end technologies and frameworks ideally including Blazor.
· Experience developing solutions using C#/.NET and HTML/CSS/JS or TypeScript.
· Experience in web service and API development, including service-to-device communication and API design.
· Extensive knowledge of object-oriented programming and software engineering patterns such as MVC, MVVM and Dependency Injection.
· Knowledge of version control systems (Git) and Agile methodologies, with experience working in a Scrum environment.
· Working knowledge of medical device software development and standards, including IEC 62304 with experience authoring design control and traceability documentation.
· Understanding of agentic AI development practices, including retrieval, tool use, guardrails, evaluation and the risks of non-deterministic behavior in regulated products.
· Excellent problem-solving skills and a proactive attitude in tackling development challenges.
· Strong verbal and written communication skills, with the ability to collaborate effectively in a team environment and mentor others.
· Experience with cloud platforms such as Azure, AWS or Google Cloud, containerization and CI/CD pipelines
· Solid understanding of cybersecurity principles and the Secure SDLC, including OWASP ASVS, threat modeling, dependency and secret scanning, and software bills of materials.
· Experience with embedded or device integration, including firmware interfaces, device communication protocols and hardware-in-the-loop testing.
· Exposure to embedded or firmware development (C/C++, RTOS, device communication protocols) and hardware-in-the-loop testing.

## Description

The ideal candidate will possess a solid understanding of software engineering patterns and principles, along with experience in web and mobile application development.
Proficiency in C# is a must, coupled with experience with modern front-end and server-side technologies.
They will work closely with the development team and software architect to implement the vision for future development, collaborating with stakeholders as required.
**Primary Responsibilities**
· Design and develop responsive, user-friendly applications and services using modern front-end and server-side technologies.
· Collaborate with UX/UI designers to translate designs and prototypes into high-quality, accessible code.
· Implement APIs and services to support communication to device controllers and connected medical devices.
· Optimize applications for maximum speed, scalability and reliability.
· Troubleshoot and debug complex applications across the full stack.
· Write clean, efficient and well-documented code, and help develop strong coding standards and best practices.
· Lead code reviews and mentor less experienced engineers.
· Ensure the technical feasibility of UI/UX designs.
· Apply secure-by-design and secure coding practices, including threat modeling, vulnerability remediation and software supply chain integrity.
· Integrate automated tests into CI/CD pipelines and support verification and validation activities for regulated medical device software.
· Evaluate and integrate agentic AI capabilities, including tool calling, retrieval-augmented generation, guardrails and human-in-the-loop review, supported by appropriate evaluation and observability.
· Provide supporting design documentation and traceability artifacts.
· Stay up to date with emerging trends in web, application and AI development.
**Knowledge/Educational Requirements**