Senior Mobile Application Engineer (.NET MAUI / Xamarin)

At Clario, part of Thermo Fisher Scientific, we are seeking a Senior Mobile Application Engineer (.NET MAUI / Xamarin) to help design, build, and evolve the Clario App—our core mobile platform used by patients and clinical research sites across global clinical trials. This platform plays a critical role in how patients engage with research, enabling reliable data collection, improving compliance, and supporting a high‑quality trial experience.

In this role, you will develop robust, scalable mobile applications using C#, MVVM architecture, and modern cross‑platform frameworks such as .NET MAUI, building on Xamarin‑based foundations where applicable. You will take ownership of mobile solution design, contribute to architectural decisions, and continuously raise standards for code quality, performance, and maintainability.

Working closely with product, UX, quality engineering, and clinical stakeholders, you will deliver patient‑facing applications used globally—where stability, usability, and data integrity are essential to advancing life‑changing clinical research.

What We Offer
Competitive compensation

Flexible work schedules

Attractive PTO plan

Engaging employee programs

Provident Fund

Gratuity

Flexible leave plans

Remote and hybrid work options

What You'll Be Doing
Design, develop, and maintain high-quality applications using C# and the .NET ecosystem, ensuring clean, maintainable, and efficient code

Design and implement scalable software architectures using established design patterns and architectural principles to ensure systems are modular, testable, and maintainable

Develop applications using the Model–View–ViewModel (MVVM) pattern, ensuring strong separation of concerns and maintainable UI logic

Apply industry best practices including SOLID principles, clean code standards, and reusable design patterns while actively participating in code reviews

Analyze complex technical requirements and design solutions that balance performance, scalability, and maintainability

Develop and integrate RESTful APIs and external services, ensuring secure and efficient data exchange

Identify performance bottlenecks and implement improvements to optimize system responsiveness and resource utilization

Collaborate with cross-functional teams including Product, QA, and DevOps, while mentoring junior developers and contributing to engineering best practices

Contribute to architectural discussions and continuously improve system reliability, maintainability, and development standards

What We Look For
Bachelor’s degree in Computer Science, Engineering, or a related field

5+ years of professional software development experience

Proven expertise in C# and .NET frameworks

Strong experience implementing MVVM architecture

Deep understanding of software design patterns such as Factory, Singleton, Repository, and Dependency Injection

Experience designing scalable system architectures and distributed applications

Hands-on experience designing and consuming REST APIs

Strong knowledge of object-oriented programming principles

Experience working in Agile development environments

Experience with .NET MAUI, Xamarin, or cross-platform development frameworks (preferred)

Experience with performance profiling, debugging tools, and automated testing frameworks including unit, integration, or UI testing (preferred)

Strong analytical and problem-solving capabilities

Excellent collaboration and communication skills

Ability to work independently and take ownership of complex features

Interest in mentoring and guiding other engineers

Based in or able to work from India (Remote / Hybrid)

At Clario, our purpose is to transform lives by unlocking better evidence. It’s a cause that unites and inspires us. It’s why we come to work—and how we empower our people to make a positive impact every day. Whether you’re starting your clinical data career or building long‑term expertise, your work helps bring life‑changing therapies to patients faster.