Senior Full-Stack Engineer (.Net/React) - AI services (HealthTech)

About the Position

Our Client is building AI-powered capabilities - real-time transcription, automated documentation - that help hearing care professionals spend less time on admin and more time with patients.

This is a Senior Full Stack Developer role in AI Services team, focused on building and integrating AI-powered features into a cloud-based platform. Day-to-day work spans the full stack:.NET backend services and React frontends, REST APIs, event-driven microservices, and integrations with Azure-hosted infrastructure.

This is a role for engineers who value production quality and want their work to have real-world impact in healthcare.

Tech environment: C# /.NET, React, Azure Services, AKS, Service Bus, Azure SQL, Azure DevOps (Plus growing use of Python for AI tooling and experimentation)

Responsibilities

• Build and maintain full stack features end-to-end:.NET backend services and React frontends that bring AI-powered capabilities into clinician workflows.
• Integrate AI components (e.g., speech-to-text, LLM services) into Client's platform - handling the plumbing, error handling, and UX that make these services reliable in production.
• Design and implement REST APIs, event-driven services, and microservice integrations within our Azure-hosted ecosystem.
• Write clean, testable code and contribute to CI/CD pipelines, observability, and engineering quality practices.
• Collaborate closely with the Team Lead, fellow engineers, and Product to break down requirements, estimate work, and ship iteratively.
• Participate actively in a remote scrum team: sprint ceremonies, PR reviews, and knowledge sharing.

Requirements

• 5+ years experience with C# and modern.NET (.NET Core /.NET 6+)
• 3+ years experience building frontends with React (TypeScript preferred)
• Experience with backend patterns: REST APIs, async messaging, microservices
• Cloud experience (Azure preferred) and solid engineering fundamentals (clean design, testing, CI/CD)
• Comfort working autonomously in a remote, async-friendly team
• Strong communication in English (B2+)

Nice to Have

• Familiarity with Python or willingness to pick it up over time (AI tooling, evaluation, and prototyping increasingly live in Python)
• AKS/Kubernetes, Azure Service Bus, Azure SQL, Azure AI Foundry
• Experience integrating external AI/ML providers or services (speech-to-text, NLP/LLM APIs)
• Experience working in regulated domains or with sensitive data

We Offer

• Greenfield AI work with real patient impact
• Remote-first, async-friendly culture
• High engineering and product standards
• A team that values depth over hype: production quality over flashy prototypes
• A culture that values personal growth as much as business outcomes
• Long-term engagement in a stable, growing SaaS company
• Flexible environment with a flat organizational structure
• A global, diverse, and highly skilled team across Denmark, Ukraine, UK, Poland, Canada, Australia, USA, and more.

About the Company

Opinov8 is a company that values innovation and impact, focusing on developing AI-powered solutions in the HealthTech sector. We are committed to providing high-quality services and fostering a collaborative, remote-first work environment.

Locations

• Kyiv, Ukraine
• Europe
• Fully Remote

Employment Type

• Full-time