Senior Software Engineer
Confirmed on the employer's own hiring board on Oct 30, 2026. First seen by Alion on Oct 5, 2026.
At JTI we celebrate differences, and everyone truly belongs. 46,000 people from all over the world are continuously building their unique success story with us.83% of employees feel happy working at JTI.
To make a difference with us, all you need to do is bring your human best.
What will your story be? Apply now!
Learn more: jti.com
Department: IT Microsoft Delivery Center
Position: Senior Software Engineer
Location: Bucharest, Romania
Senior Software Engineer
What this role is about?
You will design, build and operate modern cloud-based systems on the Microsoft stack, with a focus on .NET, Azure and GitHub.
This role requires strong ownership across the full lifecycle: problem framing, system design, implementation, deployment and production operations. You’ll work on scalable, secure and maintainable systems, applying solid engineering fundamentals and using tools like GitHub Copilot pragmatically to accelerate delivery without compromising quality.
What will you do?
- Build and evolve backend services and APIs using .NET, C#, and ASP.NET Core
- Build and contribute to frontend experiences using React and TypeScrip
- Design systems for scalability, resilience, security and maintainability
- Make and drive technical decisions, balancing trade-offs and constraints
- Own services in production, including deployment, monitoring, troubleshooting and continuous improvement
- Apply clean architecture, design patterns, automated testing and code quality practices
- Work with Azure services across compute, storage, messaging, identity, and monitoring to build cloud-based solutions
- Collaborate closely with engineers, architects, product owners, and other stakeholders to deliver working software
- Review code, challenge assumptions and help raise the engineering bar
- Use AI-assisted tools, such as GitHub Copilot, effectively for coding, testing, analysis, and documentation
What are we looking for?
- Strong experience building and operating software systems in production
- Deep hands-on expertise with .NET, C#, and ASP.NET Core
- Solid understanding of APIs, distributed systems and integration patterns
- Proven experience with Azure and cloud-based application architecture
- Strong grasp of system design, design patterns, performance, reliability, and security
- Experience with automated testing, including unit and integration testing
- Ability to debug complex issues across services and environments
- Experience with frontend development using TypeScript and React, or willingness to work across the stack when needed
- Clear communication and ability to work effectively in cross-functional engineering teams
- Fluency in English
Nice to have
- Frontend experience with TypeScript and React
- Infrastructure as Code experience, preferably with Bicep
- Experience with observability, including logging, metrics, tracing and production diagnostics
- Experience with containerized workloads or cloud-native application platforms
- Experience using AI-assisted development tools in real engineering workflows
Are you ready to join us? Build your success story at JTI. Apply now!
Next Steps:
After applying, if selected, please anticipate the following within 1-3 weeks of the job posting closure: Phone screening with Talent Advisor > Assessment tests > Interviews > Offer. Each step is eliminatory and may vary by role type.
At JTI, we strive to create a diverse and inclusive work environment. As an equal-opportunity employer, we welcome applicants from all backgrounds. If you need any specific support, alternative formats, or have other access requirements, please let us know.