.NET and SQL Support Engineer

Your role, your impact

As a .NET and SQL Developer, you’ll be a critical contributor to Alithya’s Digital Applications Support team, ensuring the reliability, performance, and continuity of a high-profile application used to monitor equipment status within the nuclear industry. You’ll support mission-critical systems that demand high availability, data accuracy, and operational stability.

This role combines deep technical expertise, independent problem-solving, and close collaboration with internal teams and clients to resolve complex application, infrastructure, and database challenges in a highly regulated environment.

Your day-to-day

• Provide ongoing application and production support for a mission-critical solution used in the nuclear industry;

• Analyze, troubleshoot, and resolve complex application, infrastructure, and database issues across environments;

• Develop, debug, and maintain application components using Visual Studio and VS Code;

• Support and enhance integrations with back-end data platforms including SQL Server, NoSQL, and Big Data stores;

• Perform root-cause analysis and implement long-term fixes to ensure system stability and performance;

• Monitor application health, database performance, and infrastructure reliability;

• Collaborate closely with cross-functional teams, including development, DevOps, infrastructure, and client stakeholders;

• Participate in incident management, change management, and release support activities;

• Work independently with minimal supervision while delivering high-quality, reliable outcomes.

Keys to your success

• Bachelor’s degree in computer science, information technology, or a related field (or equivalent professional experience);

• Minimum 5 years of experience in a .NET developer or application support role;

• Hands-on experience with C#, .NET, and Angular-based web applications;

• Experience with Azure cloud services, including deployment, scalability, and high-availability architectures;

• Solid expertise in SQL Server database administration, including performance tuning, optimization, backup/recovery, and security;

• Proficiency across front-end, middle-tier, and back-end application layers;

• Strong understanding of MVC, MVP, MVVM architectures, microservices, Entity Framework, and LINQ;

• Familiarity with DevOps practices, CI/CD pipelines, and infrastructure automation tools;

• Proven ability to diagnose and resolve complex infrastructure and database issues under pressure;

• Excellent analytical, problem-solving, and decision-making skills;

• Strong communication skills with the ability to collaborate effectively with technical and non-technical stakeholders.

Extra edge

• SQL Server and Azure certifications;

• Experience supporting applications in highly regulated or safety-critical industries;

• Exposure to monitoring, logging, and alerting tools for production environments;

• Prior experience in 24/7 production support or on-call support models;

• Ability to work in client-facing environments with a strong service mindset.

Language skills

• English: Proficient