Hybrid Senior Software Engineer – Enterprise Systems

at JUST ONE | Recruitment & Executive Search agency

• Job title: Senior Software Engineer – Enterprise Systems
• Job type: Full Time
• Experience level: Senior
• Salary: Not specified
• Degree requirement: Bachelor's Degree
• Tech skills: Azure, Cloud, Jenkins, SOAP, SQL, .NET
• Location requirements: Hybrid, Athens, Greece

About the role

• Senior Software Engineer developing and maintaining .NET applications for a leading Insurance company. Collaborating on system architecture improvements and modernization initiatives.

Responsibilities

• Design, develop, and maintain enterprise applications using .NET technologies (C#, VB.NET).
• Modernize and enhance legacy systems to improve performance, stability, and maintainability.
• Develop and support client/server applications in remote and multi-user environments.
• Troubleshoot and resolve issues related to database connectivity, concurrency, and system performance.
• Build and maintain REST, SOAP, and batch integrations with internal and external systems.
• Ensure reliable and accurate data exchange across enterprise platforms.
• Optimize SQL Server databases, stored procedures, and complex queries.
• Support transactional and analytical workloads in large-scale database environments.
• Provide production support, incident resolution, and root-cause analysis for critical systems.
• Implement secure authentication and access control mechanisms aligned with compliance standards.
• Contribute to system architecture improvements, modularization, and modernization initiatives.
• Collaborate with business teams, vendors, and engineering peers while supporting CI/CD and development best practices.

Requirements

• Bachelor’s degree in Computer Science, Software Engineering, Information Systems, or related field.
• Master’s degree (preferred) in Information Technology, Software Engineering, Information Security, or related STEM discipline.
• Additional academic or professional certifications considered an asset:
• Microsoft Certified: .NET Developer / Azure Developer.
• SQL Server or Database Engineering certifications.
• Certifications related to systems security, compliance, or cloud technologies.
• Experience with CI/CD pipelines (e.g., Jenkins), version control (Git), scripting, and automation.
• Familiarity with secret management tools, remote deployment systems, and monitoring dashboards.
• Comfort with modern FE/BE stacks used across enterprise environments.
• Strong analytical and debugging ability, especially in large legacy systems.
• Capability to manage complexity and drive improvements without disrupting critical operations.
• Effective communication with technical and business audiences.
• High ownership mindset and ability to work under pressure.

Benefits

• Competitive compensation package
• Career development and growth opportunities