# Senior Software Engineer - Enterprise Systems

> JUST ONE | Recruitment & Executive Search agency · Athens, Greece (Hybrid) · Full-time · Posted 2026-02-18

**Workplace:** hybrid

## Description

For a leading Insurance company: Senior Software Engineer - Enterprise Systems

**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:

1.  Microsoft Certified: .NET Developer / Azure Developer.
2.  SQL Server or Database Engineering certifications.
3.  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

## Apply

[Apply at JUST ONE | Recruitment & Executive Search agency](https://apply.workable.com/justone-gr/j/F353FB88FA/apply)

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