Senior .NET Developer

Zain Bahrain; Manama; On-site; BHD 12,000 - 24,000; Full time

Job summary

Zain Bahrain is seeking a Senior .NET Developer to lead design, development, and maintenance of robust .NET solutions across desktop apps, services, APIs, and integrations. You will collaborate with stakeholders, architects, and cross-functional teams to deliver scalable, secure, and high-performing systems, while ensuring reliability and maintainability in a dynamic telecom environment.

The role focuses on end-to-end delivery, code quality, and mentoring junior developers within a collaborative

Qualifications

• Bachelor’s degree in Computer Science or related field.
• 5+ years hands-on .NET (C#) development experience.
• Experience with desktop apps, Windows services, and ASP.NET.
• Telecom industry experience is a plus.

Responsibilities

• Design, implement, and maintain .NET applications across platforms.
• Lead API and backend service integration for high availability.
• Ensure secure, scalable REST and WCF services.
• Tune performance, diagnose issues, and optimize queries.
• Collaborate with QA, DevOps, and business stakeholders.

Skills

C#/.NET

Windows desktop

ASP.NET

WCF & REST APIs

Git

IIS

SQL Server

Education

Bachelor’s Degree in Computer Science/Engineering

Tools

Git

IIS

SQL Server

Job description

Zain is the pioneer of mobile telecommunications in the Middle East. We began life in 1983 in Kuwait as the region’s first mobile operator, and since the initiation of our expansion strategy in 2003, we have expanded rapidly. Read more here: https://zain.com/en/about-us/overview

About the Role

As a Senior .NET Developer, the individual takes a lead role in designing, developing, and maintaining robust software solutions across desktop applications, services, APIs, and integrations. They are responsible for delivering scalable and secure .NET-based systems that align with business requirements, while ensuring performance, reliability, and maintainability. The Senior .NET Developer works closely with business stakeholders, architects, and cross-functional teams to drive end-to-end solution delivery.

What We Need From You

Design,develop, and maintain .NET applications includingdesktop, console, Windows services, and web-based solutions.

Lead thedevelopment and integration of high-availability APIs and backend services.

Implement and maintain secure and scalable REST and WCF services.

Design anddeploy applications on IIS with a focus on performance tuning and load balancing.

Collaborate with business stakeholders to gather, analyze, and refine requirements.

Translate business needs into functional and technical specifications.

Perform impact analysis, scoping, and solutiondesign.

Troubleshoot application issues, conduct root cause analysis, and implement fixes.

Optimize performance of code, database queries, and application behavior.

Develop and integrate with SQL Server: tables, stored procedures, functions, views, and PLSQL where required.

Integrate systems with third-party APIs and services including TCP/IP and WebSocket-based communication.

Conduct code reviews and provide technical mentorship to otherdevelopers.

Lead planning and estimation sessions, and ensure timelydelivery of tasks.

Work with version control systems (e.g., Git) and collaborativedevelopment workflows.

Collaborate with infrastructure andDevOps teams to ensure smoothdeployments and environment readiness.

Work closely with QA for testing, validation, and bug fixing.

Engage in ongoing reporting, system monitoring, and tuning activities.

Participate in business meetings, requirement workshops, and sprint planning sessions.

Ensure security best practices are followed in applicationdesign and implementation.

Stay up to date on industry trends, emerging technologies, and recommend improvements to existing systems.

Experience or exposure to telecom systems and protocols is considered a strong plus.

Perform tasks as requested.

Qualifications and Experience

Bachelor’s Degree in relevant field ( Computer science, Programming)

5+ years of hands-on experience with .NET (C#), includingdesktop applications, Windows services, and ASP.NET.

Telecom industry experience is a plus.

Strong experience with console applications, libraries (DLLs), and service-oriented architectures.

In-depth experience with WCF and RESTful services.

Experiencedesigning load-balanced, fault-tolerant, and high-availability APIs.

Experience with version control systems (e.g., Git) and collaborativedevelopment workflows.

Experience gathering business requirements, performing impact analysis, and documentingdesign specs.

Strong experience integrating third-party services and protocols (e.g., TCP/IP, WebSockets).

Skills and Knowledge

Solid knowledge of IIS configuration, hosting, troubleshooting, and tuning.

Strong proficiency in Microsoft SQL Server: databasedesign, indexing, stored procedures, PLSQL, and views.

Proven ability to troubleshoot application, performance, and network-related issues.

Excellent communication skills and experience working directly with business users.

Strong planning and organizational skills able to manage multiple tasks and meetdeadlines.

Understanding of security principles in .NET applications.

Knowledge of reporting tools and performance diagnostics.

Equal Employment Opportunity Statement

We are an equal opportunity employer and welcome applications from individuals of all backgrounds, including persons with disabilities and those who may require reasonable accommodations to perform their duties. We are committed to maintaining an inclusive workplace and to ensuring that all employees are supported to succeed.