L3 Application Support Engineer

Role Title: L3 Application Support Engineer
Location: Dubai, UAE (support delivery for a KSA-based enterprise client)
Employment Type: Full-time
Working Days: Sunday - Thursday (aligned to client's KSA business week)
Language: English (required), Arabic is a plus

About Micronisus
Micronisus Systems is a Dubai-based technology solutions company delivering enterprise applications, managed services, and digital transformation programs across the GCC. We build secure, scalable, and business-critical solutions for leading organizations, helping clients improve operational efficiency through modern technology and enterprise support services.

The Role
We are seeking an experienced L3 Application Support Engineer to join our managed support team supporting a leading enterprise client in Saudi Arabia.

You will take ownership of complex technical issues escalated from L2 Support, investigate application defects at the code and system levels, implement fixes, and collaborate with development and infrastructure teams to ensure the stability and reliability of business-critical enterprise applications.

What You’ll Do

• Investigate and resolve complex application and system issues escalated from L2 Support.
• Debug application code, backend services, APIs, and integrations to identify root causes.
• Develop, test, and implement bug fixes following approved deployment procedures.
• Analyze application logs, SQL queries, and system performance to troubleshoot production issues.
• Investigate complex workflow, business logic, authentication, and integration failures.
• Coordinate with infrastructure and development teams on system-level issues and configuration changes.
• Support critical production incidents and deliver timely resolutions in line with agreed SLAs.
• Perform root cause analysis and document technical fixes and preventive measures.
• Recommend improvements to application performance, stability, and monitoring.
• Support production deployments, post-release validation, and hypercare activities.
• Provide technical guidance to L2 Support and assist with knowledge transfer.

What We’re Looking For

• 5+ years of experience in software engineering, application support, or production support, including complex production troubleshooting.
• Strong programming and debugging skills with hands-on experience resolving application defects.
• Solid understanding of backend architecture, REST APIs, and system integrations.
• Strong SQL skills for database investigation and performance troubleshooting.
• Experience with Linux environments, application services, and production troubleshooting.
• Understanding of authentication, authorization, and identity management systems.
• Familiarity with deployment processes, Git, and change management.
• Experience with ticketing/ITSM platforms and SLA-driven support.
• Strong analytical skills and the ability to troubleshoot complex issues independently.
• Excellent written and spoken English.

Nice to Have

• Experience with Python, JavaScript/TypeScript, or similar backend technologies.
• Knowledge of Docker, Kubernetes, and CI/CD pipelines.
• Experience with workflow or BPM platforms.
• Familiarity with Keycloak, SSO, OAuth2, and OpenID Connect.
• Experience with application monitoring and observability tools.
• ITIL Foundation certification.
• Arabic language skills.
• Experience supporting industrial, manufacturing, or EHSS applications.
• Previous experience supporting enterprise clients in Saudi Arabia or the wider GCC.

What We Offer

• Competitive salary with an annual renewable contract.
• 30 days of annual leave.
• Medical insurance coverage.
• Opportunity to support enterprise-scale, business-critical applications for a leading industrial organization.
• Supportive, collaborative, and professional team culture.
• Opportunities for professional growth in Application Engineering, Solution Engineering, and Platform Engineering.

Apply Now
If you enjoy solving complex technical problems, debugging production systems, and ensuring the reliability of enterprise applications, we'd love to hear from you.

Join Micronisus Systems and help deliver reliable, high-quality technical support for mission-critical applications.