Senior Application Support Engineer Client Platform

Our client is seeking a technically strong Senior Application Support Engineer to take end-to-end ownership of enterprise client deployments and complex production issues. This is not a traditional help-desk role; the successful candidate will work across C# Windows Linux networking and Azure observability to diagnose problems in environments outside of direct organisational control.

Key Responsibilities

• Act as the primary technical point of contact for enterprise clients experiencing application and deployment issues.
• Own remote support cases from initial triage through verified resolution and provide clear written root-cause summaries.
• Lead remote installations upgrades and post-deployment validation within corporate environments.
• Diagnose issues across the application desktop client server application and surrounding infrastructure.
• Read and interpret C# application code stack traces and logs to identify probable root causes.
• Diagnose and Electron issues using browser DevTools including renderer/main-process failures IPC issues packaging code signing and auto-updates.
• Troubleshoot Server Connect application across Windows and Linux environments.
• Investigate firewalls proxies certificate trust chains TLS allowlisting and network-path issues.
• Use Azure Monitor and Log Analytics to investigate telemetry and operational issues.
• Develop PowerShell and/or Bash scripts to automate recurring diagnostics.
• Distinguish between configuration environment and genuine product issues and escalate with structured reproduction information where required.
• Identify recurring problems and drive permanent improvements through product changes documentation or installation processes.
• Contribute to small bug fixes and stability improvements across C# and secondarily Angular.
• Participate in occasional escalation support for confirmed client incidents outside standard South African business hours.
• Contribute to Azure networking discussions and feed recurring technical issues into engineering planning.
  

Essential Requirements

• 5 years experience in technical support solutions engineering platform engineering or a related technical role.
• At least 2 years client-facing experience.
• Hands-on C# experience sufficient to read debug and interpret application code stack traces and logs.
• Strong and Electron diagnostic experience.
• Experience debugging Electron main/renderer processes IPC packaging and auto-update issues.
• Working knowledge of Angular including components services routing and state management with the ability to make small bug fixes.
• Comfortable working from the command line across both Windows and Linux.
• Experience installing configuring and applications in Windows and/or Linux environments.
• Proven experience diagnosing enterprise networking issues involving firewalls proxies certificates PKI TLS allowlisting and network paths.
• Proficiency with Azure Monitor and Log Analytics.
• Experience conducting remote installations and technical troubleshooting sessions with enterprise IT teams.
• Strong written and verbal communication skills.
• Ability to take ownership of complex issues and drive them through to resolution.
  

Advantageous

• Azure networking experience including VNets NSGs private endpoints Azure DNS and Application Gateway.
• Electron packaging code signing and auto-update experience.
• Linux administration including systemd journald and package management.
• PowerShell and/or Bash scripting.
• Enterprise PKI and certificate management.
• Azure Entra ID SAML or OIDC/SSO experience.
• Basic SQL knowledge.
• Azure certifications such as AZ-900 AZ-104 or AZ-204.
  

Only shortlisted candidates will be contacted.
Submit your CV to or call .
Visit our website for more exciting career opportunities: will only be conducted with short listed candidates. Should you not hear from us within 4 days please consider your application unsuccessful.