Application Support Engineer

Job Close: Apr 30, 2026

  • Full Time

  • Technology

Phnom Penh

Job Summary

Senior Application Support Engineer is responsible for 2nd line support, operational stability, and continuous improvement of critical banking applications, including collections systems, payment platforms, digital channels, and contact center solutions. The role ensures high availability, incident resolution, change governance, and proactive monitoring, while working closely with business, vendors, and internal teams.

JOB RESPONSIBILITIES

Application Support & Operations

  • Provide L2 application support for assigned banking systems with focus on availability, performance, and data integrity
  • Analyze and resolve incidents, including root cause analysis and permanent fixes
  • Support business-critical payment, collection, and digital banking processes
  • Ensure timely resolution of production issues in accordance with SLA and business priorities

Incident, Problem & Change Management

  • Manage and participate in Incident, Problem, and Change Management processes in line with ITIL best practices
  • Perform root cause analysis (RCA) and drive preventive measures
  • Coordinate with vendors, development teams, and infrastructure teams during incidents and changes

Monitoring & Observability

  • Proactively monitor systems using Kibana, Grafana, and Zabbix
  • Analyze logs, metrics, and alerts to identify performance degradation or risks
  • Define and improve monitoring dashboards, alerts, and operational runbooks

Data & Technical Analysis

  • Use SQL to analyze application data, transactions, and operational issues
  • Support reconciliation, reporting, and investigation of failed or delayed transactions
  • Assist business and compliance teams with technical analysis and evidence collection

Documentation & Continuous Improvement

  • Maintain support documentation, SOPs, and knowledge base articles
  • Identify opportunities for process automation and operational improvements
  • Support onboarding of new applications into production support

Communication & Stakeholder Management

  • Communicate clearly with business users, vendors, and internal teams
  • Provide incident updates, impact assessments, and post-incident reports
  • Participate in audits and regulatory reviews related to IT operations

JOB REQUIREMENTS

Experience

  • Minimum 5+ years of experience in Application Support / IT Operations
  • Experience in banking or financial services is a strong advantage
  • Proven experience supporting mission-critical systems in production environments

Technical Skills

  • Hands-on experience supporting will be a plus:
    • Collection / loan management systems
    • Payment systems (including Bakong and/or SWIFT)
    • Mobile / digital banking applications
    • Contact center platforms
  • SQL skills for troubleshooting and data analysis
  • Understanding of API-based integrations
  • Ability to troubleshoot API issues using tools such as Postman or similar for API testing
  • Understanding of Backend architecture (applications server, databases, integrations) and Frontend concepts (web/mobile apps, users flows, client-side issues)
  • Experience creating automation scripts to improve support efficiency (PowerShell, Python, etc)
  • Experience with monitoring and observability tools:
    • Kibana
    • Grafana
    • Zabbix

IT Service Management

  • Solid understanding of ITIL framework
  • Practical experience with:
    • Incident Management
    • Problem Management
    • Change Management

Language & Communication

  • English (Upper Intermediate) - mandatory
  • Ability to communicate complex technical issues in a clear, structured manner

Soft Skills

  • Strong analytical and problem-solving mindset
  • High sense of ownership and responsibility
  • Ability to work under pressure in a production environment
  • Team-oriented, with strong collaboration skills
  • Attention to detail and focus on operational risk

APPLY NOW

Interested candidates are invited
to send a cover letter and CV to Wing at: jobs@wingbank.com.kh
Are you ready to be part of Wing? There are a number of rewarding career options available. Successful applicants receive a competitive salary based on work experience, education, and potential. Employees can also expect a yearly raise and bonus, and enjoy benefits like access to a 24-hour hospital, surgical and personal accident insurance, good working conditions, and human resources policies in compliance with the Cambodian Labor Law.
Apply Now