AS400 Security Engineer

A leading financial institution in Kuala Lumpur is seeking an AS400 Security Engineer to join their Infrastructure Security Engineering team. This pivotal role offers you the opportunity to design, implement, and support security solutions across AS400 and Mainframe platforms, ensuring robust protection for critical banking systems. You will be at the forefront of maintaining security configuration standards and providing technical assurance for systems managed by infrastructure and platform teams. The organisation is committed to fostering a supportive environment where your expertise will be valued, and your professional growth encouraged through ongoing training opportunities and inclusive workplace practices. If you are passionate about security engineering and eager to make a meaningful impact within a collaborative team, this position provides the perfect platform for you to thrive. * You will play a key part in shaping the security landscape of AS400 and Mainframe platforms, contributing directly to the safety and reliability of essential banking operations. * The organisation offers flexible working opportunities, generous pension contributions, and access to continuous training programmes designed to help you expand your skills and advance your career. * You will be joining a knowledgeable team that values collaboration, dependability, and supportive leadership, ensuring you have the resources and encouragement needed to succeed.

What you'll do:

As an AS400 Security Engineer based in Kuala Lumpur, you will be entrusted with safeguarding mission-critical banking platforms through expert design, implementation, and support of advanced security solutions. Your daily activities will involve collaborating with cross-functional teams to ensure seamless integration of infrastructure security measures while proactively identifying areas for process improvement through automation. You will be responsible for maintaining comprehensive documentation that underpins operational excellence as well as responding effectively to audit requests. Success in this role requires a commitment to upholding rigorous standards of technical assurance while nurturing strong working relationships across departments. Your ability to contribute innovative ideas during product research phases will help drive forward new initiatives that strengthen overall system resilience.

• Design, develop, deploy, maintain, and enhance infrastructure security capabilities specifically tailored for AS400 and Mainframe platforms within the bank’s technology ecosystem.
• Support day-to-day operations of the bank’s comprehensive security suite of products with a particular focus on AS400 and Mainframe environments.
• Manage and execute all security-related change requests associated with AS400 and Mainframe systems, ensuring compliance with internal policies and regulatory requirements.
• Develop and maintain detailed documentation including Security Standards, Access Control Baselines, operational processes, and best practice guidelines for system administrators.
• Identify automation opportunities for AS400 System & Security Administration to improve efficiency, accuracy, and reliability across all related processes.
• Collaborate closely with Business and Systems Services teams to align infrastructure and application requirements with GIS-managed security solutions.
• Provide production support and monitoring services to ensure control efficacy, solution reliability, and rapid response to any emerging issues or threats.
• Conduct product research, define technical requirements, and perform Proof of Concept exercises for new security initiatives aimed at enhancing system resilience.
• Contribute actively to the development and maintenance of AS400 security policies, standards, and procedures to ensure regulatory compliance as well as alignment with industry best practices.
• Respond promptly to audit and regulatory requests by providing timely and accurate information that demonstrates adherence to established controls.

What you bring:

To excel as an AS400 Security Engineer in this organisation, you will bring a solid foundation in engineering or computer science complemented by hands-on experience in AS400 Security Administration. Your background should include project management exposure—ideally involving AS400 systems—and familiarity with relevant programming languages. A deep understanding of regulatory frameworks such as MAS TRM or PCI DSS is crucial for navigating compliance challenges confidently. Beyond technical expertise, your interpersonal strengths—such as clear communication, empathy towards colleagues’ perspectives, and willingness to collaborate—will set you apart. You should possess a process-oriented approach that enables you to document procedures meticulously while remaining adaptable enough to respond quickly when circumstances change. Your ability to manage time efficiently ensures that deadlines are met without compromising quality; meanwhile your analytical thinking helps resolve complex problems thoughtfully. Team management experience further enhances your suitability by demonstrating your capacity for nurturing talent within an inclusive environment.

• Diploma or Degree in Engineering, Computer Science, IT or Cyber Security from a recognised educational institution is required for this role.
• Professional security-related qualifications such as CISSP, CISA or CISM are favourable but not mandatory; candidates with equivalent experience are encouraged to apply.
• At least five years’ proven experience performing AS400 Security Administration or managing AS400 Application systems within large organisations is essential.
• Demonstrated experience in managing projects—preferably those related to AS400—is highly desirable for this position.
• Hands-on proficiency with AS400-related programming languages is expected so you can contribute effectively from day one.
• Comprehensive understanding of regulatory requirements such as MAS TRM or PCI DSS is necessary for ensuring compliance across all activities.
• Excellent communication skills are vital for sharing knowledge clearly within teams as well as when liaising with external stakeholders or auditors.
• Leadership abilities combined with a collaborative mindset are important for supporting team members and driving shared success.
• Process awareness coupled with strong analytical problem-solving skills will enable you to identify risks early and propose effective solutions.
• Effective time management alongside organisational skills will help you balance multiple priorities while maintaining high standards of work.

What sets this company apart:

This organisation stands out due to its unwavering commitment to creating an inclusive workplace where every team member feels supported in their professional journey. Employees benefit from flexible working arrangements that accommodate diverse needs while generous pension contributions provide long-term financial peace of mind. The company invests heavily in training opportunities so you can continually expand your skillset alongside knowledgeable colleagues who value collaboration over competition. Supportive leadership fosters an environment where ideas are welcomed regardless of background or seniority; everyone has a voice in shaping future strategies. The culture emphasises dependability—both in terms of delivering secure solutions for clients and supporting each other through challenges—which makes it an ideal setting for those who appreciate teamwork above all else. By prioritising both personal growth and collective achievement, this organisation ensures that employees remain engaged while making meaningful contributions toward shared goals.

What's next:

If you are ready to take the next step in your career as an AS400 Security Engineer within a collaborative environment that values your expertise—apply now!

Do note that we will only be in touch if your application is shortlisted.

Agensi Pekerjaan Robert Walters Sdn Bhd
Business Registration Number : 729828-T
Licence Number : JTKSM 423C