Rasid Sardjono
Senior IT Infrastructure & PKI Engineer
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About
Senior IT Infrastructure and PKI Engineer with extensive experience supporting enterprise-scale environments across security, infrastructure, certificate lifecycle management, and IT operations. Proven expertise in Microsoft Key Vault, DigiCert Software Trust Manager, Microsoft Certificate Authority, JAMF, AWS Route 53, and enterprise automation solutions. Skilled in designing secure and scalable infrastructure solutions, improving operational efficiency, and leading enterprise integrations across multinational organizations.
Recognized for strong troubleshooting abilities, customer-focused service delivery, cross-functional collaboration, and a proactive approach to continuous improvement.
Experience
Senior PKI Engineer - DigiCert - Cape Town, South Africa
(2020-07)
- Manage enterprise integrations with Microsoft Key Vault, JAMF, UltraDNS, and AWS Route 53.
- Administer Apache, Tomcat, NGINX, IIS, and Microsoft Certificate Authority environments.
- Implement certificate lifecycle automation and DigiCert Auto Enrollment solutions.
- Lead enterprise code signing operations for EXE, MSI, APK, RPM, and JAR packages.
- Utilize Postman and Splunk for API validation, troubleshooting, and log analysis.
- Develop Jira workflows and automation processes to improve operational efficiency.
- Collaborate with enterprise teams to strengthen security, compliance, and service delivery.
Service Desk Engineer - 3ISolutions - Cape Town, South Africa
(2019-11 - 2020-07)
- Delivered bilingual technical support to Dutch and English-speaking users.
- Resolved incidents and service requests within SLA targets.
- Provided troubleshooting for hardware, software, and network-related issues.
IT Asset Manager - Hornbach - Rotterdam, Netherlands
(2017-10 - 2018-04)
- Managed IT hardware and software lifecycle processes using ServiceNow.
- Supported procurement, licensing, and vendor management activities.
- Developed documentation and operational procedures to improve asset management.
IT Specialist - Brightwave Consulting - Rijswijk, Netherlands
(2014-05 - 2017-08)
- Provided enterprise IT support for clients including NXP Semiconductors and KB The Hague.
- Optimized SCCM 2012 R2 environments to improve deployment performance.
- Installed and maintained enterprise hardware and infrastructure systems.
IT System Administrator - Global Knowledge - Nieuwegein, Netherlands
(2012-10 - 2014-05)
- Maintained training infrastructure and workstation environments.
- Supported Pearson VUE and Prometric testing facilities.
IT Manager - The Forum - Johannesburg, South Africa
(2009-03 - 2012-10)
- Managed IT infrastructure upgrades and business continuity initiatives.
- Oversaw POS systems and vendor coordination activities.
Support Specialist - IBM - Johannesburg, South Africa
(2005-03 - 2009-03)
- Provided 1st and 2nd line enterprise IT support.
- Acted as SME for escalations and root-cause investigations.
Education
MBO 4 - IT and Management - Zadkine, Rotterdam
MBO 3 - System Administrator - Albeda College, Rotterdam
MAVO - Graphic Design - Grafisch Lyceum, Rotterdam
