CYBERSECURITY & DIGITAL FORENSICS · SINGAPORE

Hi, I'm Esther.

Exploring technology, securing the digital world.

I'm a Cybersecurity and Digital Forensics student at Temasek Polytechnic, gaining hands-on industry experience in IT security, digital investigations, and infrastructure management.

BASED IN SINGAPORE PORTFOLIO / 2026

A little about myself.

I am currently pursuing a Diploma in Cybersecurity and Digital Forensics at Temasek Polytechnic and completing my internship at Entrust Network.

Through my academic studies, I have developed foundational knowledge in network security, digital investigations, system administration, and cybersecurity principles.

My internship has provided opportunities to explore real-world IT infrastructure and security challenges. I have been involved in researching security best practices, preparing technical documentation, and supporting infrastructure-related projects.

I enjoy exploring new technologies and learning how systems work. I believe that continuous learning, curiosity, and hands-on experience are important qualities in cybersecurity.

My goal is to pursue higher education and further strengthen my technical expertise. In the future, I aspire to contribute to Singapore's security through a career at the Home Team Science and Technology Agency (HTX).

Education
Temasek Polytechnic
Diploma
Cybersecurity & Digital Forensics
Internship
Entrust Network
Location
Singapore

Skills & technologies.

My technical knowledge has been developed through academic coursework, practical exercises, independent learning, and industry experience.

01 — SECURITY

Cybersecurity & Digital Forensics

Familiar with digital evidence acquisition, forensic investigation, security assessment, vulnerability scanning, and analysing potential security threats.

Kali Linux Autopsy FTK Imager Burp Suite
02 — NETWORKING

Networking & Infrastructure

Knowledge of network configuration, routing, switching, VLANs, subnetting, packet analysis, network monitoring, and troubleshooting.

Wireshark Nmap Cisco Packet Tracer Zabbix
03 — SYSTEMS

Systems & Cloud Administration

Experience exploring Windows and Linux environments, cloud administration, identity and access management, endpoint security, and security configuration practices.

Microsoft 365 Google Workspace Windows Server Ubuntu VirtualBox
04 — PROFESSIONAL

Professional Skills

Strong interest in problem-solving, technical documentation, teamwork, communication, research, and continuous professional development.

Documentation Research Teamwork Leadership

Featured projects.

A collection of projects that demonstrate my interest in cybersecurity, infrastructure, and technology. Select a project to explore its objectives, technical scope, and lessons learned.

01
CYBERSECURITY · INTERNSHIP

Google Workspace Security Assessment

Developed a security assessment checklist to help engineers evaluate and strengthen Google Workspace environments. The project covered identity protection, administrator privileges, email security, Google Drive data protection, and endpoint management.

Google Workspace CIS Benchmark Security Hardening
02
INFRASTRUCTURE · INTERNSHIP

Zabbix Monitoring Migration

Assisted with migrating network access point monitoring from Site24x7 to Zabbix, exploring how centralised monitoring supports infrastructure visibility, device availability, and troubleshooting.

Zabbix Site24x7 Monitoring
03
INNOVATION · 2025

MindMatch — Mental Wellness Application

Collaborated with a team to develop a digital prototype for a mental wellness application designed to connect users with support resources, professionals, and peer communities. The project received second place at TP INNOV8 2025.

Innovation Digital Prototyping Team Collaboration

Work experience.

My professional experiences have helped me develop technical awareness, adaptability, teamwork, and an understanding of workplace responsibilities.

SEP 2026 — PRESENT

Entrust Network

IT Intern

Gaining practical exposure to IT infrastructure, cybersecurity, cloud administration, and technical support. My work includes researching security best practices, developing administrator documentation, supporting monitoring projects, and exploring security configurations for enterprise environments.

PART-TIME EMPLOYMENT

UNIQLO

Retail Associate

Adapted quickly to digital inventory tracking systems, using handheld devices to manage stock efficiently with minimal supervision. Maintained accurate inventory records through scanning, verification, stock auditing, and reconciliation while identifying discrepancies. Demonstrated strong attention to detail, teamwork, and communication skills by assisting customers with product enquiries and promotions while supporting smooth daily operations.

PART-TIME EMPLOYMENT

Shopee

Warehouse Assistant

Performed inventory migration by relocating products across storage locations while ensuring accurate system updates and efficient space utilization. Utilized handheld scanners and warehouse management systems to track inventory in real time. Conducted cycle counts to verify stock accuracy, identify discrepancies, and maintain data integrity. Supported backend inventory operations by validating product locations, recording stock movements, and maintaining organized digital records.

Achievements & recognition.

Milestones that reflect my dedication, creativity, and commitment to learning.

OverTheWire

Achieved Bandit Level 20 for OverTheWire and aims to complete Bandit Level 34 by the end of Year 2026

TP INNOV8 — 2nd Place

Awarded second place at TP INNOV8 2025 for MindMatch, a mental wellness application prototype developed collaboratively with my team.

Good Leadership and Service Award

Awarded for demonstrating leadership qualities, service to communities and schools, excellence in non-academic activities, and good conduct

Leadership & responsibilities.

Opportunities that have strengthened my leadership, communication, teamwork, and organisational skills.

01 — CO-CURRICULAR ACTIVITIES

Head of Band CCA

Led band rehearsals and sectionals, coordinated practices, and mentored junior members to support their development and performance readiness. Represented the school in the Singapore Youth Festival (SYF).

Leadership Mentorship Team Coordination
02 — CLASS LEADERSHIP

Class Chairperson

Served as a representative for the class, facilitating communication between teachers and students, supporting classroom organisation, and assisting with class-related activities.

Communication Responsibility Organisation

Certifications & professional development.

A collection of professional training and completed courses reflecting my continuous learning in cybersecurity, digital forensics, cloud computing, and emerging technologies.

Fortinet Training Institute

Oct 2026

Fortinet NSE 1

Fortinet Training Institute

Oct 2026

Fortinet NSE 2

Fortinet Training Institute

Oct 2026

Fortinet NSE 3

Fortinet Training Institute

Oct 2026

Introduction to Next Generation Firewall 1.0

Fortinet Training Institute

Oct 2026

Cybersecurity and Cloud Fundamentals 1.0

Fortinet Training Institute

Cybersecurity & Technology

Nov 2026

Incident Response, Collaboration & Accreditation

CodeRed

Nov 2026

Cloud Computing Fundamentals

IBM SkillsBuild

Oct 2026

Getting Started with Cybersecurity

IBM SkillsBuild

May 2025

Learning Autopsy for Digital Forensics

LinkedIn Learning

May 2025

Computer Hacking Forensics Investigator (CHFI) Cert Prep

LinkedIn Learning

Jul 2024

Career Essentials in Generative AI

Microsoft & LinkedIn Learning

Jul 2024

Introduction to Artificial Intelligence

LinkedIn Learning

Jul 2024

Learning Microsoft 365 Copilot

LinkedIn Learning

Jul 2024

Windows 11: Security

LinkedIn Learning

Jul 2024

What Is Generative AI?

LinkedIn Learning

My journey forward.

TERTIARY EDUCATION

Temasek Polytechnic

Pursuing a Diploma in Cybersecurity and Digital Forensics, with academic exposure to network security, digital forensic investigations, operating systems, and cybersecurity fundamentals.

EARLY INTEREST IN TECHNOLOGY

Secondary School

Developed an interest in technology through the Apple Education Programme, introductory HTML and Scratch programming, and opportunities to assist with IT-related activities.

FUTURE ASPIRATIONS

Higher Education & HTX

I hope to further my education in cybersecurity or a related computing discipline, deepen my technical knowledge, and eventually contribute to Singapore's security through a career at HTX.

Google Workspace Security Assessment

Researching and documenting security controls to support the assessment and hardening of enterprise Google Workspace environments.

Google Admin Console CIS Benchmark Identity Security Endpoint Management

01. Project overview

During my internship, I was tasked with developing a structured IT security checklist for Google Workspace. The purpose was to provide engineers with a reference for evaluating important security settings and identifying opportunities to improve an organisation's security posture.

The checklist covered several areas of Google Workspace administration, including authentication, administrator access, email security, data protection, endpoint management, and monitoring.

02. Project objectives

  • Identify important security controls available in Google Workspace.
  • Research recommended settings and relevant security guidance.
  • Organise controls into a clear and practical checklist.
  • Document administrator navigation paths and implementation procedures.
  • Explore the limitations of different security capabilities.

03. Technical areas researched

Identity & Authentication Security

Researched multi-factor authentication, password policies, administrator account protection, login challenges, and account recovery settings.

Gmail & Email Security

Explored SPF, DKIM, and DMARC, as well as anti-phishing, anti-spam, attachment protection, and email encryption capabilities.

Google Drive & Data Protection

Investigated external sharing restrictions, public link sharing, shared drives, download restrictions, and sensitive information protection.

Endpoint & BYOD Security

Explored device management for Android, iOS, and computers, including device enrolment, screen lock requirements, compliance settings, and remote removal of company data.

Monitoring & Administration

Researched administrator privileges, audit logs, security alerts, third-party application access, and incident response considerations.

04. My contributions

I researched security recommendations, compared them with Google Workspace administration capabilities, and organised the findings into a structured security checklist.

I also explored administrator configuration procedures and documented practical guidance for engineers, including relevant settings and navigation paths.

05. What I learned

This project helped me understand the importance of translating cybersecurity recommendations into practical administrative procedures.

I also gained a better understanding of how identity protection, email security, access controls, and endpoint management work together to strengthen an organisation's security posture.

Zabbix Monitoring Migration

Supporting the transition of network monitoring from Site24x7 to Zabbix.

Zabbix Site24x7 Networking Monitoring

01. Project overview

During my internship, I was involved in a project to migrate monitoring of network access points from Site24x7 to Zabbix.

Network monitoring plays an important role in maintaining infrastructure visibility, identifying potential issues, and supporting troubleshooting.

02. Project objectives

  • Support the transition between monitoring platforms.
  • Understand how network devices are represented in Zabbix.
  • Explore device monitoring and availability checks.
  • Support configuration and troubleshooting activities.

03. Technical concepts

Network Monitoring

Monitoring systems provide visibility into device availability and operational status, helping IT teams identify and investigate potential infrastructure issues.

Device Integration

Monitoring platforms require appropriate device configuration, connectivity, and monitoring methods to collect useful information.

Troubleshooting

Troubleshooting involves examining monitoring configuration, device connectivity, and the availability of expected monitoring data.

04. My contributions

I assisted with the migration process and gained practical exposure to configuring and understanding network monitoring within Zabbix.

05. What I learned

This project strengthened my understanding of infrastructure monitoring, the importance of accurate device information, and how monitoring tools support IT operations.

06. Project Documentation

MindMatch

A mental wellness application prototype developed through teamwork and human-centred innovation.

Innovation Prototyping Collaboration TP INNOV8

01. Project overview

MindMatch was a team project focused on exploring how digital technology could improve access to mental wellness support.

The concept involved creating a platform where users could discover mental health resources, connect with professionals, and access peer support.

02. Project objectives

  • Explore challenges related to accessing mental wellness support.
  • Develop a digital solution concept.
  • Collaborate on application prototyping.
  • Present the proposed solution and its potential benefits.

03. My experience

Working on MindMatch gave me opportunities to collaborate with team members, develop ideas, consider user needs, and contribute to a shared project outcome.

04. Achievement

Our project was awarded second place at Temasek Polytechnic's INNOV8 2025.

05. What I learned

This experience helped me appreciate the importance of teamwork, communication, creative problem-solving, and considering user needs when developing technology solutions.