Threat Response Analyst Graduate at Mimecast

Mimecast is seeking a dedicated and curious Threat Response Analyst Graduate to join its world-class Messaging Security organization in Johannesburg, South Africa. In this dynamic graduate position, you will be part of a front-line cybersecurity division dedicated to providing on-demand threat resolution and intelligence. Your core mission will be to assist enterprise clients in identifying, mitigating, and neutralizing email-borne threats in real time, drastically reducing threat dwell time and enhancing customer defenses against sophisticated cybercriminals. This position operates within a global framework spanning six countries and five continents, offering an exceptional foundation for an ambitious tech graduate looking to build a high-impact career in cybersecurity.

Key Responsibilities

• Analyze complex phishing, malware, and malicious email campaigns to accurately identify malicious indicators and attack vectors.

• Categorize emerging email threats and calibrate detection signatures across spam, URL, and attachment security layers.

• Provide prompt technical advice, remediation strategies, and expert security guidance directly to enterprise customers.

• Administer security policies within the Mimecast Administration Console and recommend strategic configuration changes to clients.

• Conduct active threat research to investigate zero-day vulnerabilities and evaluate their prospective impact across the client ecosystem.

• Collaborate cross-functionally with Research & Development (R&D) teams, customer support, and third-party security vendors to refine threat detection methods.

• Identify operational bottlenecks and recommend process improvements to ensure scalable, proactive threat prevention.

• Participate actively in rotational shifts, including afternoon/evening cover and holiday support, ensuring continuous 24/7 protection.

Estimated Salary Range (Market Benchmark)

The hiring employer has not officially specified a salary for this position. Based on South African market data and industry benchmarks for a corporate IT graduate / junior cybersecurity analyst role, the estimated remuneration is approximately R15,000 – R25,000 per month. Please note that this is an industry estimate and actual remuneration will be determined by the employer based on qualifications, experience, and internal pay structures.

Why Join the Company

At Mimecast, you will become part of an elite, purpose-driven cybersecurity community committed to disrupting global cybercrime and protecting essential digital infrastructure. Mimecast fosters an inclusive, high-performance culture that values diversity, continuous learning, and innovation. Graduates benefit from deep mentorship alongside industry-leading threat researchers, exposure to enterprise-grade cloud security platforms, and genuine avenues for rapid professional advancement across international operations.

Application Strategy (Exclusive)

• Highlight DNS & Mail Protocols: Ensure your CV explicitly highlights foundational networking concepts such as DNS, MX records, SPF, DKIM, DMARC, and SMTP routing, as these are critical to Mimecast’s messaging infrastructure.

• Showcase Practical Cybersecurity Exposure: Emphasize any hands-on academic projects, home labs, CTF (Capture the Flag) challenges, or platforms like TryHackMe/HackTheBox demonstrating an investigative mindset into phishing and malicious links.

• Emphasize Analytical Communication: Clearly demonstrate your ability to articulate complex technical investigations into clear, professional, and actionable business advice.

Interview Preparation

Candidates shortlisted for this graduate role can anticipate interview questions such as:

• "Can you walk us through the step-by-step process of how an email travels from sender to recipient, and where DNS lookups take place?"

• "If an end-user reports a suspicious email containing an obfuscated hyperlink, what indicators would you inspect first to verify whether it is a credential phishing attempt?"

Sharpen your confidence and practice your responses using the YouthNextStep Interview Simulator before your interview.

How to Apply

Applicants are invited to submit their application quoting Reference: R6833. Please submit your comprehensive CV, academic transcripts, and motivational letter online. If you are browsing this opportunity through an external job board, please apply using the Quick Apply button on this page.

• A completed Bachelor’s Degree or National Diploma in Information Technology, Computer Science, Cybersecurity, or a related technical field (Essential).

• Practical or foundational academic experience in supporting and troubleshooting technology (Hardware, Software, and Networking).

• Basic understanding of email messaging infrastructure, email traffic management, and SMTP routing.

• Working knowledge of anti-spam, anti-virus, and endpoint/perimeter security solutions.

• Strong grasp of the Domain Name System (DNS) architecture and records.

• Strong verbal and written communication skills with the ability to translate technical insights into user-friendly explanations.

• Inherent curiosity regarding cyber threats, phishing mechanisms, and attack infrastructures.

• Flexibility to work afternoon/evening shifts and participate in holiday rotation rosters as required.