The Role

Why Join Our Team?

What You’ll Do:

• Develop, test, and maintain complex detection signatures and rules in antispam engines (e.g., Rspamd, SpamAssassin etc)
• Monitor threat trends and adapt detection logic to keep pace with evolving attack techniques.
• Collaborate with a global team of Threat Researchers to investigate complex campaigns, share insights, and collectively improve detection efficacy.
• Automate data extraction, in-depth analysis, and the reporting of detection performance and efficacy.
• Query and analyse large datasets utilise platforms such as Clickhouse, AWS Athena etc. identify detection gaps, measure scanner effectiveness, and drive data-informed improvements.
• Participate in cross-functional projects with Product, Engineering, and Operations teams to enhance Mimecast’s overall security posture and product capabilities.

What You Bring to the Team:

• Experience in Python/Lua or other scripting languages, effectively applied to automation, data analysis, and tool development.
• Advanced SQL skills for querying, manipulating, and extracting insights from large, complex datasets.
• Excellent time management and ability to self-prioritize in a fast-paced environment.
• Able to collaborate effectively both in-office and remotely; strong written and verbal communication skills.
• A genuine eagerness to learn continuously, adapt to new challenges, and proactively share knowledge with colleagues.

What We Bring:

Join our Threat Protection team to accelerate your career journey, working with cutting-edge technologies and contributing to projects that have real customer impact. You will be immersed in a dynamic environment that recognizes and celebrates your achievements.

Mimecast offers formal and on the job learning opportunities, maintains a comprehensive benefits package that helps our employees and their family members to sustain a healthy lifestyle, and importantly - working in cross functional teams to build your knowledge!

Our Hybrid Model: We provide you with the flexibility to live balanced, healthy lives through our hybrid working model that champions both collaborative teamwork and individual flexibility. Employees are expected to come to the office at least two days per week, because working together in person:

• Fosters a culture of collaboration, communication, performance and learning
• Drives innovation and creativity within and between teams
• Introduces employees to priorities outside of their immediate realm
• Ensures important interpersonal relationships and connections with one another and our community!

Please note that if you are NOT a passport holder of the country for the vacancy you might need a work permit. Check our Blog for more information.

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Created on 12/07/2025 by TN United Kingdom