Job Overview
The Cloud Security Specialist is responsible for designing, implementing, and maintaining robust security solutions across our digital ecosystem. You will move beyond basic monitoring to engineer automated defenses and secure cloud-native environments. Your goal is to ensure our infrastructure is secure by design and resilient against sophisticated, AI-driven threats.
Key Responsibilities
- Secure Infrastructure Design: Architect and deploy Zero-Trust environments and secure cloud configurations (AWS/Azure/GCP).
- Detection Engineering: Create and fine-tune detection rules within SIEM/SOAR platforms to identify anomalies and potential breaches.
- AI Security: Monitor and protect AI/ML model pipelines against adversarial attacks, such as prompt injection or data poisoning.
- Incident Response: Serve as a technical lead during high-priority security incidents, performing root-cause analysis and forensic investigations.
- Vulnerability Management: Lead continuous automated scanning and prioritize remediation based on real-world risk and threat intelligence.
Required Technical Skills
- Cloud Security Cloud-native security tools, Kubernetes, and Container security.
- Automation Proficiency in Python, Bash, or PowerShell; experience with Infrastructure as Code (Terraform, Ansible).
- Networking Deep understanding of TCP/IP, DNS, VPNs, and Next-Gen Firewalls (NGFW).
- Experience with enterprise Security Operations platforms, including SIEM/SOAR, EDR/XDR, Cloud Security Posture Management (CSPM), and Vulnerability Management solutions.
- Frameworks NIST CSF, ISO 27001, SOC2, and MITRE ATT&CK.
Qualifications & Experience
- Education: Bachelor’s degree in Computer Science, Cybersecurity, or a related STEM field (or equivalent practical experience).
- Experience: 3–5+ years in a technical security role, with a proven track record of building rather than just monitoring systems.
- Preferred Certifications:
Google Cloud Professional Cloud Security Engineer OR
CISSP, CCSP, or equivalent security-focused credentials
Professional Cloud Architect (is a plus)
Core Interpersonal Skills
- Critical Thinking: The ability to anticipate "unknown unknowns" in a rapidly shifting AI threat landscape.
- Communication: Translating complex technical risks into actionable business insights for non-technical stakeholders.
- Crisis Management: Maintaining a calm, methodical approach during active security breaches or system outages.
Our benefits include:
- Health & Wellness: Health care coverage designed for the mind and body.
- Flexible Downtime: Generous time off helps keep you energized for your time on.
- Continuous Learning: Access a wealth of resources to grow your career and learn valuable new skills.
- Invest in Your Future: Secure your financial future through competitive pay, retirement planning, a continuing education program with a company-matched student loan contribution, and financial wellness programs.
- Family Friendly Perks: It’s not just about you. OSTTRA has perks for your partners and little ones, too, with some
- best-in class benefits for families.
About OSTTRA
Launched in 2021, OSTTRA unites four businesses that have been at the heart of post-trade evolution and innovation for over 20 years: MarkitServ, Traiana, TriOptima and Reset.
With an outstanding track record of developing and supporting critical market infrastructure, our combined network connects thousands of market participants to streamline end to end workflows – from trade capture at the point of execution, through portfolio optimisation, to clearing and settlement.
Joining the OSTTRA team is a unique opportunity to help build a bold new business with an outstanding heritage in financial technology, playing a central role in supporting global financial markets. Learn more at www.osttra.com.
