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Haritiana Rajohnson

@haritianarajohnson

AI tester focused on safer AI systems; built an n8n workflow that scores leads and drafts personalized follow-up emails.

Madagascar

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What I'm looking for

I’m looking to help make AI systems safer by finding failure modes through careful testing, evaluating behavior across varied and incomplete inputs, and documenting findings clearly.

My AI-Powered Lead Follow-Up Automation project uses n8n and Gemini to assess website leads, assign Hot, Warm, or Cold classifications and scores, and draft personalized emails. I added conditional routing so the team is alerted on Slack only for Hot leads.

I wrote prompts requiring structured JSON and instructing the model to treat missing information as unknown rather than inventing it. I tested the agent with partial submissions and other unexpected inputs.

At MGBI, I designed and implemented a system to secure Remote Desktop Protocol access. I also maintained Proxmox servers, backups, and virtual machines, and migrated data between servers.

My other projects explore chatbot rule-following and securing OpenClaw with restricted SSH access, a firewall, Tailscale, and encrypted credential storage. I’m motivated to find AI failure modes before they cause harm, and I bring a security-minded approach to testing and documentation.

Experience

Work history, roles, and key accomplishments

Network and System Administrator Intern

MGBI

Dec 2023 - Jun 2024 (6 months)

Designed and implemented a protection system to secure Remote Desktop Protocol (RDP) access, and resolved hardware and software issues for users via remote tools. Maintained servers, backups, and virtual machines on Proxmox, and configured email accounts and migrations.

RDP Security Any Desk Proxmox Server Maintenance Backup Email Configuration Technical Documentation