SOFTWARE · AI · SECURITYOPEN TO OPPORTUNITIESOPEN TO OPPORTUNITIES
HI, I’M YAFET.
I build AI tools and secure web applications. My background is in software engineering and cybersecurity. I’m open to engineering roles and graduate research.
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About me
Yafet ZerihunSoftware & Security
I’m a software and cybersecurity engineer based in Addis Ababa. I work on AI integrations, backend systems and application security. I like making useful tools and understanding where they can go wrong.
Outside my engineering work, I study machine learning and carry out security research through authorized bug bounty programs. I want to bring that practical experience into graduate research.
Built Keycloak identity management with role-based access and SAML / OpenID Connect integrations.
Managed cloud identity policies across Okta, AWS IAM and Azure AD, including MFA and least-privilege access.
Used Splunk, Wazuh and Security Onion to investigate security events and support incident response.
Remote
Integrated AI features into a platform serving about 400 organizations.
Developed backend features and APIs with NestJS, PostgreSQL and Redis caching.
Debugged production issues and supported backend integrations, deployments and reliability.
Remote
Built internal security tools, including a password manager, and trained staff on phishing and account security.
Reviewed access controls and data protection against PCI DSS and ISO 27001 requirements.
Managed Microsoft 365 and Azure AD security, including MFA and staff access.
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What clients say
GOOD WORK STARTS WITH GOOD PEOPLE
“
He consistently delivered high-quality frontend work, asked smart clarifying questions, and stayed organized throughout the project. I’ve already re-hired him for the next phase and would absolutely recommend him to others.
SarahFounder, ShopLatte
Collaborating with Yafet was an absolute pleasure. His professionalism, promptness, and dedication to delivering exceptional results were evident throughout our project.
Peter RogovSenior Software Engineer, WFP
Yafet has been instrumental in transforming Imperial Produce’s operations. His expertise across development and security, combined with a dedication to excellence, delivered a seamless system that improved our service and efficiency.
Iván GodínezOwner, Imperial Produce
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07 / WORK & RESEARCH ENQUIRIES07 /WORK & RESEARCH ENQUIRIESLET’S TALK