Shahan Khalid Arain is a Karachi-based Computer Science graduate with experience in Django components, Python backend services, REST API integration, relational databases, API QA, and responsive web development.
Keeps access control and data protection in scope, including age-gated controls and humanitarian data considerations.
Four factual case studies across humanitarian, academic, and product engineering. Open any card for the technical detail.
Volunteer Developer · Data Analysis Group, UNHCR Jordan · Remote
Contributed Django backend components to DigitalAAP, an AI-supported accountability platform enabling refugees to submit feedback through WhatsApp.
Implemented server-side logic for facial detection, age estimation, BERT-based text classification, and audio monitoring, integrating model inference with a front end through a unified moderation workflow.
Built responsive React components and integrated a third-party audio REST API, managing asynchronous requests, loading and error states, and state across more than ten interactive components.
Backend Developer · Remote
Built Python backend services supporting candidate and roster features, including retrieval workflows using a RAG-based knowledge source.
Five principles that shape the work before a line of feature code is written.
Principles over templates.Each decision is a trade-off made on purpose.
Humanitarian, product, quality, and freelance work — each with a concrete engineering contribution.
Data Analysis Group, UNHCR Jordan · Remote
Contributed Django backend components to DigitalAAP, a humanitarian accountability platform for refugee feedback via WhatsApp.
StandbyRoster.org · Remote
Built Python backend services for candidate and roster features, including RAG-based retrieval workflows over a curated knowledge source.
TAFSOL Technologies · Karachi
Performed functional, API, and integration checks for client applications, validated endpoints, recorded defects, and supported verification of fixes through structured QA workflows.
Independent · Karachi
Delivered responsive Shopify customisations, cross-browser CSS fixes, dynamic Liquid sections, and post-delivery defect resolution.
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