Khawaja
Fashi
I build the part of the app nobody sees — until it breaks. Node.js, Python, and PostgreSQL, shipped async, secured properly, and never requiring a follow-up Slack message.
Node.js
Python
PostgreSQL
Redis
Docker
MySQL
Prisma
Git
Linux
Postman
Slack
Jira
NotionNode.jsPythonPostgreSQLRedisDockerMySQLPrismaGitLinuxPostmanSlackJiraNotionNode.jsPythonPostgreSQLRedisDockerMySQLPrismaGitLinuxPostmanSlackJiraNotionNode.jsPythonPostgreSQLRedisDockerMySQLPrismaGitLinuxPostmanSlackJiraNotion
2+ years building robust backend architectures.
Operating with full autonomy across remote and asynchronous environments, I specialize in building high-performance systems in Node.js, Python, and PostgreSQL.
"Slashed backend API response time from ~450ms to under 120ms by rewriting legacy N+1 queries."
Expert in structured written documentation and cross-timezone collaboration. CLEAN CODE + EXPLICIT COMMUNICATION.
Backend Engineer
Quem Systems InternationalOperating with full autonomy across PKT and EST time zones, architecting scalable infrastructure.
Architected a Redis-based caching layer independently, reducing database read load by 45% and cutting p95 response times by 160ms — designed and shipped asynchronously with zero real-time supervision.
Containerized all backend microservices using Docker, standardizing environment parity across a distributed team and reducing onboarding setup times from 4 hours to 10 minutes.
Extended RBAC middleware to enforce subscription guards on 42 endpoints, independently fixing a critical privilege gap and detailing the resolution via a structured documentation write-up on Notion/GitHub.
Delivered 14+ high-priority features across 4 development sprints entirely async, driving progress across PKT and EST time zones through clean documentation, explicit Slack updates, and thorough PR reviews.
Backend Intern
Quem Systems InternationalOptimized legacy systems and implemented security protocols for mission-critical infrastructure.
Slashed backend API response time from ~450ms to under 120ms (73% reduction) by rewriting legacy N+1 MySQL queries and generating optimal composite indexes via Prisma ORM independently.
Engineered a 4-tier security framework (HS256 JWT) securing 113 routes across user, admin, and subscription roles with bulletproof cookie isolation and account-state verification.
Accelerated admin dashboard workflows by batching 17 queries via Promise.all, mitigating UI blocking to render user metrics and multi-platform social data in one unified network round-trip.
Implemented an Axios interceptor managing silent JWT rotation; self-documented the architecture to enable seamless async integration for frontend developers without needing synchronous meetings.
IoT Rogue Traffic Simulator
HypeWait Queue Drops
LiveTeamGames Grid
A real-time anomaly detection pipeline that flags rogue traffic patterns using a trained Random Forest classifier.
Built an end-to-end MQTT telemetry ingestion pipeline using Python to parse data across 20+ simulated IoT points.
Trained a Random Forest model on 350K+ entries, optimizing classification overhead to keep processing speed under 300ms.
Reduced mean detection-to-alert latency from 5 minutes to 15 seconds using live database-driven dashboards.