Muhammad Huzaifa

Backend Engineer
Karachi, PK.

About

Accomplished Backend Engineer with 3+ years of expertise in designing, deploying, and optimizing scalable distributed backend services for high-traffic applications. Proven ability to leverage Python (FastAPI), Node.js, TypeScript, and AWS to deliver robust financial analytics, transactional booking platforms, and enhance system observability. Drives significant performance improvements and builds secure, resilient architectures to support complex business operations.

Work

InvestWizz / Bitrupt
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Backend Engineer (Full-Time)

London, England, UK

Summary

Led the design and deployment of distributed backend services, powering real-time financial analytics and integrating complex fintech APIs.

Highlights

Designed and deployed distributed backend services using FastAPI and AWS RDS (MySQL) to power real-time financial analytics for critical business operations.

Containerized and orchestrated microservices using Docker and AWS ECS, implementing load balancing, health checks, and staged rollouts for robust deployments.

Integrated diverse fintech APIs (AlphaVantage, Yapily, WealthKernel) with resilient retry logic and comprehensive monitoring, ensuring high availability.

Developed secure authentication flows, including Apple Sign-In and Google OAuth, with robust token lifecycle management for enhanced security.

Automated CI/CD pipelines using GitHub Actions, streamlining testing, linting, infrastructure promotion, and staged deployments.

Developed cross-application chatbot integrations and contributed to payment workflows with Mollie, PayPal, and Yapily, enhancing user experience.

Improdata
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Associate Software Engineer (Full-Time)

Karachi, Sindh, Pakistan

Summary

Developed scalable backend systems in Node.js and TypeScript, focusing on modularity, clean architecture, and production reliability for a booking platform.

Highlights

Developed robust backend systems using Node.js and TypeScript, emphasizing modularity, clean architecture, and production reliability.

Migrated and took ownership of the GoPlay Booking Platform backend (NestJS, MySQL), designing high-concurrency workflows with transactional locking.

Conducted load tests supporting 1000+ concurrent bookings and optimized MySQL/TimescaleDB queries, reducing latency by 40%.

Enhanced system observability through structured logging, API monitoring, and collaborative production diagnostics with DevOps, improving incident resolution.

Systems Limited
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Software Engineer Intern

Karachi, Sindh, Pakistan

Summary

Developed a production-grade image resizing service and automated pipelines for multiple image variants using NestJS and AWS.

Highlights

Built a production-grade image resizing service utilizing NestJS, Sharp, AWS S3, and PostgreSQL (RDS) for efficient media processing.

Implemented automated pipelines generating multiple image variants (profile, banner, thumbnail) from uploaded images, enhancing content delivery.

Developed modular abstractions to handle diverse image types and size rules, improving system flexibility.

Keeptutors (EdTech Startup)
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Backend Developer Intern

Remote, Remote, ZZ

Summary

Revamped database schemas and developed a business performance module to track sales, engagement, and course completion trends.

Highlights

Revamped and normalized core student-tutor database schemas, significantly improving query performance and data integrity.

Designed and implemented a Business Performance module, enabling tracking of year-end sales, tutor engagement, and course completion trends.

Developed aggregated metrics and dashboards, surfacing critical revenue insights and operational KPIs for informed management decision-making.

Zenkoders
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Trainee Software Engineer

Karachi, Sindh, Pakistan

Summary

Completed competitive programming challenges and developed multiple React Native applications, strengthening mobile development fundamentals.

Highlights

Completed 60+ competitive programming challenges on CodeWars (JavaScript), enhancing problem-solving and algorithmic skills.

Developed multiple small React Native applications, strengthening foundational mobile development skills.

Volunteer

Character Building Society
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Volunteer Head

Karachi, Sindh, Pakistan

Summary

Led the Character Building Society, fostering positive community engagement and development initiatives.

Highlights

Led and managed initiatives for the Character Building Society, promoting positive community values and engagement.

FAST NUCES
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Teaching Assistant (Assembly Language)

Karachi, Sindh, Pakistan

Summary

Assisted in teaching Assembly Language at FAST NUCES, supporting student learning and comprehension.

Highlights

Provided academic support and guidance to students in Assembly Language, enhancing learning outcomes.

Education

FAST National University of Computer and Emerging Sciences
Karachi, Sindh, Pakistan

Bachelor of Science

Computer Science

Courses

Assembly Language

Languages

English
Urdu

Skills

Languages

Python, Node.js, JavaScript, TypeScript, SQL, C++.

Frameworks & Libraries

FastAPI, NestJS, Express.js, LangChain.

Databases

MySQL, PostgreSQL, TimescaleDB, Redis, Vector Databases (Pinecone, Qdrant).

Cloud & DevOps

AWS (ECS, Lambda, RDS, S3, Textract, Bedrock), Docker, GitHub Actions, Nginx.

AI & LLM Systems

RAG Pipelines, Embeddings, Prompt Engineering, LangChain Agents, Knowledge Graphs, OpenAI, AWS Bedrock Models.

Event Streaming & Data Pipelines

Apache Kafka, ETL Workflows, Distributed Messaging.

Concepts

Distributed Systems, Event-Driven Architecture, REST APIs, CI/CD, Observability, Testing (Pytest/Jest), Clean Code, Agile Scrum.

Projects

Fortnite Creator Maps Analytics

Summary

Developed a robust analytics system for Fortnite creator maps, processing vast amounts of time-series data to provide optimized query performance.

Wearable Device Integrations (Fitbit, Whoop, Garmin)

Summary

Integrated wearable device APIs (Fitbit, Whoop, Garmin) to ingest large JSON datasets and transform raw data into user-friendly health metrics.

Healthify - Diabetes & Health Analytics Platform

Summary

Engineered a full-featured health platform for diabetes management, including glucose tracking, meal planning, and medication reminders.

DreamScope Analytics

Summary

Built an AI-powered dream interpretation pipeline with mood correlation and sleep analysis, featuring interactive visual insights.