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kashif User

@kashifuser4

Message

I build scalable backend platforms, APIs, and distributed systems that improve performance and reliability.

United Kingdom

Message

At WorkL for Business, I optimized PostgreSQL benchmark performance from 18 seconds to under 5 seconds and designed architecture for a distributed AI processing platform.

I build cloud-native backend services with Python, Node.js, MongoDB, AWS, GraphQL, Docker, and OpenAI APIs. My orchestration platform improved asynchronous processing speed by 30%, while Dockerized AWS deployments reduced release time by 20%.

At SilverSky Technologies, I built an email attachment security pipeline and asynchronous services that reduced threat-detection response time by 30%. I also delivered Single Sign-On automation for more than 1,000 enterprise users.

Across SaaS, cybersecurity, banking, insurance, ecommerce, and defence, I've led teams of up to eight engineers and modernized backend systems for greater scalability, resilience, and maintainability.

Experience

Work history, roles, and key accomplishments

Lead Backend Engineer

WorkL for Business

Apr 2024 - Jul 2026 (2 years 3 months)

Optimized PostgreSQL performance and designed a distributed AI processing platform. Engineered Python and MongoDB orchestration, GraphQL APIs, and serverless backend services on AWS.

PostgreSQL Python MongoDB NodeJS GraphQL AWS Docker OpenAI Kafka Distributed Systems

Staff Software Engineer - DevOps & Backend

SilverSky Technologies

Nov 2022 - Apr 2024 (1 year 5 months)

Engineered a Python-based email attachment security pipeline and reduced threat-detection response time by 30%. Delivered a custom SSO solution and created test automation frameworks.

Python Symfony Asynchronous Processing Security SSO Testing Automation Queue Driven Architecture

Lead Software Consultant

ENO8

Dec 2020 - Nov 2022 (1 year 11 months)

Created Python and Flask REST APIs for ecommerce integrations and designed scalable backend services for insurance SaaS. Modernized a monolithic platform into service-oriented architecture.

Python Flask NodeJS Symfony REST APIs Shopify Magento Shopee Odoo Microservices

Senior Consultant

Amtex Technologies

Oct 2020 - Dec 2020 (2 months)

Architected real-time backend pipelines for wearable-device data using Kafka, Redis, and ELK Stack. Increased API reliability by 90% with automated tests.

Kafka Redis ELK Stack Python Testing Automation Stream Processing

Lead Software Developer

WESEE - Indian Navy Contractor

Sep 2019 - Oct 2020 (1 year 1 month)

Rebuilt Qt/C++ application libraries and created Python deployment automation frameworks. Implemented secure backend components for defence-grade combat management systems.

Qt Framework C++Python Deployment Automation Backend Development Security

Freelance Consultant

Banking Sector

Feb 2019 - Oct 2019 (8 months)

Implemented PHP and Laravel reporting and audit tools for banking operations, reducing processing time from 2 months to 1 week.

PHP Laravel Reporting Audit Software Tools

Team Lead

Seekuber Technologies

Aug 2017 - Feb 2019 (1 year 6 months)

Led development of Qt and QML-based applications for calibration and device analysis, strengthening technical delivery and performance.

Qt Framework QML Team Leadership Application Development

Technical Lead / Associate Architect

Clairvoyant Mobile Solutions

May 2015 - Mar 2017 (1 year 10 months)

Led a team of 8 developers across API architecture, database design, application security, and backend integration for enterprise mobile applications.

API Architecture Database Design Security Backend Integrations Team Leadership