Ijaz Khan

full stack developer

Zigron • Temps plein

Jul 2024 - Present • 2 yrs 2 mos

Lead backend development for a microservices product using Django, FastAPI and NestJS, defining service boundaries and API contracts for web and mobile clients. Built an LLM-powered chat assistant using RAG over vector data to keep answers grounded in application content and internal knowledge sources. Implemented the serving layer for an in-house trained image model that processes user-uploaded dental images as part of the product workflow. Owned OAuth2 authentication, Stripe subscription and billing flows, and Celery/RabbitMQ jobs for image processing, notifications and asynchronous workloads. Set up Docker-based CI/CD deployments across AWS and Azure, improving release consistency and reducing manual deployment steps. Review pull requests, support newer developers, and collaborate with product and design to scope features before implementation.

full stack developer

DiveDeepAI • Temps plein

May 2023 - Jun 2024 • 1 yr 1 mo

Developed backend services and REST APIs for AI-focused and data-heavy web applications using Django and Node.js. Designed authentication flows, database models and integration layers for features involving third-party APIs and AI/ML services. Moved long-running tasks into Celery and RabbitMQ background workers to keep request-response flows stable and maintainable. Built and maintained data pipelines and optimized heavy dashboard screens by profiling slow data flows, API behavior and frontend rendering. Delivered React and Next.js frontend features on top of backend services, contributing across the full product stack. Worked directly with the founding team to turn loosely defined ideas into scoped features, estimating effort and flagging technical risks early.

full stack developer

AlphaSquad • Temps plein

Feb 2023 - May 2023 • 3 mos

Built and maintained web applications using React, Next.js, Node.js and REST APIs across both frontend and backend layers. Translated UI/UX designs into responsive interfaces and connected them with backend endpoints and application data flows. Shipped features for multiple client products in parallel in an agency setting, adapting quickly to different codebases and conventions. Wrote and reviewed database queries and schema changes to support new features without slowing down existing screens. Investigated and resolved performance issues on heavier pages by improving frontend behavior and API integration patterns.