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MUHAMMAD ZEESHAN

@muhammadzeeshan24

AI Engineer and Founder at JobOS, building production agent workflows and RAG features for an AI-native job-search platform.

Pakistan

Message

At JobOS, I built an AI-native job-search platform with tool-based agents that autofill ATS forms across different layouts. I designed its Anthropic API RAG pipelines for resume tailoring and search, with retries, model fallbacks, and human handoffs built into the workflow.

At Nextbridge Ltd., I engineered Python ingestion pipelines processing 1.4M+ records daily across 200+ workers, reducing processing time from 4.5 hours to under 30 minutes and infrastructure costs by roughly 40%. I also built a centralized RAG and hybrid search platform and led code reviews and mentored engineers.

Experience

Work history, roles, and key accomplishments

Current

Founder & AI Engineer

Current

JobOS

Jun 2026 - Present (4 months)

Founded and built JobOS, an AI-native job-search platform with tool-based agent architectures, RAG pipelines, and LLM workflows on the Anthropic API. Owned the full backend in Python and FastAPI on PostgreSQL, including schema design, API contracts, and deployment.

Python fastAPI PostgreSQL Anthropic API RAG AI Agents Asynchronous Processing Queue Retries Monitoring

Current

Software Engineer

Current

Diametos GmbH

Sep 2025 - Present (1 year 1 month)

Build and support Python backend services and REST APIs for sleep-diagnostics products in a regulated, quality-critical environment. Own features end to end from technical design through implementation, testing, and deployment.

Python REST APIs Backend Services Testing Deployment

Senior Software Engineer

Nextbridge Ltd.

Jan 2023 - Sep 2025 (2 years 8 months)

Engineered high-throughput, real-time ingestion pipelines in Python processing 1.4M+ records daily across 200+ concurrent workers, cutting processing time by 89% and infrastructure cost by 40%. Built a centralized RAG and hybrid search platform and led a distributed crawling and data-integration system.

Python Kafka Celery RabbitMQ AWS Lang Chain OpenAI Embeddings Vector Search RAG Distributed Systems Observability Mentorship

Software Engineer

Ten Lifestyle Group

Dec 2021 - Dec 2022 (1 year)

Developed REST APIs and a microservices component from scratch using Django, DRF, Django Ninja, and FastAPI, securing endpoints with JWT/OAuth and documenting contracts with OpenAPI/Swagger. Built backend services with GraphQL and gRPC, using Celery for asynchronous task processing.

Python Django Django REST Framework Django Ninja fastAPI GraphQL gRPC Celery Redis AWS RDS JWT OAuth OpenAPI Swagger

Senior Software Engineer

Emumba

Sep 2020 - Dec 2021 (1 year 3 months)

Built secure enterprise backend services and REST APIs in Python (Django/DRF, Flask, FastAPI) and Go across monolithic and microservices architectures. Implemented event-driven workflows with Uber Cadence and integrated the Ambassador API Gateway.

Python Django DRF Flask fastAPI Go Microservices Uber Cadence Ambassador API Gateway ZTNA

Python Developer (Contract)

Citibank

Mar 2020 - Apr 2021 (1 year 1 month)

Designed Python automation and ETL pipelines processing millions to billions of records for enterprise banking reporting. Optimized SQL and database workflows within compliance and reliability constraints.

Python ETL SQL Database Optimization Automation

Full Stack Engineer

Crewlogix Technologies

Jan 2018 - Sep 2020 (2 years 8 months)

Built scalable web applications and REST APIs with Python/Django, PostgreSQL, MySQL, and DynamoDB, including relational schema design and query optimization. Delivered features end to end across backend, data, security, deployment, and monitoring on AWS.