I'm Abdul Samad Chishti — a Backend Engineer building race-condition-free booking engines, multi-tenant REST APIs, Redis distributed locks, and relational PostgreSQL schemas that hold under real load.
Every project below solves concrete backend problems: concurrent seat double-booking, cross-tenant data leaks, brute-force auth lockouts, and N+1 query bottlenecks. Pick a system and click any engineering decision to light up the exact lines of Python code:
Every bar below is drawn from real source code in my repositories — measuring architectural guarantees across concurrency, access control, and containerization.
High-concurrency event reservation backend engineered to eliminate race conditions under flash-drop traffic. Benchmarked with 100 simultaneous buyers for 20 seats (exact 20 sales, 0 oversold), 3.0× linear cluster scaling to ~1,500 req/s, and Stripe webhook idempotency.
A multi-tenant project management backend, like a small Jira or Trello API. Teams get workspaces with owner, admin, member, and viewer roles, private and public projects, tasks with filters, comments, and an audit log of every change. Logging out kills all of a user’s tokens instantly.
Containerized e-commerce backend featuring OTP verification, OAuth2 social sign-in, relational product catalog, session/DB cart synchronization, and atomic checkout order workflows.
Before writing application code, I trace the request lifecycle from edge rate-limiting down to database locks. Pick a production scenario to trace where it stops:
Async & synchronous API engines
ACID transactions & in-memory state
Background workers & Linux containers
Auth boundaries & automated tests
Hands-on software engineering internships and backend training across FastAPI, Django, relational databases, and agile team delivery.
Engineered TaskFlow API, a multi-tenant project management REST API with FastAPI — implemented JWT authentication, workspace-scoped role-based access control (owner/admin/member/viewer), and a projects → tasks → comments relational hierarchy. Integrated Redis caching and rate limiting, background email notifications, and soft deletes with audit logging.
Trained in backend web engineering using Django and Python. Built and tested RESTful APIs, designed normalized relational database schemas, handled HTTP request/response lifecycles, and collaborated using Git workflows on production-style codebases.
Collaborated across technical scoping, client communication, lead qualification, and cross-functional delivery workflows in a fast-paced IT agency environment.
Open for Backend Engineer roles, junior/associate opportunities, internships, and technical collaborations.
$ curl -s https://abdulsamadchishti.dev/status.json
{"developer": "Abdul Samad Chishti", "status": "open_to_work", "stack": ["Python", "FastAPI", "Django", "PostgreSQL", "Redis"]}
