QUEUE LAB
Queue & Retry Simulator
Survive Black Friday, provider outages and campaign traffic by balancing workers, retries, backoff, cost and downstream pressure.
WorkersRetriesBackoffJitterCircuit breaker
Launch queue lab →Open to backend, platform and Python engineering roles
Senior Backend Engineer
I make complicated systems boringly reliable.
Senior Backend Engineer with 5+ years of experience building Python systems, APIs, data platforms, asynchronous workflows and practical AI tools.
shubham@portfolio:~
$ whoami
Senior Backend Engineer
$ stack --primary
Python · FastAPI · PostgreSQL · AWS · Redis · Celery
$ focus
backend systems / data / automation / AI
$ status
available_for_interesting_work▋
What I build
Five years of turning messy requirements into dependable software.
Click around. This is the work I tend to enjoy most.
Currently selected
Backend Systems
Production backend systems with clean boundaries, reliable APIs, background jobs, caching and integrations.
PythonFastAPIDjango / DRFFlaskRedisCeleryREST APIs
01Service design
02Workflow engines
03Third-party integrations
04Reliability improvements
Engineering playground
Break systems. Tune tradeoffs. Learn what the knobs actually do.
Interactive backend labs that behave more like engineering puzzles than résumé bullets.
NEW LAB
PostgreSQL Index Lab
Diagnose slow queries, inspect cardinality, choose indexes and run simulated EXPLAIN ANALYZE while balancing latency, write throughput and storage.
EXPLAIN ANALYZEComposite indexesPartial indexesBRINWrite cost
Launch index lab →Public projects
Things I can actually show you.
Employer systems stay in the experience section. These are the projects I can discuss openly.
01AI + DATA
Ask Your Database
Natural Language → PostgreSQL Assistant
A modular Python application that turns plain-English questions into safe SQL, validates and repairs generated queries, executes them against a read-only PostgreSQL database, and summarizes results back in natural language.
PythonPostgreSQLOllamaLlama 3Prompt Engineering
Explore project 02DESKTOP + AUTOMATION
Gym Operating System
Membership, Payments & Reminder Desktop App
A local-first Windows desktop application for running a small gym: members, plans, memberships, payments, reminders, backups and admin protections in one place.
PythonPySide6SQLiteSQLAlchemy
Explore project 03 · CURRENTLY BUILDING
The next thing should be worth showing.
I'd rather keep this slot empty than fill a portfolio with toy CRUD apps. The next public project will appear here when it earns the space.
IN PROGRESS
Experience
Production engineering, not portfolio fiction.
2024 — 2026
Senior Software Engineer
Fintech / Lending Platform
Built production backend services across lending, servicing, reporting, integrations, async processing and data workflows.
PythonFastAPIPostgreSQLAWSCelerySQLAlchemy
2021 — 2024
Software Engineer
Edtech
Worked on backend systems supporting teacher operations, payouts and internal business workflows.
PythonFlaskPostgreSQLRedisAWS
Let's build something useful
Looking for a backend engineer?
I'm interested in backend, platform and Python engineering roles, including remote and internationally distributed teams.