Senior Backend Engineer · Taking 2 projects this month

I build backend
systems that scale
with your startup

FastAPI, AWS, and AI pipelines for startups that can't afford slow or fragile infrastructure. From MVP to 15M+ MAUs — I've built it.

See what I build → Book 30-min call
Hritik Wadhwa — Senior Backend Engineer
15M
MAUs served
across 4 products
<200ms
API latency
at 15M MAU scale
7yr
Backend experience
incl. 2yr freelance
Recent work
Fraud detection platform
Scalable leasing backend with fraud signal APIs and real-time observability
↳ Processing 10K+ fraud signals/day in real-time
FastAPIAWS LambdaPython
AI automation pipeline
n8n + Claude workflows replacing manual internal ops for early-stage teams
↳ Replaced 15+ hrs/week of manual work per team
n8nClaude APINode.js
Audio streaming — retention pod
Customer retention APIs for 15M MAU product, designed for 100M scale
↳ Scaled 1M → 15M MAUs, <200ms p99 latency maintained
DjangoAWSKafka
Taking 2 projects this month · Starts within 1 week
Team Gully Gang at Smart India Hackathon 2019
Government of India · Smart India Hackathon 2019
1st Prize — Team Gully Gang. National-level competition across 100K+ participants.
Chitkara University
Featured — Smart India Hackathon winners
Topcoder
1st Place · Won $800 — Development Track
LinkedIn
7yr verified engineering career
01

What I can build for you

AI
AI integration & automation pipelines
Connect LLMs to your product workflows. Automate internal ops, content pipelines, lead scoring, or customer comms using Claude + n8n.
From $800 · 3–7 days
BACKEND
Scalable backend architecture
FastAPI or Django APIs built for growth. Database design, async workers, caching layers, and monitoring — production-ready from day one.
From $2,000 · 2–3 weeks
INFRA
AWS infrastructure & DevOps
Lambda, ECS, RDS, SQS — set up and tuned for your traffic patterns. CI/CD pipelines, cost optimisation, and observability included.
From $800 · 1–2 weeks
02

How we work together

01 — Discovery
30-min scoping call
No fluff. You'll have a clear proposal within 24hrs.
02 — Proposal
Fixed price, fixed timeline
No hourly billing surprises. You know exactly what you're getting and when before any work starts.
03 — Build
Daily async updates
Loom updates every day. You see progress without meetings. Feedback loops stay tight and fast.
04 — Handoff
Documented, not dumped
Full docs, recorded walkthrough, and 2 weeks of async support included in every project.
Got a backend
problem that needs
solving fast?
Quick
Small automation or AI integration · $800–1,500 · delivered in under a week
Full build
Backend system or internal tool · $2,000–6,000 · 2–3 week turnaround
Ongoing
Monthly retainer · dedicated engineering support · from $3,500/mo
Book a call → See full portfolio