backend audit
- outside india
- $1,200
- in india
- ₹60,000
- terms
- one-time
- database & schema review
- architecture blueprint
- written report, prioritised fixes
proposal: backend engineering, on contract
- from
- naga srinath <[email protected]>
- to
- founders & small teams building a real product
- based
- hyderabad · IST (UTC+5:30) · async-first
- status
- accepting work from december · 2 slots
01 summary
backends built right the first time.
i design and ship go services on postgres and gcp — from the design doc to a running environment, with the migrations, CI and infrastructure that keep it sane after i hand it over. you own every line from the first commit.
$ naga --stack
go · typescript · postgres · sqlc · goose · cloud tasks · pub/sub · gcp · cloud run · terraform · github actions · testcontainers
02 scope
2.1 new backends in go
apis, background workers and scheduled jobs, built as a modular monolith you can split later by moving a package — not rewriting.
- rest api with a generated client
- workers on queues and pub/sub
- auth, tenancy and audit built in
2.2 data & domain logic
the schema designed before the code, and the business rules that are easy to get subtly wrong — money, pricing, tax, multi-tenant access.
- postgres schema and typed queries
- reversible migrations
- money in minor units, done right
2.3 cloud, ci & integrations
environments as code, a pipeline that blocks mistakes before review, and third-party apis behind adapters you can swap.
- gcp / cloud run via terraform
- ci with lint, vuln and drift checks
- payment, sms and supplier adapters
03 prior work — srilin electronics
- client
- srilin electronics — india-first electronics procurement
- year
- 2026
- status
- delivered
problem. turn a messy customer BOM into a trustworthy quote — priced across several global distributors, with indian customs duty and GST worked into the landed cost.
approach. a go modular monolith with 28 bounded contexts, designed in a frozen HLD and schema before code. supplier and payment integrations sit behind adapters; custom linters in CI enforce tenant isolation and module boundaries.
result. delivered the full flow end to end: BOM upload → column mapping → multi-supplier pricing → quote, priced against digi-key, mouser, element14 and robu. new suppliers and gateways plug in without touching business code.
| go code | ~149k lines across ~509 files |
|---|---|
| modules | 28, boundaries enforced in CI |
| postgres | 85 tables, reversible migrations |
| tests | 187 test files, testcontainers on real postgres |
┌────────────────────────────┐
│ srilin-platform · go 1.26 │
│ one docker image │
└──────────────┬─────────────┘
┌────────────┬────────────┼────────────┬────────────┐
▼ ▼ ▼ ▼ ▼
customer api admin api worker·push worker·pull batch jobs
rest /v1 iap-gated cloud tasks pub/sub scheduler
└────────────┴────────────┬────────────┴────────────┘
▼
postgres (ha) · cloud tasks · pub/sub · gcs
terraform: shared / stage / prod
notable decisions
- anti-IDOR linter: every query on a tenant-owned table must carry the org check, or CI fails.
- landed-cost pricing: HSN-keyed customs duty, IGST, spares and attrition rules — and an explanation when a line loses.
- migrations run up → down → up in CI on every change; sqlc drift fails the build.
- fixtures mode with synthetic suppliers: runs locally with no cloud account on day one.
04 method
design first. ship in small, reviewed steps.
-
01 · day 1
intro call. 15 minutes, free. you describe the problem; i tell you honestly whether i am the right fit.
-
02 · week 1
design & quote. a short design doc — modules, schema, infra — with a fixed price and milestones you sign off on.
-
03 · weeks 2+
build. small, reviewed commits in your repo, deployed as they land. async updates, a weekly demo.
-
04 · last week
handover. docs, runbooks and a recorded walkthrough so your team can own it — or keep me on a retainer.
05 engagements & pricing
fixed scopes, not hours. every engagement starts with a written scope you sign off on.
project build
- outside india
- $3,500 or more
- in india
- ₹1,75,000 or more
- terms
- fixed scope
- end-to-end backend
- api design & docs
- deployment, ci/cd, terraform
- handover & walkthrough
monthly retainer
- outside india
- $1,000 per month
- in india
- ₹50,000 per month
- terms
- up to 20 hrs
- on-call backend & infra
- performance tuning
- priority support on weekdays
usd for clients outside india · inr for clients in india, GST added where applicable. an audit fee is credited against a project that follows it.
06 fit
a good fit if you…
- are a founder or small team building a real product, not a demo
- have logic that is genuinely tricky — money, pricing, tax, multi-tenant data
- want to own the code and run it without me later
probably not a fit if you…
- need a pixel-perfect frontend or mobile app as the main deliverable
- want something live by friday with no design step
- are looking for a full-time hire (happy to chat, though)
07 terms & questions
do you work with clients outside india?
yes. i work async in IST and keep a few hours of overlap with US or EU mornings for calls. international work is invoiced in USD.
who owns the code?
you do, from the first commit. everything lives in your github and your cloud accounts; nothing is locked to me.
can you join an existing codebase?
yes — start with a backend audit or a scoped project. i usually begin with a short review so we agree on what to fix first.
do you only work on gcp?
gcp is where i am deepest, but the patterns carry over. tell me your stack on the call and i will be straight about it.
do you do frontend?
lightly — api clients and internal consoles in typescript. if the ui is the main deliverable, you will want a frontend specialist.
how do payments work?
projects are 50% upfront and 50% on handover. audits are paid upfront, retainers monthly in advance.
08 next step
tell me what you are building — a few lines is enough. if i'm not the right person, i'll say so and point you to someone who is.
$ mail [email protected]
$ open cal.com/nagasrinath/quick-chat # free 15-min call
replies within a day.
— naga