STATUS: AVAILABLE

Fractional CTO & Independent Backend Engineer — Neeraj Garg, Delhi Code is 30%.
User pain
is the other 70%.

Hexbolt is a one-person practice run by Neeraj Garg — 13 years shipping 0 → 1 systems and rebuilding the ones that broke in the way. Founders bring me in when the architecture has to be right the first time.

~/hexbolt — zsh
$ whoami
neeraj.garg — independent technical partner
$ cat experience.txt
13+ years in production code
7 companies, 4 industries
→ ex-CTO, ex-Tech Architect, ex-first-tech-hire
$ stack --primary
python · django · ruby on rails · postgres · aws
$ availability --next
available now
$ _
[01] / let's talk

Got a system
that's too slow?
An idea you
can't ship?

Thirty minutes. No pitch deck, no NDA, no recap email afterward unless you ask for one. We'll figure out if there's a fit. If not, I'll point you at someone better suited.

// engagement details

based inDelhi, India
timezoneIST (UTC+5:30)
overlapSF / NYC / EU possible
response< 24h, on weekdays
capacityavailable
currencyUSD or INR
linkedin/in/neeraj-garg
[02] / manifesto

Three rules I work by.

After 13 years, the patterns are clearer than the code. These are the ones I refuse to compromise on.
01.  the right thing first

Architecture is plumbing — invisible when it works, fatal when it doesn't.

Get the structural decisions right early. Everything else can be refactored. The data model usually can't.

02.  remove emotion

Build systems that decide without you in the loop.

Algorithmic trading taught me this in capital markets. The same discipline works on roadmaps, hiring, and code review.

03.  30 / 70

Code is 30%. Understanding the user's pain is the other 70%.

Most teams are optimizing the wrong half. The hard work is talking to people, watching them break things, then deleting features.

[03] / services

Four ways to work together.

Pick one. Stack them. Most engagements run 8–16 weeks; fractional CTO work is open-ended. I work with one or two teams at a time, no exceptions.
// 01 8–12 weeks · fixed scope

0 → 1 product engineering

From wireframe to first paying customer. As your independent backend engineer, I architect, build, and ship the production v1 of your product — usually solo, sometimes alongside a designer or your first hire.

  • Backend + API design from scratch
  • Auth, payments, infra, observability
  • Live on AWS, monitored, documented
// 02 4–8 weeks · audit + plan

System architecture review

For teams who feel something is off but can't name it. Two weeks reading code, one week interviewing the team, then a written plan you can actually execute.

  • Bottleneck analysis (perf, infra, data model)
  • Migration path with cost & risk per stage
  • One-page exec summary, 30-page technical plan
// 03 12–24 weeks · embedded

Backend re-architecture

You have a Rails or Django monolith that worked at 10k MAU and is melting at 100k. Rails and Django backend re-architecture is where I've done my most concentrated work — I rebuild it without freezing the team or your roadmap. Done it twice end-to-end.

  • Strangler-fig migration, never a big-bang rewrite
  • Domain modeling + service boundaries
  • Knowledge transfer to your team, not lock-in
// 04 0.5–2 days/wk · ongoing

Fractional CTO

For founders in India and globally who need a senior technical mind in the room — but not a $300k headcount. Fractional CTO services covering hiring, code review, roadmap, vendor calls, and fire prevention.

  • Tech-lead interviews + reference checks
  • Weekly architecture & PR review cadence
  • On-call for the things you'd otherwise lose sleep over
[04] / stack

Tools I reach for.

Boring on purpose. I default to the well-understood stack so the interesting decisions can live at the product layer where they actually matter.
primary
Python/ Django/ Ruby on Rails/ PostgreSQL/ Redis
infra
AWS/ EC2 · RDS · S3 · Lambda/ Docker/ CloudWatch/ Celery
adjacent
React/ Next.js/ REST + GraphQL/ Stripe/ PayU/ Twilio
battle-tested
CodeIgniter/ Node/ Elasticsearch/ RabbitMQ/ Memcached
[05] / selected work

Twelve years shipping.
Six picks.

These are the engagements that taught me the most — across consumer internet, marketplace, SaaS, and fintech. Full record on LinkedIn.
CASE 01
2012 — 2014

Dineout.co.in

First in-house engineer ·food & dining ·0 → 1

Joined as the first in-house backend engineer and took the entire stack over from a third-party agency. Scaled the consumer site, shipped the mobile site, integrated payments — the engagement that hardwired my zero-to-one instincts. Hiring a backend engineer as your first in-house technical hire is one of the highest-leverage decisions a startup makes; I've been on both sides of that decision.

At Dineout I learned to watch production fail at 2am, understand why, and fix it before morning — not because a manager asked, but because the system was mine. That sense of full-stack ownership, from architecture to on-call, is what I bring to every 0 to 1 product engineering engagement today.

  • End-to-end ownership of www.dineout.co.in backend
  • Built m.dineout.co.in (mobile site)
  • PayU integration · Facebook API · affiliate booking widgets
  • REST APIs for third-party integration
CASE 02
2015 — 2016

NuvoEx Logistics

Senior Software Engineer ·logistics & supply chain ·Gurgaon

Joined NuvoEx at a time when logistics software in India was being built from scratch — no mature playbook, just the operational reality of moving goods at scale. I worked across the full logistics stack: reverse logistics, forward dispatch, and warehouse quality control, each a distinct system with its own data model and failure modes.

Logistics is where you learn that edge cases aren't edge cases — they're the job. A reverse pickup that fails silently costs money and trust. A warehouse QC system that's wrong even 1% of the time compounds into real inventory losses. Building reliable systems in this domain sharpened my instinct for correctness over cleverness, and for designing workflows that operators can actually trust under pressure.

  • Reverse logistics system — pickup tracking & exception handling
  • QC warehouse management system
  • Forward logistics dispatch system
  • Led and managed a team of multiple developers
CASE 03
2016 — 2017

CARTOOZ

CTO & founding engineer ·automotive services marketplace ·Delhi NCR

Designed and built a real-time booking platform for car servicing, washes, and roadside breakdowns — Uber-style matching between mechanics and consumers, from a blank repo. This was 0 to 1 product engineering in the strictest sense: no existing codebase, no prior art, just a founding vision and a market that needed it yesterday.

As CTO and the sole backend engineer for the first six months, I owned every architectural decision. The geo-matching system, surge pricing logic, and dual-sided booking flow all had to be right from the start — a marketplace can't easily rewrite its core matching engine mid-flight. The choices I made in week one were still running in production a year later.

  • Whole-system architecture for consumer + mechanic dual-app
  • Real-time dispatch, surge pricing, geo-matching
  • Managed multi-developer team across iOS, Android, backend
CASE 04
2017 — 2018

getgrowfit

Technical Architect ·health & fitness SaaS ·Bengaluru

Inherited a Ruby on Rails backend that worked but couldn't scale. Re-architected the whole thing for performance, scalability, and maintainability without freezing the product team. Classic Rails backend re-architecture challenge: built to get to market, not to grow past it.

The hardest part of this engagement wasn't the code — it was sequencing the work so the product team never had to pause their roadmap for an engineering project. I identified which parts of the monolith to extract first, designed the new domain boundaries, and ran the migration without a single big-bang cutover. The result was a codebase the team could actually hire into.

  • End-to-end RoR backend re-engineering
  • Introduced eCommerce + Subscription modules from scratch
  • Led front-end and back-end engineering teams
CASE 05
2019

Wildnet Technologies

Assistant Vice President ·technology services ·Noida

Stepped into an AVP role at Wildnet Technologies, a digital-services firm delivering tech solutions across SEO, performance marketing, and software for a range of clients. The role sat at the intersection of engineering leadership and client delivery — owning technical direction, team performance, and output quality simultaneously.

Moving from individual contributor to AVP taught me that the leverage of a senior leader isn't in writing better code — it's in creating the conditions where the team does. Setting technical standards, unblocking engineers, and aligning delivery timelines with business commitments are harder problems than any system design challenge, and this engagement put them front and centre.

  • Engineering leadership across multiple client delivery teams
  • Technical direction and delivery ownership at AVP level
  • Raised engineering standards and team performance
CASE 06
2020 — Present

AdInvestor (powered by Push)

Software Development Consultant ·capital markets / fintech ·ongoing

Long-running embedded engagement as an independent technical partner to a capital-markets fintech. Python + Django + PostgreSQL on AWS — the full backend stack for a platform where correctness isn't optional. The longest single engagement of my career, and the one that taught me the most about compounding architecture decisions.

Five years means you live with your own decisions. Every abstraction I introduced in 2020 has to still make sense today. Capital-markets work sharpens your discipline fast: data integrity failures have real financial consequences, deployment safety isn't negotiable, and "it works on staging" isn't a release criterion.

  • Production engagement ongoing since 2020
  • Algorithmic execution & data pipeline work
  • Compounding architecture decisions, paid off compounding too
[06] / about

About Neeraj.

Delhi-based fractional CTO and independent technical partner to founders globally since 2018 — well before remote was a thing.

I started in 2011 as a Quality Engineer because shipping software you couldn't trust felt wrong to me. Spent the next 13 years on the other side of that wall — making sure people actually could.

Along the way I was the first tech hire at Dineout, a senior engineer at Times Internet and NuvoEx Logistics, CTO at CARTOOZ, Technical Architect at getgrowfit, and AVP at Wildnet Technologies. Six industries, seven companies — consumer internet, media, logistics, automotive, health-SaaS, fintech.

In parallel I founded DS Capitals — an algorithmic trading system I designed and ran for five years. Building a system that trades real money with zero human intervention is the best teacher of disciplined, emotion-free decision-making I know. That mindset shapes every system I build.

Today I take one or two outside engagements at a time as Hexbolt, while staying embedded at AdInvestor as a long-running technical partner.

Always curious. Always building.
Always user-first.

13+
years shipping
7
companies
6
industries
2
0→1 launches
2011QE @ Nextag — started
2012First tech hire @ Dineout
2014Sr Engineer @ Times Internet
2015Sr Engineer @ NuvoEx
2016CTO @ CARTOOZ — first CTO seat
2017Tech Architect @ getgrowfit
2018Founded DS Capitals (algo-trading)
2019AVP @ Wildnet Technologies
2020Consultant @ AdInvestor — ongoing
2021Hexbolt — independent