EX-BLINKIT · EX-PORTER · EX-URBAN HARVEST LIVE ADVISORY PRACTICE SAME BUSINESS DAY (IST) REPLY

Fractional CTO for
Ambitious Startups.

I help pre-seed to Series A founders solve their core technical problem and scale without full-time executive overhead. You get hands-on architectural ownership from an engineering leader with 12+ years of experience across commerce, logistics, and fintech.

WhatsApp +91 9717486696
Single Source Pricing: Architecture Audit $12,000 fixed (credited) · Fractional CTO from $15,000/mo · Embedded Team from $45,000/mo.

01 THE CORE PROBLEM

Why agencies fail
and founders get stuck.

Most software agencies fail founders because they build features blindly without understanding unit economics or business models. Founders get stuck refereeing technical arguments, managing freelancers, and firefighting bugs.

Direct Ownership With Umesh Gupta:

I step in as your strategic executive partner. I diagnose the single technical bottleneck holding back your growth, align your team, and ensure every pull request meets production standards.

Direct Commitments:

  • Pinpoint diagnosis of your core business bottleneck and growth model within Week 1.
  • Direct code and pull request gatekeeping on critical data paths.
  • 100% bilateral IP ownership with zero vendor lock-in.
  • 3-month minimum commitment, then 30 days' written notice.

02 CORE DOMAINS

Three industries where
I have deep operational experience.

Tested in high-volume, real-world systems at Indian tech leaders.

EX-BLINKIT

Commerce & Quick-Commerce

Order management systems (OMS), real-time inventory allocation across dark stores, high-concurrency cart pipelines, and coupon validation.

Explore Commerce Practice →
EX-PORTER

Logistics & Last-Mile

Automated driver dispatch, bipartite matching algorithms, GPS telemetry filtering, and real-time SLA tracking across fleets.

Explore Logistics Practice →
EX-URBAN HARVEST

FinTech & Micro-Lending

Double-entry transactional accounting ledgers, algorithmic credit underwriting, automated KYC pipelines, and payment reconciliations.

Explore FinTech Practice →

03 DEEP DOMAIN EXPERTISE · LIVING BLUEPRINTS

Proven architectures from
Blinkit, Porter & Urban Harvest.

Explore production system topologies, data consistency guarantees, and failure-mode defenses across quick-commerce, high-throughput fleet dispatch, and fintech lending.

E-Commerce & Quick Commerce OMSPRODUCTION SPECIFICATION
Flash Sale ConcurrencyHigh-Throughput
Dark Store AllocationReal-Time SLA
Oversell RateZero Oversell
Checkout PipelineSub-Second P99

2-Phase Distributed Hold & Dark Store Routing Topology

When 5,000 users attempt to purchase the last 12 units of an item during a flash sale, naive SQL updates cause database table lock-ups and negative inventory. We deploy an atomic Redis hold token mesh before touching persistent PostgreSQL records.

01Memory Cache / Edge KV
Optimistic Cart Hydration

Items added with soft lock tokens. Cart validation executes at edge in < 12ms without triggering heavy warehouse queries.

02Redis Cluster + Lua Script
2-Phase Inventory Reservation

Atomic DECRBY with 7-minute lease TTL. If count drops below zero, rollback is instantaneous with zero row lock contention.

03Spatial Indexing / H3 Hexagons
Dark Store Proximity Router

Selects the nearest dark store with complete basket coverage. If split required, optimizes pick-and-pack routing sequence.

04Kafka / Debezium CDC to Postgres
Asynchronous OMS Commitment

Payment authorization publishes OrderPlaced event. Inventory committed to durable relational store with zero checkout latency penalty.

04 DELIVERABLES

Tangible artifacts,
not vague advice.

Every deliverable is documented in clear, reproducible specifications and committed directly into your repository.

01Executive Diagnostic Report & RFC

Core Business Problem & Technical Diagnostic Brief

Deep audit of your customer funnel, unit economics, codebase bottlenecks, data models, and team velocity to uncover the real problem holding back growth.

02Living System Blueprint & RFCs

Technical Architecture & System Blueprints

Detailed system blueprints covering OMS inventory holds, driver dispatch matching, double-entry financial ledgers, and database schemas with zero vendor lock-in.

03GitHub Organization & CI/CD Gates

Direct Hands-on Code & Pull Request Reviews

Umesh Gupta directly reviews and signs off on critical PRs, data schema migrations, security boundaries, and performance benchmarks.

04Scorecards, Rubrics & Onboarding Docs

Engineering Hiring & Team Scaffolding

Vetting senior engineering candidates, conducting rigorous technical interviews, and onboarding talent into a high-craft engineering culture.

05Bilateral Agreement & Milestone Schedule

Global Delivery & Commercial Agreement

Standard work-for-hire bilateral IP assignment, multi-currency invoicing, and clear milestones.

05 TRANSPARENT PRICING

Single source of truth
pricing & engagements.

Transparent pricing without hidden fees or surprise add-ons.

Engagement TierInvestmentCommitment & Terms
Architecture Audit$12,000 (fixed (credited to retainer))2 weeks fixed (100% credited to a retainer started within 30 days). Exhaustive codebase, data pipeline, and cloud scalability audit.
Investor Tech Due DiligenceFrom $15,000 (/deal)Turnkey diagnostic per deal. Independent technical due diligence for venture capital and PE deals.
Fractional CTOFrom $15,000 (/month)3-month minimum commitment, then 30 days' notice. Hands-on technical leadership, architecture ownership, and PR governance.
Embedded CTO + Senior TeamFrom $45,000 (/month)3-month minimum commitment, then 30 days' notice. Fractional CTO leadership combined with a dedicated senior systems pod.

06 QUESTIONS & ANSWERS

Frequently asked
questions.

Why hire a Fractional CTO instead of a full-time CTO or traditional agency?

A full-time CTO costs $350k+ per year in salary plus equity, and takes months to recruit. A traditional agency will assign junior developers and build tickets without understanding your business model. As your Fractional CTO, Umesh Gupta brings 12+ years of engineering leadership (ex-Blinkit, ex-Porter, ex-Urban Harvest) on Day 1 at a fraction of the cost with zero equity dilution.

What are your core engineering specialties in E-Commerce, Logistics, and FinTech?

Our work spans three verticals: 1) E-Commerce & Quick-Commerce: 2-phase dark store inventory allocation, coupon AST evaluation, fast checkout, and multi-warehouse sync. 2) Last-Mile Logistics: Kuhn-Munkres bipartite fleet matching, Uber H3 spatial indexing, and GPS telemetry. 3) FinTech & Micro-Lending: Double-entry ledgers enforcing Sum(Dr) = Sum(Cr), integer micro-currency math, and algorithmic underwriting.

How do you work with international clients across the US, UK, Europe, and UAE?

We operate with standard bilateral IP assignments, settle in USD, AED, GBP, EUR, and INR, and offer daily synchronous timezone overlap: 1.5 hours difference with UAE (Dubai/Riyadh), 4–5 hours with London/Europe, and morning overlap with US East Coast (EST).

How do you understand our core business problem before writing code?

We do not treat engineering as an isolated ticket factory. We start by auditing your growth bottleneck: Is customer acquisition bleeding because of slow load times? Is churn happening due to broken transactional workflows? Are cloud costs eroding unit economics? Once we identify the real leverage point, we design and ship technology that directly moves business metrics.

Can you help us hire and scale an in-house engineering team?

Yes. We design the hiring rubric, source and interview senior engineering candidates, evaluate live technical submissions, and establish clean engineering documentation so your internal team scales with high velocity and zero technical debt.

07 GET STARTED

Solidify your architecture
with executive technical leadership.

Book a direct 20-minute video session with software architect Umesh Gupta. Response promise: same business day (IST).

WhatsApp +91 9717486696
Direct B2B engagement · Same business day (IST) response promise · 100% IP ownership.