Gunjan Sharma — CTO

I build systems that survive. Not just features that ship — the foundational layer underneath: the tokenization engine, the security infrastructure, the cloud architecture that keeps everything running when traffic spikes and edge cases become real incidents. At Alt DRX, I came in as an engineer and ended up owning the full technical picture — blockchain settlement on XRPL, cloud cost optimization on AWS (cut costs 50%), a Flutter + web platform serving real investors, and an engineering team I hired and built from zero to 30+ people. The company scaled to a ₹450CR+ valuation. I wrote a lot of the core code that made that possible. → SQFT Tokenization engine — ₹100CR+ in on-chain transactions across XRPL, Ethereum, IPFS, Polygon → In-house security layer — audit trails, cryptographic logging, HMAC signing, OWASP-hardened APIs → Custom Deep Link system — replaced AppsFlyer/Adjust to own attribution data → Browser fingerprinting + Play Integrity-style compliance for fintech regulatory requirements → Payment Infrastructure — Kafka + Redis + MySQL processing ₹50L+/week, zero downtime → Logging Engine — in-house observability handling 5L+ log events/day across all microservices → Core Microservice Platform — powering WhatsApp, Web & App for 1L+ daily users → Mobile Platform — Flutter + Native Android/iOS used by 2L+ users, owned architecture to delivery → Open Source — OWASP hardening, HMAC signing, blockchain primitives, novel encryption · Node.js & Flutter I've published 8 technical books on Flutter, TypeScript, Node.js, MongoDB and ReactJS — on Amazon and Google Books. Writing books forces a different kind of understanding. I interview for system thinkers, not framework users. I've personally interviewed 100+ candidates and hired 30+ engineers across three startups. The ones who last understand why, not just how. My core depth: Backend systems (Node.js, TypeScript, Go), Cloud infrastructure (AWS primarily), Security (HMAC, JWE, encryption, OWASP), Blockchain (XRPL, Ethereum, Polygon). I work across the stack when needed — Flutter, Next.js, Android — but backend architecture and security is where I think clearest. Currently going deep on distributed systems fundamentals, reliability engineering, and agentic AI infrastructure. Outside work: philosophy, meditation, and occasionally building something just to understand how it breaks.

Stackforce AI infers this person is a Fintech and PropTech Backend Architect with strong cloud and blockchain expertise.

Location: Bengaluru, Karnataka, India

Experience: 5 yrs 1 mo

Skills

Cloud Infrastructure
Blockchain
Team Leadership
Backend Development
Full Stack Development
Frontend Development
React Development
Android Development
Java Development
Mobile Development
Web Development
Digital Marketing
Graphic Design

Career Highlights

Architected systems handling ₹100CR+ in transactions.
Scaled engineering team from zero to 30+ engineers.
Published 8 technical books on software development.

Work Experience

Alt DRX

Engineering Lead & System Architect (Frontend, Backend, Cloud & Blockchain Solutions Architect) (1 yr 10 mos)

ZAREKTRONIX TECHNOLOGIES

SDE-III & Team Lead (Frontend & Backend Solutions Architect) (5 mos)

TechieAid

NodeJS Backend Developer (2 yrs 3 mos)

ReactJS Developer (2 yrs 10 mos)

RKV IT Solutions Pvt Ltd

Native Android & Java Spring Boot Paid Internship (10 mos)

MagadhTV News Platform

MagadhTV News Platform (1 yr 11 mos)

Webtech Technologies

Webtech Technologies (1 yr)

Evokeup Media Agency

Evokeup Media Agency (11 mos)

AdZone Media

AdZone Media [2014 -2015] (11 mos)

Education

Bachelor's degree at Patliputra University

Intermediate (12th) at Swami Sehjanand College of Higher Education

Matric at High School Sonwan

Mathematics at Prathibha Pallav(P.P) Public School

Gunjan Sharma

CTO

Bengaluru, Karnataka, India5 yrs 1 mo experience

Most Likely To Switch

Key Highlights

Architected systems handling ₹100CR+ in transactions.
Scaled engineering team from zero to 30+ engineers.
Published 8 technical books on software development.

Stackforce AI infers this person is a Fintech and PropTech Backend Architect with strong cloud and blockchain expertise.

Contact

Skills

Core Skills

Cloud InfrastructureBlockchainTeam LeadershipBackend DevelopmentFull Stack DevelopmentFrontend DevelopmentReact DevelopmentAndroid DevelopmentJava DevelopmentMobile DevelopmentWeb DevelopmentDigital MarketingGraphic Design

Other Skills

Node.jsNestJSAmazon Web Services (AWS)SecurityFlutterReact.jsQuality AssuranceProject ManagementSystems EngineeringAWSProblem SolvingNodeJDartTeam ManagementWeb Technologies

About

Experience

5 yrs 1 mo

Total Experience

1 yr 8 mos

Average Tenure

1 yr 10 mos

Current Experience

Alt drx

Engineering Lead & System Architect (Frontend, Backend, Cloud & Blockchain Solutions Architect)

Jul 2024 – Present · 1 yr 10 mos · Bengaluru, Karnataka, India · On-site

Platform Architect & Lead (B2C India Unit) | Alt DRX • Full-time
The Mission: Transformed a legacy codebase into a scalable, high-performance ecosystem powering a startup valued at ₹400CR+.
As a hands-on architect, I didn’t just manage the roadmap—I coded foundational systems, re-architected the platform, and scaled the engineering team from the ground up.
Key Engineering Impact:
Blockchain & Tokenization (The Core)
Architected the flagship SQFT Tokenization engine handling ₹100CR+ in on-chain transactions.
Built decentralized ledger solutions integrating XRPL, IPFS, Ethereum, and Polygon for immutable asset security.
Cloud & Infrastructure (The Scale)
Reduced cloud costs by 50% through architectural optimization on AWS & Azure.
Led distributed teams to deliver secure, scalable cloud strategies, moving from startup chaos to enterprise reliability.
Backend & Security (The Backbone)
Built high-availability systems using Go, Python, and Node.js.
Created in-house solutions for Security Logging, Caching, and Audit Trails, favoring transparent, maintainable code over black-box tools.
Full-Stack Engineering (The Experience)
Web: Built fingerprinting and Play Integrity-style browser security for Fintech compliance; real-time PM2 log streamer for Next.js.
Mobile: Architected Flutter & Native Android apps; authored open-source packages including cryptographic tools and http_on_steroids caching.
Innovation: Built a custom Deep Link system replacing AppsFlyer/Firebase to own attribution data.
Leadership & Culture (The Team)
Hiring: Scaled the team from scratch to 30+ high-quality engineers.
Culture: Personally interviewed 100+ candidates, optimizing for "System Thinkers" over "Framework Users." Built a culture of engineering excellence, hands-on ownership, and code pragmatism.
The Philosophy: I build systems that survive. From low-level cryptographic packages to high-level cloud architecture, I own the stack.

Node.jsNestJSAmazon Web Services (AWS)SecurityFlutterReact.js+5

Zarektronix technologies

SDE-III & Team Lead (Frontend & Backend Solutions Architect)

Feb 2024 – Jul 2024 · 5 mos · Bengaluru, Karnataka, India · On-site

1. Joined here as Senior Software Engineer and Team Lead @Zarektronix Technologies.
2. The CTO Left the company for some reasons so I got full responsibilities and got promoted to VP of Tech.
3. I am handling team of Nine software Engineers(DevOps, QA, Graphic Designers, Flutter, ReactJS and NodeJS).
4. I took more than 400 interviews for Frontend, QA Testing, Graphic Designer, and Backend Roles.
5. I hired Six Engineers after conducting hundreds of Interviews.
6. I Led and designed the Low-Level and High-Level systems of complex Proptech startups to sustain a 100 Million scale.
7. Launched the site, got solid product-market fit, and integrated the business logic with stakeholders.
8. Apart from managing the team, I coded the Flutter App and the complex Backend system of our startup.
9. Looking at my team management and coding skills, the board offered me stakes in the company and offered me to take over as CTO.
10. Wrote PRD, Scope of Work, and Technical Documentation and designed complex scalable systems at Low Level and High Levels.

Problem SolvingFlutterNodeJTeam LeadershipDartTeam Management+5

Techieaid

2 roles

NodeJS Backend Developer

Promoted

Nov 2021 – Feb 2024 · 2 yrs 3 mos · Bengaluru, Karnataka, India

1. Degree completed, came to Bengaluru and got a job as Flutter Intern.
2. I had full-time Job offers on Native Android and Spring Boot but chose an Internship due to a lack of confidence.
3. Having strong root in Native Android, I mastered Flutter within weeks and secured Full time Job offer within a month.
4. Next two years worked in Flutter and developed 3 complex apps from UI design to automated Playstore deployment.
5. Learned ReactJS and developed complex Admin Panel and dashboard management websites.
6. Having solid foundations in Spring Boot, I quickly grasped NodeJS and started working as Full Stack Developer.
7. From Intern to Senior Developer handling two frontend projects and a backend project, I worked here for 3 years.
8. Started Trading, traded equities in Intraday, and wrote 70+ trading algorithms in TradingView PineScript for Algorithmic Trading.

MongoDBApplication ArchitectureProblem SolvingSOAPNode.jsSoftware Integration+19

ReactJS Developer

Jan 2021 – Nov 2023 · 2 yrs 10 mos · Bengaluru, Karnataka, India

Application ArchitectureSQLProblem SolvingSOAPNode.jsFlutter+24

Rkv it solutions pvt ltd

Native Android & Java Spring Boot Paid Internship

Mar 2019 – Jan 2020 · 10 mos · Patna, Bihar, India · On-site

1. Desperate to do my own business, forcefully enrolled in a BSc (IT) degree course.
2. Soon I joined RKVIT Technologies for free to learn and develop Native Android Applications while degree.
3. I worked and contributed heavily on Java Spring Boot, Native Android and Java Swing GUI development.
4. Same time I launched 50+ Android apps on Google Play store to make AdMob Advertisement Revenue.
5. Developed & Launched Apps like mWallpaper, Online Home Jobs, Govt Exam Alerts, RTO Information, and lot others.
6. Integrated AdMob, RevAds, Twitter Ads, and several other monetization services in my apps to make money.

Java Database Connectivity (JDBC)Problem SolvingInversion of Control (IoC)JenkinsSpring FrameworkSpring Design+13

Magadhtv news platform

MagadhTV News Platform

Jan 2017 – Dec 2018 · 1 yr 11 mos · Jehanabad Tehsil, Bihar, India · Remote

1. Built MagadhTV Native Android app for hyper-local instant news publishing and consumption.
2. Used Parse server, Firebase Authentication, Firebase Storage, Firebase Cloud Functions, and Firebase Authentication to full extent.
3. Partnered with Local MLA and got 5 Lakh investment, bought office space, hired reporters, and started the service.
4. MagadhTV got 15K+ downloads and I exhausted Firebase's free 1M read/write tier for my app.
6. Developed client-side compression package to compress video news before pushing it to Firebase Bucket.
7. Got a huge server bill from the Firebase storage bucket for video news streaming which caused us to shut down the app.
8. Hired Freelancer to implement Deep Linking feature for sharing news article in MagadhTV app.
9. In the process mastered Native Android development that can handle scale of millions of users.

Android DevelopmentFirebaseGoogle Cloud Platform (GCP)Mobile Development

Webtech technologies

Webtech Technologies

Jan 2016 – Jan 2017 · 1 yr · Jehanabad Tehsil, Bihar, India · Remote

1. Started Webtech Technologies to offer Website and Mobile Development services to Local businesses.
2. Mastered WordPress, WooCommerce, and Shopify web Development to offer my services to clients.
3. Hired Intern for cold calling Hospitals, Schools, and Local businesses for their website development.
4. Hired Freelance HTML/CSS developers and assigned them my client work.
5. Developed and delivered 30+ static websites for Local businesses and made good money.
6. Developed Spring Boot service with Twillio for automated bulk calling by reading from CSV file(Java PIO)
7. Sold my Bulk calling software to 10+ Local politician for their election advertisement directly on mobile phones.

Web DevelopmentWordPress DesignWooCommerceShopify

Evokeup media agency

Evokeup Media Agency

Jan 2015 – Dec 2015 · 11 mos · Jehanabad, Bihar, India · Remote

1. Started my second business Evokeup Media Agency for digital marketing for Local businesses.
2. Learned SEO and Digital Marketing and started providing services for Local businesses in Jehanabad.
3. Learned ASO(App Store Optimization) and provided ASO for some USA Clients.
4. Mastered the art of cold calling and cold emailing to get leads for my agency.

Search Engine Optimization (SEO)App Store OptimizationCold CallingDigital Marketing

adzone media

AdZone Media [2014 -2015]

Jan 2014 – Dec 2014 · 11 mos · Jehanabad, Bihar, India · Remote

1. Started my first company AdZone Media for local businesses to publish ads in the Local Newspaper.
2. Negotiated Newspapers for agency discount on bulk advertisement publishing.
3. Helped 30+ Local businesses to publish their Ads in Local media
4. Hired Freelance Graphic designers to create graphics for advertisements.

Adobe PhotoshopGraphic Design