Technical Lead & Product StrategistMobile Systems · Business Strategy · User Retention

Technical Lead driving product strategy, scalable mobile apps & resilient backend architecture.

I am Vishal Joshi. With over 6+ years of engineering experience and an MBA in IT & FinTech, I combine cross-platform mobile engineering (React Native), backend microservices (Python/Django, Node.js, PostgreSQL), and active involvement in business strategy—evaluating feature impact, optimizing user retention funnels, and taking consumer platforms from concept to production on the App Store and Play Store.

6+ Years

Engineering & Leadership

1M+ Users

AstroKarma Platform Reach

20k+ DAU

Daily Active Consultation Users

99.9%

Real-Time System Uptime

Interactive System Architecture Nodes (Hover to interact)
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Engineering Case Studies

AstroKarma Consumer Platform Architecture

Comprehensive breakdown of consumer astrology products spanning dual Android/iOS applications, real-time consultation calling, per-minute billing, and multi-currency payment routing.

Flagship Platform Case Study

AstroKarma Dual-App Consumer & Astrologer Ecosystem

React Native · Django · AWS Chime · Agora · PostgreSQL

Product & Business Strategy Ownership

As Technical Lead & Product Strategist, I owned end-to-end technical execution and core product decisioning for AstroKarma—driving feature prioritization, user retention initiatives, and monetization strategy across:

User Mobile App

iOS & Android: Consultations, Kundali generation, daily horoscopes & wallet recharge.

Astrologer App

iOS & Android: Live consultation queues, earnings dashboard & availability controls.

Internal CRM

Web Portal: Onboarding, dispute resolution & payment audit logs.

Key Technical Achievements

  • Real-time Audio/Video Calling: Integrated AWS Chime and Agora WebRTC SDKs with fallback signaling servers.
  • Per-Minute Billing Engine: Synchronized dynamic countdown timers and wallet deduction micro-transactions.
  • Analytics & Growth: Integrated Mixpanel, AppsFlyer, and Google Analytics to track user retention, conversion funnels, and consultation completion rates.

AstroKarma System Lifecycle Diagram

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User AppReact Native (iOS/Android)Consultation GatewayQueue Router & Per-Min BillingDjango + Node + Redis + WebSocketsAstrologer AppAgora / AWS Chime CallPayment GatewaysMulti-Currency Auth
FinTech / International Payment RoutingMeasurable Impact: +24.5% Success Rate

Debugging International Payment Failures & Multi-Currency Routing

International users were experiencing elevated drop-off rates due to 3D Secure 2 authentication friction and cross-border bank rejections. I engineered a pre-auth gateway router that checks card country BINs, dynamically selects local gateway partners, and executes graceful fallback retries.

Gateway API3DS2 AuthPython / DjangoMixpanel Analytics
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Technical Capabilities & Expertise

Engineering Leadership

Team ManagementArchitecture PlanningCode ReviewsQA CoordinationRelease ManagementProduct Roadmapping

Mobile App Development

React NativeAndroid (Java/Kotlin)iOS (Swift/Obj-C)Push NotificationsApp Store PublishingPlay Store Publishing

Real-Time & Consultation Systems

AWS ChimeAgora SDKWebSocket MessagingPer-Minute BillingWallet EngineTurn-Based Queueing

Frontend Architecture

React.jsNext.js (App Router)TypeScriptTailwind CSSRedux ToolkitPerformance & SEO

Backend & Data Infrastructure

Node.jsPython / Django / DRFPostgreSQLPgBouncerRedis CachingRESTful & GraphQL APIs

Cloud & Product Analytics

AWS (EC2, S3, Lambda)Docker ContainersCI/CD PipelinesMixpanelAppsFlyerGoogle Analytics

Professional Experience

Technical Lead & Product Strategist

AstroKarma (Eleven Group) · Gurugram, India

2023 - Present

Directing technical execution and product strategy for AstroKarma under Eleven Group—scaling the platform to over 1M+ total users and 20k+ daily active users (DAU). Driving key business decisions around feature prioritization, user retention funnels, per-minute pricing models, and cross-functional engineering delivery across dual mobile apps (iOS/Android) and backend CRM.

  • Scaled architecture to support 1M+ registered users and 20,000+ daily active users (DAU) with 99.9% uptime during high-concurrency peak consultation events.
  • Led product decision-making on user retention and conversion funnels, optimizing consultation queue UX, per-minute wallet top-ups, and onboarding flows.
  • Architected real-time consultation engine supporting simultaneous live chat, audio, and video sessions with AWS Chime & Agora integrations.
  • Engineered multi-currency international payment routing, analyzing payment-failure data to improve checkout conversion rates by 24.5%.
  • Managed cross-functional mobile (React Native), backend (Python/Django), and QA engineers, owning app store releases and delivery roadmap.

Sr. Software Engineer

Eleven Tech Studio (Eleven Group) · Gurugram, India

2021 — 2023

Directing technical stack decisions, system design, and engineering teams delivering cross-platform mobile apps, SaaS web platforms, and REST microservices.

  • Architected and delivered scalable web and mobile applications through Eleven Tech Studio for products including Finncub, aiqahealth, ParallelCap, and other platforms.
  • Built end-to-end solutions across React, React Native, Django, REST APIs, and cloud infrastructure, covering product architecture, backend services, integrations, and production deployments.
  • Developed production-ready applications with multi-tenant architectures, secure API integrations, offline-first capabilities, payment workflows, and third-party service integrations.
  • Established automated CI/CD pipelines and streamlined development workflows, enabling faster, more reliable releases across multiple web and mobile products.

Software Engineer

Daffodil Software · Hisar, India

2020 — 2021

Engineered scalable full-stack applications, cross-platform React Native features, and enterprise web solutions for international clients.

  • Developed cross-platform mobile app modules using React Native and Redux.
  • Built resilient RESTful API endpoints and microservices in Python and Django.

Education & Credentials

Master of Business Administration (MBA)

Manipal University, Jaipur · Jaipur, India

2023 — 2025

Specialized in IT and FinTech with a focus on management, product strategy, and business leadership.

Bachelor of Technology (B.Tech) in Computer Science

Uttarakhand Technical University · Dehradun, India

2017 — 2020

Core foundation in software development, algorithms, system design, and database engineering.

Let's Build Together

Interested in discussing team leadership, mobile/full-stack architecture, or consulting? Send me a message below.