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Featured · RealEstate
Rental Manager

3× faster transaction processing after full stack rewrite and UX overhaul.

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Payment dashboard rebuilt for 3× performance without a single minute of downtime
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No juniors on production code. Minimum 8 years average experience on every team. You talk directly to the engineers building your product.
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Every engagement begins with a written technical specification. No code is written until the architecture is agreed. Your estimates are accurate.
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Fixed-price projects run to scope. If we mis-estimate, we absorb the overrun. We have never passed an estimation error cost to a client.
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120+ projects, 20 countries
From fintech and healthtech to SaaS and retail — years of shipping products that work under real-world conditions.
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Latest from the studio
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AI - Artificial Intelligence
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May 17, 2026 · 12 min read
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Important
Beyond Traditional EDI: Building Resilient B2B Integration for the Digital Economy | Jun 30, 2026 Strategies to accelerate partner onboarding, strengthen supply chain resilience, and support ERP transformation
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Full-service engineering, end to end.

KB
What we build

From product strategy to production deployment — every layer covered.

Engineers who have shipped it before, at every stage of your stack.

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SaaS Development — We build SaaS products that scale from first customer to enterprise —…
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Mobile Development — 400+ mobile apps shipped. We know the difference between an app that…
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Cloud & DevOps — We never create cloud resources manually. Infrastructure as code from day one,…
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.NET Development — Enterprise-grade .NET applications that will still be maintainable in five years. Not…
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Engineering that delivers. Outcomes that last.

RealEstate · KBT · 2026

A full-stack rewrite and UX overhaul of a property rental management platform that had grown brittle under load. Key Brains rebuilt the transaction engine from the ground up, refactored the database layer, and redesigned the user interface — all while keeping the platform live with zero downtime throughout the migration.

3×
Faster transaction processing
Read the full case study →
RE
EdTech

An LMS platform serving 200+ institutions required a zero-downtime migration to modern cloud infrastructure. Key Brains architected and executed a phased migration plan, moving the entire platform to a containerised, auto-scaling stack.

200+
Institutions served without disruption
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LMS
Retail

A custom ERP built for a retail group operating across 15 countries — multi-currency support, integrations with 6 separate logistics providers, replaced 4 legacy systems with a single unified platform.

15
Countries on a single platform
4
Legacy systems replaced
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ERP
Reviews

A review aggregation platform — ingestion API, moderation dashboard, and an embeddable widget used on thousands of client websites. Built and deployed end-to-end by the Key Brains team.

1000s
Websites using the widget
99.9%
Uptime across all deployments
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RM
Important
From Legacy to Cloud-Native: A Practical Modernisation Playbook | Jun 20, 2026, 1 PM IST Accelerate software modernisation to streamline developer productivity, reduce technical debt, and lower operational risk.
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Why Key Brains?

From custom SaaS platforms to enterprise cloud infrastructure, our senior engineering teams have the depth to build software that holds up under real-world conditions — and the honesty to tell you what it will actually take.

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Lead in the digital era with Key Brains

From custom application development to enterprise cloud infrastructure — our senior engineers have shipped it across fintech, healthtech, retail, edtech, and SaaS.

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Inside Key Brains

Our company

15+ years. 120+ projects. 20 countries. A product-led engineering studio based in Jaipur, India — built for ambitious companies that need senior engineers with real domain depth.

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We hire senior engineers who care deeply about craft and impact — 6+ years experience, working on ambitious products across fintech, healthtech, and SaaS.

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