Simplileap logo

// Build

Blockchain Development Company in Bangalore

dApps, DeFi interfaces, smart contract integration, wallet connectivity, and on-chain data indexing. We build decentralised applications that users trust with their assets, because we treat security as a first-class engineering requirement.

Featured by QuickNode for blockchain infrastructure work ›

EVM + Solana

Chain support

300+

Wallets supported

Multi-chain

Architecture approach

Security first

Engineering standard

// Standards

Web3 engineering standards

Security by design

Transaction simulation before signing, explicit approval display, signature verification, and no private key exposure anywhere in the stack.

Wallet-agnostic

WalletConnect v2 + RainbowKit support for 300+ wallets. No MetaMask dependency that excludes mobile users.

Gas-efficient UX

Gas estimation with buffers, batch transaction design, and clear gas cost display before every user action.

Multi-chain ready

Chain-agnostic abstractions that support Ethereum, Polygon, Base, Arbitrum, and other EVM chains without architecture rewrites.

Type-safe contracts

Typed contract interactions with viem + generated ABIs, eliminating a class of runtime errors from contract integration code.

On-chain monitoring

Event monitoring, transaction success tracking, and anomaly detection for production dApps handling user funds.

// Technology

Web3 technology stack

Frontend & Wagmi

Next.jsReactwagmi v2viemRainbowKitConnectKit

Smart Contract Layer

SolidityHardhatFoundryOpenZeppelinEthers.jsABI types

Data & Indexing

The GraphMoralisAlchemyQuickNodeInfuraDune Analytics

Wallets & Auth

MetaMaskWalletConnect v2PrivyDynamicMagicSIWE

Chains

EthereumPolygonBaseArbitrumOptimismSolana

Storage & Infra

IPFSArweavePinataNFT.StorageVercelRailway

// Process

From protocol analysis to mainnet launch

01

Protocol Discovery

2–3 days

Target chain analysis, smart contract interface review, wallet strategy, and data access pattern mapping. Security considerations documented upfront.

// Stack & frameworks

Stack we use for this

Smart contracts

  • Solidity / Hardhat
  • OpenZeppelin
  • Audit prep
  • Testnet deployment

dApps

  • ethers.js / wagmi
  • Wallet connect
  • IPFS metadata
  • Indexers

Custody & APIs

  • Fireblocks patterns
  • Tatum integrations
  • Webhook reconciliation
  • Multi-sig flows

// Delivery

Simplileap execution framework

01

Architecture mapping

Dependencies, API contracts, compliance constraints, and performance budgets documented before sprint one.

02

Secure sprints

Two-week increments with GitHub access, demo recordings, and QA checkpoints, client visibility at every stage.

03

QA & handover

Automated tests on critical paths, security review, runbooks, and knowledge transfer to your team.

// Proof

Real deployments from Bangalore

Retail loyalty consortium

Challenge
On-chain rewards without forcing all users to self-custody wallets.
Simplileap solution
ERC-1155 on Polygon, WalletConnect, and custodial fallback pool.
Outcome
48,000 wallets in first campaign month; zero critical audit findings.
Read full case study ›

DAO tooling startup

Challenge
Governance token needed audit-ready test coverage and access controls.
Simplileap solution
Slither analysis, TimelockController, and expanded Hardhat suite.
Outcome
Mainnet on schedule; no post-deploy contract incidents in 90 days.
Read full case study ›

// Engagement models

How teams engage us

Currency
PackageIdeal forInvestmentIncludes
MVP platform buildStartupsFrom ₹5L scoped
  • · Discovery
  • · Full-stack build
  • · CI/CD
  • · Launch support
API & integration layerEnterpriseSquad retainer
  • · Typed APIs
  • · Third-party sync
  • · Observability
  • · Documentation
Legacy modernisationRegulated teamsPhased proposal
  • · Architecture audit
  • · Phased migration
  • · SEO continuity
  • · Security review

// Company and service positioning

Company and Service positioning is reviewed for production delivery standards by Harsha Parthasarathy (Co-Founder, Strategy & Operations 24+ years IT veteran, IBM, Global Delivery, Program Management) and Keshav Sharma (Co-Founder, Engineering and Lead Architect, Full-stack engineering, product delivery and technical standards).

// Verified entity

Simplileap Digital LLP

// Recognition

Featured in QuickNode Feature Fridays

CIN

AAU-8582

Startup India

Founded

November 2020

Office

Residency Rd, Bengaluru, India

// FAQ

Common questions about Web3 development

Which blockchain networks do you build for?+

EVM-compatible chains (Ethereum, Polygon, Base, Arbitrum, Optimism, BNB Chain) and Solana. Multi-chain within a single dApp is supported through chain-agnostic abstractions.

Do you audit the smart contracts you integrate with?+

We conduct internal security reviews on all contracts we integrate with. For contracts we write, we recommend third-party audits for any contract handling significant value before mainnet deployment.

Do users need MetaMask to use our dApp?+

No, we implement WalletConnect v2 which supports 300+ wallet apps. For mainstream audiences, we can implement embedded wallets (Privy, Dynamic) that use email/social login without requiring any wallet installation.

Can you build a DeFi interface for an existing protocol?+

Yes, we build protocol interfaces for existing deployed contracts. We need the contract ABIs, deployment addresses, and protocol documentation to scope the integration.

How do you handle real-time blockchain data in the UI?+

The Graph subgraphs for indexed historical data (fast, cost-free queries), Moralis Streams or WebSocket subscriptions for real-time events, and polling with SWR/React Query for current state that changes periodically.

Ready to build on decentralised infrastructure?