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Smart Contract Development

Revolutionize your business with our smart contract development services for private, public and hybrid blockchains. With deep expertise in various smart contract programming languages and tech stacks, our smart contract services help enterprises automate their operations, streamline workflow, and reduce the cost of key processes.

Smart Contract Development

Fullstack Developers

Software Products delivered

AI Solutions

Total Years of Experience

Benefits of Smart Contracts for Your Business

Embrace the power of smart contracts to automate the execution of operations in your organization while benefiting from the following capabilities:
smart contract development


Codes in our smart contracts are triggered automatically by an on-chain transaction, resulting in the immediate execution of the contract once the predetermined rules are met. The process eliminates the need for any escrow, paperwork and rectification of errors manually.

smart contract developers

Trust and transparency

With no third-party involved and the encrypted transactions recorded on a distributed ledger, our smart contracts dismiss the possibilities of human manipulation and other vulnerabilities. Only the participants can access the data and validate it for further process execution.

smart contract development services


We design smart contracts to perform every operation automatically with no intervention from intermediaries, saving the cost of paying fees to these intermediaries and the time consumed in managing multiple roles in an organization.

smart contract developers


We build highly secure smart contracts that hold the potential to encrypt every transaction record, making it impossible for hackers to gain access.

Our Smart Contract Development Services

smart contract development services

Smart Contract Architecture

Our expert team abides by the best smart contract architecture building practices to ensure no bugs or programming issues emerge in the codes and the contract produces the expected result.

smart contract development services

Smart Contract Design and Development

We design and develop customized, self-executing business contracts on a wide range of public, private, and hybrid blockchains that align with the unique requirements of diverse industries.

smart contract development services

Smart Contract Audit

As a smart contract development company, we thoroughly audit the programmed code before deploying it on the mainnet, removing bugs and security vulnerabilities to ensure complete robustness.

smart contract development services

Smart Contracts Optimization

Our team presents a prototype of a smart contract optimization approach to the client and implements it to optimize the smart contract to reduce the average gas cost and computation resources.

Smart Contract Programming Languages Our Experts Use



Solidity is a high-level programming language used to write smart contracts on Ethereum. It has similar features to that of Python, Javascript and C++. Solidity is a contract-oriented programming language, meaning that smart contracts can store the programming logic. It supports libraries & inheritance and is typed statistically.



C++ is a general-purpose programming language best suited for developers building on EOS blockchain. One of the best features of C++ is that it can scale resource-intensive applications and run them seamlessly.



An open-source programming language, Golang, was innovated by Google and is based on the C programming language’s syntax. It promotes concurrent programming, allowing various processes to function simultaneously.



JavaScript is a dynamic object-focused programming language and is one of web design’s fundamental pillars. Developer’s on the NEO blockchain use JavaScript to write smart contracts.



Java is another object-oriented programming language that is class-based, and much of Java’s syntax has been derived from the C++ programming language. Developers can use Java to create smart contracts on the NEO blockchain seamlessly.



Rust is a statistically-typed low-level programming language. It is memory efficient and fast and has a color-coded output along with a detailed error output to assist developers in the debugging process.



Python is an all-purpose and high-level interpreted programming language. It was constructively innovated to focus on the readability of different codes by the developers.

Ethereum Smart Contract Token Standards We Have Expertise In



ERC-1155 is a smart contract interface that allows tokens to be fungible, semi-fungible, or non-fungible. The goal of creating such a distinct token standard was to create a strong, smart contract interface that defines and manages various ERC tokens.ERC-1155 is a smart contract interface that allows tokens to be fungible, semi-fungible, or non-fungible. The goal of creating such a distinct token standard was to create a strong, smart contract interface that defines and manages various ERC tokens.



ERC-20 is a smart contract token standard that requires one common smart contract that describes the function and event signature of ERC20 tokens. It also has a set of properties that enable the development of identical tokens.



ERC-721 is a smart contract token standard requiring distinctive smart contracts for every token. Because these tokens are unique, they cannot be exchanged for anything of equal value.

Our Blockchain Development Work


Web3: File Retrieval Dashboard

FileCoin Dashboard: A Web3 File Retrieval Network Monitoring Dashboard for the FileCoin Users

A dashboard for the Web3 Content Delivery Network (CDN) that lets Filecoin users stay informed on the performance of the best file retrieval networks. This platform helps to gather and analyze data from several data sources and displays real-time performance indicators on a detailed dashboard that is simple to grasp.

Software Development


Monetary System on the Blockchain

We built a comprehensive monetary system on the blockchain that facilitates the storage and trading of digital currencies into a wide range of crypto and fiat currency, all from one simple interface. We helped our client redesign the user interfaces of their website, create the node monitoring dashboard, update the stellar core version, and provide maintenance services to ensure that the platform is up and always running.

NFT Marketplace Solution


NFT Marketplace Solution

We have built a custom ready-to-deploy NFT Marketplace Platform to allow users to launch their own NFT marketplace platform and drive users to convert their unique assets into NFTs. The platform offers seamless options for technical and non-technical users to buy/sell NFTs.

NFT Marketplace Solution

Our Blockchain Smart Contracts Focused Industries

healthcare blockchain


Smart Contracts enable ownership of patients’ data by offering controlled data disclosure to every involved member of the network.

blockchain in Government


Smart contracts allow every member involved in the blockchain platform to measure the impact of social impact at every step of the process.

Blockchain in Media


Smart Contracts in the Media industry ensure content ownership, fair evaluation, and eliminating intermediaries.

blockchain in Identity Management

Identity Management

Blockchain identity management allows people to create a self-sovereign identity by enabling control over identity and personal information.

blockchain in supplychain


LeewayHertz has deployed blockchain on the supply chain, which offers an updated and validated shared ledger with each network participant.

blockchain in lending


Integrating blockchain into the current P2P lending system can reduce delays, make quick approvals, eliminate the need for intermediaries, and bring transparency.

Blockchain Platforms, We Work On



Utilizing the underlying benefits from Polkadot’s Relay chain, we build powerful pallets with no downtime while making them easily upgradable based on the changing requirements.

Polygon Matic

Polygon Matic

Polygon (MATIC) is an Ethereum token that boosts the Polygon Network. Polygon is a Layer-2 solution created to assist in scaling and enhancing the functionality of the Ethereum network.



Avalanche is a robust, programmable and rapid smart contract platform that supports custom virtual machines like WASM and EVM. It uses the Golang programming language and has the highest sub-net transaction.

Near Protocol

Near Protocol

Our smart contract developers are skilled in creating smart contracts for Near that can utilize the platform’s unique sharding technology to enable fast and secure transactions at a low cost.



Leveraging the benefits of the Ethereum blockchain, such as high scalability and EVM compatibility, we write reliable smart contracts to support new-age dApps development.



With proficiency in smart contract programming languages like Go and JavaScript (node. js), we create smart contracts called Chaincode in Hyperledger to support enterprise-grade dApp development.



Our smart contract on TRON- a Turing-complete machine supports the functions required to facilitate the development of efficient, stable, secure, and scalable decentralized solutions.



With our approach to learning and acquiring expertise in various smart contract programming languages, we write more dependable and secure smart contracts for Tezos in its unique language, Michelson.



Solana is known as a public blockchain network that is decentralized and open-source in nature. It attains consensus through Proof-of-History and Proof-of-Stake.



Binance Chain (BC) is a decentralized network created by Binance to provide a decentralized exchange (DEX) for cryptocurrency assets. It is based on Tendermint Byzantine Fault Tolerance (BFT) consensus and delegated Proof-of-Stake.



Cardano is a third-generation blockchain resolving issues like scalability, interoperability, and sustainability in first and second-generation blockchains.


XDC Network

We leverage the open-source delegated proof of stake consensus XDC ecosystem to build
highly efficient and interoperable smart contracts for enabling multi-chain accessibility.


LeewayHertz Clients

Our Smart Contracts Development Process

Requirement Gathering

  • Understanding the requirements for New and Existing Application
  • Identify business logic to be migrated to Smart Contracts
  • Roadmap of the product

Team Members

  • Solutions Specialist
  • Technical Lead
  • Business Analyst
  • Solidity Consultant


  • NDA
  • Use Cases
  • Proposal for Technical Design

Technical Design

  • Smart Contracts Definition Document
  • Create Data Flow diagrams
  • Design technical Architecture
  • Document technical GDPR compliance requirement
  • Create sprints and delivery milestones

Team Members

  • Business Analyst
  • Solution Specialist
  • Product Manager
  • Solidity Architect
  • Developers


  • Flow diagram
  • System blueprint
  • Epics and User stories
  • Document scalability and security requirements


  • Alpha
  • Beta
  • Release Candidate
  • Production

Team Members

  • Developers
  • Quality Assurance
  • Team Leads
  • Scrum Master
  • Technical Architect


  • Source code
  • Smart Contracts
  • Builds
  • Test Blockchain Deployment


  • Provisioning
  • Deploy on Main Network

Team Members

  • DevOps
  • Quality Assurance
  • Delivery Manager


  • Main Network Release
  • Rollout execution


  • Requirements gathering
  • Backlog prioritization

Team Members

  • Developers
  • Quality Assurance
  • Team Leads
  • Scrum Master
  • Technical Architect


  • Upgrades Smart Contracts
  • Deploy new contracts

Our Engagement Models

Dedicated Development Team

Our blockchain developers are hands-on the cognitive technologies to deliver high-quality services and solutions to clients.

Team Extension

Our team extension model is intended to help clients who want to extend their team with the right expertise required for their project.

Project-based Model

Our project-based model and software development specialists are there for customer collaboration and specific client project engagement.

Get Started Today

1. Contact Us

Fill out the contact form protected by NDA, book a calendar and schedule a Zoom Meeting with our experts.

2. Get a Consultation

Get on a call with our team to know the feasibility of your project idea.

3. Get a Cost Estimate

Based on the project requirements, we share a project proposal with budget and timeline estimates.

4. Project Kickoff

Once the project is signed, we bring together a team from a range of disciplines to kick start your project.

Start a conversation by filling the form

Once you let us know your requirement to our Smart contracts developer, our technical expert will schedule a call and discuss your idea in detail post sign of an NDA.

All information will be kept confidential.


Do you also have these questions?

What is a Smart Contract?

A smart contract is a computer program that manages the exchange of assets or digital currencies between parties when the pre-defined conditions are met. It not only defines the rules of an agreement but also enforces the obligations automatically. 

For example, the property’s ownership can be transferred to the new owner automatically with smart contracts when money is sent to the seller’s account. 

Why should one prefer smart contract technology over traditional contracts?

As contracts are the source of many legal and business conflicts, they are always considered contempt. They often lead to disputes when they are not appropriately drafted or communication breakdown. Business professionals have been looking for ways to avoid contract conflicts with the technological revolution. 

Traditional contracts usually involve one or more parties, multiple lawyers and various rounds of negotiations. The result of negotiations is a lengthy document which has to be signed by different parties. 

Before the introduction of smart contracts, people had to store paper copies of agreements in file cabinets. Smart contracts have been named as “smart” because of the technology-derived solutions. Similar to traditional contracts, smart contracts are agreements that execute specific actions based on the performance without the need of a trusted party. 

Due to its immutability feature, smart contracts are secure and tamper-proof; therefore, do not require any third party for building trust between obligating parties. 

What is Smart Contract Development?

A smart contract is a set of computer code that runs on the blockchain network. They have gained attention due to their ability to enforce and execute an agreement automatically between untrusted parties without the involvement of intermediaries.

Smart Contract Development allows you to replace traditional contracts by binding them in executable code. With expertise in smart contract development tools and programming languages like Remix, Solidity, Go, JavaScript, our smart contract developers build secure and bug-free smart contracts. 

How smart contract platform works?

To understand how a smart contract works, let’s consider one example. 

Suppose that Alice wants to buy John’s house. The agreement for buying a home is created on the blockchain platform using smart contract. 

The smart contract comprises of an agreement between Alice and John. The agreement might look like: “When Alice pays John 30BTC, then Alice will receive the house ownership.” 

Once the smart contract agreement is written, it cannot be updated and Alice feels safe to transfer bitcoins to John for the house. 

Without smart contracts, Allice and John would have to pay additional fees to third-party companies, lawyers, house brokers and banks. You would not have to deal with no more commissions and delays to wait for a broker and legal expert to process your request. 

It becomes possible with the blockchain technology. Smart contracts can be decentralized, so any centralized authority does not handle them.