Once a contract is created, it can never be changed again

All network members validate the output of a smart contract

Smart contracts are triggered without human supervision

Empower your blockchain projects with top-notch smart contract development services from SequenceWorks, a leading smart contract development company.

Our skilled smart contract developers specialize in creating robust smart contract solutions that leverage blockchain technology. As blockchain experts, we craft decentralized applications utilizing our extensive knowledge and expertise in smart contract development. Partner with us to benefit from our seasoned team of smart contract developers dedicated to providing tailored blockchain solutions that ensure security, efficiency, and reliability in the ever-evolving landscape of decentralized technologies.


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.


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


Powered by the immutability of the blockchain, our smart contracts hold the potential to encrypt every transaction record, making it impossible for hackers to gain access. Every block is associated with the previous block, which means one has to modify the entire chain to change any block.

Solve operational challenges

Blockchain smart contracts bring in measurable benefits with decreased processing time and digital service cost reduction, businesses can secure themselves from painful efficiency drops.

Easily switch providers while keeping a number

Rule out fraud during payment processing

Ensure complete workflow transparency

Simplify negotiations between business stakeholders and legal teams

Smart contract development

  • Automated data & asset ownership transfer
  • Zero-middlemen claim settlement
  • Blockchain document management
  • Insurance & real estate tokenization
  • Code-based invoice smart contracts
  • Payment smart contracts
  • Digital certificates & warranties
  • Domain-specific wallets
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Smart contract audit

  • Source code lockdown
  • Smart contract design & architecture analysis
  • Manual code review
  • Smart contract security audit
  • Flawed features detection
  • Overflow and underflow check
  • Complete functional & live testing
  • Ethereum smart contracts gas usage estimation
  • Detailed report & recommendations list
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Smart contract optimization

  • Platform-specific analysis
  • Smart contract performance validation
  • Resource consumption minimization
  • TCO reduction
  • Protection from service attacks
  • Secure random number generation
  • Correct cryptographic signature validation
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How we make it happen

The life cycle of a smart contract ensures that the business requirements are correctly defined and secured by the technology.

Simple smart contracts

This category includes contracts that have legal implications for parties that fail to fulfill their part of the agreement. They are also known as smart legal contracts.

Complex smart contracts

Complex contracts include Decentralized Autonomous Organizations (DAO) and Application Logic Contracts (ALC).

Requirement Gathering

We review the specific business conditions of the smart contract as defined by the parties involved.

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

Technical Design

Once the business logic has been determined, we design the architecture of the contract to represent that logic. This serves as a blueprint during the development process.

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

Development and Audit

This stage involves writing the smart contract code for the blockchain platform of choice. This step also includes unit testing to determine if the contract performs as designed. An internal audit via a local blockchain and then a testnet is performed to ensure that the contract functions as intended, and meets all security standards.

  • Alpha
  • Beta
  • Release Candidate
  • Production


The contract is deployed on the marketplace on which it will operate.

  • Provisioning
  • Deploy on determined network
Multi-platform support

Our tool chain versatility


Working as autonomous agents, Ethereum smart contracts get launched by a user or another contract that sends a message with transaction fees.


Providing a unified smart contract development environment via x64 VM and EVM, Echo handles complex algorithms and calculations, and supports multiple tools, third-party libraries, and languages like Solidity, C++, Go.


Hyperledger smart contracts can be considered as governing transactions, while chaincode manages the way they get packaged for deployment.

R3 Corda

Corda smart contracts are the agreements that can be either code-executed or managed via human input, with legally enforceable obligations and rights.


Flow smart contracts are written using the new resource-oriented programming language called Cadence. Smart contracts can be first released on the Flow mainnet in a “beta state” and then upgraded by the developers.


Solana smart contracts are called programs. It is possible to create dApps using existing programs. Solana’s own programs, in turn, are built using languages such as Rust, C, and C ++ and deployed on-chain.

Binance Smart Chain

As an Ethereum-compatible blockchain, Binance Smart Chain offers the same smart contract capabilities, but with lower fees and faster transaction speeds.


EOSIO blockchain-based smart contracts support code versioning, which allows developers to renew their existing dApps’ feature list.

Ready to build the next-gen solution

We help you handle the strain on your business continuity plans via future-proof blockchain smart contracts.