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We have Immediate requirement with our Direct Client as a Block Chain Engineer @ Austin TX (Hybrid ). if you are interested Please share your updated resume to [email protected]
Title : Block Chain Engineer (Only W2)
Location : Austin TX OR Southlake TX (Hybrid )
Description:
Responsibilities
- Blockchain & Crypto Platform EngineeringDesign, develop, and maintain integrations with public and permissioned blockchain networks, including but not limited to: Bitcoin, Ethereum, Solana, Chainlink
- Build secure APIs and middleware layers connecting enterprise applications with blockchain networks.
- Develop blockchain transaction orchestration services supporting deposits, withdrawals, transfers, staking, and settlement operations.
- Create reusable SDKs, microservices, and blockchain abstraction frameworks.
- Custody & Wallet InfrastructureArchitect and implement digital asset custody platforms supporting - Hot wallets, Warm wallets, Cold storage solutions, multi-signature wallets
- MPC (Multi-Party Computation) custody solutions
- Integrate with leading institutional custody providers such as - Coinbase Prime , Fireblocks, BitGo, Anchorage Digital
- Design secure key management and signing workflows.
- Implement wallet provisioning, address management, transaction signing, and reconciliation processes.
- Digital Asset OperationsBuild systems supporting Crypto trading and settlement, Stablecoin operations, Token issuance and management, Staking and rewards processing, Treasury and liquidity management , Blockchain monitoring and observability
- Support token standards including ERC-20, ERC-721, ERC-1155, SPL Tokens, and emerging digital asset protocols.
- Security & ComplianceImplement enterprise-grade security controls for digital asset platforms, Design secure custody and transaction authorization workflows, Partner with Risk, Compliance, Legal, and Cybersecurity teams. Support regulatory requirements including KYC/AML integration, Audit and reporting requirements
- Cloud & Platform EngineeringDevelop highly available blockchain services using cloud-native architectures.
- Build event-driven systems leveraging blockchain data streams.
- Implement CI/CD pipelines and infrastructure automation.
- Optimize scalability, resilience, and performance for high-volume crypto transaction processing.
Required Qualifications
- Experience8+ years of software engineering experience.
- 2+ years of hands-on blockchain and crypto platform development experience.
- Proven experience integrating with multiple blockchain networks.
- Demonstrated experience implementing institutional custody solutions.
- Experience building crypto wallets, transaction engines, or digital asset platforms.
Technical Skills
- Blockchain TechnologiesBlockchain nodes and RPC integrations, Smart contracts, On-chain data indexing, Blockchain explorers and analytics, Layer-1 and Layer-2 ecosystems
- Programming LanguagesJava, Python, Go, TypeScript, JavaScript , Solidity
- Cloud & DevOpsAWS / Azure / GCP, Docker, Kubernetes, Terraform, CI/CD pipelines
- Data TechnologiesPostgreSQL, MongoDB, Redis , Kafka, Event Streaming Platforms like Confluence
- SecurityCryptography fundamentals, HSM integrations, MPC technologies, Public/Private key infrastructure, Secure transaction signing
- Preferred QualificationsExperience in financial services, brokerage, banking, or wealth management environments.
- Experience working with digital asset exchanges and liquidity providers.
- Knowledge of tokenization, real-world assets (RWA), and decentralized finance (DeFi).
- Familiarity with institutional crypto custody operating models.
- Experience with blockchain analytics and compliance platforms.
- Desired CompetenciesDeep understanding of blockchain architecture and distributed systems.
- Strong problem-solving and system design skills.
- Ability to communicate complex crypto concepts to business and executive stakeholders.
- Experience leading architecture discussions and mentoring engineering teams
- Passion for emerging digital asset technologies and innovation.
- Nice-to-Have ExperienceTokenized securities and asset tokenization platforms, Central Bank Digital Currency (CBDC) initiatives, Digital identity and decentralized identity solutions, Cross-chain interoperability frameworks, Stablecoin infrastructure and settlement platforms, Institutional crypto trading platforms.
Satya Prasad Nakka
Iris Software
200 Metroplex Drive, Suite #300
Edison, NJ 08817
www.irissoftware.com
What is ERC20 example?
ERC20 is a standard for fungible tokens on the Ethereum blockchain
Here is an example of an ERC20 token
Let's say we create a new ERC20 token called ABC Token with a total supply of 1,000,000 tokens
Each token will be divisible up to 18 decimal places
To implement the ERC20 standard, we will need to define several functions, including:
- balanceOf(address): Returns the token balance of a specific address.
- transfer(address to, uint256 value): Transfers tokens from the caller's address to the specified address.
- approve(address spender, uint256 value): Approves a specific address to spend a certain amount of tokens on behalf of the caller.
- allowance(address owner, address spender): Returns the amount of tokens approved by the owner that the spender can transfer.
- User1 owns 500,000 ABC Tokens.
- User2 wants to buy 100 ABC Tokens from User1.
- User1 approves User2 to spend up to 100 ABC Tokens on her behalf.
- User2 calls the transferFrom() function with User1's address, his own address, and the value of 100 tokens.
- The transferFrom() function deducts 100 tokens from User1's balance and adds them to User2's balance.