Smart Contract Developer

**Role Responsibilities**
- Design, develop, and maintain **secure, efficient, and upgradable**smart contracts using **Solidity**:

- Implement **upgradable contract patterns (e.g., UUPS, Diamond Storage)**to ensure flexibility and maintainability
- Develop, test, and deploy smart contracts using **Hardhat** and related development tools
- Interact with Ethereum and other EVM-compatible networks using **ethers.js** and blockchain development frameworks
- Work with blockchain infrastructure and security tools, including **Alchemy SDK**and** Fireblocks SDK** for managing blockchain transactions and security
- Collaborate with frontend teams to integrate smart contracts with **Wagmi**and other Web3 libraries
- Participate in the** on-call rotation**, responding to incidents related to blockchain infrastructure and smart contract operations
- Implement monitoring, alerting, and logging for blockchain-related services to ensure system stability
- Work closely with backend, DevOps, and security teams to ensure smooth deployment and secure integration of smart contracts

**Required Education & Experience**
- **5+ years** of experience in **smart contract development**with **Solidity**:

- Proficiency in **smart contract security best practices**, including **common attack vectors (e.g., reentrancy, front-running, integer overflow/underflow).**:

- Hands-on experience with** upgradable**contract patterns such as **UUPS, Diamond Storage**:

- Strong experience using **Hardhat**for smart contract development, testing, and deployment
- Proficiency with** ethers.js**for interacting with Ethereum and other EVM-based networks
- Experience with **Alchemy SDK** and **Fireblocks SDK** for blockchain development and security
- Familiarity with **Wagmi**for frontend blockchain interactions
- Experience working with **Azure Cloud Services,**including deploying blockchain infrastructure
- Experience with** CI/CD pipelines and DevOps practices** (e.g., GitHub Actions) for automated smart contract deployments
- **Ability to work under pressure** and handle high-priority incidents efficiently
- Strong communication skills in **English and Vietnamese** for effective collaboration with global and local teams.

**Preferred Qualifications**
- Experience working with **layer-2 scaling solutions** (e.g., Optimism, Arbitrum, zkSync)
- Familiarity with **smart contract auditing tools** and security analysis
- Knowledge of **Ethereum RPCs and blockchain indexing services**:

- Experience with **containerization technologies**(Docker, Kubernetes, Helm)
- Familiarity with **Infrastructure as Code (IaC)**tools such as** Terraform**:

- Experience with **document databases**(e.g., MongoDB)
- Knowledge of **queueing and caching mechanisms**(e.g., Redis)
- Familiarity with** Azure managed services** (e.g., **Kubernetes Service, Cosmos DB, Key Vault, Service Bus, Entra**).

**What We Offer**
- The opportunity to work on** cutting-edge blockchain solutions** with a highly skilled team
- A **fast-paced, collaborative, and learning-focused**environment
- **Competitive compensation and benefits**:

- Career growth opportunities in a rapidly expanding team

**About Us**:
We show commitment to our investors and stand for solid, long-term growth performance. Founded in Germany in 1987 and in American territory since 2008, GFT expanded globally to over 10,000 experts. And to more than 15 markets to ensure proximity to clients. With new opportunities from Asia to Brazil, the international growth story continues. We are committed to grow tech talents worldwide. Because our team’s strong consulting and development skills across legacy and pioneering technologies, like GreenCoding, underpin success. We maintain a family atmosphere in an inclusive work environment.

**Why Choose GFT?**:

- Competitive Compensation
- Benefits package including comprehensive medical, dental, vision and others
- Company Culture based on our Core Values
- Professional Development Training with Individual Development Plans to map out your career growth
- Opportunity to work in a global environment with diverse teams built with colleagues from around the world
- Opportunity to work with technology industry leaders in the financial services industry
- Opportunity to work for big name clients in capital markets, banking and other industries