Blockchain/AI Engineer

As a Blockchain/AI Engineer at Nio Digital, you join our engineering hub in Coimbatore to design, build, and ship production systems that combine blockchain infrastructure with intelligent automation. You will work across smart contract development and applied AI/ML, spanning a broad scope with room to grow.

What you'll do

• Design, develop, test, and deploy smart contracts on EVM-compatible chains.
• Build and integrate AI/ML services-from data pipelines through model training to deployment-that work alongside on-chain components.
• Develop backend services and APIs that bridge smart contracts, AI models, and end-user applications.
• Write robust unit and integration tests, and contribute to code reviews and engineering documentation.
• Investigate and apply emerging tools and techniques across the blockchain and AI ecosystems.
• Collaborate with product, design, and senior engineers to translate requirements into working systems.
• Help maintain security best practices across both smart contracts and AI components.

What you bring

• 2-5 years of professional software engineering experience.
• Hands-on experience writing and deploying Solidity smart contracts using Hardhat, Foundry, or Truffle.
• Strong proficiency in at least one general-purpose language: Python, JavaScript/TypeScript, or Go.
• Practical experience building or integrating ML or AI components in production. Familiarity with PyTorch, TensorFlow, scikit-learn, or modern LLM tooling.
• Solid backend fundamentals: REST APIs, relational databases, version control (Git), and standard CI/CD workflows.
• A good understanding of how blockchains, wallets, transactions, and common token standards (ERC-20, ERC-721) work.
• Awareness of common smart contract security pitfalls and mitigations.
• Strong problem-solving skills and clear written and verbal communication in English.

Nice to have

• Experience with Web3 libraries such as ethers.js, viem, or web3.py.
• Exposure to L2 networks (Polygon, Arbitrum, Optimism, Base) or non-EVM chains.
• Familiarity with oracles (Chainlink, Pyth), IPFS, or off-chain compute frameworks.
• Experience with LLM application development-prompt engineering, RAG, vector databases, agent frameworks.
• Exposure to MLOps tooling (MLflow, Weights & Biases, SageMaker, Vertex AI).
• Cloud experience with AWS, GCP, or Azure.
• Open-source contributions, hackathon entries, or personal projects in blockchain or AI.
• Interest in real-world asset (RWA) tokenisation, DeFi, or regulated blockchain applications.

What we offer

• A full-time position with an attractive salary package.
• 12 days of training per year, including 6 days of your choice.
• Sports activities with colleagues, covered by the company.
• Fruit, coffee, and snacks provided.
• Regular team activities including weekly sports sessions, team building events, and monthly social gatherings.

About Nio Digital

Nio drives digital transformation for enterprises globally using AI, Odoo, and Nio Insight, its core financial and compliance software. The company has a market footprint spanning the US, UK, Panama, and the Caribbean, with an engineering hub in Coimbatore.