Smart Contract Engineer (Solidity & DAML)

Role Overview:

• We are seeking a highly experienced Smart Contract Engineer with deep expertise in Solidity and DAML, and a strong track record of delivering production-grade solutions across both public and private blockchain networks. 

• The successful candidate will play a key role in designing, developing, securing, and optimizing smart contracts for mission‑critical enterprise and institutional use cases.

• This role requires hands-on technical depth, architectural thinking, and the ability to work closely with product, legal, risk, and platform teams in regulated and unregulated environments.

Key Responsibilities

Smart Contract Development & Architecture

• Design, develop, test, and deploy secure, scalable smart contracts using Solidity (EVM-based chains) and DAML (private / permissioned ledgers)

• Architect complex on-chain and off-chain interactions, including contract upgrade strategies and lifecycle management

• Define and implement reusable smart contract patterns and frameworks

Public & Private Blockchain Implementation

• Build and maintain smart contracts for public blockchains (e.g. Ethereum, Polygon, other EVM-compatible chains)

• Deliver enterprise-grade solutions on private / permissioned DLT platforms using DAML

• Implement privacy-preserving workflows, participant modeling, and authorization schemes in private networks

Security & Quality

• Apply secure coding practices and perform internal smart contract security reviews

• Work closely with auditors on formal audits, vulnerability remediation, and compliance requirements

• Implement automated testing (unit, integration, property-based testing) and CI/CD pipelines for smart contracts

Platform & Integration

• Integrate smart contracts with backend systems, APIs, oracles, and wallets

• Optimize contracts for performance, gas efficiency, and scalability

• Support deployment and monitoring across multiple environments

Leadership & Collaboration

• Provide technical leadership and mentorship to junior engineers

• Collaborate with product, architecture, legal, and compliance teams to translate business logic into smart contracts

• Contribute to architectural decisions, technical standards, and best practices

Required Skills & Experience

Core Technical Skills

• Strong expertise in Solidity, including advanced EVM concepts (storage, gas optimization, proxies, upgradability)

• Hands-on experience with DAML, including templates, choices, workflows, and ledger integrations

• Experience working with both public and private blockchain networks

• Deep understanding of smart contract security

Blockchain & DLT Knowledge

• Practical experience with EVM-based ecosystems (Ethereum or equivalents)

• Strong understanding of permissioned DLT concepts: privacy, participant models, identity, and governance

• Familiarity with on-chain/off-chain architectures and integration patterns

Engineering & Tooling

• Proficiency with testing and development tools (e.g. Hardhat, Truffle, Foundry or DAML tooling)

• Experience with CI/CD pipelines for blockchain deployments

• Solid grounding in distributed systems, cryptography fundamentals, and secure software design

Experience

• 10–12 years of total software engineering experience

• 7+ years working with blockchain / smart contracts

• Proven delivery of production, enterprise-scale solutions in complex environments

Nice to Have

• Experience in regulated environments (financial services, capital markets, digital assets, payments)

• Exposure to token standards, digital assets

• Prior experience working with cross-functional stakeholders (legal, compliance, risk)

• Contributions to open-source blockchain or DLT project