Hardhat Jobs

Full time - Paris or remote from Western EU - mid: 75/90k, senior from €95k+ & equity

Responsibilities:

• Design, develop, and deploy smart contracts on EVM-compatible blockchains.

• Collaborate with front-end and back-end developers to integrate smart contracts with web and mobile applications.

• Write comprehensive and well-structured documentation for smart contracts and their functionalities.

• Conduct thorough testing and auditing of smart contracts to ensure security and efficiency, addressing and resolving vulnerabilities. Work hand-in-hand with security partners and renowned auditors from the space.

• Stay updated with the latest industry trends and technologies in blockchain and smart contract development.

• Provide technical guidance and mentorship to junior developers and team members.

• Participate in product governance and incident response processes with the rest of the team.

Stack: 

• Software: Go, python, Typescript…

• Smart-contract: Solidity + Foundry

• Infrastructure: Kubernetes

Requirements:

• Proficient in Solidity and understanding of the Ethereum Virtual Machine (EVM).

• 3+ years of experience with smart contract development tools such as Truffle, Hardhat, and Remix.

• Strong understanding of blockchain technology and decentralized architectures.

• Knowledge of smart contract security practices and common vulnerabilities.

• Excellent problem-solving skills and attention to detail.

• Strong communication and collaboration skills.

• Fluent (written and spoken) in both French and English.

Nice-to-have

• Previous experience working within a certified environment (SOC2, ISO 27001, PCI DSS, HIPAA...)

• Experience with Layer 2 scaling solutions such as Optimism, Arbitrum, Base, Zksync ...

• Previous work with decentralized finance (DeFi) projects.

• Contributions to open-source projects in the blockchain space.

• Knowledge around Ethereum Staking flows

About Kiln:

Kiln is the leading enterprise-grade staking platform, enabling institutional customers to stake assets, and to whitelabel staking functionality into their offering. Our platform is API-first and enables fully automated validators, rewards, and data and commission management.

With over $8+ billion in crypto assets being programmatically staked, Kiln has a particularly strong track record on Ethereum as we run over 4.2% of the network; this includes 40,000+ validators with 0 slashing events.

The team is made up of over 65 ecosystem enthusiasts formerly at Google, Circle, Ledger, Chainalysis, and other leading technology and cryptocurrency companies.

Join Kiln and help us make the web more secure, stable, decentralized, and fair!

How Kiln will support you:

• A fast-paced, no bureaucratic work environment

• Equity Share Options in the business: if Kiln succeeds, we all succeed!

• Competitive Salary

• Unlimited holiday

• Flexible remote working

• Choose your IT equipment

• Internet connection paid up to €50/month

• Significant personal development and tech conf budget

Your interview process: 

1. Recruiter Interview (45 min)

2. Take-home test (< 2 hours)

3. Technical Interview (60 min)

4. Core Values Interview (45 min)

5. Founders Interview (30 min)

6. Offer!

Please note that we are not sponsoring visas for persons without work authorization in the UK or the EU. This role is specifically for employees (no B2B or contractors) based in France, the UK, Italy, Spain, Portugal & Netherlands. Thank you!