Software Engineer

Den • Full-time • New York, NY • 13h ago

💻 Software Engineering | Fullstack

📅 Location: New York, NY

What is Den?

Den provides the most secure crypto wallet infrastructure for enterprises and institutions. The product is trusted by teams like Lido, Worldcoin, and over 800 others who have collectively transacted over $10B using Den. Transaction volume was just under $1B in 2024 and in 2025 that number exploded to $7.5B.

Our mission is to secure the world's largest organizations' crypto holdings. As global institutions continue to adopt cryptocurrency, Den will serve as the home base for more than $18T in deposits moving onchain. We're a well-funded team backed by some of the most successful organizations and individuals in crypto.

You can read more about our first $2.8M fundraise on CoinDesk, The Block, and Benzinga. We've raised additional funding since then that has not yet been announced to expand our team of fullstack software engineers.

The Role

As a Software Engineer at Den, you’ll develop full stack web applications that secure assets and transactions for large organizations and institutions. You will work closely with the co-founders of Den (both technical), build the foundation of an engineering team from both a technical and cultural standpoint, and lead technically as the organization scales.

We’re looking for a candidate that deeply internalizes and executes at the speed of light.

Our stack

Typescript
Next.js, React, React Native
Node.js, Express.js
Prisma, PostgreSQL, Viem
AWS, Elasticsearch

What we’re looking for

Must have:

Experience with or strong interest in crypto
Alignment with
Effective communication skills and high emotional intelligence
Ability to execute faster than most people think is possible
Entrepreneurial self-starter with project management skills
Experience with Javascript/Typescript

Nice to have:

UX experience
Ability to make architectural decisions and lead technically as we scale
Experience with React, React Native, SQL, and Viem
Experience reading and writing Solidity smart contracts, familiarity with security pitfalls

Benefits

Competitive Equity
Top quality Health and Dental insurance
$150 / month Health and Wellness stipend towards Gym, Mental Health, etc
Paid lunch
20 days PTO, flexible if needed

Team

Den’s founding team met in 2017. Ittai was writing smart contracts as a Solidity engineer and mining Ether, while Jonah was running decentralized storage nodes. Ittai has led cross-chain smart contract development projects, forked the Geth Ethereum client, and led several engineering teams. Jonah led backend infrastructure projects at Bubble, performed smart contract audits for top decile venture firms, and advised $200M in DeFi voting power. Both were core team for ConstitutionDAO working on engineering, marketing, and new crypto user education.

Click here to apply for the position

Apply