Job Title

Senior Software Engineer (Python and Solidity)

Job Description

What You’ll Be Doing

• Develop Python services and APIs that tie blockchain infrastructure to the “real world.”
• Build and ship smart contracts in Solidity that power mortgage tokenization.
• Obsess over security, reliability, and scalability.
• Help shape our architecture and technical roadmap.
• Collaborate directly with product, compliance, and ops — we’re small, so everyone has a big voice.
• Mentor teammates and bring best practices to everything we ship.

A Day in the Life

You’ll be wearing multiple hats — one minute you’re developing a Solidity contract to manage payments, the next you’re debugging a Python API that feeds data into the blockchain, then pairing with product to brainstorm a new feature, and finally debugging celery tasks to make them faster. You’ll own features end-to-end, from design to deployment, and jump into whatever part of the stack needs your expertise. Every day is hands-on; every day you make a visible impact.

Our Stack

• Backend: Python (Django, Django Rest Framework), Celery, RabbitMQ, PostgreSQL
• Smart contracts: Solidity, OpenZeppelin, Hardhat/Foundry
• Infrastructure: AWS, Docker
• Blockchain: EVM-compatible chains
• Integrations: Web3.py, analytics

Restrictions

• No telecommuting
• No Agencies Please

Requirements

• 10+ years building products, with serious chops in Solidity and Python.
• Experience developing smart contracts (EVM-compatible).
• Expert with Python tools and frameworks (Django, DRF, Celery).
• Strong experience working with distributed systems involving multiple connected components and asynchronous programming.
• Strong grasp of blockchain fundamentals, DeFi, and token standards (ERC-20, ERC-721, ERC-1155).
• Bonus: exposure to financial services, mortgages, or asset-backed tokens.

About the Company

We’re a fintech startup on a mission to reimagine the life of a mortgage through blockchain. By tokenizing real estate debt, we’re building a platform that makes the investing in mortgages more transparent, accessible, and liquid. Think: the speed of DeFi meets the trust of traditional finance. We’re moving fast, backed by strong partners and profitable. We’re looking for a Senior Engineer to join us and help scale.

Contact Info

• Contact: Hank Birkdale
• E-mail contact: talent@liquidfi.io
• Web: https://www.liquidfi.io