CoFounder Chief Technology Officer CTO

YieldLoop; Cambridge (MA); On-site; USD 100,000 - 140,000; Full time

Benefits offered by this job

Founder equity

Shared decision-making authority

Governance participation

Job summary

YieldLoop, a fintech startup in Cambridge, is seeking a Co-Founder & CTO to develop its platform and lead the technical team. As a key player in the founding team, you will work closely with the Founder to create the MVP, define the company's vision, and attract funding.

Your responsibilities will include overseeing the technical architecture, managing development teams, and representing YieldLoop in investor meetings. Ideal candidates will have strong blockchain skills and entrepreneurial spirit, ready to commit to co-founder equity.

Qualifications

• Strong experience in blockchain or full‑stack software engineering (Solidity, Python, React, Node, etc.).
• Experience with DeFi, fintech infrastructure, or smart‑contract auditing preferred.
• Ability to work in a lean, early‑stage startup environment with high autonomy and shared responsibility.

Responsibilities

• Architect and lead development of the YieldLoop MVP and supporting systems.
• Select and manage technology stack.
• Collaborate directly with the Founder on company direction.

Skills

Strong experience in blockchain or full‑stack software engineering

Experience with DeFi, fintech infrastructure, or smart‑contract auditing

Ability to work in a lean, early‑stage startup environment

Visionary yet practical mindset

Entrepreneurial mindset for co-founder role

Job description

Overview

YieldLoop is a fintech startup developing a verified savings and automation platform that combines blockchain transparency with real-world financial trust. We’re seeking a Co-Founder & CTO to build the technical foundation of YieldLoop, lead the product team, and help shape the company’s direction from concept through launch and scale.

This is a founding role — you’ll work side‑by‑side with the Founder to build the company’s MVP, attract funding, and establish the long‑term technical vision of both YieldLoop and LOOP LAB, our education and innovation hub.

Core Responsibilities

Technical Leadership

• Architect and lead development of the YieldLoop MVP and supporting systems (smart contracts, dashboards, API integrations, etc.).
• Build the verified savings engine — a transparent, automated system that compounds only confirmed profits.
• Select and manage technology stack (Base / ETH network, smart contracts, front-end, databases, APIs).
• Oversee system architecture, scalability, uptime, and cybersecurity.
• Manage or recruit developers, auditors, and technical partners.
• Maintain clean, auditable, and secure code standards.

Strategic & Co‑Founding Responsibilities

• Collaborate directly with the Founder on company direction, milestones, and investor strategy.
• Represent the technical side in investor meetings, accelerator applications, and grant processes.
• Help define and refine business models, tokenomics, and technical IP for patent filings.
• Participate in governance, long‑term strategy, and hiring key staff as the company scales.
• Contribute to fundraising, pitch materials, and partnerships from a technical perspective.
• Serve as a public‑facing voice for YieldLoop’s innovation and technology roadmap.

LOOP LAB Integration

• Guide development of educational programs in fintech, automation, renewable energy, and full‑stack technology.
• Mentor interns, students, and local participants involved in LOOP LAB projects.
• Support collaboration between LOOP LAB and external industry or academic partners.

Qualifications

• Strong experience in blockchain or full‑stack software engineering (Solidity, Python, React, Node, etc.).
• Experience with DeFi, fintech infrastructure, or smart‑contract auditing preferred.
• Ability to work in a lean, early‑stage startup environment with high autonomy and shared responsibility.
• Visionary yet practical — capable of building and scaling production‑ready systems.
• Entrepreneurial mindset and readiness to commit to a co‑founder role with equity ownership.

Compensation

• Initial compensation via founder equity, transitioning to salary post‑funding.
• Includes shared decision‑making authority and governance participation.