Back-End Founding Engineer (Equity-Only)

About WeLeap
WeLeap is a mission-driven fintech startup reimagining how Gen Z and Millennials manage money. We're building an AI-powered financial sidekick that acts in the user's best interest — helping them allocate income, reduce debt, and discover smarter financial products through a personalized, action-first experience.
We’re part of the SkyDeck Pad13 incubator and are assembling a small team of builders who want to reshape the financial system from the ground up. If you’re passionate about empowering people with tools that actually work (not just track), and want to build the future of financial well-being, come join us.

What You’ll Do
Help architect and build our AI-native financial engine and marketplace infrastructure
Work closely with founders on product development and technical strategy
Lead development on core components including LLM integrations, Firebase backend, financial automation, and secure execution environments
Establish foundational engineering practices and culture for the early team
Ship fast, test intelligently, and iterate based on real usage

Who You Are
An entrepreneurial self-starter, comfortable diving into technical problems even when they’re outside your comfort zone
A full-stack engineer with experience building real products from scratch
Proficient with TypeScript, Firebase, Node.js, and AI APIs like OpenAI and Gemini, with hands-on experience building AI-powered products or working with large language models (LLMs)
Experienced in setting up and managing production environments, deployment pipelines, and devops workflows
Passionate about creating meaningful tools in fintech and AI
Comfortable working independently, collaboratively, and with high ambiguity; you thrive in a fast-paced, iterative environment aligned with lean startup principles and are always eager to learn
Excited by the opportunity to earn meaningful equity and help shape a company from day one
Bonus: experience with financial data (Plaid, Stripe, etc.), investment automation, or decentralized tech

Why Join Now
Build something ambitious with a lean and driven team
Define the architecture, tools, and culture from the beginning
Flexible structure with long-term ownership and impact
Work remotely, on your own time, and with a high degree of autonomy
This is a unique opportunity structured for entrepreneurial engineers ready to dive into an early-stage venture. If you’re looking for something high-impact and are energized by the zero-to-one phase, we’d love to hear from you.