Founding Fullstack Engineer (Mobile)

Spatial Labs was founded in 2019. Throughout the years, we've launched products at the intersection of NFC (Near Field Communication), Web3, and Digital Passport Technology. We've taken all what we've learned over the years to develop our newest software, Circle.Pay: 90k-120k (.5-1% equity)What is Circle?Circle is your identity, unified. The home for sharing and discovery.

Just as Google is where you search, Circle is where you discover Creators and brands — everything about them, all in one place. We’re building the future of digital identity. A seamless, all-in-one solution for creators and brands to own their digital identity, connect with their audience, build community, and monetize seamlessly—all in one place.

Today, managing your digital brand is fragmented—multiple platforms, disconnected tools, difficult maintenance, and limited control. Circle changes that.Why Circle?

Circle is a single unified link for digital identity - built on progressive web app(PWA) Infra – anew kind of social network for identity.

Circle is more than a shareable link—it’s a discovery platform. Unlike traditional link aggregator platforms, Circle doesn’t just direct traffic elsewhere; it empowers organic discovery, direct content sharing, community building, and visitor engagement within the Circle ecosystem itself - without the need for external re-direct. This makes Creators and Brand identity easily searchable, shareable, and instantly accessible.

Circle falls in a category of services we call Handoff as a Service (HaaS), we want to enable:

• Frictionless transactions – direct payments like Apple Pay, donations, payments, and seamless audience handoff.

• Seamless Discovery – enable people to start a Search on Circle and uncover everything about a Creator or brand. Simple and well organized.

• Extend beyond the digital —and into the physical world – Circle extends beyond digital, integrating with billboards, product packaging, and physical objects via QR & NFC. Great for extending touchpoints beyond the digital screen.

• A unified digital presence – everything about a creator or brand in one place, instantly accessible.

• True ownership – no intermediaries, no app store dependencies and compliances and , full control over your brand or persona.

• Create, Design, Publish - made simple - we want to provide a super easy drag-and-drop way for Creators or brands to build on their Circles without any Hassle.

• Built-in discovery – Circle is not just a tool, but a destination where people organically find and engage with creators and brands.

• The end of fragmented identity – links, payments, content, and community tools, all accessible from one space.

What you will be working on.

• Architect and scale Circle’s core web + mobile experience.

• Define our engineering culture – you’ll be a key decision-maker on technical strategy.

• Go beyond traditional link-in-bio tools – build native content hosting, interactive engagement tools, dynamic and responsive layouts, AI designer functions, in-app communication abilities, and frictionless transactions.

• Build for scale – design a backend capable of handling millions of users.

• Own frontend (Next.js, TypeScript) & backend (AWS, MongoDB) – ensure performance, reliability, and growth.

• Extend Circle into the physical world – leverage QR, NFC, and Handoff as a Service (HaaS) to make digital identity seamless everywhere.

• Work closely with design to build pixel-perfect, responsive layouts for mobile and web.

• Move fast and iterate – speed, experimentation, and learning are part of our DNA.

Who you are.

✅ You’ve built and scaled web or mobile products from scratch (0 → 1).

✅ You’ve worked at an early-stage startup and thrive in fast-paced environments.

✅ You’ve built backend architectures that handle millions of users.

✅ You can make technical trade-offs & move fast without sacrificing high quality.

✅ You thrive in autonomy – we don’t micromanage; you own your work.

✅ Pro-active and not just reactive – thrive in finding solutions and ways to improve our codebase and ecosystem .

✅ You communicate clearly & handle feedback well – honest, direct, and collaborative.

✅ You’re entrepreneurial – you don’t just want a job; you want to build something impactful.Tech stack we use.

• Frontend: TypeScript, Next.js, Tailwind CSS

• Backend: AWS, MongoDB, Google Firebase (experience scaling infrastructure to millions of users is a plus!)

• Tooling & Infra: Vercel, ESLint, Prettier, monorepo setup

Why you?

This is a rare opportunity to be part of an early team building a category-defining product. You’ll have ownership, equity, and the chance to shape the future of digital identity and Handoff as a Service (HaaS). We are confident that what we are building will shape the future of online identity and can't wait to learn more about you.

If you’re ready to build something foundational, impactful, and lasting—let’s talk. 🚀