Location: Remote (US Timezone)

Type: Full-time

Compensation: Competitive salary + meaningful equity + crypto-native flexibility

Stack: Rust, EVM, zk components, OP Stack.

About Spire Labs

At Spire Labs, we’re building the future of rollup infrastructure with a bold vision: synchronous cross chain composability.

Today, rollups are siloed. Developers are forced to choose between scalability and interoperability. We think that’s a false choice.

Spire is creating a modular rollup framework that allows chains to remain sovereign while achieving cross chain synchronous composability—no trusted bridges, no brittle async calls.

We’re pioneering a new architecture where:

• App-specific L3s can interoperate as smoothly as contracts on Ethereum.
• Shared sequencing, preconfirmations, and unified execution environments unlock atomic, cross-chain interactions.
• Developers no longer need to choose between performance and composability.

“Imagine every rollup could synchronously compose with every other. No bridges, no delay, no fragmentation. Just fast, seamless cross-chain UX. That’s the future we’re building.” 🧵

We’re early-stage, ambitious, and backed by some of the best minds in Ethereum. Come help us build the L3 Based Appchain Stack—an open, composable future for rollups.

What You’ll Be Doing

• Architect and implement key components of the Based Appchain Stack in Rust
• Design low-level systems and interfaces for VMs, preconfirmations, and cross-rollup communication