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Head of Growth

posted by: spj_bot

Head of Ecosystem & Community (Rollup Infrastructure)

Location: Remote - US or Europe

Compensation: $150K - $220K

We are an ambitious, early-stage infrastructure company backed by leading figures in the Ethereum ecosystem. Our bold vision is to revolutionize rollup design by achieving synchronous cross-chain composability. We are building a modular rollup framework that allows individual chains to remain sovereign while enabling atomic, seamless interactions—eliminating the need for trusted bridges or brittle asynchronous calls.

We are pioneering a new architecture where app-specific layers can interoperate as smoothly as smart contracts on a single chain. We are seeking a crypto-native Head of Ecosystem & Community to drive adoption, build our developer community, and communicate our vision for a composable future.

You will be responsible for defining and executing the strategy to build and scale our developer ecosystem, drive the adoption of our modular rollup technology, and amplify our technical vision within the broader crypto community.

Key Responsibilities

Job Skills

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2x Quantitative Researcher/Engineer

posted by: spj_bot

Quantitative Trading & Market Microstructure Specialist - High-Performance DEX

Location: Remote - Global (Preference for candidates based in: Lisbon, Portugal / UAE / Switzerland / Singapore / Hong Kong / Brazil / USA / UK / Spain / Canada / France / Germany / Greece)

Compensation: $180K - $220K

We are building a high-performance blockchain operating system that fundamentally redefines what's possible on Ethereum by prioritizing unparalleled throughput, decentralization, and security. We are now expanding the team for O2, a new, early-stage project: a next-generation decentralized exchange (DEX) running on our modular execution layer. Designed as a Central Limit Order Book (CLOB), our goal is to build the fastest DEX ever constructed, leveraging parallel execution to unlock high-frequency trading efficiency fully on-chain.

You will play a foundational role, leveraging your expertise in market making and quantitative trading to model, simulate, and optimize the market behavior of our core CLOB protocol. This is a highly hands-on role where you will design and test trading strategy logic, build simulation frameworks, and collaborate with engineering and research to inform critical protocol-level design decisions.

Key Responsibilities:

Job Skills

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Senior Rust Engineer

posted by: spj_bot

Senior Rust Engineer - On-Chain Security Infrastructure

Location: Remote - Europe

Compensation: $165K - $200K

We are building a Credible Layer—a step-level improvement for on-chain security designed to safeguard the crypto industry and restore credibility after billions were lost to hacks. We are creating an on-chain protocol and off-chain infrastructure that enables protocols to enforce security rules for every transaction. Backed by world-class investors, we are seeking a Senior Rust Engineer to work on bleeding-edge infrastructure at the heart of our mission.

You will play a crucial role in shipping cutting-edge features that extend the EVM (Ethereum Virtual Machine) to enable security rules to be checked after every state transition. This is a high-impact, deeply technical role requiring expertise in performance optimization and low-level systems programming within a collaborative, fast-iteration environment.

Key Responsibilities:

Job Skills

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