Senior Blockchain Engineer

Our Client

Our client is building a new category-defining trading platform — a single app to discover, understand, and trade real-time trends. By fusing perpetual futures with real-time attention data from major social platforms, they are enabling users to measure and trade cultural mindshare at scale. It’s an ambitious and complex product, rethinking how attention can become an asset and how financial products can feel as intuitive and engaging as consumer apps.

About the Team

• A tight-knit team of six full-time employees, all based in New York City

• Fully in-person: engineers, designers, and product minds all work side-by-side

• Everyone contributes directly to shipping product, shaping vision, and learning from users

Core Values

• Invent, Don’t Optimize: The team is focused on first-principles thinking to build something entirely new — not just a better version of what already exists.

• Products That Teach People What They Want: The most powerful ideas often feel inevitable in hindsight. This team is betting on its ability to see around corners.

• No Passengers: Everyone is an owner. No layers, no handoffs. Fast execution, high trust, full commitment — all in one room

They’re seeking a Blockchain Engineer to join the Core Product team. This individual will play a central role in designing and building smart contract systems and backend infrastructure that unlock accessible, scalable markets for end users. The role combines deep protocol work with practical backend engineering, all within a fast-moving, feedback-driven environment.

Key Responsibilities

• Lead development of smart contracts for novel market mechanisms

• Design and implement backend systems that interact seamlessly with smart contract logic

• Collaborate with a cross-functional team of engineers, designers, and researchers

• Contribute to product decisions and system architecture

• Maintain performance, security, and scalability across all production systems

Must-Have Qualifications

• Proven experience building and deploying DeFi smart contracts related to perpetuals, options, or CLOBs on live protocols

• 4+ years of backend engineering experience with Rust, Java, or other modern server-side languages

• Strong understanding of security, reliability, and scalability in crypto systems

• Familiarity with high-performance database systems and internal optimization techniques

• Clear communication and collaboration skills across functions

• Startup mindset with strong ownership and initiative-taking ability

Nice-to-Haves

• Deep familiarity with Solidity best practices and on-chain architecture patterns

• System design expertise, including low-level architecture and performance optimization

• Knowledge of concurrent software systems (e.g. pipelining, optimistic concurrency)

• Hands-on experience with AWS and cloud-based infrastructure

• API development for production-grade financial applications

• Contributions to open-source crypto protocols

Tech Stack

• Design: Figma

• Frontend: React (TypeScript), TailwindCSS, Vite

• Backend: Rust, Java

• Research: Python, PyTorch

• Infrastructure: AWS, Cloudflare

• Smart Contracts: Solidity, Foundry, Slither

Interview Process

1. Intro & Behavioral Call – 45-minute chat with a founder

2. Technical Virtual Onsite – Includes a live coding session and system design interview

3. Reference Checks – 2–3 previous supervisors or collaborators

4. Compensation Review – Final conversation to go over the offer

Compensation

This role offers a competitive salary and significant equity upside, aligned with long-term company success. Equity is granted on a standard four-year vesting schedule, consistent with the rest of the core team.