

Senior Backend Engineer – Crypto Social Trading App
$ 180,000 - $ 220,000
Senior Backend Engineer – Trading Platform (NYC, In-Person)
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.
The Role: Senior Backend Engineer
The team is looking for an experienced backend generalist to help design and build the infrastructure behind a fast, expressive trading experience. The ideal candidate thrives in a fast-moving, hands-on environment, and enjoys tackling tough problems around system design, performance, and scalability.
Responsibilities
Develop and maintain secure, scalable backend services in a high-performance environment
Design and build APIs and distributed systems to handle large volumes of real-time data
Collaborate with a cross-functional team to shape features end-to-end
Identify and mitigate technical risks early in the development cycle
Must-Have Qualifications
4+ years of backend engineering experience using Python, Java, or a modern backend language
Strong grasp of software security, testing, and long-term maintainability in production systems
Proven experience shipping backend systems at scale
Extensive familiarity with AWS and modern cloud infrastructure
Clear communication and ownership mindset
Nice-to-Haves
Experience with high-frequency trading (HFT), MEV, or similar low-latency systems
Contributions to open-source projects
Familiarity with Rust, or interest in learning it
Tech Stack
Backend: Rust, Java
Research & Prototyping: Python, PyTorch
Infrastructure: AWS, Cloudflare
Smart Contracts: Solidity, Foundry
Interview Process
Intro Call (45 mins) — Behavioral conversation with a founder
Technical Virtual Onsite — Includes live coding and system design
Reference Checks — 2–3 past collaborators or supervisors
Compensation Chat — Review of offer terms with a founder
Compensation
The role offers competitive base salary along with meaningful equity aligned with long-term company upside. Equity is offered on a standard four-year vesting schedule, in line with the rest of the founding team.
Blockchain Headhunter
Blockchain Headhunter is a global recruitment and executive search firm dedicated to connecting blockchain, crypto, and DeFi companies with top talent. They specialize in filling leadership, technical, and business roles across the blockchain industry, from startups to established enterprises. Their mission is to help innovative organizations scale by providing access...