Senior Software Engineer - Backend

Arcus • New York, NY

5d

About The Position

Arcus is building an onchain global financial marketplace, bringing crypto, stock tokens, commodities, and perpetual futures into one self-custodied account. The Senior Software Engineer - Backend will help build the exchange’s core trading and market infrastructure, with a focus on performance, correctness, reliability, and scalability. The role contributes to foundational technical decisions as Arcus expands its asset classes and trading capacity.

Requirements

• At least 5 years of experience working as a full-time developer.
• Write secure, efficient, high-quality code and have a very strong understanding of computer science fundamentals.
• Experience building or integrating with trading systems.
• Deep understanding of distributed systems and software architectures, excellent coding skills, and strong debugging capabilities.
• Ability to learn quickly, master new technologies, and work through ambiguity.

Nice To Haves

• Experience in decentralized finance.

Responsibilities

• Contribute to the core trading engine, optimizing throughput, latency, and correctness under high concurrency across many trading pairs.
• Build real-time market infrastructure and pipelines that process, aggregate, and distribute order book updates, trades, and market events to traders.
• Design systems for 24/7 uptime, seamless upgrades, horizontal scalability, and zero-downtime deployments.
• Make foundational technical decisions about how the platform evolves as asset classes and throughput increase.

Benefits

• Unlimited flexible paid time off and 11+ paid company holidays.
• Company-paid medical, dental, and vision coverage.
• 401(k) with company match.
• Paid parental leave.
• $300 per month wellness stipend.
• $125 per month commuter benefit.
• $200 per month phone and internet stipend.
• $1,700 in-office setup allowance and up to $1,000 for a home office.
• Free lunch at the office and dinner after 6 p.m.
• Two team offsites per year.
• Team bonding events, including restaurants, comedy shows, and escape rooms.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed