Senior Backend Engineer — Tokenized Assets, Cross‑Chain

Paxos Labs; New York (NY); Hybrid; USD 150,000 - 210,000; Full time

Job summary

Paxos Labs is seeking a senior backend engineer to own core services for Transit, our liquidity orchestration and distribution network for tokenized assets. You will design and implement pricing, routing, and settlement across chains, and own the exchange orderbook end-to-end.

You will work on systems where correctness has real financial impact, mentor teammates, and help integrate new chains, venues, and liquidity sources to reduce integration costs.

Qualifications

• 6+ years building and operating production backend systems.
• Track record of building systems from 0 to 1 and hardening them.
• Experience with systems where correctness is financial: exchange infrastructure, trading, settlement, or similar.

Responsibilities

• Research, design, and build the core services behind Transit's RFQ orchestration engine: pricing, quoting, routing, inventory management, and settlement across chains and venues.
• Research, design, and build the core services behind Transit’s exchange orderbook: the matching engine, pricing rules, order APIs, onchain settlement.
• Own systems end to end, from design through deployment, monitoring, and the on-call reality of moving real money.
• Build rate-aware pricing and inventory controls for assets whose price moves.
• Integrate new chains, venues, solver networks, and liquidity sources, and make the next integration cheaper than the last.
• Build the execution attribution and economics layer that makes integrator revenue share programmatic.
• Work directly with the onchain surface: the contracts, mint and redeem facilities, and compliance enforcement Transit routes through.
• Set technical direction on a small team where individual decisions carry a lot of weight, and raise the engineering bar through review and mentorship.

Skills

Backend systems

0 to 1 build

Financial systems

Job description

Paxos Labs is seeking a senior backend engineer to own core services for Transit, our liquidity orchestration and distribution network for tokenized assets. You will design and implement pricing, routing, and settlement across chains, and own the exchange orderbook end-to-end.

You will work on systems where correctness has real financial impact, mentor teammates, and help integrate new chains, venues, and liquidity sources to reduce integration costs.