Senior API Engineer - DeFi Trading (Remote + Equity)

0x; Oregon; Hybrid; USD 150,000 - 230,000; Full time

Benefits offered by this job

Comprehensive insurance (medical/dent/

401k and FSA

Lunch reimbursement

Remote environment

12-week paid parental leave

SF office access

Flexible vacation

Job summary

0x is hiring a Senior Software Engineer to expand our API Products team. You’ll lead end-to-end projects, building new APIs and trading products while enhancing existing ones for multiple chains and bridges.

This hands-on role demands ownership and collaboration with product, legal, and GTM, with remote work and EU timezones preferred. Join a veteran crypto team focused on fast, scalable APIs and a culture of learning.

Qualifications

• 7+ years backend engineering experience.
• 2+ years DeFi in trading app/wallet/DEX context.

Responsibilities

• Build and ship new APIs and trading products.
• Maintain and extend existing APIs for chains and bridges.
• Ensure fast, reliable APIs; participate in on-call rotation.
• Investigate failed trades using logs and on-chain data.
• Work with product, legal and GTM on technical decisions.
• Write design documents and review teammates' designs.

Skills

Backend engineering

DeFi experience

Lead engineer

On-chain knowledge

System design

Communication

AI tooling

APIs

Tools

TypeScript

Rust

Job description

0x is hiring a Senior Software Engineer to expand our API Products team. You’ll lead end-to-end projects, building new APIs and trading products while enhancing existing ones for multiple chains and bridges.

This hands-on role demands ownership and collaboration with product, legal, and GTM, with remote work and EU timezones preferred. Join a veteran crypto team focused on fast, scalable APIs and a culture of learning.