Senior Full Stack Engineer

1kx Network; New York (NY); Remote; USD 120,000 - 160,000; Full time

Job summary

A leading blockchain protocol development company is seeking a senior full stack engineer. In this role, you'll create core backend services and developer-facing APIs while focusing on delivering a high-quality developer experience. Ideal candidates possess extensive experience with frontend frameworks, backend technologies, and a passion for building exceptional developer tools and resources. Enjoy perks like unlimited PTO and comprehensive health coverage.

Benefits

Unlimited PTO with a high level of autonomy for your work

Best-in-class health, dental and vision insurance

Quarterly world-wide team offsites

Qualifications

• 5+ years of full stack engineering experience.
• Strong frontend skills with modern frameworks (e.g. React, Next.js).
• Professional experience with Go (Golang).
• Deep understanding of cloud infrastructure, particularly AWS.
• Experience building developer tools, SDKs, or APIs.

Responsibilities

• Contribute to the technical direction of our frontend architecture.
• Design and build UIs, SDK, and API infrastructure.
• Create comprehensive API documentation and developer resources.
• Build visualization tools for monitoring policy enforcement and network activity.
• Collaborate with protocol engineers to design developer-friendly abstractions.

Skills

Frontend skills

Full stack engineering

APIs

Developer tools

Cloud infrastructure

Job description

Unlock the next era of public blockchain networks

About us

We're building Predicate, a decentralized protocol that fundamentally transforms how smart contracts handle transaction prerequisites. Our protocol enables developers to compose modular rules (from AML checks to offchain collateral requirements) that are verified before transactions hit the chain, and enforced by a network of operators in a trust-minimized and verifiable fashion.

The protocol introduces a novel primitive: Predicate Functions, that compose into onchain policies. These policies, owned and governed by application developers or DAOs, define the prerequisites for transaction execution. Our operator network ensures that these rules are enforced with cryptographic guarantees, enabling sophisticated transaction validation without compromising on decentralization.

The role

As a senior full stack engineer, you’ll build core backend services, developer-facing APIs, and UIs that power Predicate’s developer platform. You’ll focus on delivering a high-quality developer experience, with direct ownership over feature design and implementation. This is a high-impact position where you'll shape how developers interact with and implement transaction prerequisites.

Responsibilities

• Contribute to the technical direction of our frontend architecture

• Design and build UIs, SDK, and API infrastructure

• Create comprehensive API documentation and developer resources

• Build visualization tools for monitoring policy enforcement and network activity

• Collaborate with protocol engineers to design developer-friendly abstractions

What we look for

• 5+ years of full stack engineering experience

• Strong frontend skills with modern frameworks (e.g. React, Next.js)

• Professional experience with Go (Golang)

• Deep understanding of cloud infrastructure, particularly AWS

• Experience building developer tools, SDKs, or APIs

• Strong product and UI intuition; passion for developer experience

• Autonomy, initiative, and a drive to ship high-quality systems

Perks

• Unlimited PTO with a high level of autonomy for your work

• Best-in-class health, dental and vision insurance

• Quarterly world-wide team offsites

Compensation

We are committed to hiring the best talent, and that is reflected in our salary, equity compensation, and culture.

Remote restrictions

• Must be a resident of United States