About Subzero LabsSubzero Labs is building the next generation of decentralized infrastructure.
Position Overview
We are seeking an exceptional Software Engineer: Full Stack to design and build critical applications for our Gen3 blockchain platform. You'll lead the design and implementation of user-facing experiences across wallets, explorers, DeFi applications, and other decentralized protocols while defining the frontend and SDK architecture of our decentralized programmable network. This role offers significant growth opportunities, from owning web-based platforms to potentially leading strategic initiatives that accelerate ecosystem growth.
What You'll DoFrontend Architecture & User Experience
- Wallet Architecture & Secure Signing UX: Architect reusable wallet flows that support seamless user experiences across multiple touchpoints
- Explorer & Real-Time Interfaces: Build high-performance data visualizations for blocks, transactions, and validators; architect polling, websocket, and cache strategies for real-time UIs
- Complex DeFi UX Flows: Lead development of multi-step interactions including staking, liquidity provision, and cross-chain bridging with composable, testable flows that handle partial failures gracefully
Development & Technical Leadership
- Programmability & SDK Design: Design and maintain developer-facing SDKs for on-chain interactions, ensuring APIs are consistent, type-safe, and well-documented across JS/TS ecosystems
- Component Systems & Code Quality: Establish shared component libraries, testing infrastructure, and CI workflows while championing TypeScript, Storybook coverage, and automated testing
- Security-Aware Development: Enforce frontend security best practices, preventing phishing vectors, injection attacks, unsafe DOM manipulations, and signature spoofing
Platform Ownership & Strategy
- Ship new web initiatives and products, including web-related modules and SDKs (e.g., WalletConnect adapters)
- Own and enhance the speed, performance, and reliability of existing web properties
- Review architecture and ensure best practices with external contributors
- Create documentation and materials to address knowledge gaps and accelerate ecosystem understanding
Collaboration & Community
- Cross-Functional Partnership: Work closely with designers, product managers, engineers, and external builders to launch mission-critical interfaces and libraries
- Facilitate communication between the ecosystem and contributors to web tools
- Engage with open source software communities and contribute to technical advocacy
- Participate in product discussions, roadmap planning, and developer onboarding
Required Qualifications• Strong proficiency in JavaScript, React, TypeScript, and Node.js
- Experience with module packaging and distribution
- Familiarity with advanced data structures, APIs, storage solutions, and cloud infrastructure
- Understanding of blockchain architecture and design principles
- Knowledge of security best practices in web development
Professional Experience• Proven track record of crafting exceptional software with focus on performance and maintainable code
- Experience with diverse technical expertise and software development processes
- Background in contributing to and engaging with open source communities
- Demonstrated ability to work in cross-functional, collaborative environments