Remote Solana Full-Stack Wallet Engineer

United States Digital Space LLC; United States; Remote; USD 150,000 - 230,000; Full time

Benefits offered by this job

Health Insurance (HMO)

Performance Incentives

Job Security and Stability

Paid Training

Inclusive Culture

Upskilling Opportunities

100% Work-From-Home

Supportive Team

Career Growth

Fun Work Environment

Holiday & Overtime Pay

Job summary

United States Digital Space LLC is seeking a high-level Full Stack Developer with deep Solana expertise to build and secure wallet and payment systems for a global audience. You will design APIs, integrate on/off ramp platforms, and implement on-chain identity features.

The role requires self-direction, senior-level architecture skills, and strong English communication. Remote work with a focus on scalable, secure crypto infrastructure and cross-chain integrations.

Qualifications

• 5+ years of professional software development experience with crypto wallets and payment systems.
• Solana development expertise required.
• Experience with blockchain nodes/servers (Bitcoin, Polygon) and on-chain identity stacks.
• Familiarity with Transak, MoonPay, ChangeNOW for on/off ramp functionality.
• Knowledge of brokerage APIs (Alpaca, Interactive Brokers) and DApp browser frameworks.
• Security, key management, and staking/lending protocol SDKs (e.g., Hyperliquid).
• Excellent English communication skills.
• Self-directed, senior-level architect capable of implementing solutions without step-by-step guidance.

Responsibilities

• Stabilize and extend wallet MVP.
• Fix TestFlight wallet issues.
• Verify Bitcoin/Polygon nodes/servers.
• Implement robust send/receive and account recovery flows.
• Design and implement handle payment rail.
• Build on-chain identity/handle registry and resolution service.
• Architect cross-app routing logic for peer-to-peer payments.
• Plan APIs, interfaces, and data models.
• Integrations and advanced features.
• Integrate Transak, MoonPay, ChangeNOW for buy/swap/sell functionality.
• Add DApp browser and staking/lending hooks (e.g., Hyperliquid).
• Explore brokerage APIs for asset transfer concepts.

Skills

Solana development

Blockchain nodes

Security & key management

English communication

Senior-level architect

Tools

Hyperliquid SDKs

DApp browser frameworks

Job description

United States Digital Space LLC is seeking a high-level Full Stack Developer with deep Solana expertise to build and secure wallet and payment systems for a global audience. You will design APIs, integrate on/off ramp platforms, and implement on-chain identity features.

The role requires self-direction, senior-level architecture skills, and strong English communication. Remote work with a focus on scalable, secure crypto infrastructure and cross-chain integrations.