Senior Web3 Frontend Engineer — On-Chain Trading UI

Jobgether SRL; South Africa; Remote; ZAR 600,000 - 1,200,000; Full time

Benefits offered by this job

Fully remote environment

Significant autonomy and ownership

Stock option program

Unlimited PTO

Premium health insurance

Volunteering days

Job summary

Lever, Inc. is seeking a senior Trenches / Web3 Frontend Developer in a remote-first setup based in South Africa. You will own critical trading surfaces on Solana and EVM, delivering fast, low-latency experiences for real transactions and money.

You will drive end-to-end ownership from concept to production, focusing on latency-sensitive UX, live data, and robust wallet interactions across platforms. Collaboration with cross-functional teams and an AI-native workflow is encouraged.

Qualifications

• 3+ years of frontend engineering experience with production Web3/onchain products.
• Experience shipping products with real users and real money (perpetuals, DEXs, trading terminals).
• Hands-on production experience with both Solana and EVM ecosystems.
• Familiarity with onchain trading mechanics: fills, slippage, execution quality, transactions.
• Strong frontend skills for real-time apps (WebSockets, RPC streams, optimistic UI, reconnection, backpressure).
• Experience building trading interfaces with charting, order flow, PnL, and onchain state handling.
• Experience with Solana wallet adapters and embedded wallets like Privy.

Responsibilities

• Own the frontend client experience for trenches trading, perpetuals, and prediction markets across Solana and EVM.
• Take end-to-end ownership of at least one revenue-generating product surface from ideation to production deployment.
• Build and improve latency-sensitive trading experiences with live data, execution, and UX for fills.
• Bring the trenches terminal to parity or beyond with leading onchain trading products focusing on execution and fills.
• Unify Solana and EVM wallet, signing, approval, and transaction experiences with feature parity across platforms.
• Optimize browser/frontend performance using WebSockets, RPC streams, optimistic UI, and backpressure management.
• Own measurable frontend performance outcomes (e.g., p95 TTI and time-to-fill).
• Design and maintain trading interfaces for charting, PnL, fills, and onchain failure handling.
• Maintain production quality and reduce defect rates in surfaces delivered.
• Apply strong product judgment to decide what to build in latency-critical areas.
• Collaborate with frontend, UX, backend, and DevOps in a compact cross-functional team.
• Leverage AI-native development practices while ensuring robust code review and QA.

Skills

Frontend engineering

Web3 / onchain

Solana & EVM

Real-time / latency

Trading interfaces

Wallet adapters

Performance debugging

Product ownership

Cross-platform parity

AI-assisted development

Tools

Privy

Solana wallet adapters

WebSockets tooling

Job description

Lever, Inc. is seeking a senior Trenches / Web3 Frontend Developer in a remote-first setup based in South Africa. You will own critical trading surfaces on Solana and EVM, delivering fast, low-latency experiences for real transactions and money.

You will drive end-to-end ownership from concept to production, focusing on latency-sensitive UX, live data, and robust wallet interactions across platforms. Collaboration with cross-functional teams and an AI-native workflow is encouraged.