Senior Smart Contract Developer

2 weeks ago

Onsite Singapore Talent@Web3 Full time $120,000 - $180,000 per year


Location: On-site, Singapore

About the Company

Were building a next-generation prediction-market protocol that redefines how people trade on outcomes. Users can buy outcome tokens, trade against self-bootstrapping liquidity, and rely on modular oracles all through a mobile-first, localized experience designed to onboard the next billion traders.

The Ideal Candidate

Were looking for a smart contract engineer who cares deeply about precision, security, and elegant design. Someone who optimizes away repetitive work, enjoys tearing apart complex mechanisms to rebuild them better, and has a healthy respect for the fact that on-chain code is immutableand users are trusting you with real money.

Role Responsibilities

As a Senior Smart Contract Developer, you will own the design, implementation, and evolution of the protocols on-chain systems. Your day-to-day will involve:

  • Designing and developing secure, gas-efficient smart contracts for core protocol components.

  • Building outcome-token mechanics, automated liquidity logic, oracle integrations, and settlement flows.

  • Conducting rigorous internal audits, fuzzing, property-based testing, and testnet simulations.

  • Working with backend and product teams to ensure seamless off-chain on-chain interactions.

  • Monitoring production contracts, identifying risks, and deploying improvements with minimal disruption.

  • Contributing to protocol architecture decisions, future roadmap planning, and economic mechanism design.

  • Writing documentation that makes the system understandable for auditors, integrators, and your future self.

Technical Requirements

  • 4+ years of software engineering experience, with 2+ years focused on Solidity or other EVM-based smart contract development.

  • Deep understanding of EVM internals, gas optimization, state management patterns, and security best practices.

  • Hands-on experience with Hardhat, Foundry, or similar testing and development frameworks.

  • Strong background in designing upgradeable systems, proxy patterns, or immutable architecture.

  • Familiarity with oracle frameworks, AMMs, prediction markets, or other complex on-chain mechanisms.

  • Proficiency in at least one backend language (TypeScript, Python, or Go) for integration and simulation work.

  • Strong grasp of economic incentives, adversarial thinking, and attack-surface reduction.

Nice to Have

  • Experience building or auditing smart contracts in trading, DeFi, or derivatives protocols.

  • Knowledge of L2 ecosystems, account abstraction, signature schemes, or cross-chain messaging.

  • Prior contributions to open-source protocol codebases.

  • Familiarity with formal verification, fuzzing frameworks, or invariant testing.

Soft Skills

We operate as a tight, flat team. You should be someone who:

  • Treats security, correctness, and clarity as non-negotiable.

  • Is comfortable challenging assumptions and defending technical decisions.

  • Communicates clearly with engineers, product managers, and non-technical stakeholders.

  • Stays resourceful when solving unfamiliar or novel problems.

  • Thinks several steps ahead and spots design risks early.

What We Offer

  • Ownership and autonomy over key protocol components.

  • A collaborative culture that values pragmatism, rigor, and innovation.

  • The opportunity to shape one of the most ambitious prediction-market protocols in the space.

  • Real influence on protocol design, roadmap direction, and long-term architecture.


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