Smart Contract Developer (Prediction Markets and DeFi)

NODEWORTHY PTE. LTD.; Singapore; On-site; SGD 80,000 - 120,000; Full time

Job summary

A pioneering financial technology company in Singapore is seeking a Smart Contract Developer to design and maintain on-chain systems. The ideal candidate will have over 2 years of experience in Solidity, a strong grasp of smart contract security, and a collaborative mindset. Responsibilities include implementing contracts and building on-chain analytics. Join a team pushing the boundaries of DeFi design and contribute to meaningful technological evolution.

Qualifications

• 2+ years of experience developing and deploying smart contracts in Solidity.
• Proven track record of writing production-grade, security-first code.
• Solid knowledge of smart contract vulnerabilities and exploit prevention.

Responsibilities

• Collaborate with teams to turn ideas into production-ready smart contract architecture.
• Implement and test Solidity-based contracts with security and developer experience in mind.
• Build and maintain on-chain analytics using tools such as Dune Analytics.

Skills

Solidity development

Smart contract security

Financial primitives knowledge

EVM familiarity

Collaborative mindset

Tools

Foundry

Hardhat

Dune Analytics

Job description

Location: On-Site (Singapore)

Reporting To: Lead Engineer / CTO

About The Company:

Our client is building a next-generation prediction‑market protocol designed to onboard the next billion traders. Users can buy outcome tokens, trade with PM‑native leverage, and experience self‑bootstrapping liquidity that is all powered by a modular oracle stack and delivered through a localised, mobile‑first interface. The goal is to reinvent prediction markets as a core primitive of the future financial internet, combining deep crypto‑native mechanics with world‑class UX.

Position Overview:

Our client is seeking a Smart Contract Developer to design, build, test, and maintain on‑chain systems powering the 42 protocol. You will work closely with product and engineering teams to architect key mechanisms, optimise smart contract security, and contribute to the core protocol's evolution.

This is a hands‑on role for someone who thrives on solving complex challenges, enjoys pushing the boundaries of DeFi design, and wants to ship code that supports real usage and liquidity at scale.

Key Responsibilities

• Collaborate with product and engineering teams to turn ideas into production‑ready smart contract architecture.
• Implement and test Solidity‑based contracts with security and developer experience in mind.
• Contribute to protocol design, mechanism research, and architectural decisions.
• Write and maintain clear technical documentation and diagrams for both internal and public use.
• Explore and propose improvements to existing mechanisms through research and code iteration.
• Build and maintain on‑chain analytics using tools such as Dune Analytics.
• Support the development of additional extensions like data processing, indexing systems, and more.

Job Requirements

• 2+ years of experience developing and deploying smart contracts in Solidity.
• Proven track record of writing production‑grade, security‑first code (experience with mechanisms handling significant TVL is a strong plus).
• Solid knowledge of smart contract vulnerabilities and exploit prevention.
• Strong understanding of financial primitives and DeFi protocols.
• Proficiency with Foundry or Hardhat, including fuzzing, invariant testing, and gas analysis.
• Familiarity with the EVM and smart contract tooling ecosystem.
• Passion for writing elegant, efficient, high‑quality code.
• Excellent written and verbal communication skills.
• Highly collaborative mindset.

The following would be nice to have

• Experience designing novel mechanisms from scratch.
• Knowledge of bonding curves or market‑making systems that are highly relevant to prediction markets.
• Background in formal verification or symbolic execution.
• Experience with contract monitoring, alerting, or analytics tooling.
• Participation in audits, bug bounties, or smart contract competitions.
• Published research or technical writing in crypto / DeFi.

Grab the chance and don't lose it. Apply now!

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