Senior Software Engineer (DeFi)

MON Co.; Singapore; On-site; SGD 90,000 - 120,000; Full time

Job summary

A leading blockchain company in Singapore seeks a Senior Software Engineer to design and optimize decentralized finance systems. The ideal candidate has over 4 years of experience in software engineering with a strong focus on DeFi, smart contract development, and cross-chain integration. Join a diverse team that values innovation and collaboration in the evolving landscape of Web3.

Benefits

Supportive and innovative team

Focus on cutting-edge technology

Flat organizational structure

Qualifications

• 4+ years of software engineering experience focused on DeFi, blockchain, or smart contracts.
• Deep understanding of DeFi mechanisms including liquidity pools, AMMs, and yield farming.
• Knowledge of security best practices for smart contract development.

Responsibilities

• Design and scale automated DeFi yield systems.
• Establish robust risk and performance frameworks.
• Operationalise monitoring and compliance tools.

Skills

Software engineering

DeFi knowledge

Solidity

TypeScript

JavaScript

Cross-chain bridging

Gas optimization

On-chain analytics

Tools

Hardhat

Foundry

viem/ethers.js

Job description

About Us

MON Co. is a development studio and publisher at the intersection of gaming, entertainment, and blockchain technology. Originally operating as LiquidX, MON Co. is the force behind Pixelmon, its flagship IP franchise, and MON Protocol, a cutting‑edge Web3 platform. The company is led by a team of seasoned executives from top gaming and entertainment studios. MON Co. aims to deliver high‑quality, engaging experiences across a variety of entertainment platforms, including games, digital content, and transmedia storytelling, as it bridges the gap between Web2 and Web3.

MON Co.'s ecosystem includes MON Protocol, which drives Web3 partnerships and tokenized gaming economies, and MON Ventures, which invests in emerging IPs. With a growing community of over 1 million Pixelmon fans, a robust partner network of over 80 blockchain‑native games, and a rapidly expanding portfolio, MON Co. is dedicated to shaping the future of entertainment for a global audience.

For more information on MON Co., please visit https://www.mon.co

About the Role

As a Senior Software Engineer at MON Protocol, you will design, build, and optimize the systems that power our decentralized finance infrastructure. You’ll work on creating automated yield strategies, risk frameworks, and cross‑chain integrations that serve as the foundation of our Web3 ecosystem. This role is ideal for someone who is deeply DeFi‑native and understands the nuances of yield, risk, and capital flow in on‑chain environments.

What You Can Expect To Work On

• Design and scale automated DeFi yield systems: Develop logic that monitors protocol performance, reallocates capital, and mitigates smart contract and execution risk.
• Establish robust risk and performance frameworks: Define and implement guardrails for yield volatility, protocol exposure, asset diversification, and liquidity management.
• Operationalise monitoring and compliance: Build tools and a dashboard to monitor protocol health, yield efficiency, and gas optimisation; use insights to improve performance and guide roadmap priorities.
• Integrate with DeFi protocols and chains: Evaluate, test, and onboard new integrations across multiple ecosystems to expand our platform’s capabilities.
• Collaborate across technical and strategy teams: Work closely with smart contract, data, and product leads to design secure and scalable systems.
• Contribute to research and innovation: Stay ahead of DeFi trends, identifying new primitives and opportunities for protocol‑level improvements.

What You Need to Succeed

• 4+ years of software engineering experience, with at least 2+ years focused on DeFi, blockchain, or smart contract development.
• Deep understanding of DeFi mechanisms — including liquidity pools, AMMs, staking, vaults, yield farming, and on‑chain risk management.
• Strong technical background in EVM architecture, Solidity, TypeScript/JavaScript, and familiarity with indexers and frameworks like Hardhat, Foundry, or viem/ethers.js.
• Strong understanding of cross‑chain bridging, gas optimisation, and MEV implications.
• Familiar with on‑chain analytics (e.g. Dune, Arkham, Nansen, custom indexers) for data‑driven decision‑making.
• Experience integrating across multiple DeFi protocols and chains, and understanding of interoperability and bridging mechanics.
• Comfort with data‑driven engineering, using dashboards and analytics tools to inform performance optimisation.
• Knowledge of security best practices for smart contract development, audits, and operational risk mitigation.
• Bonus: experience in risk simulation, yield routing algorithms, or treasury automation.

Benefits and Why You’ll Love Working With Us

• We Listen. Your voice, ideas, and suggestions matter to us, as we continuously evolve.
• Our People. You’ll be working with a diverse, multicultural, international, talented, fun, supportive, and innovative people and teams. We are people you can be proud to work with.
• On The Edge of Innovation. Working on the latest technological, social and financial trends that are web3 and blockchain.
• Flat Organisation. Our team is a community; we work together as a team from all levels in true decentralised spirit.