Senior DeFi Engineer

Placements24; Klerksdorp; Hybrid; ZAR 900,000 - 1,500,000; Full time

Benefits offered by this job

Token options

Remote work

Competitive compensation

Career growth

Job summary

Placements24 is seeking a highly experienced Senior DeFi Engineer to join a fully remote team, driving the design and optimization of DeFi protocols and smart contracts with a focus on security and gas efficiency.

You will mentor engineers, conduct audits, and collaborate with product teams. Requires 6+ years in DeFi, a Master’s or PhD in a related field, and expertise in Solidity across Ethereum, Polygon, and Solana. Remote work with a competitive package and token options.

Qualifications

• Master's or Ph.D. in Computer Science, Financial Engineering, or related field.
• 6+ years of professional software development with DeFi and smart contracts.
• Experience building complex financial protocols (AMMs, lending, derivatives).
• Expertise in Solidity across major blockchains like Ethereum, Polygon, and Solana.
• Strong knowledge of financial mathematics and crypto markets.

Responsibilities

• Design, develop, and deploy secure DeFi protocols and smart contracts.
• Optimize DeFi apps for performance, security, and gas efficiency.
• Conduct security audits and risk assessments for contracts and integrations.
• Collaborate with product teams to implement new DeFi features.
• Mentor junior engineers and stay updated on DeFi trends and risks.

Skills

DeFi development

Solidity

Smart contracts

Security audits

Blockchain architecture

Education

Master's or Ph.D. in CS/Financial Engineering

Tools

Ethereum

Polygon

Solana

Job description

About the Role

Our client is seeking a highly experienced and innovative Senior DeFi Engineer to join their fully remote team. You will be at the forefront of developing and optimizing decentralized finance (DeFi) protocols, contributing to the next generation of financial services built on blockchain technology. This role demands a deep understanding of financial markets, smart contract security, and scalable blockchain architectures. As a key member of our client's engineering division, you will drive technical direction, mentor fellow engineers, and play a crucial role in shaping the future of decentralized finance in the global crypto and blockchain arena. The ideal candidate is a self-starter with a passion for innovation and a proven track record in DeFi development.

Key Responsibilities

• Design, develop, and deploy robust and secure DeFi protocols and smart contracts.
• Optimize existing DeFi applications for performance, security, and gas efficiency.
• Conduct thorough security audits and risk assessments for smart contracts and protocol integrations.
• Collaborate with product teams to conceptualize and implement new DeFi features and products.
• Stay updated on the latest trends, research, and security challenges in the Decentralized Finance space.
• Mentor junior engineers and contribute to a culture of technical excellence and knowledge sharing.

Requirements

• Master's or Ph.D. in Computer Science, Financial Engineering, or a related field.
• 6+ years of professional software development experience, with a significant focus on DeFi and smart contract development .
• Proven experience building complex financial protocols, such as AMMs, lending platforms, or derivatives.
• Expertise in Solidity and experience with various blockchain platforms (e.g., Ethereum, Polygon, Solana).
• Strong understanding of financial mathematics, economic incentives, and cryptocurrency markets .
• Excellent problem-solving skills and experience with formal verification methods is a plus.

Benefits

• Highly competitive salary, token options, and performance bonuses.
• Completely remote work environment with flexible working hours.
• Comprehensive health, dental, and vision coverage.
• Significant opportunities for professional growth and career advancement.
• Exposure to cutting-edge technologies in the rapidly growing DeFi sector .