Senior Smart Contract Engineer at Aionex
Senior Smart Contract Engineer at Aionex

Senior Smart Contract Engineer at Aionex

Full-Time 60000 - 84000 £ / year (est.) Home office (partial)
Monad Foundation

At a Glance

  • Tasks: Design and implement smart contracts for a cutting-edge DEX platform.
  • Company: Join Perpl, a pioneering crypto startup backed by top investors.
  • Benefits: Competitive salary, equity, health insurance, and generous vacation policy.
  • Why this job: Be a key player in revolutionising on-chain trading with innovative technology.
  • Qualifications: 3+ years of EVM smart contract experience and strong Solidity skills.
  • Other info: Dynamic work environment with opportunities for professional growth and team bonding.

The predicted salary is between 60000 - 84000 £ per year.

Perpl is a high-performance, orderbook-based perpetuals DEX launching on Monad. We’re backed by top crypto-native investors and building the next evolution of on-chain trading—one that combines CEX-level performance with DeFi composability and transparency. Our mission is to bring the speed, efficiency, and capital depth of traditional finance on-chain, without compromise. Built on Monad, the first high-throughput EVM chain with parallel execution, Perpl enables traders and LPs to operate in a fully permissionless, transparent environment with zero slippage and deep liquidity.

Perpl is seeking a founding Senior Smart Contract Engineer (EVM) to help architect, implement, and secure our core smart contracts. As one of the earliest engineering hires, you’ll play a critical role in building the infrastructure powering on-chain derivatives at scale.

In this role, you will:

  • Design and implement mission-critical smart contracts for the Perpl CLOB and vault system
  • Collaborate closely with engineering, product, and quant teams to ensure robustness and capital efficiency
  • Define testing, simulation, and on-chain monitoring standards for security and reliability
  • Serve as Perpl’s in-house expert on the EVM, Monad’s unique performance characteristics, and gas optimization
  • Own the full lifecycle of smart contract development from design → audit → deployment → upgrade

Qualifications

Required

  • 3+ years of experience building and maintaining EVM smart contracts in production
  • Strong knowledge of Solidity, low-level EVM mechanics, and gas optimization strategies
  • Proven ability to work with external auditors and internal security reviews
  • Experience designing DeFi protocols or financial primitives (DEXs, AMMs, margin trading, oracles, etc.)
  • High agency and ownership mindset—comfortable in a fast-moving, zero-to-one environment
  • Passion for decentralized finance and a deep understanding of the DeFi landscape

Preferred

  • Familiarity with parallelized EVM architectures
  • Experience with Rust or other statically typed languages
  • Background in quant trading, HFT, or crypto derivatives
  • Understanding of chain infra, monitoring, and validator/client dynamics

Location

In-person first with optional work from home flexibility. Team is currently headquartered in London with a few members distributed globally.

Our Benefits

  • Competitive salary, equity and token package
  • Comprehensive health insurance coverage for you and your family
  • Professional development opportunities, including training programs and conferences
  • Generous vacation and paid time off policy
  • Company-sponsored social activities and team-building events
  • Modern and comfortable work environment with state-of-the-art equipment and facilities

Senior Smart Contract Engineer at Aionex employer: Monad Foundation

At Aionex, we pride ourselves on being an innovative leader in the DeFi space, offering our employees a dynamic work culture that fosters creativity and collaboration. As a Senior Smart Contract Engineer, you'll not only have the opportunity to shape the future of on-chain trading but also benefit from competitive salaries, comprehensive health coverage, and professional development opportunities in a modern London office. Join us to be part of a passionate team dedicated to pushing the boundaries of technology in a supportive and engaging environment.
Monad Foundation

Contact Detail:

Monad Foundation Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Smart Contract Engineer at Aionex

✨Tip Number 1

Network like a pro! Reach out to folks in the crypto and DeFi space, especially those who are already working at Aionex or similar companies. A friendly chat can sometimes lead to insider info about job openings or even a referral!

✨Tip Number 2

Show off your skills! If you’ve got some cool projects or contributions to open-source smart contracts, make sure to highlight them. Create a portfolio that showcases your work with Solidity and EVM mechanics—this will definitely catch their eye.

✨Tip Number 3

Prepare for technical interviews by brushing up on your knowledge of gas optimization and DeFi protocols. Practice coding challenges related to smart contracts, as they might throw some real-world scenarios your way during the interview.

✨Tip Number 4

Don’t forget to apply through our website! It’s the best way to ensure your application gets seen. Plus, it shows you’re genuinely interested in being part of the team at Aionex. Let’s get you that dream job!

We think you need these skills to ace Senior Smart Contract Engineer at Aionex

Smart Contract Development
Solidity
EVM Mechanics
Gas Optimization
DeFi Protocol Design
Collaboration with Auditors
Security Reviews
Understanding of DEXs and AMMs
High Agency Mindset
Knowledge of Parallelized EVM Architectures
Experience with Rust
Background in Quant Trading
Understanding of Chain Infrastructure
On-Chain Monitoring

Some tips for your application 🫡

Show Your Passion for DeFi: When writing your application, let your enthusiasm for decentralised finance shine through. We want to see that you’re not just skilled but also genuinely excited about the DeFi landscape and how it’s evolving.

Highlight Relevant Experience: Make sure to detail your experience with EVM smart contracts and any relevant projects you've worked on. We’re looking for someone who can hit the ground running, so showcase your skills in Solidity and gas optimisation strategies.

Tailor Your Application: Don’t send a generic application! Tailor your CV and cover letter to reflect how your background aligns with our mission at Perpl. Mention specific aspects of the job description that resonate with you and how you can contribute.

Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you don’t miss out on any important updates from our team!

How to prepare for a job interview at Monad Foundation

✨Know Your Smart Contracts Inside Out

Make sure you’re well-versed in the specifics of smart contract development, especially with Solidity and EVM mechanics. Brush up on your past projects and be ready to discuss how you’ve tackled challenges like gas optimisation and security audits.

✨Show Your Passion for DeFi

Demonstrate your enthusiasm for decentralised finance during the interview. Share insights about the DeFi landscape and any innovative ideas you have for improving existing protocols or creating new ones. This will show that you’re not just a techie but also someone who cares about the industry.

✨Prepare for Technical Questions

Expect technical questions that dive deep into your experience with EVM and smart contracts. Practice explaining complex concepts clearly and concisely, as you may need to collaborate with non-technical team members. Being able to communicate effectively is key!

✨Understand the Company’s Vision

Familiarise yourself with Aionex and Perpl’s mission and values. Be prepared to discuss how your skills align with their goals, particularly in building high-performance trading infrastructure. Showing that you understand their vision will set you apart from other candidates.

Senior Smart Contract Engineer at Aionex
Monad Foundation

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