Mid/Senior Smart Contract Developer

Posted Oct 16

LI.FI is simplifying multi-chain DeFi for traditional financial institutions, fintechs and service providers by offering a unified API to access all on-chain liquidity across major blockchains for best price same-chain and cross-chain swaps. We are a passionate team on a mission to enable a fairer, more decentralised world. Apart from the tech, we care a lot about user experience and aim to make complex technologies accessible to everyone.

A quick run-down of the job

We are looking for a Mid/Senior Smart Contract Developer to join our team responsible for our smart contract operations across more than 30 EVM networks and Solana, ensuring their security, efficiency and seamless integration.

In this role, you will collaborate closely with team members to expand our extensive smart contract codebase and maintain a wide range of production contracts. Your curiosity, combined with deep technical expertise, will enable us to swiftly and efficiently adopt new technologies while ensuring that our smart contract architecture remains cutting-edge. Your proactive problem-solving approach will be key in advancing our smart contract initiatives. You will be reporting directly to the Smart Contract Lead.

Please note: This role requires you to be located in EMEA or APAC regions. Your application will not be considered otherwise.

Our current stack:

Our team prides itself on harnessing cutting-edge technologies and versions from a modern blockchain development environment:

  • Solidity
  • Yul/Assembly
  • Foundry
  • TypeScript

What you’ll do

  • Contribute to development, deployment and configuration of our 500+ production smart contracts across 30+ EVM networks, ensuring security and optimal (gas) performance
  • Support the expansion into new, non-EVM ecosystems
  • Apply industry best practices and collaborate with external auditors to perform regular code audits, maintaining the highest security standards
  • Continuously review and enhance smart contract architecture to align with business needs, security requirements, and performance goals
  • Drive innovation and thought leadership by researching and integrating emerging technologies and by attending relevant industry conferences
  • Create scripts and tools to improve task execution efficiency and security
  • Collaborate closely with leadership to shape our cross-chain infrastructure strategy and contribute to our overall technical vision

What makes a good candidate

If you thrive in fast-paced environments, are driven by curiosity, eager to learn and grow, and ready to take ownership of your work, we’d love to hear from you!

  • Solid software development experience with a focus on Solidity (at least 3-5 years for Mid and 6+ for Senior).
  • Proficiency in YUL/Assembly and experience deploying smart contracts across multiple EVM networks.
  • Solid experience in TypeScript (at least 3 years).
  • 2 years of experience with at least one, but preferably more non-EVM smart contract ecosystems (e.g. Cosmos, Aptos, TON).
  • Meticulous and quality-driven, you ensure high-quality outputs in all aspects of your work.
  • Strong written and verbal communication skills for effective interaction within a cross-cultural team and with external stakeholders.
  • Experience working with/for a major DeFi protocol, especially a bridge or cross-chain protocol is a plus.
  • Expertise in intent protocols and/or a strong track record of implementing zkProof technologies in practical applications are a plus.
  • Contributions to Ethereum Improvement Proposals (EIPs) or other blockchain initiatives are a plus.
  • A degree in Computer Science or a related field is a plus.

We encourage you to apply if you feel your experience and skills equip you for this job but are not listed here!

Company culture

  • Embracing the differences
  1. Embrace your own differences
  2. Respect and welcome the unique qualities of others
  3. See others’ differences as an opportunity to grow
  • Own it, do it
  1. Own tasks end-to-end
  2. Hold yourself to a high bar for execution
  3. Make bold decisions, and be accountable
  4. Understand your limitations and seek for help
  • Fail forward
  1. Try - don’t be afraid to fail
  2. Learn - don’t make the same mistake twice
  3. Adapt - grow with the experience
  • Have fun together
  1. Take the time to get to know and understand each other better
  2. Don’t take yourself too seriously and keep it light-hearted
  3. Fun should be coming from a place of love and respect

What you’ll get

  • Annual team offsites (Thailand was a blast at the beginning of 2023, Vietnam this year was blast-ier; let’s see what happens in 2025!)
  • Flexible remote days
  • Flexible working hours
  • Equity participation from Day 1
  • Entitlement to work computer (choice of equipment)
  • 1 Conference per year near your city of residence
  • An annual 1,000€ personal development budget once you have worked 6+ months (pro-rated the first year)
  • A one-time 1,000€ remote budget to use on coworking, office setup, etc.
  • Unlimited PTO

If you join us as an independent contractor, you’re only entitled to the first four benefits of this list.

Application process

Setting yourself up for success starts with the application! Click here to discover valuable tips that will help you navigate our application process effectively.

Li.Fi is an equal opportunity employer. We encourage individuals of all backgrounds to apply. Join us in our dedication to fostering a workplace that values and respects each team member's unique contributions..

Shortlisted candidates will undergo a comprehensive interview process, including a people operations interview, a take-home assignment, a meet-the-team & founder interview, and a reference check.

For more information, visit our page detailing our hiring process!