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 Senior Backend Engineer (Solana) to join our growing team and play a crucial role in building and maintaining the backend systems that power our platform. The ideal candidate has extensive experience with the Solana ecosystem, strong backend development skills with TypeScript, and a passion for blockchain technology. The position will report to our Backend Lead.
The current tech stack of LI.FI utilizes:
- Node.js running TypeScript code in Docker containers
- MongoDB and Redis for our data
- ethers.js for communication with the EVM blockchains
- Github, Kubernetes, AWS and CloudFlare for our GitOps CD chain
Please note: You must be located in the EMEA region and have a good technical understanding of the Solana ecosystem. Your application will not be considered otherwise.
What you'll do
- Leading the design, development, and maintenance of Solana-focused backend systems and APIs
- Architecting and implement scalable, robust solutions tailored to Solana’s unique requirements.
- Maintaining high coding standards, conduct code reviews, and ensuring best practices for code maintainability and readability
- Identifying bottlenecks and optimizing code and algorithms to improve system performance
- Implementing monitoring and debugging tools to proactively identify and resolve issues, ensuring high system availability
- Developing and maintaining comprehensive test suites, including unit tests, integration tests, and end-to-end tests, to ensure the reliability of backend systems
- Providing guidance and mentorship to junior developers, helping them grow their technical skills
- Analyzing complex technical problems and propose effective solutions to address them
- Documenting code, APIs, and technical processes to facilitate knowledge sharing within the team and support onboarding of new developers
What makes a good candidate
- Must be located in the EMEA region
- Good TypeScript experience is a must
- Good technical understanding of the Solana ecosystem is a must; understanding of other ecosystems is a plus
- Extensive professional experience in a similar role
- Experience working with Solana smart contracts
- Understanding of document databases and caching
- Experience in software design and architecture
- Deep knowledge of testing frameworks and principles
- Strong communication, collaboration, problem-solving and analytical skills
- Proactivity, strong ability to work well within a team and to be self-guided on a day-to-day basis
- Ability to write maintainable, scalable, production-grade code
- Passion for new technologies and ability to autonomously evaluate them and make suggestions for improvement
- Very strong verbal and writing skills in English to allow effective communication with team members and stakeholders in meetings and documents
- Bachelor's or Master's degree in Computer Science 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
- Embrace your own differences
- Respect and welcome the unique qualities of others
- See others’ differences as an opportunity to grow
- Own it, do it
- Own tasks end-to-end
- Hold yourself to a high bar for execution
- Make bold decisions, and be accountable
- Understand your limitations and seek for help
- Fail forward
- Try - don’t be afraid to fail
- Learn - don’t make the same mistake twice
- Adapt - grow with the experience
- Have fun together
- Take the time to get to know and understand each other better
- Don’t take yourself too seriously and keep it light-hearted
- 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
