Senior Lead Backend Engineer
Neverless Labs S.L. operates Neverless, a regulated financial platform for trading and investing in stocks, ETFs, metals, and more than 800 cryptocurrencies. It also offers interest-bearing strategies, portfolio-backed borrowing, leverage, and automated investment products for individual investors.
Funding history
Investors
Projects
About Neverless Labs S.L.
Neverless Labs S.L. operates the Neverless platform, which provides access to stocks, ETFs, precious metals, and more than 800 crypto-assets with zero trading, FX, and custody fees on many products. The platform supports deposits in fiat or stablecoins, 24/7 trading, leverage, shorting, advanced orders, dollar-cost averaging, price alerts, daily interest, and dividend earnings. Its additional services include market-neutral Strategies™, borrowing against portfolios, and the Boosted Bitcoin Plan. The website states that Neverless Labs S.L. is registered with the Bank of Spain for crypto-asset custody and exchange services, alongside other Neverless operating entities.
Skills
About the Role
Design, build, and scale backend infrastructure supporting trading execution, regulatory reporting, user accounts, and asset custody. Architect distributed systems for high-throughput financial transactions, own service reliability, performance, and security, and maintain CI/CD, monitoring, and observability tooling. Partner with product and compliance teams to deliver regulatory-compliant features and contribute to engineering practices.
Requirements
- 7+ years of software engineering experience.
- 4+ years of Java development experience.
- Experience architecting large-scale complex systems and addressing performance, reliability, and security requirements.
- Strong knowledge of algorithms, data structures, and concurrency programming.
- Experience setting up CI/CD pipelines and automated monitoring.
- Experience with clean coding and TDD.
- Fluency in English.
- Proficiency in Rust.
- Professional experience writing and deploying blockchain smart contracts.
Responsibilities
- Design, build, and scale backend infrastructure for trading execution, regulatory reporting, user accounts, and asset custody.
- Architect and evolve large-scale distributed systems for high-throughput financial transactions.
- Own the reliability, performance, and security of core backend services.
- Set up and maintain CI/CD pipelines, automated monitoring, and observability tooling.
- Partner with product and compliance teams to implement features that meet user and regulatory requirements.
- Establish and champion clean code, TDD, code review, and documentation practices.
- Contribute to technical decision-making and shape the engineering culture as the team scales.
Benefits
- Competitive salary and equity.
- Annual performance bonus.
- Fully expensed equipment.
- Remote-flexible work.
- Opportunity to build core financial infrastructure from scratch at a fast-growing licensed fintech.
- Collaborative, international, and high-calibre engineering team.
