Backend Engineer

Senior Backend Engineer – Sports Trading Platform

Location: Lisbon, Portugal (Hybrid)

Salary: Up to €80,000

We're working with a fast-growing technology company building high-performance, real-time trading infrastructure for the sports betting industry.

They're looking for an experienced Backend Engineer to join a small engineering team, developing scalable APIs and systems that process high-frequency data and enable real-time trade execution.

Responsibilities

• Design, build and optimise scalable backend services and APIs.
• Develop high-performance systems handling real-time trading data.
• Work on database architecture, optimisation and performance.
• Improve system reliability, latency and scalability.
• Collaborate with a small engineering team on technical decisions.

Requirements

• 5+ years of backend development experience.
• Strong commercial experience with Node.js, TypeScript and SQL.
• Experience designing and building scalable APIs.
• Strong understanding of database design and optimisation.
• Professional experience within the sports betting industry is highly desirable.
• Comfortable working independently in a fast-paced environment.

Nice to have: Experience with trading platforms, Rust or Python.

An opportunity to work on technically challenging, low-latency systems within a growing technology business, with genuine ownership and impact.