Staff Software Engineer

About the role

You must be based in or willing to relocate to Slovakia

About Legend

At Legend, we're building next-level player experiences. With 20+ years of proven success we’re the world's leading Sports and Gaming marketing company.

Our people are our edge. 600+ sharp, ambitious Legends across 22+ countries who move fast, learn quickly and win together. Here growth isn’t a perk, it’s the standard. You’ll stretch, level-up and carve out a career as bold as the products we build. We celebrate wins and create experiences that people talk about for years - for our players & for each other. If you’re ready to shape the future of player experience and enjoy the ride while you do it, this is where you’ll thrive.

The Role

Legend is hiring a Senior Software Engineer to help shape the performance, quality and technical evolution of one of our core customer-facing comparison platforms. Working closely with Product and Engineering, you'll lead optimisation initiatives across areas such as Core Web Vitals, application architecture and platform performance, while delivering new features that support our future roadmap.

Your Impact: - Drive the technical evolution of our platform, improving performance, scalability and maintainability across our comparison products.

- Lead optimisation initiatives focused on Core Web Vitals, page performance, caching strategies and technical architecture, helping us build faster, more reliable customer experiences.

- Partner closely with Product and Engineering teams to deliver high-quality features that support key project roadmaps while continually improving the existing platform.

- Take ownership of technical audits, identifying opportunities to reduce complexity and modernise legacy systems.

- Champion engineering best practices through hands-on development, thoughtful code reviews and mentoring, helping raise the technical bar across the team

What You'll Bring - Experience building and maintaining large-scale, customer-facing web applications.

- HTML & CSS is essential - apart from that we are tech stack agnostic!

- A strong understanding of web performance optimisation, including Core Web Vitals, page rendering, caching strategies and application architecture.

- Experience conducting technical audits and translating findings into practical engineering improvements.

- A product engineering mindset, balancing technical quality with customer and business outcomes.

- Confidence working within legacy systems, identifying opportunities to simplify architecture while delivering incremental improvements.

- Comfortable challenging technical approaches and collaborating with stakeholders to find the right solution.

Bonus points for:

- Knowledge of SEO-focused or high-traffic content platforms.

- Experience with cloud infrastructure (AWS) and observability tooling.