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Staff Software Engineer

Role overview

Qualifications

  • Experience building and maintaining large-scale, customer-facing web applications
  • Strong PHP development experience alongside modern JavaScript frameworks such as React
  • Strong understanding of web performance optimisation, including Core Web Vitals
  • Experience conducting technical audits and translating findings into practical engineering improvements

Responsibilities

  • Drive the technical evolution of our platform, improving performance, scalability and maintainability
  • Lead optimisation initiatives focused on Core Web Vitals, page performance, caching strategies and technical architecture
  • Partner closely with Product and Engineering teams to deliver high-quality features
  • Take ownership of technical audits, identifying opportunities to reduce complexity and modernise legacy systems

Key facts

Hard skills

Other skills

  • Collaboration
  • Problem Solving
  • Mentorship

About the company

Legend logo

Legend

Sports Betting & iGaming

Welcome to Legend, the home of next-level player experience. We're pioneering the way that people, explore, play and bet on what they love. The engine behind 25+ world-class brands in Sports & Gaming. Join a 800+ global team, across 10 global hubs, confidently growing world-leading brands. Driven by data, creativity and collaboration, we move fast, learn constantly and deliver excellence at scale. Our formula to becoming the ‘MVP’ in Sports & Gaming = Mindset. Vision. Performance. Legend is a place where high-performers thrive. Where we win as one and celebrate together. If you're ready to raise the bar, we want to meet you.

Company details

IndustrySports Betting & iGaming
Company size501 - 1000

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Job description

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.
    • Strong PHP development experience alongside modern JavaScript frameworks such as React. 
    • 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.
      •   Salary from EUR4000 per month

    The Interview Process:
    • 1st: Initial Chat with Talent Partner (30-45 mins via Zoom)
    • 2nd: Technical take home task
    • 3rd: Technical Interview with Hiring Manager and Senior Technical Architect
    • 4th: Leadership and Culture Interview with our CTO and People Partner 
    Legend is an Equal Opportunity Employer, we’re dedicated to hiring diverse talent - which includes individuals with different backgrounds, abilities, identities and experiences. If you require any reasonable adjustments throughout your application process, please speak to your Talent Partner or contact the team on talent@l1.com, and we'll do all we can to support you. 

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    MR

    Marcus Rivera

    Chief Revenue Officer

    m.rivera@company.com
    linkedin.com/in/marcusrivera
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