Senior Engineer, Core Host

Job Description

JOB DESCRIPTION – Senior Engineer
Location: Arizona
Division: tm1 and Core
Line Manager: Matt Giaco
Contract Terms: Full Time
THE TEAM
The tm1 Core Engineering team is the backbone of Ticketmaster's technology ecosystem, delivering the foundational platform services that power everything from B2B solutions to fan-facing experiences. We steward an environment that spans the spans the spectrum from emulated mainframe to modern, event-driven services-while innovating with modern technologies to create seamless, scalable capabilities.
Our work bridges the past and the future: blending time-tested systems with cutting-edge engineering to unlock possibilities for Ticketmaster and, ultimately, craft unforgettable moments for millions of fans worldwide.
THE JOB
Ticketmaster is seeking a Senior Engineer to join our tm1 Core Host Engineering team-a group that thrives at the intersection of legacy resilience and modern innovation. We're looking for proactive, collaborative engineers with a proven ability to tackle complex challenges across the stack.
In this role, you'll help modernize and evolve Tier 1 systems that power Ticketmaster's global platform, blending time-tested foundations with cutting-edge technologies and architectural patterns to deliver seamless experiences for fans worldwide.
If you're equally comfortable bit-banging in C/C++ and assembly as you are designing with modern paradigms-think Bazel, Rust, Docker, Kafka, and GitLab-you'll feel right at home here. Bring your curiosity, your craftsmanship, and your passion for building systems that matter.
WHAT YOU WILL BE DOING
• Design and develop features for Ticketmaster's Host Ticketing System using a range of languages-from low-level VAX Assembly and C/C++ to modern technologies like Rust and beyond.
• Maintain and enhance an extensive CI/CD test suite (4,500+ scenarios) to ensure the reliability, scalability, and resilience of our core systems.
• Bridge legacy and modern paradigms by integrating established technologies with cutting-edge solutions such as Rust, Kafka Streams, and next-generation database platforms to unlock new capabilities across TM Core.
• Consult and contribute to the modernization of a large polyglot codebase spanning decades, applying architectural best practices to evolve systems without compromising stability.
• Champion engineering excellence through rigorous standards in test coverage, enterprise compliance, high availability, low latency, and fault tolerance-delivering systems that meet the demands of a global platform.
• Create and maintain comprehensive documentation, including onboarding guides, system overviews, runbooks for development and troubleshooting, and forward-looking recommendations for continuous improvement.
• Collaborate across teams to influence technical direction, share expertise, and ensure alignment with Ticketmaster's target architecture and strategic goals. (Suggested addition: emphasizes cross-functional impact.)
• Drive innovation and performance tuning, identifying opportunities to optimize legacy workflows and introduce modern patterns for efficiency and scalability. (Suggested addition: signals proactive improvement mindset.)
WHAT YOU NEED TO KNOW (or TECHNICAL SKILLS)
• Bachelor's degree in Computer Science or a related technical field-or equivalent practical experience.
• 7+ years of hands-on software development experience , including work on high-volume, mission-critical systems.
• 5+ years of proficiency in C, C++, and/or Rust , with bonus points for experience in VAX or other assembly languages.
• Strong advocate for automation and DevOps , with experience in automated testing, continuous integration, and continuous delivery.
• Solid understanding of Linux environments and system-level programming concepts.
• Commitment to stability, quality, and reliability , with a track record of building resilient systems.
• Proven ability to thrive both independently and in collaborative, cross-functional teams.
• Innate curiosity for technology across eras -from low-level systems of the 1970s to modern paradigms shaping today's architectures.
YOU (BEHAVIOURAL SKILLS)
• Clear and confident communicator , able to articulate ideas, provide status updates, and advocate for (or challenge) approaches and designs in a constructive manner.
• Strong documentation mindset , committed to making knowledge accessible through organized resources such as Confluence, wikis, or similar platforms-helping new team members onboard smoothly.
• Self-management and accountability , with the ability to prioritize tasks, estimate effort accurately, and deliver high-quality work on time.
• Collaborative and adaptable , skilled at working with diverse teams-including engineering and product-while incorporating feedback and managing expectations on issues and enhancements.
BENEFITS & PERKS
Through our 'Taking Care of Our Own' program, we provide benefits across six key pillars:
• HEALTH: Medical, vision, dental and mental health benefits for you and your family, with access to a health care concierge, and Flexible or Health Savings Accounts (FSA or HSA)
• YOURSELF: Free concert tickets, generous paid time off including paid holidays, sick time, and personal days
• WEALTH: 401(k) program with company match, stock reimbursement program
• FAMILY: New parent programs including caregiver leave, plus fertility, adoption, foster, or surrogacy support
• CAREER: Career and skill development programs with School of Live, tuition reimbursement, and student loan repayment
• OTHERS: Volunteer time off, crowdfunding match
LIFE AT TICKETMASTER
We are proud to be a part of Live Nation Entertainment, the world's largest live entertainment company.
Our mission at Ticketmaster is to connect people around the world to the live events they love. Ticketmaster is the world's largest ticket marketplace and the global market leader in live event ticketing products and services. Through official partnerships with thousands of venues, artists, sports teams, festivals, performing arts centers and theaters, Ticketmaster processes 550 million tickets per year across 35+ different countries.
We do it all with an intense passion for Live and an inspiring and diverse culture driven by accessible leaders, attentive managers, and enthusiastic teams. If you're passionate about live entertainment like we are, and you want to work at a company dedicated to helping millions of fans experience it, we want to hear from you.
Our work is guided by our values:
Reliability - Fans and clients count on us to power their live event experiences and we rely on each other to make it happen.
Teamwork – While we celebrate individual achievements, we know have more success as a team.
Integrity - We are committed to the highest moral and ethical standards on behalf of the countless partners and stakeholders we represent.
Belonging - We are committed to building a culture in which all people can be their authentic selves, have an equal voice and opportunities to thrive.
EQUAL EMPLOYMENT OPPORTUNITY
We aspire to build teams that reflect and support the fans and artists we serve. Every day we aim to promote environments where everyone can be themselves, contribute fully, and thrive within our company and at our events. As a growing business we will encourage you to develop your professional and personal aspirations, enjoy new experiences, and learn from the talented people you will be working with.
Ticketmaster strongly supports equal em

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Jobcode: Reference SBJ-9z13n4-18-97-14-86-42 in your application.