Sr. Software Engineer II - Back End - Access Control

AXS is looking for a Sr. Software Engineer to join our team and help power experiences for the LA28 Olympic and Paralympic Games. In this role, you’ll build and scale the ticketing systems that connect millions of fans to unforgettable moments.

We’re looking for someone who thrives working across a mix of tools, languages, and architectures, and enjoys turning complex challenges into seamless, high-impact solutions. You’ll develop B2B applications designed for massive demand, while contributing to enterprise systems that support global audiences at scale.

What You’ll Be Doing

• Lead the implementation of large features or subsystems from design through delivery
• Actively contribute to architectural discussions and help shape long-term technical direction
• Design and deliver new features and enhancements for our global ticketing platforms
• Build resilient, high-performance applications that scale seamlessly during extreme traffic spikes
• Create and maintain services that power our core infrastructure, including APIs for mission-critical products
• Develop scalable modules for both internal systems and external partner integrations
• Partner with third-party providers to create seamless, end-to-end experiences for customers and fans
• Take ownership of technical quality, scalability, and system reliability
• Write clean, consistent, and well-tested code using modern open-source languages and frameworks
• Participate in design and code reviews to uphold best practices and maintain high code quality
• Collaborate closely with engineers, architects, product managers, and business stakeholders to deliver innovative, high-impact solutions
• Mentor team members and provide technical guidance to elevate the team’s capabilities
• Drive continuous improvements in team workflows, tools, and engineering practices

Do you have experience in Web services design?, Do you have a Bachelor’s degree?, * 6+ years of professional software engineering experience, including ownership of large features or systems

• BS in Computer Science or a related technical field (or equivalent practical experience)
• Deep understanding of system design, distributed architecture, and engineering trade-offs
• Strong command of the software development lifecycle, including design, testing, deployment, and observability
• Expertise in C# and .NET Core, with a strong grasp of the surrounding ecosystem
• Proven track record of designing, scaling, and versioning RESTful APIs within distributed microservices architectures
• Strong experience with relational databases (SQL Server, PostgreSQL, MySQL, or Oracle), including performance tuning and data modeling
• Hands-on experience with containerization (Docker) and Infrastructure as Code (IaC) in cloud environments
• Track record of building and operating high-scale, high-availability transactional systems
• Demonstrated ability to quickly learn and apply new technologies in complex environments
• Excellent communication skills, with the ability to influence technical decisions across teams
• High ownership mindset with strong accountability for system quality, scalability, and reliability
• Thrives in fast-paced environments, balancing immediate delivery with long-term architectural health

Nice to Have

• Experience building and maintaining multi-platform SDKs or shared codebases
• Experience with Kotlin Multiplatform or Kotlin Native
• Mobile development experience on iOS and/or Android
• Experience with modern front-end frameworks such as React or Angular
• Familiarity with designing cohesive experiences across web and mobile platforms
• Experience working with AWS and cloud-native architectures
• Experience with Infrastructure as Code tools such as Terraform
• Experience with event-driven systems (e.g., Kafka) and asynchronous architectures
• Proficiency with Git and modern CI/CD pipelines
• Experience with test-driven development (TDD) and/or behavior-driven development (BDD)
• Experience with NoSQL technologies such as Elasticsearch or DynamoDB
• Domain experience in ticketing, inventory management systems, or e-commerce platforms

3.53.5 out of 5 stars Cleveland, OH Hybrid work $131,400 - $148,500 a year - Full-time, Pulled from the full job description

• Tuition reimbursement
• Parental leave
• Health insurance
• 401(k) matching
• Vision insurance
• Health savings account
• Dental insurance, Pay Scale: $131,400-$148,500

Bonus: This position is eligible for a bonus under the current bonus plan requirements.

Benefits: Full-time: We offer a comprehensive benefits package that includes: medical, dental and vision insurance, paid holidays, vacation and sick time, company paid basic life insurance, voluntary life insurance, parental leave, 401k Plan (with a current employer match of 3%), flexible spending and health savings account options, and wellness offerings. Currently, full time employees are eligible for these benefits on the first day of employment.

AXS connects fans with the artists and teams they love. Each year we sell millions of tickets to thousands of incredible events - from concerts and festivals to sports and theater - at some of the most iconic venues in the world. Since our founding in 2011, we’ve consistently pushed the industry forward and improved experiences for fans, making it easier than ever to discover events, find the perfect seats, and enjoy unforgettable live entertainment, and we continue to lead the evolution of our industry today.

We’re passionate about improving the fan experience and providing game-changing solutions for our clients, and we’re always looking for smart, motivated people to help make it happen. Bring your enthusiasm, your big ideas, and your desire to team up with some of the best and brightest in technology and entertainment., * Meaningful Mission- Helping revolutionize an industry and deliver better experiences for fans and clients around the world.

• Development and Learning - Opportunities for learning and leveling up through training and education reimbursement.
• Community & Belonging - A range of Employee Resource Groups (ERGs) that foster connection, inclusion, and professional growth. Access to meaningful volunteer opportunities and community engagement programs to make a positive impact beyond the workplace.

More about AXS

AXS, a subsidiary of AEG, sells millions of tickets each year for 1600+ premier venues, sports teams, and event organizers across North America, Europe, Asia, Australia and New Zealand. Headquartered in Downtown Los Angeles, California, AXS employs more than 900 professionals in multiple locations worldwide. In each location you’ll find a team of dedicated, diverse employees (we’ve dubbed ourselves “Fanatix”) who create groundbreaking products and services in a fun, fast-paced environment. To learn more about our culture and values, visit: https://solutions.axs.com/careers/

More about AEG

For more than 20 years, AEG has played a pivotal role in transforming sports and live entertainment. Annually, we host more than 160 million guests, promote more than 10,000 shows and present more than 22,000 events around the world. We are committed to innovation, artistry, and community, and leverage the power of our 300+ venues, leading sports franchises, marquee music brands, integrated entertainment districts, premier ticketing platform and global sponsorship activations, to create memorable moments that give the world reason to cheer.

Our business is interwoven with the human mind and heart, and we strive to build a diverse and inclusive company that reflects the artists, athletes, and fans that we host; reach beyond traditional boundaries to support the communities in which we operate; and minimize our impact on the environment by adopting sustainable practices throughout our business operations.