Senior Backend Engineer - Global Ticketing Systems

AXS; Scottsdale (AZ); On-site; USD 130,000 - 150,000; Full time

Benefits offered by this job

Medical, dental and vision insurance

401k with company match

Paid holidays, vacation and sick time

Wellness offerings

Parental leave

Job summary

AXS is seeking Senior Backend Engineers to build the systems behind the LA28 Olympic and Paralympic Games. You will design distributed backend services powering a high-volume ticketing platform, handling extreme concurrency and fraud prevention in real-time.

You will mentor peers, lead architectural decisions, and collaborate with product and business teams to solve ambiguous problems while leveraging cloud-native patterns and AI-assisted development tools.

Qualifications

• Strong experience with C# and .NET / .NET Core, or a Java background with willingness to work primarily in C#.
• Proven experience building andoperatingdistributed systems at scale in production environments.
• Deep understanding of concurrency, fault tolerance, and system design trade-offs.
• Experience designing and scaling API-driven services in cloud environments (AWS preferred).
• Strong experience with performance tuning, bottleneck analysis, and system reliability.
• Solid foundation in service-oriented ormicroservicesarchitectures.
• Experience with relational databases and data modeling at scale (SQL Server, PostgreSQL, MySQL, etc.).
• Familiarity with infrastructure-as-code and modern cloud-native patterns.
• 4+ years of professional software development experience.
• Bachelor’s degree in Computer Scienceor equivalent experience.
• Experience mentoring engineers and influencing technical direction.
• Strong communicationskills and a high sense of ownership.

Responsibilities

• Own the design, build, and operation of backend systems powering global ticketing, including LA28.
• Design distributed systems that handle unpredictable, high-concurrency traffic (10x-100x spikes during on-sale events).
• Drive architectural decisions across services, balancing trade-offs between scalability, latency, cost, and reliability.
• Build and evolve API-driven services used by internal systems and external partners at scale.
• Analyze andoptimizesystem performance using load testing, production telemetry, and observability tooling.
• Design for correctness under concurrency, including challenges like fairness, queuing, and race conditions.
• Develop and implement strategies to mitigate fraud, abuse, and bot traffic in high-demand environments.
• Lead design and code reviews, influencing engineering standards and long-term system architecture.
• Collaborate with product and business stakeholders to define solutions in ambiguous problem spaces.
• Leverage AI-assisted development tools to accelerate iteration and improve code quality.

Skills

C# / .NET

Distributed systems

Concurrency & fault tolerance

API-driven services

Performance tuning

Microservices

Relational databases

Infrastructure as Code

4+ years experience

Mentoring

Communication skills

Education

Bachelor’s degree in CS or equivalent

Tools

Docker

Terraform

Kafka

DynamoDB

Elasticsearch

Kubernetes

Job description

AXS is seeking Senior Backend Engineers to build the systems behind the LA28 Olympic and Paralympic Games. You will design distributed backend services powering a high-volume ticketing platform, handling extreme concurrency and fraud prevention in real-time.

You will mentor peers, lead architectural decisions, and collaborate with product and business teams to solve ambiguous problems while leveraging cloud-native patterns and AI-assisted development tools.