Sr. Software Engineer - B2B

AXS; Los Angeles (CA); On-site; USD 130,000 - 150,000; Full time

Benefits offered by this job

Medical insurance

401k Plan with employer match

Flexible spending account options

Job summary

AXS, located in Los Angeles, is looking for a Senior Backend Engineer to help build systems for the LA28 Olympic and Paralympic Games. This role involves designing and operating backend systems that handle extreme load during global ticketing events. Candidates must have strong experience in C# or Java and proven skills in building distributed systems.

The position offers a salary range of $130,000 to $150,000, along with a comprehensive benefits package including health insurance and a 401k plan.

Qualifications

• Strong experience with C# and .NET/.NET Core, or a Java background with willingness to work primarily in C#.
• Proven experience building and operating distributed systems at scale in production environments.
• Experience designing and scaling API-driven services in cloud environments.

Responsibilities

• Own the design, build, and operation of backend systems powering global ticketing.
• Design distributed systems for high-concurrency traffic.
• Collaborate with product and business stakeholders to define solutions.

Skills

C# and .NET/.NET Core

Distributed systems

Concurrency and fault tolerance

API-driven services

Performance tuning

Service-oriented or microservices architectures

Relational databases

Infrastructure-as-code

4+ years professional development

Bachelor's degree in Computer Science

Education

Bachelor's degree in Computer Science or equivalent experience

Tools

AWS

Docker

Terraform

Job description

AXS is a global ticketing platform that serves thousands of venues and events around the world.

The Role

Join us in building the systems behind the LA28 Olympic and Paralympic Games. We are hiring Senior Backend Engineers to power one of the largest and most demanding ticketing platforms in the world.

This role focuses on designing and operating distributed systems that must perform reliably under extreme, bursty traffic conditions – such as global on‑sale events with massive concurrency and adversarial bot activity. You will work on high‑impact systems where performance, fairness, and reliability directly affect millions of users in real time.

What You’ll Do

• 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 and optimize system 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‑demands 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.

What You Bring

• Strong experience with C# and .NET /.NET Core, or a Java background with willingness to work primarily in C#.
• Proven experience building and operating distributed 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 or microservices architectures.
• 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 Science or equivalent experience.
• Experience mentoring engineers and influencing technical direction.
• Strong communication skills and a high sense of ownership.

Nice to Have

• Experience with event‑driven architectures or streaming systems (e.g., Kafka).
• Experience with NoSQL systems (e.g., DynamoDB, Elasticsearch) in high‑scale environments.
• Familiarity with containerization and infrastructure tooling (Docker, Terraform).
• Experience in ticketing, e‑commerce, or other high‑volume transactional domains.
• Familiarity with TDD/BDD and engineering best practices.

Pay Scale

$130,000 - $150,000

Bonus

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

Benefits

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. Full‑time employees are eligible for these benefits on the first day of employment.

Equal Opportunity Employer

AEG is an equal‑opportunity employer. We comply with all applicable federal, state, and local employment laws in making hiring and employee decisions, including discrimination against applicants or employees on the basis of race, color, marital status, disability, religion, age, sex, sexual orientation, national origin, genetic information, veteran status, or any other legally protected status recognized by applicable law.