Sr. Software Engineer - B2B- AXS
$130,000–$150,000 year
On-siteLos Angeles, California, United States
Job Summary
Senior Backend Engineer role powering the LA28 Olympic and Paralympic Games ticketing platform. You will own the design, build, and operation of backend systems powering global ticketing, handling high-concurrency traffic during on-sale events, and informing architectural decisions across services. You’ll develop and evolve API-driven services used by internal systems and external partners, optimize performance with telemetry and load testing, design for concurrency and fairness, and implement strategies to mitigate fraud, abuse, and bot traffic. This role involves collaboration with product and business stakeholders, leading design and code reviews, and leveraging AI-assisted development tools to accelerate iteration and improve code quality. Candidates may be leveled as Senior Engineer I or II based on experience and interview performance.
Required 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.
- 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.
Desired Qualifications
- 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.
- At AXS, we are dedicated to building a diverse, inclusive and authentic workplace, so if you’re excited about this role but can't "check every box" in the job description, we encourage you
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