Principal Software Engineer

Live Nation Entertainment

C++ engineer modernizing payment processing systems at Ticketmaster. Engaging in design, development, and integration of payment solutions for live events.

Posted 5/2/2026full-timeRemote • Arizona, Florida • 🇺🇸 United StatesLeadWebsite

Tech Stack

Tools & technologies

GRPCKafkaLinuxRustUnix

About the role

Key responsibilities & impact

Maintain and strategically modernize high-throughput payment processing systems handling real financial transactions in real time
Drive platform migration work, including migrating a core Windows C++ authorization gateway to Linux via Clang and Bazel
Develop robust payment integrations with third-party gateways (Chase Paymentech, Barclays, HSBC, AMEX, Adyen, Braintree, Klarna, Shift4, and others)
Decompose legacy IPC frameworks into gRPC services, enabling payment components to be reused across the broader payments ecosystem
Implement security-critical features involving encryption, PCI compliance, and sensitive payment data handling
Optimize performance of transaction processing pipelines where latency directly affects whether a customer completes a purchase
Incrementally steer legacy codebases toward modern C++ practices without breaking the payment flows that depend on them
Design and implement comprehensive testing including unit tests, integration tests, and fuzz testing for security-critical components
Debug and resolve production issues in systems with complex interdependencies and real operational takes
Collaborate with payment operations teams to onboard new payment methods and gateway providers
Ensure compliance with PCI-DSS and other financial industry standards
Participate in on-call rotation for production payment system support

Requirements

What you’ll need

7+ years of professional C++ development experience in production environments
Modern C++ fluency
Strong understanding of systems programming, including memory management, concurrency, and performance optimization
Ability to reason about undefined behavior, and its practical consequences across platforms
Systematic debugging methodology
Toolchain understanding and cross-compilation concerns
Proficiency with build systems — Bazel experience highly valued
Experience working with legacy codebases older than 10 years — ability to understand, respect, and incrementally modernize existing systems
Experience with or strong interest in payment processing or financial transaction systems
Deep knowledge of security best practices
Proficiency with AI-assisted development tools (e.g., Claude, Codex) with mature judgment
Understanding of HTTP/HTTPS protocols and RESTful API design
Experience with Linux/Unix environments
Rust experience or genuine interest in learning it
gRPC experience or familiarity with service decomposition from monolithic architectures
Payment gateway integration experience (Chase Paymentech, Braintree, Adyen, or similar)
PCI-DSS compliance knowledge and implementation experience
Experience with platform migrations (e.g., Windows to Linux, MSVC to Clang)
Bazel build system expertise
Performance profiling experience
Experience with shared memory, IPC frameworks, or low-level concurrency primitives
Kafka or other event streaming platforms experience
OpenSSL/cryptographic libraries hands-on experience
Familiarity with AI-powered code review and static analysis tools
Awareness of security considerations when using AI tools with legacy or under-documented systems

Benefits

Comp & perks

Medical, vision, dental and mental health benefits for you and your family
Access to a health care concierge
Flexible or Health Savings Accounts (FSA or HSA)
Free concert tickets
Generous paid time off including paid holidays, sick time, and personal days
401(k) program with company match
Stock reimbursement program
New parent programs including caregiver leave
Fertility, adoption, foster, or surrogacy support
Career and skill development programs with School of Live
Tuition reimbursement
Student loan repayment
Volunteer time off
Crowdfunding match

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

C++modern C++systems programmingmemory managementconcurrencyperformance optimizationdebugging methodologyBazelgRPCpayment gateway integration

Soft Skills

systematic debuggingcollaborationjudgment