Principal Software Engineer

ATPCO is the world's primary source for air fare content, holding over 200 million fares across 160 countries. The Principal Software Engineer will lead the development of a next-generation pricing engine that powers airline retailing globally, tackling complex technical challenges in distributed systems and performance engineering.

Responsibilities:

• Design and build a high-performance, fault-tolerant pricing engine from the ground up
• Solve complex challenges in distributed systems, scalability, and reliability
• Work across the stack—from low-level system interactions to distributed algorithms and APIs
• Optimize for extreme performance using advanced techniques like:
• Zero-copy data paths
• Lock-free data structures
• Sophisticated fault tolerance and replication strategies
• Partner with engineers and stakeholders to shape the future of airline retailing technology
• Spend the majority of your time hands-on, tackling the hardest technical problems

Requirements:

• Expert-level programming skills in C/C++, Rust, Go, or Python, with strong fundamentals in algorithms, data structures, and systems design
• Deep understanding of Linux systems, performance, and resource management
• Proven experience building and operating fault-tolerant distributed systems at scale
• Strong problem-solver who thrives in complex, ambiguous environments and takes a data-driven, scientific approach
• Comfortable working across the stack—from low-level systems to distributed architecture and APIs
• Highly self-driven and autonomous, with the ability to proactively identify and solve problems
• Excellent written communication and collaboration skills in a remote, async environment
• Thoughtful user of AI-assisted development tools to enhance productivity while maintaining high standards of quality
• Experience in airline pricing, distribution, or ATPCO data
• Background in building high-throughput, low-latency data platforms