Principal Software Engineer

ATPCO; Herndon, Northern (VA, KY); Hybrid; USD 152,000 - 183,000; Full time

Benefits offered by this job

Leave Your Way PTO

401(k) with generous match

Comprehensive Benefits (medical,Dental

Vision & Mental Health

Global Tuition Reimbursement

Standby Flight Program

Job summary

ATPCO is seeking a Principal Software Engineer to architect and scale a global pricing engine that handles 200M+ fares across 160+ countries. You will lead from the front in distributed systems, performance engineering, and large-scale data processing, shaping the future of airline pricing.

You’ll drive technical direction, own complex design decisions, and partner with cross-functional teams to deliver high-impact solutions in a remote-first, flexible environment.

Qualifications

• Expert-level C and Rust programming
• Strong Linux system and performance tuning
• Experience building fault-tolerant distributed systems in production
• Ability to reason about complex algorithms and data structures
• Excellent written and verbal communication in a distributed team

Responsibilities

• Extend and evolve the high-performance pricing engine
• Shape platform architecture and drive technical decisions
• Solve complex distributed systems and performance challenges
• Work across the stack from low-level systems to APIs
• Collaborate with engineers, product teams, and stakeholders to align on goals

Skills

C

Rust

Linux

Distributed systems

Algorithms

Data structures

Ownership

Go

Python

Debugging

Tools

Go

Python

Linux

Job description

## Principal Software EngineerApply: Remote: Herndon Headquarters: Full time: Posted 4 Days Ago: R-00019ATPCO is the world's primary source for air fare content, holding over 200 million fares across 160 countries. Every day, the travel industry relies on ATPCO's technology and data solutions to help millions of travelers reach their destinations efficiently. Join us and contribute to the development of innovative applications that power global travel. ATPCO is everywhere people buy flights. We’re not just shaping the future of air travel– we’re redefining how and where great work happens. At ATPCO, we believe in flexibility, trust, and a culture where your wellbeing comes first **Why Join Us?** Remote-First Culture – Flexibility to work from home in your country of hire Inclusive, Collaborative Culture– Be seen, heard, and valued “Leave Your Way” PTO– Take the time you need, when you need it 401(k) with Generous Employer Match– Invest in your future Comprehensive Benefits– Medical, dental, vision, & mental health Global Tuition and Gym Reimbursement– Learn and be well on us Standby Flight Program– Explore the world **Our Culture:**We’ve built a remote-first culture rooted in trust, transparency, and belonging. With open-door leadership, weekly 1:1s, and real-time recognition, we keep our people connected and valued—no matter where they work.Our cultural pillars of Collaboration, Empowerment, Innovation, Learning, Transparency, and Trust guide how we show up for one another and grow together. **Job Description:** Looking to redefine how the airline industry prices and sells products at a global scale? This is not just another engineering role—this is your opportunity to architect and build a next-generation pricing engine that will power airline retailing across the globe. At ATPCO, you’ll join a newly formed Pricing Platform Team (est. 2024) with a bold mission: to create a highly scalable, cost-efficient, and intelligent pricing platform capable of managing 200M+ fares across 160+ countries. This platform will shape how airlines distribute and optimize their products in real time. As a Principal Software Engineer, you won’t just contribute—you’ll lead from the front, solving some of the hardest technical challenges in distributed systems, performance engineering, and large-scale data processing.Want to redefine how the airline industry prices and sells products at global scale? This role is your chance to shape and extend the pricing engine that powers airline retailing around the world. You’ll join ATPCO’s Pricing Platform Team, formed in 2024 to own a highly scalable, cost-efficient, and intelligent pricing platform that manages 200M+ fares across 160+ countries. The engine is built and running; the mission now is to evolve it to support new use cases and shape how airlines distribute and optimize their products in real time. As a Principal Software Engineer, you’ll lead from the front. You’ll set technical direction on some of the hardest problems in distributed systems, performance engineering, and large-scale data processing, and you’ll spend most of your time building. **What You’ll Do*** Extend and evolve our high-performance, fault-tolerant pricing engine to support new use cases* Shape the platform’s architecture and drive key technical decisions with the team* 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. At 200M+ fares, shaving milliseconds off latency and fractions of a cent off cost adds up fast. Techniques in play include:* Zero-copy data paths* Lock-free data structures* Sophisticated fault tolerance and replication strategies* Get deep in the existing engine’s codebase and design, so enhancements build on what’s already there* Partner with engineers, product, and stakeholders to shape the future of airline retailing technology **What We’re Looking For*** **Systems programming expertise:** expert-level C and Rust. Go or Python are a plus.* **A love of the hard stuff:** complex algorithms, data structures, and systems design, for their own sake and not just as a means to ship a feature.* **Linux depth:** a deep understanding of Linux systems, performance, and resource management.* **Distributed systems at scale:** proven experience building and operating fault-tolerant distributed systems in production.* **A scientific approach:** you work through complex, ambiguous problems with data, measurement, and evidence.* **Ownership:** you take ownership of the product’s success, not just your assigned tickets, and you identify and solve problems proactively.* **Self-directed learning:** you dig into a large, unfamiliar codebase yourself and come with specific, well-researched questions. The team invests heavily in helping people who do.* **Strong technical discussion:** this team enjoys rigorous debate. You argue from data, defend good ideas, and change your mind when shown better ones.* **Clear communication:** excellent written communication and collaboration skills in a distributed, async-friendly team.* **Thoughtful AI use:** you use AI-assisted development tools to increase productivity without lowering the quality bar. **Bonus Points*** Experience in airline pricing, distribution, or ATPCO data* Background building high-throughput, low-latency data platforms **The Impact You’ll Have**Your work will directly influence how airlines worldwide price, distribute, and optimize their offerings, unlocking new capabilities in airline retailing and shaping the future of the industry. **Compensation:****Salary Range**: $152,000 - $183,000 The disclosed salary range applies uniformly across all U.S. locations and is not modified based on geographic differentials. At ATPCO, we are deeply committed to diversity, equity, and inclusion. Our supportive policies promote work-life balance through flexible work arrangements, and we cultivate a workplace where every employee feels valued, respected, and a true sense of belonging. We consider qualified applicants for employment without regard to race, gender, age, color, religion, national origin, citizenship status, marital status, disability, sexual orientation, protected military/veteran status, gender identity or expression, genetic information, marital status, medical condition, or any other legally protected factor. All your information will be kept confidential according to EEO guidelines.