C++ Software Engineer, Trading Platform

Atto Trading

New York, New York, United StatesFull-time$175,000–$250,000Posted Oct 28, 2026

About the role

About us:

Atto Trading, a dynamic quantitative trading firm founded in 2010 and leading in global high-frequency strategies, is looking for a C++ Software Engineer to join our team in New York.

We are expanding an international, diverse team, with experts in trading, statistics, engineering, and technology. Our disciplined approach combined with rapid market feedback allows us to quickly turn ideas into profit. Our environment of learning and collaboration allows us to solve some of the world’s hardest problems, together. As a small firm, we remain nimble and hold ourselves to the highest standards of integrity, ingenuity, and effort.

Position Highlights:

We are modernizing our trading and research platform to scale our alpha trading business. The platform will enable researchers to explore, test, and deploy sophisticated signals, models, and strategies across asset classes, in a robust, fully automated manner, while remaining within highly competitive latency targets. You will be responsible for building, maintaining, and supporting the platform that makes this possible.

Your Mission & Goals:

Develop, sustain, and support one of the leading global trading platforms with low-latency C/C++ systems for high-frequency trading (HFT), while consistently enhancing its performance, functionality, and stability

Conduct thorough testing and participate in comprehensive code reviews

Implement interfaces with advanced networking hardware (FPGA, kernel-bypassing drivers)

Demonstrate proactive decision-making and self-direction, while recognizing when to seek guidance

Research platform performance improvements

Must-have:

3+ years of experience developing HFT platforms and trading systems

Experience working with modern C/C++ in a Linux environment

Experience in profiling and optimization

Understanding the principles of OOP, Multithreading, and IPC

AI & Productivity Tools: Demonstrated ability to effectively leverage modern AI tools (e.g., generative AI, code assistants, research and productivity tools) to improve quality, speed, decision-making, and workflow efficiency while maintaining strong judgment, accuracy, and ownership of outcomes

Nice to have:

Knowledge of operating systems, kernel-level understanding of device-level support in Linux

Knowledge of Financial Instruments (Stocks, ETFs, Futures, Options)

Experience with various market data and order entry protocols (ITCH, OUCH, PITCH, CME MDP)

About you:

Bachelor’s degree or higher in Computer Science, Computer Engineering, or a related field

Fast, deep learner who owns their work end to end

Handles multiple priorities in a fast-paced environment

Thrives with autonomy, quick decisions, and a small, team-first environment

Excellent attention to detail and a critical mindset: correct, efficient code held to very high standards

Curiosity and passion for financial markets and trading, with a long-term view of a career in HFT

Benefits:

Competitive rates of pay.

Paid time off (4 weeks).

Coverage of health insurance costs.

Office lunches.

Discretionary bonus system.

Annual base salary range of $175,000 to $250,000. Pay (base and bonus) may vary depending on job-related skills and experience.

Our motivation:

We are a company committed to staying at the forefront of technology. Our team is passionate about continual learning and improvement. With no external investors or customers, we are the primary users of the products we create, giving you the opportunity to make a real impact on our company's growth.

Ready to advance your career? Join our innovative team and help shape the future of trading on a global scale. Apply now and let's create the future together!

Responsibilities

  • Build, maintain, and support low-latency C/C++ trading platform systems
  • Enhance platform performance, functionality, and stability
  • Test software and participate in code reviews
  • Implement interfaces with networking hardware, including FPGAs and kernel-bypassing drivers
  • Research and implement platform performance improvements

Qualifications

  • 3+ years developing HFT platforms and trading systems
  • Experience with modern C/C++ in a Linux environment
  • Experience with profiling and optimization
  • Understanding of object-oriented programming, multithreading, and IPC
  • Bachelor’s degree or higher in Computer Science, Computer Engineering, or a related field
  • Ability to use AI and productivity tools effectively while maintaining accuracy and ownership

Benefits

  • Four weeks of paid time off
  • Health insurance cost coverage
  • Office lunches
  • Discretionary bonus system

Skills mentioned

C++CLinuxPerformance OptimizationMultithreadingConcurrencySoftware TestingSystems EngineeringTCP/IPGenerative AI

About Atto Trading

Atto is a technology company that trades. Founded in 2010, we're a quantitative, high-frequency trading firm built on research, engineering, and a scientific approach to markets. We're small enough that your work matters. Big enough that your work scales. What makes us different: We don't choose between speed and research — we lead with both. Teams here collaborate rather than compete. We share tools, libraries, and knowledge because that's how you build something better, faster. Curiosity drives everything. Real edge comes from understanding how things actually work, not just reacting to them. Our expertise: Market microstructure. Non-linear modeling. High-performance engineering that sits at the intersection of math and markets. More than fifteen years of compounding knowledge, tooling, and edge. Our values: Persistence. Curiosity. Team first. Who thrives here: Engineers, researchers and competitive programmers who care about the work — not just the title. People from top HFT firms or strong academic backgrounds in math, physics, or computer science who want to work on problems that actually challenge them. You think deeply about latency, market microstructure, or model design — and you want to be around others who do too. You want ownership of what you build, a team that pushes you, and an environment where ideas win on merit. If you're looking for a firm where your work is visible, your opinion counts, and you're compensated well for the impact you make — we should talk. We're always hiring exceptional talent. Explore opportunities at https://atto-trading.com/join-us Specialties: Quantitative Trading, High-Frequency Trading, Algorithmic Trading, Market Making, Quantitative Research, Market Structure, High-Performance Engineering, Alpha Research, Systematic Trading, Competitive Programming.

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