OneChronos is a technology company at the intersection of Capital Markets, Machine Learning and Auction Theory. We’re bringing “Smart Markets,” the academic term for markets that match counterparties using mathematical optimization, to finance. Smart Markets have a proven ability to outperform traditional auctions, and the theory underpinning them was the subject of the 2020 Nobel Prize in Economics.

Our goal is to expand the pie of trades that can occur, by empowering users with venue-level tools to better manage and express their trading or risk management objectives. OneChronos is a Y Combinator alum and venture backed start-up company with offices in New York City’s Soho neighborhood. Take a look at our launch post on Hacker News for more information: https://news.ycombinator.com/item?id=30247159

We’re a company of mostly engineers, founded by engineers, and every person at the company is an individual contributor in some form.

Overview and Job Description

OneChronos is seeking a software engineer to design and optimize high-performance trading systems that power our periodic auction matching infrastructure. This is a systems programming role focused on low-latency, high-throughput distributed computing, with exposure to infrastructure and DevOps. The ideal candidate has experience building real-time, performance-sensitive systems and thrives in a collaborative, research-driven environment at the intersection of mechanism design and financial markets.

As a software engineer at OneChronos, your work will span order and data workflow, periodic auction execution, system reliability, and performance optimization, ensuring the platform is efficient, fault-tolerant, and capable of handling complex trade matching at scale.

About (www.OneChronos.com)

OneChronos is a technology company of diverse thinkers innovating at the intersection of capital markets, mechanism design, and operations research, working to grow the global GDP by designing and operating matching markets leveraging advances in auction theory and artificial intelligence. Our software and systems are developed in house and match billions of dollars per day of security transactions.

Skills and Qualifications

• 3+ years of professional software engineering experience
• Passion for the craft of writing high-quality code meant to be read and easily understood by a growing team
• Proficiency in a systems-level programming language (e.g., Rust, C++, Java), with Rust being a plus
• A polyglot mindset
• Highly detail-oriented, with a focus on ensuring correctness, consistency, and reliability
• Passionate about low-latency, high-performance computing, and memory management
• Comfort working with large-scale data pipelines and event-driven architectures
• Ability to write clean, well-tested code and collaborate in a highly technical team
• Hands-on experience with production systems and an understanding of operational challenges
• Experience with CI/CD pipelines, automated testing, and deployment best practices

Benefits at OneChronos include

• Competitive compensation (salary, potential bonus, potential ownership interest)
• Hybrid working flexibility
• Healthcare insurance/healthcare insurance allowance (geography dependent)
• Health & Wellness allowance
• Competitive vacation policy
• Competitive Pension Plan
• Office snacks and drinks
• Travel season ticket loan
• Significant daily opportunities to be challenged, learn and grow
• Opportunity to work with a diverse group of people who care about each-others progress as much as that of the business success
• Ability to be excited about and proud of your business. Everyday

 OneChronos is committed to equal employment opportunities to all employees and applications regardless of academic area of study, race, color, religion, creed, age, national origin or ancestry, ethnicity, sex, sexual orientation, gender identity or expression, disability, military or veteran status, or any other category protected by federal, state or local law.