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Software Engineer, Quality [SDET] NYC/Flexible work arrangements

OneChronos
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Hybrid (New York, NY)$150k - $200kFull-timePosted 4mo ago

About the role

Quality-focused software engineering role building automated test frameworks, CI/CD integrations, and testing infrastructure to scale a high-performance trading platform at OneChronos.

Responsibilities

  • Design, build, and maintain automated test frameworks and testing infrastructure across our trading platform, covering correctness, performance, and reliability.
  • Develop tooling that enables engineering teams to test their own code more effectively, without creating bottlenecks.
  • Define test strategies for new features and system changes in partnership with engineering, SRE, and DevOps teams.
  • Build and own CI/CD pipeline integrations that gate deployments on meaningful quality signals.
  • Build testing infrastructure and validation tooling that surfaces regressions and correctness issues before they reach production.
  • Investigate test failures, quality gaps, and escaped defects, driving structural improvements to prevent recurrence.
  • Participate in design and architecture reviews to identify testability gaps early.

Qualifications

  • You write production-quality code and treat test infrastructure the same way -- not as scaffolding, but as software that needs to be maintained and improved.
  • You have strong experience with test automation frameworks, testing infrastructure, and developer tooling, and have built or meaningfully extended one from scratch.
  • You're fluent in at least one systems-oriented language (Rust, C++, Go, or Java) and at home in Python for scripting and tooling.
  • You have worked in low-latency, high-throughput, or otherwise performance-sensitive environments and understand what it means to test at that layer.
  • You think in edge cases. You're the person on the team who asks "but what happens if..."
  • You work fluidly across organizational lines -- with SRE on reliability, with DevOps on deployment pipelines, with product engineers on correctness.
  • Financial markets or trading systems experience is a plus, not a requirement. Curiosity about the domain is.

Skills

Required:Production-quality coding for test infrastructureTest automation frameworksSystems-oriented languagesPython scripting
Last updated Oct 14, 2026. Interested? Apply on the company site.
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About OneChronos

The Smart Market for Institutional Investors

OneChronos is a U.S. equities ATS designed bottom-up to fundamentally address the growing gap between how trading venues match orders and how traders need to execute.

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