Software Engineer

Haystack
Los Angeles, California, United StatesFull-time$143,700–$194,400Posted Sep 16, 2026

About the role

We're hiring on behalf of a Haystack partner!

The Role

  • Own the design, development, and maintenance of test automation frameworks, orchestration platforms, and CI/CD-integrated tooling for integration testing in lab environments.
  • Architect, design, and validate software tooling, including test algorithms, scripts, and data visualization, for complex hardware systems.
  • Define and drive tooling best practices across the engineering organization, establishing patterns for automation and infrastructure-as-code.
  • Analyze test data and collaborate cross-functionally to evaluate product performance and provide feedback.
  • Manage and drive to closure test anomalies, defects, and bugs, performing root-cause analysis and implementing continuous improvements.
  • Operate independently to identify gaps in test infrastructure, propose solutions, and drive implementation with minimal direction.

What You'll Need

  • Bachelor's degree or foreign equivalent in Computer Science, Engineering, Mathematics, or a related field.
  • 3+ years of professional software development experience.
  • 2+ years of experience in designing or architecting new and existing systems, including design patterns and reliability.
  • 1+ years of experience designing and developing large-scale, multi-tiered, multi-threaded, embedded, or distributed software applications, tools, systems, and services using C#, C++, Java, or Perl.
  • 1+ years of Object-Oriented Design experience.
  • Experience programming with at least one software programming language.

What's On Offer

  • Competitive annual salary ($143,700 - $194,400) plus potential for sign-on payments and restricted stock units.
  • Comprehensive benefits package including health insurance, 401(k) matching, paid time off, and parental leave.
  • Opportunity to work on a cutting-edge initiative revolutionizing global connectivity.
  • A role at the intersection of software engineering and systems verification, defining how complex systems are tested.

Apply via Haystack today!

Responsibilities

  • Own the design, development, and maintenance of test automation frameworks.
  • Architect, design, and validate software tooling for complex hardware systems.
  • Define and drive tooling best practices across the engineering organization.
  • Analyze test data and collaborate cross-functionally to evaluate product performance.
  • Manage and drive to closure test anomalies, defects, and bugs.
  • Identify gaps in test infrastructure and propose solutions.

Qualifications

  • Bachelor's degree or foreign equivalent in Computer Science, Engineering, Mathematics, or a related field.
  • 3+ years of professional software development experience.
  • 2+ years of experience in designing or architecting new and existing systems.
  • 1+ years of experience designing and developing large-scale software applications.
  • 1+ years of Object-Oriented Design experience.
  • Experience programming with at least one software programming language.

Benefits

  • Competitive annual salary plus potential for sign-on payments and restricted stock units.
  • Comprehensive benefits package including health insurance and 401(k) matching.
  • Paid time off and parental leave.
  • Opportunity to work on a cutting-edge initiative.

Skills mentioned

C#C++JavaSystem DesignDistributed SystemsEmbedded SystemsMultithreadingAutomationIntegration TestingCI/CD

About Haystack

Haystack combines AI & expert vetting to deliver world-class tech candidates who are engaged, aligned, and ready to interview. We're trusted by over 400,000+ tech candidates, working in Software Engineering, Data, Design, DevOps, Cloud, Tech Management, Testing, Product & Delivery, Architecture and more. 100s of employers from startups and scale-ups like Atom Bank, DuckDuckGo and Goodlord to established enterprises like American Express, Dunelm and AWS use Haystack to connect with qualified tech talent that they can't find anywhere else.

Technology51-200 employeesNewcastle upon Tyne, England

H-1B sponsorship history

Historical employer filing data was found for Haystack. The employer record includes 1 historical certified applications. This is employer-level history, not a guarantee that this role currently offers sponsorship.