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Senior Backend Engineer

Cortex

$135,000 - $200,000
Oct 29, 2025
Remote, US
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Cortex is seeking a Senior Backend Engineer to help build a new category of developer tooling, solving deeply technical problems and diving into scalability issues to power their enterprise Internal Developer Portal.

Requirements

  • 5+ years of experience building backend applications using any modern programming language
  • Experience with distributed systems, microservices, and cloud computing platforms
  • Experience with modern data storage solutions, such as MySQL, Postgres, MongoDB etc.
  • Knowledge of current standard methodologies and to try, learn and adapt to new technologies and programming languages
  • Solid fundamental skills in data structures, algorithms, and web development best practices
  • Excellent problem-solving and analytical skills

Responsibilities

  • Design, develop, and maintain scalable, and efficient backend systems and services that meet enterprise requirements
  • Work alongside other engineers to build new features and enhance existing ones
  • Optimize and improve the performance, reliability, and scalability of existing backend systems
  • Conduct code reviews and provide constructive feedback to team members
  • Participate in operating our systems in production, including Incident Response on a rotational basis
  • Write clean, maintainable, and testable code that adheres to best practices
  • Continually improve existing planning, development, deployment processes

Other

  • Bachelor's degree in Computer Science or related field, or equivalent work experience
  • Ability to mentor and coach junior engineers
  • Strong communication and collaboration skills
  • Partner closely with engineering, product, leadership, sales, and our customers to better understand design requests and user experiences
  • We’re fully remote and welcome candidates from anywhere in the US!