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Software Engineer

Checkmate
Washington, DC Full Time
POSTED ON 12/13/2025 CLOSED ON 1/11/2026

What are the responsibilities and job description for the Software Engineer position at Checkmate?

About Checkmate

Checkmate Intelligence runs Checkmate (B2C) and Checkmate for Brands (B2B), building the future of consumer identity and adtech. Checkmate has been scaling like crazy and needs more talented hands on deck - the time to get on the rocket ship is now!

Backed by industry-leading investors such as GV, Pinterest's exPresident, Paris Hilton, The Chainsmokers, Fuel Capital, F7 Ventures, Blackbird Ventures, Susa Ventures, Wischoff Ventures, and more, Checkmate Intelligence is poised to continue to disrupt the online shopping industry.

Software EngineerRole Overview

We’re after a Software Engineer with some Shopify Extension experience who gets excited about turning ideas into smooth, scalable products. You’ll be hands-on in building the core of Checkmate — the systems and experiences that help brands make smarter moves, faster.

Responsibilities

  • Design, develop, and maintain responsive and scalable web applications using React and TypeScript.
  • Collaborate with cross-functional teams to define, design, and ship new features that align with user and business needs.
  • Write clean, maintainable, and efficient code while following best practices and industry standards.
  • Optimize components for maximum performance across various web-capable devices and browsers.
  • Implement and manage testing, debugging, and automation tools to ensure product quality.
  • Participate in code reviews and contribute to a culture of continuous improvement.
  • Stay up-to-date with modern frameworks, tools, and methodologies.
  • Contribute to architecture discussions and technical decision-making.

Requirements

Requirements

  • 3 years of experience in web development with a focus on React and TypeScript.
  • This role is remote, but we're looking for someone who can work PT hours. Los Angeles preferred, Australian East Coast (Sydney / Melbourne) or US remote acceptable.
  • Some experience with Shopify extensions
  • Knowledge of eCommerce platforms, analytics tools, and loyalty programs a plus.
  • Proficiency in front-end technologies, including HTML, CSS, JavaScript/ES6 , and modern frameworks.
  • Strong understanding of web performance optimization, scalability, and responsive design.
  • Experience working with RESTful APIs and integrating third-party services.
  • Familiarity with front-end build tools such as Webpack, and npm.
  • Experience with cloud platforms (AWS, GCP) and CI/CD pipelines.
  • Excellent problem-solving skills and ability to think critically in a fast-paced environment.
  • Strong communication skills and ability to articulate technical concepts to non-technical stakeholders.

Benefits

Benefits

  • Competitive salary
  • Healthcare
  • Gym membership
  • Company retreats
  • 4 weeks PTO and health days
  • Additional benefits
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