Sr. Software Engineer; Ruby on Rails

Are you obsessed with data, partner success, taking action, and changing the game? If you have a whole lot of hustle and a touch of nerd, come work with Pattern! We want you to use your skills to push one of the fastest-growing companies headquartered in the US to the top of the list.

Pattern accelerates brands on global ecommerce marketplaces leveraging proprietary technology and AI. Utilizing more than 46 trillion data points, sophisticated machine learning and AI models, Pattern optimizes and automates all levers of ecommerce growth for global brands, including advertising, content management, logistics and fulfillment, pricing, forecasting and customer service. Hundreds of global brands depend on Pattern’s ecommerce acceleration platform every day to drive profitable revenue growth across 60+ global marketplaces—including Amazon,  ,  , eBay, Tmall, Tik Tok Shop, JD, and Mercado Libre.

To learn more, visit  or email [email protected] .

Pattern has been named one of the fastest growing tech companies headquartered in North America by Deloitte and one of best-led companies by Inc. We place employee experience at the center of our business model and have been recognized as one of Newsweek’s Global Most Loved Workplaces®.

The Senior Software Engineer leads and oversees the software engineering function in developing, releasing, and maintaining software applications and systems according to business needs. This role involves leading back‑end development initiatives, collaborating with cross‑functional teams, and integrating AI solutions to drive greater operational efficiency.

• Lead the development focusing on workflow automation and AI integration.
• Collaborate cross‑functionally with product stakeholders and brand management to ensure alignment with business needs.
• Work closely with front‑end engineers to ensure seamless integration of back‑end services.
• Contribute to the evolution of our tech stack, primarily using Node.js and Ruby on Rails.
• Own and continually improve the throughput and stability of product delivery and application lifecycle, in partnership with product and program management.
• Mentor junior engineers and contribute to a culture of continuous improvement and innovation.

• 5+ years of professional software engineering experience, with a focus on back‑end development.
• Proficiency in Node.js or Ruby on Rails, databases (relational or No
  
  SQL); experience with Python, Go, or Terraform/IaC is a plus.
• Strong understanding of SaaS products and experience in fast‑paced, iterative development environments.
• Proven ability to lead projects and work independently with minimal supervision.
• Experience working with cross‑functional teams and managing stakeholder relationships.

• You are seen and trusted as a technical expert at Pattern, driving new solutions and efficiencies through innovative software development.
• Your work doesn't stop at code delivery; you consider the entire product lifecycle and collaborate across functions to ensure maximum value.
• You care about code quality and collaborate with other stakeholders to ensure our solutions resonate with business needs.
• All solutions have been tested and proven for impact and cost optimization.
• You are effective at delegating and monitoring repeatable and task‑focused work with junior engineers, optimizing your time and energy across both strategy and execution.

• You will own significant components of our SaaS platform cess in this role could potentially lead to expanded responsibilities as you demonstrate results through innovative solutions.

• You will work under the supervision of a Principal Software Engineer, collaborating with a team of front‑end and back‑end engineers based in the US. The team follows a hybrid work schedule;
  Monday, Wednesday, and Thursday in the office, and work from home on Tuesday and Friday.

• Game Changers – A game changer is someone who looks at problems with an…