Senior Software Engineer

2 weeks ago

Cambridge, MA, United States Cartesian Full time

Senior Software Engineer at Cartesian seeks an exceptional engineer to help scale our product 1000x. The full-time role is located in Kendall Square, Cambridge, MA.

About the Company

Cartesian is building spatial intelligence for indoor environments to drive operational efficiency. We tackle one of the biggest challenges in the $35T global retail industry: in?store inventory visibility. Our platform delivers accurate indoor positioning and actionable product location insights, helping retailers streamline operations, optimize workflows, and reduce inefficiencies. By fusing wireless signals and mobile computer vision, we provide a uniquely scalable and infrastructure?free solution already deployed by international fashion brands.

About the Role

We are seeking an exceptional engineer to help us 1000x our product scale. Youll have full ownership over major features, wear a lot of hats, and work alongside a highly technical team of engineers and applied researchers.

Responsibilities
  • Develop quality software and web applications.
  • Analyze and maintain existing software applications.
  • Design highly scalable, testable code.
  • Discover and fix programming bugs.
  • Design and implement reliable, scalable, and cost?effective backend systems and new features across our API, data, ML, and DevOps platforms.
  • Be independent and own major features from ideation through deployment.
  • Contribute to engineering best practices, planning, roadmap, and culture.
Qualifications
  • Bachelors degree or equivalent experience in Computer Science or related field.
  • Development experience with programming languages.
  • SQL database or relational database skills.
  • 3+ years of demonstrated expertise in building scalable web services and intuitive APIs with modern Python.
  • Experience in distributed systems for compute?heavy ML workloads.
  • Knowledge of data structures, database query optimization and efficient data pipelines for TB?scale datasets.
  • Experience developing dashboards for internal and external users.
  • Managing cloud infrastructure using IaC tools (ideally on Azure), including Kubernetes, Helm, Terraform.
  • Improving CI/CD pipelines to ship quickly and with high quality.
About You
  • High Ownership, Relentless Problem Solver: You are a generalist who can tackle unfamiliar problems across our stack (infra, data, ML, APIs). You put in the hard work upfront and drive to deliver.
  • Good Taste: You default to simple, maintainable solutions and consider how system design impacts customer experience, engineering velocity, and operational complexity. You articulate your reasoning to help the team make better decisions.
  • Team Player and Low Ego: Your decision?making centers around team success rather than being right. You give 100% and expect the same from others, and you are a good leader, listener, mentor, and doer.
  • Growth Oriented: You have a track record of picking up new skills and growing quickly, and you actively seek critical feedback from others.
Technology
  • Frontend: Next.js, Typescript, Tailwind.
Interview Timeline
  • Intro with Co?Founder (20 minutes).
  • Three Technical Interviews (45?90 minutes each).
  • Project Deep?Dive.
  • Coding Exercise (Live or Take?Home + Follow?Up).
  • System Design.
  • References.
  • Offer

Seniority level

Mid?Senior level

Employment type

Full?time

Job function

Engineering and Information Technology

Industries

Technology, Information and Internet

Base pay range

$120,000.00/yr $170,000.00/yr

Notes

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