Software Engineer (SE / Sr SE), Fullstack

Posted 13 Days Ago
Santa Clara, CA, USA
Hybrid
120K-200K Annually
Senior level
Software
The Role
Build and maintain full‑stack web applications and APIs for data and simulation platforms. Design relational data models, backend Python services, async jobs, and React/TypeScript frontends. Implement tooling for scenario authoring, large-scale simulation runs, results browsing, and shared platform foundations (auth, access control, multi‑tenancy). Ensure production reliability, deployment, testing, observability, and compliance with the company Quality Management System.
Summary Generated by Built In
PlusAI is a Physical AI company pioneering AI-based virtual driver software for factory-built autonomous trucks. Headquartered in Silicon Valley with operations in the United States and Europe, Plus was named by Fast Company as one of the World’s Most Innovative Companies. Partners including TRATON GROUP’s Scania, MAN, and International brands, Hyundai Motor Company, Iveco Group, Bosch, and DSV are working with Plus to accelerate the deployment of next-generation autonomous trucks. If you’re ready to make a huge impact and drive the future of autonomy, Plus is looking for talented individuals to join its fast-growing teams.

Our data and simulation platforms are only as valuable as what people can do with them. In this role, you will own the product surface on top of those platforms — the web applications, APIs, and backend services that autonomy and ML engineers, operations and road-test teams, and external partners use to find data, author and run simulations, and act on the results. You will work across the full stack, from relational data models and Python services to modern TypeScript interfaces, turning ambiguous engineering workflows into tools people rely on every day. We welcome engineers from product, web platform, or developer-tooling backgrounds; prior autonomous-vehicle experience is helpful but not required.

We are open to candidates at either the Software Engineer or Senior Software Engineer level. Level will be determined by experience, technical depth, scope of ownership, and demonstrated impact. You do not need experience with every technology in our stack; we value strong fundamentals, ownership, and the ability to learn.

Responsibilities:
  • Design and ship fullstack applications end to end: Python services and REST APIs, relational data modeling, asynchronous jobs, modern TypeScript frontend interfaces, deployment, testing, observability, and production reliability

  • Build scenario authoring and management tools, including interactive editors for creating, parameterizing, and versioning test scenarios, and reproducible scenario libraries shared across teams

  • Build interfaces for large-scale simulation and drive-log replay: launching and tracking runs, browsing results, comparing regressions across releases, and triaging failures down to individual scenarios

  • Build shared application foundations — authentication, access control, multi-tenancy, and API conventions — that serve internal engineers, operations teams, and external partners from one coherent platform

  • Ensure that your work is performed in accordance with the company's Quality Management System (QMS) requirements and contribute to continuous improvement efforts

Required Skills:

  • BS, MS, or PhD in Computer Science or a related technical field, or equivalent practical experience

  • Production fullstack experience spanning backend services and REST APIs, relational data modeling and SQL, and modern frontend development (e.g., React/TypeScript)

  • Working proficiency in Python for services, libraries, and tooling

  • Ability to work directly with users to turn ambiguous engineering workflows into simple, reliable interfaces

  • Self-driven with a strong sense of ownership: a quick learner who is eager to take responsibility and drive projects forward end to end

Preferred Skills:

  • Experience building interactive or visual web-based tooling, such as canvas, WebGL, Electron, or map- and geometry-based editing

  • Familiarity with Docker, Kubernetes, and CI/CD for deploying and operating web services

  • Experience presenting large datasets, time-series, or log data behind responsive interfaces

  • Experience building user behavior tracking and analysis into web products: instrumenting frontend/backend telemetry, and analyzing usage data to guide product iteration.

  • Experience with autonomous vehicles, robotics, or simulation and scenario-based testing

  • Experience with data visualization at scale

Your opportunities joining PlusAI
Work, learn and grow in a highly future-oriented, innovative and dynamic field.
Wide range of opportunities for personal and professional development.
Catered free lunch, unlimited snacks and beverages.
Highly competitive salary and benefits package, including 401(k) plan.

Skills Required

  • BS, MS, or PhD in Computer Science or related field, or equivalent practical experience
  • Production fullstack experience spanning backend services and REST APIs
  • Relational data modeling and SQL experience
  • Modern frontend development experience (e.g., React and TypeScript)
  • Working proficiency in Python for services, libraries, and tooling
  • Ability to work directly with users to translate workflows into reliable interfaces
  • Self-driven with strong ownership and ability to drive projects end-to-end
  • Experience building interactive or visual web-based tooling (canvas, WebGL, Electron, map/geometry editing)
  • Familiarity with Docker, Kubernetes, and CI/CD for deploying and operating web services
  • Experience presenting large datasets, time-series, or log data in responsive interfaces
  • Experience instrumenting frontend/backend telemetry and analyzing usage data
  • Experience with autonomous vehicles, robotics, simulation, or scenario-based testing
  • Experience with data visualization at scale

Plus Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Plus and has not been reviewed or approved by Plus.

  • Leave & Time Off Breadth Unlimited PTO in addition to company holidays and flexible work arrangements are offered, indicating broad time-off flexibility. This setup signals strong support for taking time away from work.
  • Healthcare Strength Tiered medical, dental, and vision options allow employees to select coverage that fits their needs. This breadth of core health coverage aligns with a comprehensive benefits approach.
  • Wellbeing & Lifestyle Benefits Daily catered lunches at key offices and company-sponsored professional development add meaningful day-to-day and growth-oriented perks. These offerings enhance overall wellbeing and workplace experience.

Plus Insights

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The Company
HQ: Cupertino, CA
471 Employees
Year Founded: 2016

What We Do

Plus is a global provider of highly automated driving and fully autonomous driving solutions. Named by Forbes as one of America's Best Startup Employers and Fast Company as one of the World’s Most Innovative Companies, Plus's customers are already operating its product on the road today. Working with one of the largest companies in the U.S., vehicle manufacturers and others, Plus is making transportation safer and greener. Plus has received a number of industry awards and distinctions for its transformative technology and business momentum from Fast Company, Insider, Consumer Electronics Show, AUVSI, and others. For more information, visit www.plus.ai

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