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Senior Software Engineer Full-Stack

United States, Lancaster · Job Posted January 06, 2026
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Job Description

We are looking for a Senior Full-Stack Software Engineer with a background in creating reliable and scalable web applications and web services. This person must understands the fundamentals of modern web technologies and cloud technologies. The person in this role will be designing, implementing, testing, and deploying services and/or features for web based applications and APIs. The role will work collaboratively across multiple teams to gather requirements, validate designs and implementations, and test the resulting deliverables. This role will require to be in office at least 3 days per week.

Job Responsibility

  • Optimize and enhance existing applications and APIs to incorporate new features and user feedback.
  • Design new features and user experiences, including UI elements and layout through mockups (e.g., Figma) and implement such features in React + TypeScript.
  • Research and design new APIs for new use cases and implement such APIs and backend logic using Python, JavaScript/TypeScript, C++.
  • Utilize a variety of AWS technologies such as API Gateway, AWS Lambda, Amazon AppSync, DynamoDB, and Terraform.
  • Interact with a variety of data sources including documents, databases, raw and/or processed sensor data, and other APIs.
  • Collaborate with Software Engineering, Software Quality, and Operations to understand end user requirements.

Requirements

  • Strong technical background as evidenced by BS, MS, or equivalent experience, in Computer Science or a related engineering discipline
  • 5+ years of experience building backend services and/or intuitive web applications with significant scale and performance
  • Solid understanding of HTML, CSS, and related web technologies
  • Recent experience with JavaScript, TypeScript and React
  • Experience with using internal and external facing APIs
  • Experience with app profiling and performance tuning.
  • Experience with service performance measurement, observability, and tuning.
  • Familiarity with web sockets and Typed Arrays
  • Great communicator
  • you must be capable of writing clear, concise, and detailed documentation.
  • Passion
  • you must be passionate about autonomous vehicles and their potential impact on humanity.

Nice to have

  • Bonus for experience with Three.js, Web Workers, protobuf
  • Bonus for experience in designing UIs using collaborative tools
  • Bonus for experience with C++, creating tooling for robotics / timeseries data
  • Bonus for experience with AWS PaaS technologies and services

What we offer

  • Competitive compensation package including equity and annual bonuses
  • Excellent Medical, Dental, and Vision plans through Kaiser Permanente, Cigna, and MetLife (including a medical plan with infertility benefits)
  • MetLife Legal Services, Identity & Fraud Protection, Hospital Indemnity Insurance, Accident Insurance, & Critical Illness Insurance
  • Flexible PTO, 10 paid holidays, and generous parental leave policies
  • Office perks: free catered lunch, a fully stocked kitchen
  • Long Term Disability, Short Term Disability, Life Insurance
  • Wellbeing Benefits - Headspace through Cigna, Calm through Kaiser, One Medical, Gympass, Spring Health through Cigna, Rula (mental health navigation)
  • Fidelity 401(k)
  • Commuter, FSA, Dependent Care FSA, HSA
  • Various incentive programs (referral bonuses, patent bonuses, etc.)

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