Senior Software Engineer

Overview

Who we are

Toyota does not offer support or sponsorship of job applicants for employment-based visas or any other work authorization for this role now or in the future. You must have the right to work in the United States and not require Toyota support or sponsorship for immigration-related employment (e.g., H-1B, O-1, E-3, H-1B1, TN, F-1 OPT, F-1 STEM OPT, F-1 CPT, ‘job flexibility benefits’ [also known as I-140 or Adjustment of Status portability], etc.) now or in the future. You should not apply for this role if you will require Toyota to assist with immigration support or sponsorship now or in the future

Who we're looking for

At TFS, we're building next-generation products that redefine mobility for millions of customers worldwide. We're looking for a Sr Software Engineer — an individual contributor who brings deep backend expertise, strong full-stack instincts, and the technical chops to deliver high-quality systems end to end.

This role is for an engineer who thrives in the code: the one who builds reliable services, debugs the hard problems, contributes to architecture discussions, and consistently raises the quality bar for the team. You'll work closely with your team, take ownership of complex features, and help shape how we build software.

This position is based in Plano, TX. The selected candidate will be expected to reside within a commutable distance of this location.

Key Responsibilities

• Design, build, and maintain full-stack features — from APIs and serverless services to the data models and event-driven workflows that power them

• Lead technical design reviews, architecture discussions, and RFC processes — driving alignment across engineering teams

• Identify and resolve systemic issues: performance bottlenecks, reliability gaps, scaling constraints, and tech debt that slows teams down

• Own complex debugging and troubleshooting across the full stack — from API latency to infrastructure misconfigurations to distributed system failures

• Follow and contribute to engineering best practices: code quality, testing strategies, observability, and deployment safety

• Collaborate closely with Engineering Managers, Product, and Front-End Engineering to shape roadmaps and ensure technical feasibility

• Proactively communicate technical risks, tradeoffs, and recommendations to both engineering and non-technical stakeholders

What you bring

• Bachelor's degree in Computer Science or related field, or equivalent practical experience

• 5+ years of software engineering experience with a strong backend or full-stack focus

• Deep expertise in designing and building serverless architectures on AWS, including:

  • Lambda for compute

  • API Gateway (REST and HTTP APIs) for service exposure

  • DynamoDB or Aurora Serverless for data persistence

  • Step Functions or other workflow orchestration tools

  • EventBridge, SQS, or SNS for event-driven and async communication

  • S3 for object storage and data lake patterns

  • CloudFront for API acceleration and edge caching

• Strong proficiency in TypeScript and/or Python for backend services — you default to production-quality code and advocate for it across the codebase

• Proven ability to design, build, and maintain RESTful and GraphQL APIs, including API contract design, versioning, error handling, and type-safe tooling (e.g., OpenAPI, GraphQL Code Generator, tRPC)

• Solid understanding of Infrastructure as Code using AWS CDK, CloudFormation, or Terraform

• Experience with observability and monitoring tooling: CloudWatch, X-Ray, Datadog, or similar — you know ho