Lead ML/AI Engineer

Toyota Deutschland GmbH; Plano (TX); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

Tuition reimbursement

Team Member Vehicle Purchase Discount

Relocation assistance

Job summary

Toyota Financial Services in the United States is seeking a Lead Engineer in ML/AI to ship production-grade intelligent systems on AWS. You will own end-to-end ML features from data and model design to deployment and monitoring.

The role requires strong ML fundamentals, hands-on experience with LLMs, PyTorch/TensorFlow, and MLOps. You will mentor engineers, collaborate with product and data teams, and drive reliable AI-powered capabilities.

Qualifications

• Bachelor's degree in Computer Science, Machine Learning, Statistics, or related field
• 5+ years of software engineering experience, including 2–4 years focused on ML/AI in production
• Solid understanding of machine learning fundamentals: supervised and unsupervised learning, deep learning architectures, optimization techniques, and evaluation methodologies
• Hands-on experience with large language models: prompt engineering, RAG pipelines, embedding models, vector databases, and agent frameworks
• Experience working with AWS AI/ML services, including Amazon Bedrock and SageMaker
• Strong proficiency in Python— production-quality ML code
• Experience with core ML frameworks: PyTorch, TensorFlow, or JAX, and libraries like Hugging Face Transformers
• Familiarity with MLOps practices: MLflow, W&B, model registries, CI/CD for ML
• Experience with data engineering fundamentals: ETL, feature stores, validation
• Infrastructure as Code for ML: AWS CDK, CloudFormation, or Terraform
• Observability and monitoring for ML: model performance, data drift, alerts
• Clear communicator — discuss model tradeoffs and decisions with teammates

Responsibilities

• Design, build, and maintain end-to-end ML pipelines from data ingestion to deployment and monitoring
• Lead the integration of large language models into product features, including prompt engineering and RAG
• Select and apply approaches for each problem: Bedrock, SageMaker, or hybrid methods
• Own ML features from design through deployment, including testing and post-launch monitoring
• Participate in technical design discussions and tradeoff analyses across ML architecture
• Debug and troubleshoot complex ML systems, including data quality and latency issues
• Write production-quality ML code and participate in code reviews
• Mentor junior engineers through pairing, reviews, and knowledge sharing
• Collaborate with Product, Data Science, and Engineering to deliver AI-powered features
• Identify data quality gaps and ML debt proactively

Skills

Python

ML fundamentals

Communication

Education

Bachelor's degree in Computer Science or related field

Master's degree in Machine Learning or related field

Tools

PyTorch

TensorFlow

JAX

Hugging Face Transformers

SageMaker

Bedrock

Lambda

S3

OpenSearch

MLflow

W&B

Terraform

Job description

Overview

Who we are

Collaborative. Respectful. A place to dream and do. These are just a few words that describe what life is like at Toyota. As one of the world’s most admired brands, Toyota is growing and leading the future of mobility through innovative, high-quality solutions designed to enhance lives and delight those we serve. We’re looking for talented team members who want to Dream. Do. Grow. with us.

An important part of the Toyota family is Toyota Financial Services (TFS), the finance and insurance brand for Toyota and Lexus in North America. While TFS is a separate business entity, it is an essential part of this world-changing company- delivering on Toyota's vision to move people beyond what's possible. At TFS, you will help create best‑class customer experience in an innovative, collaborative environment.

Toyota does not offer support or sponsorship of job applicants for employment-based visas or any other workauthorization for this role now or in the future. You must have the right to work in the United States and not requireToyota 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 thefuture. You should not apply for this role if you will require Toyota to assist with immigration support or sponsorshipnow 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 Lead Engineer in ML/AI — an individual contributor who combines strong machine learning fundamentals with the engineering discipline to ship production‑grade intelligent systems on AWS.

You're past the point of running experiments in notebooks. You think end‑to‑end: from data and model design to deployment and monitoring, and you help the team move faster by raising the quality and reliability of every ML system you touch. You're starting to shape technical direction, not just execute it — and you're ready to be the go‑to person on your team for applied AI.

What you'll be doing

• Design, build, and maintain end-to-end ML pipelines — from data ingestion and feature engineering to model training, evaluation, deployment, and monitoring
• Lead the integration of large language models into product features, including prompt engineering, retrieval‑augmented generation (RAG), and agent‑based patterns
• Select and apply the right approach for each problem: foundation models viaAmazon Bedrock, custom training onSageMaker, classical ML, or hybrid approaches
• Take ownership of ML features from design through deployment — including testing, observability, and post‑launch monitoring
• Participate actively in technical design discussions, contributing well‑reasoned proposals and tradeoff analysis across ML architecture and tooling choices
• Debug and troubleshoot complex issues across ML systems — from training instabilities and data pipeline failures to inference latency and model drift
• Write clean, production-quality ML code and hold a high bar in code reviews
• Mentor junior and mid‑level engineers through pairing, code reviews, and knowledge sharing on ML/AI topics
• Collaborate with Product, Data Science, and Front‑End/Backend Engineering teams to deliver AI‑powered features
• Identify and address data quality gaps, model reliability issues, and ML‑specific tech debt proactively

What you bring

• Bachelor's degree in Computer Science, Machine Learning, Statistics, or related field, or equivalent practical experience
• 5+ years of software engineering experience, including 2–4 years focused on ML/AI in production
• Solid understanding ofmachine learning fundamentals: supervised and unsupervised learning, deep learning architectures (transformers, CNNs, RNNs), optimization techniques, and evaluation methodologies
• Hands‑on experience withlarge language models: prompt engineering, RAG pipelines, embedding models, vector databases, and agent frameworks (LangChain, LlamaIndex, or similar)
• Experience working withAWS AI/ML services, including: Amazon Bedrockfor foundation model access and knowledge bases, orAmazon SageMakerfor model training, hosting, and MLOps pipelinesLambdaandStep Functionsfor orchestrating inference workflowsS3for data storage and model artifact managementEventBridge,SQS, orSNSfor event‑driven ML pipelinesOpenSearchor similar for vector search and semantic retrieval
• Strong proficiency inPython— you write production‑quality ML code, not just notebooks
• Experience with core ML frameworks:PyTorch,TensorFlow, orJAX, and libraries like Hugging Face Transformers, scikit‑learn, and XGBoost
• Familiarity withMLOps practices: experiment tracking (MLflow, W&B), model registries, and CI/CD for ML workflows
• Experience withdata engineeringfundamentals: ETL pipelines, feature stores, data validation, and working with structured and unstructured data
• Understanding ofInfrastructure as CodeusingAWS CDK, CloudFormation, or Terraform for ML infrastructure
• Experience withobservability and monitoringfor ML systems: model performance tracking, data drift detection, and alerting
• Clear communicator — comfortable discussing model tradeoffs and technical decisions with teammates and stakeholders

Added bonus if you have

• Master's degree in Machine Learning, AI, Computer Science, Statistics, or related field
• Experience in the financial services, banking, or insurance industry
• Experience withresponsible AI: fairness metrics, bias detection, explainability (SHAP, LIME), and model governance
• Familiarity withNLPbeyond LLMs (named entity recognition, document understanding, OCR)
• Exposure toreal‑time inferenceoptimization: quantization, distillation, ONNX, or latency‑sensitive serving
• Experience withcontainerized ML workloads(ECS Fargate, Docker) for training and serving
• Exposure tocomputer visionormulti‑modalarchitectures combining text, image, and structured data
• Familiarity withGraphQLor API gateway patterns for exposing ML services to backend consumers
• AWS certifications (Machine Learning Specialty, Developer Associate, or Cloud Practitioner)
• Experience contributing to open‑source ML projects

What we’ll bring

During your interview process, our team can fill you in on all the details of our industry‑leading benefits and careerdevelopment opportunities. A few highlights include:

• A work environment built on teamwork, flexibility, and respect
• Professional growth and development programs to help advance your career, as well as tuition reimbursement
• Team Member Vehicle Purchase Discount
• Toyota Team Member Lease Vehicle Program (if applicable)
• Comprehensive health care and wellness plans for your entire family
• Toyota 401(k) Savings Plan featuring a company match, as well as an annual retirement contribution from Toyotaregardless of whether you contribute (if applicable)
• Paid holidays and paid time off
• Referral services related to prenatal services, adoption, childcare, schools and more
• Tax Advantaged Accounts (Health Savings Account, Health Care FSA, Dependent Care FSA)
• Relocation assistance (if applicable)

Belonging at Toyota

Our success begins and ends with our people. We embrace all perspectives and value unique human experiences. Respect for all is our North Star.

Applicants for our positions are considered without regard to race, ethnicity, national origin, sex, sexual orientation, gender identity or expression, age, disability, religion, military or veteran status, or any other characteristics protected by law.

Have a question, need assistance with your application or do you require any special accommodations? Please send an email to [e-mail].