Senior Machine Learning Engineer

We’re on a mission to deliver riveting storytelling for all of America. At The Washington Post, you’ll help reinvent news. Our work is driven by a deep investigative spirit and enhanced by innovation to bring audiences closer to the stories that matter most.

The Washington Post is powered by the passion and talent of our people. It takes all of us to reinvent news. Beyond our award-winning News and Opinions teams, we work across many departments, including Brand & Events, Communications, Customer Care, Engineering & Product, Finance, Human Resources, Legal, Marketing & Advertising, Print Operations, and Sales.

As a senior machine learning engineer, you will design, build, and scale production AI/ML systems that power the next generation of journalism. This role will focus on AI/ML platforms, Ask The Post, search, retrieval, ranking, recommendation, and generative AI-powered reader experiences.

You will work at the intersection of machine learning and software engineering, translating advanced AI/ML research into scalable, low-latency, reliable production systems that serve The Post’s journalism, readers, and business goals.

• You value world-class journalism and want to build technology that strengthens that mission.

• You enjoy turning promising machine learning research and prototypes into scalable production systems.

• You are excited by AI/ML platforms, search, retrieval, ranking, recommendation, generative AI, and high-performance inference.

• You are passionate about performance, reliability, scalability, observability, maintainability, and infrastructure efficiency.

• You communicate clearly, collaborate well, and thrive in a feedback-driven engineering environment.

How You’ll Support The Mission

• Design, build, deploy, and operate production ML systems across generative AI, search, Revenue Science and Personalization.

• Partner with Applied Research Scientists to translate research models and prototypes into scalable, reliable, and maintainable production systems.

• Design and build high-throughput, low-latency ranking and retrieval services supporting real-time personalization, recommendation, search, and intelligent discovery.

• Build and evolve reusable AI/ML platform capabilities for model training, feature generation, experimentation, deployment, inference, model versioning, and monitoring.

• Design and optimize CPU and GPU inference systems for LLMs, embedding models, rerankers, ranking models, and other deep learning workloads.

• Develop scalable online and batch ML architectures for feature pipelines, embedding generation, candidate retrieval, ranking, and model inference.

• Optimize model serving for latency, throughput, reliability, and cost using techniques such as batching, caching, quantization, distillation, and hardware-aware optimization.

• Build and operate production systems for semantic and hybrid search, vector retrieval, retrieval-augmented generation, recommendation, and agentic AI workflows.

• Establish strong ML observability across model quality, data and feature health, latency, throughput, failures, and resource utilization.

• Provide technical leadership through system design, architecture reviews, mentoring, and shaping the technical roadmap for AI/ML platforms and production systems.

The Skills and Experience You Bring

• Bachelor’s degree or greater in Computer Science, Computer Engineering, Machine Learning, or a related technical field, or equivalent practical experience.

• 5+ years of experience in machine learning engineering, software engineering, or building large-scale production ML systems.

• Strong programming skills in Python and experience with a production language such as C++, Java, Go, Scala, or Rust.

• Strong knowledge of software engineering fundamentals, including data structures, algorithms, APIs, distributed systems, testing, and system design.

• Hands-on experience with PyTorch or another modern machine learning framework and deploying deep learning models into production.

• Experience designing and operating end-to-end ML systems, including training, deployment, inference, monitoring, and continuous improvement.

• Strong understanding of low-latency online inference, including CPU/GPU serving, batching, caching, memory utilization, and performance optimization.

• Experience building search, retrieval, ranking, recommendation, GenAI, or related machine learning systems.

• Experience with Kubernetes, Docker, CI/CD, AWS, GCP, Spark, Beam, Kafka, or similar cloud and distributed systems technologies.

• Experience with IaC, such as CloudFormation, CDK, or Terraform.

• Experience mentoring engineers, leading technical projects, and influencing AI/ML platform and architecture roadmaps.

Wherever you are in your life or career, The Washington Post offers comprehensive and inclusive benefits for every step of your journey:

• Competitive medical, dental and vision coverage

• Company-paid pension and 401(k) match

• Three weeks of vacation and up to three weeks of paid sick leave

• Nine paid holidays and two personal days

• 20 weeks paid parental leave for any new parent

• Robust mental health resources

• Backup care and caregiver concierge services

• Gender affirming services

• Pet insurance

• Free Post digital subscription

• Leadership and career development programs

Benefits may vary based on the job, full-time or part-time schedule, location, and collectively bargained status.

The salary range for this position is:

The actual salary within this range will depend on individual skills, experience, and qualifications as they relate to specific job requirements. This position may be eligible for a bonus or incentive program, and a member of the Talent Acquisition team will discuss bonus payment terms and conditions during the interview process.