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Photon

Builds custom software and AI for big companies

AI/ML Engineer

Applied Machine LearningConfirmed live in the last 24 hours
Full-timeUnited StatesIn-person

About the Job

Requirements

  • Strong experience implementing supervised, unsupervised, and deep learning techniques in production environments.
  • Expert-level Python proficiency, including NumPy, Pandas, and Scikit-learn.
  • Experience with TensorFlow or PyTorch.
  • Experience building APIs with FastAPI or Flask.
  • Hands-on experience with large language model frameworks such as LangChain or LlamaIndex.
  • Understanding of prompt engineering, retrieval-augmented generation, and vector search systems.
  • Familiarity with OpenAI, Gemini, Anthropic models, or open-source alternatives.
  • Experience with big data tools such as Spark or Hadoop.
  • Strong SQL skills and working knowledge of data warehouses.
  • Experience with vector databases such as Pinecone, Weaviate, Milvus, or Chroma.
  • Experience with Docker, Kubernetes, and continuous integration/continuous delivery pipelines.
  • Experience with model serving frameworks such as MLflow, SageMaker, or Vertex AI.
  • Experience with monitoring tools for model performance and drift.
  • Strong understanding of system design, scalability, and clean coding principles.
  • Experience building production-ready systems rather than prototypes.

Responsibilities

  • Design, develop, and deploy scalable machine learning models and pipelines, from data ingestion and feature engineering through model training, evaluation, and production deployment.
  • Apply classical machine learning, deep learning, and large language model techniques to solve structured and unstructured data problems across domains.
  • Build and integrate large language model-powered features, including retrieval-augmented generation pipelines, intelligent agents, and workflow automation using modern frameworks.
  • Establish model operations practices, including versioning, continuous integration and delivery for models, continuous training, monitoring, and drift detection.

Desired Qualifications

  • Experience with Agentic AI systems and orchestration frameworks such as LangGraph, CrewAI, or AutoGen.
  • Knowledge of fine-tuning techniques such as LoRA, QLoRA, and transfer learning.
  • Experience designing real-time machine learning systems or recommendation engines.
  • Exposure to multimodal models involving text, image, or audio.
  • Contributions to open-source projects or a strong GitHub portfolio.
  • Experience mentoring junior engineers and leading technical initiatives.

About the Company

Photon

Builds custom software and AI for big companies

Photon designs, builds, and runs custom software for large companies, combining an in-house creative agency with its own engineering teams. Its flagship client work includes rebuilding Samsung's US online store as a set of smaller linked services and creating Olive Garden's mobile app, which lets diners join the waitlist from their phones instead of waiting at the door. Clients hire Photon's teams to plan and code their apps, websites, and AI tools and to keep them running afterward, paying for the engineers and designers assigned to each project. Photon is privately held and based in London, with its US arm in Dallas and engineering centers in Chennai and Bengaluru.

Company size
5,001-10,000
Company stage
Not listed
Total funding
Not listed
Headquarters
London, United Kingdom
Founded
Not listed

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