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Cognism

B2B sales intelligence with CRM integration

Senior Machine Learning Operations Engineer

Applied Machine LearningUpdated on Nov 10
Full-timeWarsaw, PolandNo salary listedIn-person

About the Job

Requirements

  • Strong understanding of AWS cloud architecture and services.
  • Experience deploying and monitoring classical machine learning models in production on AWS.
  • Good understanding of modern MLOps best practices.
  • Good understanding of core machine learning fundamentals, including classical model training, evaluation, and feature engineering.
  • Experience serving models in production via a model-serving runtime such as ONNX Runtime, NVIDIA Triton, TorchServe, or similar.
  • Experience with vector databases or approximate-nearest-neighbor search, such as Milvus, FAISS, pgvector, or similar.
  • Good understanding of data engineering fundamentals.
  • Experience with Infrastructure as Code, such as Terraform or AWS CDK.
  • Experience with CI/CD pipelines, such as GitHub Actions or CircleCI.
  • Basic understanding of networking and security practices on cloud.
  • Experience with containerization, such as Docker, AWS ECS, or Kubernetes.
  • Proficiency reading and writing Python code.
  • Experience with API deployment frameworks such as FastAPI.
  • Fluency in English.
  • At least 3 years in an MLOps, Machine Learning Engineer, or DevOps role is ideal, not required.

Responsibilities

  • Build and manage automation pipelines to operationalize the machine learning platform, model training, and model deployment on AWS.
  • Design and implement architectures, services, and pipelines on AWS that are secure, reliable, scalable, and maintainable.
  • Operate, maintain, and evolve traditional machine learning systems in production, including gradient-boosted tree models, embedding-based matching, fine-tuned transformer classifiers, and classic NLP pipelines running on serving and data infrastructure and some LLM-based workflows.
  • Contribute to MLOps best practices within the Science and Data team.
  • Act as a bridge between AI, Engineering, and DevSecOps for machine learning deployment, monitoring, and maintenance.
  • Work closely with Data Scientists to provide tooling and integrate machine learning models into larger systems and applications.
  • Monitor and maintain production-critical machine learning services and workloads at scale.

Desired Qualifications

  • Ability to design and implement cloud solutions and build MLOps pipelines in AWS.
  • Good understanding of software development principles and DevOps methodologies.
  • Experience with MLOps concepts including experiment tracking, model registry and versioning, and model and data drift monitoring.
  • Experience working with GPU-based computational frameworks and cloud architectures such as AWS or GCP.
  • Knowledge of MLOps and DevOps tools such as Kubeflow, Metaflow, Airflow, visualization tools such as Grafana or QuickSight, monitoring tools such as Coralogix or Grafana Cloud, and the ELK stack (Elasticsearch, Logstash, Kibana).
  • Experience working in big data domains at 10M+ scales.
  • Experience with streaming and batch-processing frameworks.
  • Experience with MLOps platforms such as NVIDIA Triton, SageMaker, Vertex AI, Databricks, or other platforms.
  • Knowledge of frameworks such as scikit-learn, Keras, PyTorch, or TensorFlow.
  • Experience with SQL, NoSQL databases, and data lakehouse.

About the Company

Cognism

B2B sales intelligence with CRM integration

Cognism provides B2B sales intelligence by giving on-demand access to person and company data to help sales and marketing teams connect with other businesses. It integrates with CRM and sales engagement platforms like Salesforce, HubSpot, SalesLoft, and Outreach, so users can access accurate data directly in the tools they already use. The platform also uses buyer intent signals to indicate when potential clients may be ready to buy, enabling earlier engagement. Cognism aims to increase the efficiency of sales teams by speeding up prospect research and reducing bad data, claiming to boost live conversations significantly. Unlike consumer-focused services, Cognism targets businesses with data that supports business-to-business connections and partnerships across EMEA, NAM, and APAC.

Company size
201-500
Company stage
Series C
Total funding
$128.8M
Headquarters
London, United Kingdom
Founded
2015

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