Senior Applied Machine Learning Engineer - AI Solutions Across Multiple Domains

Bluebird • Hungary
Remote
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AI Summary

Lead modeling and deployment for RL, recommender systems, and CV. Own training to production. Collaborate with teams to deliver impact. Mentor and raise engineering standards.

Key Highlights
Lead ML projects from prototype to production
Collaborate with cross-functional teams
Mentor and raise engineering standards
Key Responsibilities
Design and build training and evaluation pipelines
Deploy policies safely with offline evaluation and gradual rollout strategies
Build candidate generation and ranking stacks for recommender systems
Develop CV pipelines with strong data strategy and metric-driven iteration
Package and deploy models as services
Mentor team members and raise engineering standards
Technical Skills Required
PyTorch TensorFlow Reinforcement Learning Recommender Systems Computer Vision Production Engineering
Benefits & Perks
Competitive salary
Flexible, fully remote work
Opportunity to deepen professional knowledge
Nice to Have
Distributed compute for ML
Advanced RL
Specialized recommender experience
CV at scale
Feature stores
Strong SRE mindset for ML services

Job Description


We are currently looking for a Senior Applied ML Engineer on behalf of one of our partner companies.

Our partner is an innovation-driven company building and deploying AI solutions across Space, Manufacturing, AdTech, and FinTech. They combine state-of-the-art research with robust engineering to solve real-world problems at production scale.


Tasks

  • As a Senior Applied ML Engineer, you will lead modeling and deployment for reinforcement learning/decision optimization, recommender systems, and computer vision. You’ll take systems from prototype to production—owning training, evaluation, deployment, and monitoring—while partnering with engineering and product to deliver measurable impact.
  • Reinforcement learning / decision optimization
  • Design environments and reward functions; build training and evaluation pipelines.
  • Deploy policies safely with offline evaluation, guardrails, and gradual rollout strategies.
  • Recommender systems
  • Build candidate generation + ranking stacks (hybrid approaches, deep ranking, transformer-based recommenders where appropriate).
  • Implement experimentation frameworks and measure impact with strong statistical discipline.
  • Computer vision
  • Develop CV pipelines (classification/detection/segmentation) with strong data strategy and metric-driven iteration.
  • Optimize for real-world constraints (latency, throughput, accuracy, robustness).
  • Productionization
  • Package and deploy models as services; implement monitoring for performance, drift, and data quality.
  • Collaborate with data/platform teams on reliable pipelines, feature computation, and scalable serving.
  • Mentorship & technical leadership
  • Raise engineering standards, review designs, and mentor team members.


Requirements

  • 5+ years applied ML/ML engineering; 2+ years at senior/lead level.
  • Strong PyTorch (preferred) or TensorFlow; ability to debug deep learning training and inference.
  • Demonstrated experience in at least one of the following, with production ownership:
  • Reinforcement learning / contextual bandits / sequential decisioning
  • Recommender systems (ranking, retrieval, hybrid signals, evaluation)
  • Computer vision (end-to-end training + deployment)
  • Solid ML evaluation skills: offline metrics, online experimentation, bias/variance tradeoffs.
  • Production engineering basics: containers, CI/CD, monitoring/alerting, model/version management.
  • Strong understanding of algorithms, data structures, and performance optimization.
  • Preferred / Nice-to-Have
  • Distributed compute for ML: Ray, Spark, or similar large-scale processing/training.
  • Advanced RL: multi-agent RL, distributed RL, offline RL, safe RL deployment patterns.
  • Specialized recommender experience: two-tower retrieval, transformer recommenders, real-time ranking.
  • CV at scale: efficient training, augmentation strategy, edge/real-time inference optimization.
  • Feature stores, streaming/event-driven ML pipelines, and near-real-time decisioning.
  • Strong SRE mindset for ML services (SLOs, dashboards, incident playbooks).


What we offer

  • exciting, diverse AI projects
  • end-to-end project responsibilities
  • competitive salary
  • opportunity to deepen professional knowledge across multiple domains (DL, LLM, CV)
  • flexible, fully remote work opportunity



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