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Senior Machine Learning Engineer (AI Decisioning)

1 month, 3 weeks ago
Turkey
Full-time
Senior
Machine Learning Engineer
Software Development
AWS CI/CD IPS LLM Machine Learning Microservices Reinforcement Learning
Apply Now
Insider

Insider

Insider offers an AI-powered customer engagement platform designed for marketing teams, integrating customer data platforms, personalization, and journey orchestration to enhance customer interactions across various channels.

Internet Software & Services
Founded 2012
View All Jobs 46

Description

  • Design, build, and release real-time decisioning systems that learn from interaction feedback at scale.
  • Own the modeling logic from user and signal representation through reward attribution and closed-loop improvement.
  • Move online learning policies, counterfactual estimators, and other prototype ideas into production code behind real-time APIs.
  • Design and build resilient streaming and batch pipelines for user state, reward signals, and offline replay.
  • Run A/B tests and offline evaluations to validate shipped systems and compare them against baselines.
  • Continuously monitor and improve system quality, latency, observability, and scalability.
  • Collaborate with platform and product teams to turn research ideas into production-grade products.
  • Share context, mentor engineers, and help raise the technical bar for machine learning at scale.

Requirements

  • Designed and deployed personalization, ranking, or recommendation systems used by real users and can speak to measurable engagement lift.
  • Experience with sequential recommendation, ranking, or joint/multi-objective optimization problems.
  • Experience A/B testing changes and iterating based on results.
  • Comfort working in production ML environments with cold start, sparse signals, label delay, feedback loops, and distribution shift.
  • Solid grounding in probabilistic modeling, including Bayesian inference, calibration, and hierarchical models.
  • Experience with modern recommender techniques such as embeddings, sequence models, and LLM-driven content understanding.
  • Strong software engineering skills and production-quality coding in at least one programming language, with attention to API contracts, testing, and observability.
  • Experience building high-throughput real-time or batch pipelines for ML training and inference on AWS or an equivalent major cloud.
  • Ability to own a service end to end across compute, storage, networking, and CI/CD.
  • Experience moving a model from a paper, notebook, or whiteboard sketch into a production system serving traffic.
  • Hands-on experience with online decision-making under uncertainty, multi-armed bandits, contextual bandits, Thompson sampling, UCB, or RL agents that have served traffic (strong plus).
  • Understanding of exploration vs. exploitation, regret, off-policy evaluation, and counterfactual estimation (strong plus).
  • Experience with causal inference or uplift modeling (strong plus).
  • Academic research experience or publications in online decision-making, reinforcement learning, sequential recommendation, optimization, or related fields (strong plus).

Benefits

  • Monthly meal allowance.
  • Comprehensive private health insurance.
  • Access to learning platforms including Spotify, LinkedIn Learning, Blinkist, MasterClass, Neoskola, and CloudGuru.
  • Internal trainings in AI fundamentals, coding, foreign languages, and personal development skills.
  • Fully remote work from anywhere in Turkey.
  • Eligibility-based ESOP to become a shareowner.
  • Referral bonuses.
  • Volunteering opportunities and purpose-driven social impact projects.
  • Global retreats, team-building activities, and year-round events.
  • Tech & Dev Talks and other industry events.
  • Continuous mentorship and technical coaching.

Interested in this position?

Apply directly on the company website

Apply Now

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