Senior Research Engineer

Mem0

$130K — $180K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 5-7 years of experience in RAG or information retrieval for real-world applications.
  • Proficient in model training and fine-tuning, focusing on LLMs and experimental design.
  • Strong programming skills in Python with substantial experience in PyTorch.
  • Experience in building evaluations for complex vision-and-language tasks.
  • Ability to orchestrate data pipelines for low-latency model production.
  • Effective communication skills tailored to diverse stakeholders.

Responsibilities

  • Fine-tune and train memory models focusing on extraction, updates, and conflict resolution.
  • Translate customer pain points into actionable research hypotheses.
  • Prototype and benchmark research ideas against existing solutions.
  • Establish and execute large-scale evaluation metrics and clear dashboards.
  • Collaborate with Engineering to launch APIs and maintain high performance standards.

Benefits

  • Opportunity to work on cutting-edge memory features and AI models.
  • Flexible work environment with real-world impact on product development.
  • Collaboration with a multidisciplinary team including engineers and researchers.
  • Access to resources for personal and professional growth.
Full Job Description
Role Summary:

Own the end-to-end lifecycle of memory features-from research to production. You'll fine-tune models for extraction, updates, consolidation/forgetting, and conflict resolution; turn customer pain points into research hypotheses; implement and benchmark ideas from papers; and ship with Engineering to SOTA latency, reliability, and cost. You'll also build evaluation at scale (offline metrics + online A/Bs) and close the loop with real-world feedback to continuously improve quality.

What You'll Do:
  • Fine-tune and train models for memory extraction, updates, consolidation/forgetting, and conflict resolution; iterate based on data and outcomes.
  • Read, reproduce, and implement research: quickly prototype paper ideas, benchmark against baselines, and productionize what wins.
  • Build evaluation at scale: automated relevance/accuracy/consistency metrics, gold sets, online A/B & interleaving, and clear dashboards.
  • Work closely with customers to uncover pain points, turn them into research hypotheses, and validate solutions through field trials.
  • Partner with Engineering to ship: design APIs and data contracts, plan safe rollouts, and maintain SOTA latency, reliability, and cost at scale.

Minimum Qualifications
  • Experience in RAG or information retrieval (retrieval, ranking, query understanding) for real products.
  • Model training/fine-tuning experience (LLMs/encoders) with a strong footing in experimental design and iteration.
  • Strong Python; deep experience with PyTorch and familiarity with vLLM and modern serving frameworks.
  • Built evaluation for complex vision-and-language tasks (gold sets, offline metrics, online tests).
  • Able to orchestrate data pipelines to run these models in production with low-latency SLAs (batch + streaming).
  • Clear, concise communication with stakeholders (engineering, product, GTM, and customers).

Nice to Have:
  • Publications at venues like CVPR, NeurIPS, ICML, ACL, etc.
  • Experience with privacy-preserving ML (redaction, differential privacy, data governance).
  • Deep familiarity with memory/retrieval literature or prior work on memory systems.
  • Expertise with embeddings, vector-DB internals, deduplication, and contradiction detection.

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