Avshalom Manevich
Research Engineer · Paris
About
I work at the intersection of research and production, making large multimodal models fast, efficient, and reliable to serve. I'm currently the inference team lead at H Company, where I build the serving stack behind the Holo vision-language models and the Surfer computer-use agents.
Before that, I worked on production LLM inference and the Jamba family of hybrid Transformer–Mamba models at AI21 Labs, and did research at Amazon's Alexa Shopping group and the Bosch Center for AI. My research at Bar-Ilan University's NLP lab focused on decoding-time methods for reducing hallucinations in vision-language models. Underneath it all is a decade of distributed-systems and data engineering.
Experience
- H Company — Core Team Member, Inference Team Lead · May 2025 – present · Paris Multimodal LLM inference, reinforcement-learning post-training, and agentic serving for computer-use agents.
- AI21 Labs — Deep Learning Engineer · Dec 2023 – Jun 2025 Core serving team: efficient, robust, fast LLM inference in production, combining algorithmic research with systems engineering. Contributor to the Jamba model family.
- Amazon — Applied Scientist Intern · Sep 2022 – Feb 2023 NLP research at the Alexa Shopping group; published at EMNLP 2023.
- Bosch Center for AI — AI Research Intern · Mar 2021 – Jul 2021 Deep reinforcement learning for robotics.
Earlier Software Engineering
- CommonGround-AI — Software Engineer · 2021 – 2023 Large-scale data ingestion and processing infrastructure.
- Dynamic Yield — Big Data Engineer → Team Lead → Architect · 2015 – 2020 High-throughput realtime data systems (Spark, Kafka, Flink); led a team of engineers.
- Dell EMC — Software Engineer · 2012 – 2015 Data-replication product in C and C++, kernel and user space.
Education
- Bar-Ilan University — MSc, Computer Science · 2020 – 2025 Cum laude. NLP research with the BIU NLP lab on decoding-time hallucination mitigation in vision-language models.
- Nebius Academy (Y-DATA) — Data Science & Machine Learning · 2019 – 2020
- Ben-Gurion University of the Negev — BSc, Computer Science, minor in Linguistics · 2010 – 2014 Cum laude.
Selected Publications & Writing
- Booting Fast and Slow: or How We Learned to Stop Worrying and Love the Cold Start
- Jamba: Hybrid Transformer-Mamba Language Models
- Surfer 2: The Next Generation of Cross-Platform Computer Use Agents
- Surfer-H Meets Holo1: Cost-Efficient Web Agent Powered by Open Weights
- Making LVLMs Look Twice: Contrastive Decoding with Contrast Images
- Jamba-1.5: Hybrid Transformer-Mamba Models at Scale
- Mitigating Hallucinations in Large Vision-Language Models via Language-Contrastive Decoding
- Multi-Document Summarization Evaluation in the Presence of Damaging Content
- Description-Based Text Similarity
- Draw Me a Flower: Processing and Grounding Abstraction in Natural Language