Source Job

Global

  • Fine-tuning pre-trained LLMs on small to medium datasets.
  • Implementing parameter-efficient fine-tuning (e.g., LoRA-style methods).
  • Optimising training for cost and performance.

Python PyTorch TensorFlow

14 jobs similar to AI Researcher

Jobs ranked by similarity.

  • Design, build, and deploy the critical small language models that are foundational to Fastino’s product.
  • As an engineer, you will own the full lifecycle of our state of the art models, from prototyping and data analysis to deployment and monitoring.
  • Drive the data strategy to continuously improve model performance by analyzing distribution gaps and contributing to synthetic data pipelines.

Fastino is building the next generation of LLMs, with a team of alumni from Google Research, Apple, Stanford, and Cambridge. They have raised $25M through their seed round and are backed by leading investors including Microsoft, Khosla Ventures, and Insight Partners.

Global

  • Experiment with novel language model architectures, helping drive and execute Fastino's research roadmap
  • Optimize Fastino’s multimodal models to improve response quality, instruction adherence, and overall performance metrics
  • Architect data processing pipelines, implementing filtering, balancing, and captioning systems to ensure training data quality across diverse content categories

Fastino is building the next generation of LLMs. Their team, boasting alumni from Google Research, Apple, Stanford, and Cambridge, is on a mission to develop specialized, efficient AI and has raised $25M through their seed round.

Global 4w PTO

  • Architect the system and mentor the team, spend significant time hands-on in the codebase.
  • Drive our strategy for SFT and RLHF/DPO; oversee the sourcing, labeling, and cleaning of diverse datasets.
  • Design and train custom classifiers to detect and filter non-consensual or illegal content within an explicit environment.

EverAI is building the future of AI companionship, creating entirely new categories. They have 40 million users and are aiming for 100M and then 500M, consisting of an enthusiastic, passionate and hardworking team of 75 people.

Europe North America 7w PTO

  • Profile large-scale training workloads and identify communication and computation bottlenecks.
  • Custom kernel development to improve training performance.
  • Enhance and maintain our training and inference codebases.

Poolside aims to be the company that builds a world where AI powers economically valuable work and scientific progress. Their team is a multidisciplinary blend of research, engineering, and business experts distributed across Europe and North America, fostering a culture of collaboration and hard work.

$159,300–$202,400/yr
US Unlimited PTO

  • Develop performant, scalable, and high quality APIs and backend processes for Ostro's SaaS platform, with a strong emphasis on LLM integration.
  • Collaborate with cross-functional teams to implement new features and refine existing ones, particularly those involving AI/LLM capabilities.
  • Ensure code quality and compliance through thorough reviews, unit testing, and adherence to best practices for LLM-powered applications and Ostro engineering.

Ostro is transforming how life sciences connect with the people who need their innovations most. They are a remote-first team united by curiosity, honesty, and a shared passion for improving healthcare.

North America Europe Asia

  • Build and productionize LLM and NLP models across retrieval, summarization, classification, and generative tasks.
  • Design and implement scalable ML services and inference pipelines in Python using modern ML frameworks.
  • Translate complex NLP and LLM product requirements into structured engineering plans with clear milestones.

Loopio provides a workplace that recognizes the advantages of working flexibly, operating as a remote-first company. They have established hub regions around the world and foster a supportive culture with opportunities for connection.

Europe

  • Shape the future of AI-powered search across all OLX verticals.
  • Lead the design and evolution of OLX’s Search AI Platform, developing LLM- and GenAI-based systems.
  • Prototype, evaluate, and productionize new ML models, including embedding-based retrieval, personalization, and relevance optimization.

OLX is building a more sustainable world through trade, making it safe and convenient to buy and sell cars, find housing, get jobs, and buy and sell household goods. They serve millions of people around the world every month through consumer brands including OLX, Otodom, AutoTrader, Property24.

Global

  • Develop, train, fine-tune, and deploy machine learning models.
  • Work with Large Language Models (LLMs), Retrieval-Augmented Generation (RAG) Systems, NLP, and computer vision.
  • Design and develop RESTful APIs for AI model deployment using Flask or FastAPI.

Jobgether is a platform that partners with companies to connect them with talent. They use an AI-powered matching process to ensure applications are reviewed quickly and fairly.

US

  • Build, maintain, and scale document ingestion + processing pipelines.
  • Integrate and productionize LLM-powered workflows.
  • Improve accuracy, reliability, and cost/performance of models and pipelines.

They are building the AI-native operating system for litigation. Their platform turns chaos into knowledge graphs to provide a lasting edge in high-stakes litigation.

  • Design and deploy high-performance agentic systems that leverage Fastino’s optimized model architectures.
  • Collaborate with engineering teams to turn novel architectural breakthroughs into scalable solutions for enterprise customers.
  • Drive rapid, iterative prototyping of AI functionalities, refining model performance and task-accuracy based on real-world telemetry.

Fastino is building the next generation of LLMs with a team of alumni from Google Research, Apple, Stanford, and Cambridge and has developed the GLiNER family of open source models. Fastino has raised $25M through seed round and is backed by leading investors including Microsoft, Khosla Ventures, and Insight Partners.

US

  • Build and implement RAG pipelines, including document chunking, embedding generation and retrieval logic.
  • Integrate and maintain LLM APIs such as Claude, including streaming responses, tool calling.
  • Develop agent orchestration logic to route user requests to appropriate specialist agents.

Craftsman+ is a global team building tools that help brands and teams produce world-class creative faster and at scale. Recognized by Inc. 5000 and Deloitte Fast 500, the company operates at the intersection of creativity and technology, delivering creative services for iconic brands.

$112,125–$186,875/yr
US

  • Work with subject matter experts to curate, generate, and annotate data, and create optimal datasets.
  • Develop and tune Machine Learning models, following best practices to select datasets, architectures, and model parameters.
  • Write clean, efficient, and modular code, with automated tests and appropriate documentation.

Turnitin partners with educational institutions to promote honesty, consistency, and fairness across all subject areas and assessment types. They are a global organization with team members in over 35 countries that embraces diversity, respects local cultures, and has a remote-centric culture.

  • Designing and developing the core platform that enables the efficient deployment, scaling, and management of LLMs and multi-agent systems.
  • Building specialized infrastructure to support long-running agentic workflows, including state management, tool-calling interfaces, and complex reasoning loops.
  • Scaling inference for LLMs to handle global demand while optimizing for latency, throughput, and cost.

Clarity AI is a global tech company founded in 2017 with a unique mission: bringing societal impact to markets. They leverage AI and machine learning technologies to provide top international investors, governments, companies, and consumers with the right data, methodologies, and tools to make more informed decisions. They are now a team of more than 300 highly passionate and curious individuals from all over the world.

US

  • Design and execute advanced AI/ML models for integration into internal tooling and external client-facing products.
  • Lead experimentation efforts: define hypotheses, design interpretable tests, analyze results, and communicate findings effectively.
  • Serve as the technical SME for GenAI/LLM-powered tools, from foundational architecture to model optimization and deployment.

Truelogic is a leading provider of nearshore staff augmentation services headquartered in New York, delivering top-tier technology solutions to companies of all sizes. Their team of 600+ highly skilled tech professionals, based in Latin America, drives digital disruption by partnering with U.S. companies.