LLM Engineer Jobs

Anthropic

The Encodings Infra team at Anthropic maintains the libraries that engineers and researchers use to encode text and multimodal data for Claude. This team also defines Claude's prompt structure, including how user turns are represented and how Claude interacts with tools. As a Software Engineer on this team, you will be responsible for the design and upkeep of these libraries, ensuring their APIs are intuitive, performance is optimized, and abstractions are robust. Your work will span across various systems, from pretraining to finetuning and the API, requiring close collaboration with researchers and engineers to facilitate the rapid transition of new encoding ideas from experimentation to production.

$320k - $405k

PALO IT is seeking an AI Native Tech Lead/Architect in CDMX to lead the technical delivery of full-stack solutions. This role involves guiding teams towards scalable, secure, and maintainable implementations, bridging business objectives with software architecture and engineering delivery. You will establish engineering standards, ensure solutions align with client needs, and drive the adoption of PALO IT's AI-first engineering methodology, Gen-e2™, to enhance productivity and quality. The position requires a blend of hands-on technical expertise and leadership, collaborating with clients and engineering teams to integrate AI-assisted development into software delivery.

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Fin, now part of Salesforce, is seeking Staff Product Engineers to join the AI Group and build Fin's AI-powered products. This role involves working closely with ML Scientists and product teams to define new ML features, research algorithms, and rapidly prototype solutions for customers. The team is highly product-focused, partnering with Product and Design to bring AI-powered product experiences to life and ship them to beta within weeks. Engineers will contribute to all phases of software development, from ideation to implementation and testing, while also playing a key role in mentoring other engineers and raising technical standards within the group.

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Fin, now part of Salesforce, is seeking Senior Product Engineers to join their AI Group to build Fin's AI-powered products. Product Engineers in this role will work closely with ML Scientists and product teams, deeply understanding the product, customers, and the ML tech stack. The group is responsible for defining new ML features, researching algorithms and technologies, and rapidly prototyping for customer hands-on experience. This is a product-focused team that partners with Product and Design functions, enabling fast production cycles, often shipping to beta in weeks. They are passionate about applying machine learning, having productized everything from classic supervised models to novel applications of transformer neural networks, measuring real customer impact for each deployed model.

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Fin, now part of Salesforce, is seeking a Senior Product Engineer to join their multidisciplinary product teams. In this role, you will solve real customer problems by applying your technical knowledge to build both back-end and front-end systems. You will work closely with designers, product managers, researchers, and data analysts to address exciting scaling challenges and build a robust platform. This is an opportunity to contribute to the future of customer experience by leveraging AI and driving innovation in a fast-paced environment.

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WorldQuant is seeking an exceptionally talented AI Scientist to join its Artificial Intelligence team. This role involves conducting research in Machine Learning to enhance the investment pipeline, producing trading or predictive signals using innovative algorithms, and applying LLM-based agentic technology to develop and test new trading strategies. The position also includes implementing signal compression and combination techniques, designing deep learning architectures, and developing model frameworks for investment professionals. The successful candidate will collaborate closely with portfolio managers and researchers to optimize machine learning algorithms and communicate complex concepts effectively.

$150k - $200k

Pika

Pika is building the next generation of AI creative tools to make video creation seamless, intuitive, and accessible to everyone. We are seeking a Principal Product Engineer to lead the technical vision, architecture, and roadmap for user-facing systems. In this high-impact role, you will guide the engineering direction for features serving millions of creative users, from intuitive UIs and collaboration tools to real-time interactions and advanced generative AI experiences. You will work closely with product, design, and engineering leadership to deliver robust, scalable, and delightful features, influencing both immediate user experience and long-term product vision from conception to launch and iteration.

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Reflection ai

Reflection is a research lab dedicated to making intelligence open and accessible. We build open models that empower individuals to control their AI and shape its future. This role focuses on designing and operating large-scale multilingual data pipelines, ensuring the quality and effectiveness of data used for training advanced language models. You will contribute to scientific experiments aimed at improving multilingual data efficiency in large language models and develop evaluation sets to identify and address model performance gaps across different languages and domains.

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Parallel Wireless is seeking a hands-on technical leader to build and operate a secure local large-language-model (LLM) platform. This platform will enable engineering and business teams to leverage generative AI with proprietary company data, including source code, product documentation, and technical standards, all within a secure, company-controlled environment. This senior individual contributor role involves applied LLM engineering, platform architecture, data pipelines, security, and production operations. You will transform prototypes into a dependable internal capability by selecting and optimizing open-weight models, building permission-aware retrieval systems, creating reusable APIs and tools, integrating with existing workflows, and establishing metrics for quality, safety, latency, capacity, and business value. The role emphasizes building a trustworthy enterprise LLM solution that includes robust source grounding, access controls, repeatable evaluation, observable services, and a sustainable operating model.

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Anthropic

The Safeguards ML Sampling Path team builds and operates the production services that power Claude's safety systems. These services are critical, sitting on the token generation path across every platform Claude runs on. You will be responsible for keeping p99 latency flat as traffic grows, building for robustness against dependency failures, and safely shipping changes to a system that cannot go down. This role requires a strong foundation in distributed systems and a focus on designing systems for graceful degradation.

$320k - $485k

PALO IT is seeking a Software Architect in CDMX to lead the technical delivery of digital products, guiding teams towards scalable, secure, and maintainable solutions with a strong emphasis on AI-first engineering practices. The company is a global technology consultancy with a trademarked, AI-first approach called Gen-e2™, redefining how enterprises build digital products and transform with AI. They are a B Corp-certified company committed to local care and global delivery, operating as an AI-native organization with a collective intelligence approach.

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The Institute of Foundation Models is a research lab focused on building, understanding, using, and managing foundation models. We aim to advance AI research, train future AI leaders, and contribute to a knowledge-driven economy. As an AI Engineer Intern specializing in LLM data, you will work with our team to build and improve high-quality training data for foundation models across pre-training, mid-training, and post-training. You will gain hands-on experience with large-scale data processing, LLM-based data synthesis, data quality evaluation, and model experimentation.

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Fireworks is seeking new graduates for its Member of Technical Staff role, offering a unique opportunity to work on real AI systems in production from day one. As an MTS, you will write and ship code for one of the world's busiest inference platforms, serving hundreds of models at massive scale. The company matches new hires to teams based on their strengths and interests, with potential work spanning inference, model training, distributed systems, cloud infrastructure, developer platforms, or full-stack application engineering. You will be paired with a senior engineer mentor and undergo a structured ramp-up, starting with well-scoped problems and progressing to owning features and systems independently. Fireworks emphasizes a fast-paced environment with a high bar and a commitment to employee development.

$160k - $180k

You will join a core team focused on enabling safe, reliable, and scalable releases of Autonomous Vehicle (AV) software through intelligent automation and AI-enabled engineering workflows. The goal is to accelerate AV software development and release velocity by minimizing manual effort, enhancing test and release visibility, and applying AI to engineering processes. You will collaborate with various engineering and AI/ML teams to design and implement automated release validation pipelines, integrate simulation and hardware-in-loop testing, build engineering metrics, and develop AI solutions for tasks like test analysis, failure classification, defect triage, and workflow orchestration. This role involves establishing practical standards for evaluating, governing, and scaling automation and AI solutions to improve release readiness, software quality, and engineering productivity.

$153k - $234k

Isomorphic Labs is applying frontier AI to drug discovery to accelerate scientific breakthroughs and develop life-changing medicines. We are building a world-leading drug design engine using predictive and generative AI models. This role is an exciting opportunity to contribute to frontier research at the intersection of AI and drug design, working in a highly creative, iterative environment within the model performance and scaling team. You will partner with scientists and engineers to scale foundational models that will transform the biopharmaceutical world, applying novel techniques to model and systems performance optimizations, as well as machine learning, computational biology, and chemistry problems.

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The AI Quality and Productivity team is responsible for empowering Quality and Warranty teams by delivering reliable and secure AI-driven tools that streamline workflows, accelerate decision making, surface actionable insights, and unlock measurable productivity gains across the product lifecycle. As a Senior Software Engineer, you will develop data-intensive and AI-enabled software applications supporting Product Development engineering teams, working with complex data requirements and delivering solutions using industry-standard practices across SQL, Databricks, and modern programming languages like Java and Python. You will design and build software and data solutions with a strong focus on data quality, performance, and reliability, while also advising, coaching, and mentoring other engineers and shaping how teams access and use data and AI.

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Parallel Wireless is seeking a driven PHY SW Engineer to join their R&D team. This role will focus on developing advanced, carrier-grade 4G cellular communication solutions, emphasizing performance, reliability, and AI-driven development. The engineer will contribute to building the software behind next-generation cellular networks and shaping the future of telecommunications through innovative and sustainable solutions.

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Goodfire is seeking a Forward Deployed Engineer to serve as the technical lead for customer engagements, integrating our AI interpretability platform into partner environments. This hands-on role involves writing production code, building integrations, running pilots, and owning technical delivery. You will work directly with customer engineering and research teams, translating frontier research into deployed reality across various domains like Life Sciences, Robotics, and Language models. This position requires strong engineering skills, rapid learning ability, creative problem-solving under real-world constraints, and comfort operating alongside client technical teams.

$200k - $325k

Dataiku is seeking a Fullstack Software Engineer to join their Core team. This role involves contributing to the development of Dataiku DSS, an enterprise platform for building, deploying, and governing AI. You will work on core features across various themes such as Data Preparation, AI & Machine Learning, Data Consumption, Data Visualization, MLOps, Platform, and AI Governance. This is an opportunity to work with a dynamic range of technologies, including the latest LLMs and open-source communities, and contribute to shaping the future of AI.

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