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Llm Developer Jobs in Pennsylvania (NOW HIRING)

Gap International

AI/LLM Engineer

Springfield, PA · On-site

As an AI/LLM Engineer, you will lead the design and implementation of advanced systems centered on large language models and natural language understanding. Your work will involve techniques such as ...

Gap International

AI/LLM Engineer

Philadelphia, PA · On-site

As an AI/LLM Engineer, you will lead the design and implementation of advanced systems centered on large language models and natural language understanding. Your work will involve techniques such as ...

Gap International

AI/LLM Engineer

Springfield, PA

As an AI/LLM Engineer, you will lead the design and implementation of advanced systems centered on large language models and natural language understanding. Your work will involve techniques such as ...

MRO Corporation

Principal AI Engineer

Norristown, PA · On-site

$180K - $200K/yr

You will design and build production AI systems -- RAG pipelines, LLM integrations, human-in-the-loop workflows, and model quality frameworks -- while setting the engineering standards other teams ...

MRO Corporation

Principal AI Engineer

Norristown, PA · On-site +1

You will design and build production AI systems - RAG pipelines, LLM integrations, human-in-the-loop workflows, and model quality frameworks - while setting the engineering standards other teams ...

MRO Corporation

Principal AI Engineer

Norristown, PA · On-site +1

$180K - $200K/yr

You will design and build production AI systems - RAG pipelines, LLM integrations, human-in-the-loop workflows, and model quality frameworks - while setting the engineering standards other teams ...

Lincoln Financial

Lead Applied AI Engineer

Radnor, PA · On-site

$152K - $243K/yr

... NLP, LLM engineering, that directly aligns with the specific responsibilities for this position. 5+ years of experience in ML engineering, applied AI, NLP, LLM engineering, or a related field.

Lincoln Financial

Lead Applied AI Engineer

Radnor, PA · Hybrid

$152K - $243K/yr

... NLP, LLM engineering, that directly aligns with the specific responsibilities for this position. 5+ years of experience in ML engineering, applied AI, NLP, LLM engineering, or a related field.

Lincoln Financial

Lead Applied AI Engineer

Radnor, PA · Hybrid

$152K - $243K/yr

... NLP, LLM engineering, that directly aligns with the specific responsibilities for this position. 5+ years of experience in ML engineering, applied AI, NLP, LLM engineering, or a related field.

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How much do llm developer jobs pay per hour?

As of Aug 31, 2026, the average hourly pay for llm developer in Pennsylvania is $50.29, according to ZipRecruiter salary data. Most workers in this role earn between $39.52 and $60.96 per hour, depending on experience, location, and employer.

What does an LLM Developer do?

An LLM Developer designs, fine-tunes, and implements large language models (LLMs) for various applications, such as chatbots, content generation, and AI-driven tools. They work with machine learning frameworks, optimize model performance, and ensure efficient deployment. This role requires expertise in natural language processing (NLP), deep learning, and programming languages like Python.

What are the key skills and qualifications needed to thrive as an LLM Developer?

To excel as an LLM Developer, you need strong expertise in natural language processing (NLP), deep learning frameworks, and programming languages such as Python, typically supported by a degree in computer science or a related field. Familiarity with machine learning libraries (like TensorFlow or PyTorch), cloud computing platforms, and experience with prompt engineering or fine-tuning large language models is crucial. Excellent problem-solving abilities, collaboration, and effective communication skills help you design solutions and work efficiently within multidisciplinary teams. These qualifications are essential for successfully building, deploying, and optimizing large language models that drive impactful AI applications.

What is the role of a large language model developer?

A large language model developer designs, trains, and fine-tunes AI models that understand and generate human language. They work with machine learning frameworks, manage large datasets, and optimize models for accuracy and efficiency, often requiring knowledge of programming, deep learning, and natural language processing techniques.

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Llm Developer jobs near you
Infographic showing various Llm Developer job openings in Pennsylvania as of August 2026, with employment types broken down into 82% Full Time, 7% Part Time, 10% Contract, and 1% Nights. Highlights an 80% Physical, 5% Hybrid, and 15% Remote job distribution, with an average salary of $104,594 per year, or $50.3 per hour.

AI/LLM Engineer

Gap International

Springfield, PA • On-site

Full-time

Re-posted 9 days ago

Job description

GAP INTERNATIONAL - A unique, purpose-driven, consulting company
ABOUT GAP INTERNATIONAL
Gap International is a global consulting firm that partners with executives to achieve breakthrough business results. We're a team of passionate problem-solvers committed to innovation and transformation. As part of our growth strategy, we're expanding our AI capabilities to deliver cutting-edge solutions across the enterprise. This role offers the opportunity to work on impactful projects, including dialog-driven learning and business process acceleration.
ABOUT THE ROLE
You will be part of a tight knit, highly collaborative research and development team focused on building real-world AI applications. As an AI/LLM Engineer, you will lead the design and implementation of advanced systems centered on large language models and natural language understanding. Your work will involve techniques such as fine-tuning, retrieval-augmented generation (RAG), and prompt engineering to solve meaningful business challenges.
You will work closely with teams to explore data, shape requirements, and integrate AI capabilities into internal tools and digital products. Your contributions will drive innovation and shape transformative projects across the organization.
RESPONSIBILITIES
  • Design and implement AI systems using Large Language Models (LLMs) to solve enterprise challenges and improve operational efficiency.
  • Fine-tune foundation models and apply techniques such as retrieval-augmented generation (RAG) and prompt engineering.
  • Collaborate with cross-functional teams to integrate AI capabilities into internal tools, workflows, and digital products.
  • Evaluate and experiment with frameworks and tools like Hugging Face, LangChain, OpenAI, Claude, and LLaMA.
  • Build and deploy scalable LLM solutions across cloud-based and local environments, leveraging container orchestration tools where applicable.
  • Lead architectural decisions and guide implementation of reusable frameworks for model evaluation, optimization, and deployment.
  • Design, develop, and optimize autonomous AI agents.
  • Apply emerging research to practical use cases, staying current with advancements in NLP and generative AI.
  • Mentor team members and contribute to a collaborative, high-performance development environment.

REQUIREMENTS
  • Minimum Master's degree in Computer Science, Engineering, or a related technical field (PhD preferred); candidates with a Master's must have at least 2 years of relevant work experience since graduating.
  • Strong experience developing and deploying LLM-based applications, including fine-tuning and prompt engineering.
  • Proficiency in Python and deep learning frameworks such as PyTorch or TensorFlow, along with version control tools like GitHub.
  • Familiarity with cloud-based AI services and APIs (e.g., OpenAI, AWS, Azure, GCP) and experience deploying models in scalable environments.
  • Solid understanding of NLP concepts, transformer architectures, and evaluation metrics for LLM systems.
  • Experience designing and implementing end-to-end training pipelines, including data shaping, model tuning, and performance optimization.
  • Ability to communicate complex technical concepts clearly across teams and to non-technical stakeholders.
  • Contributions to the AI/ML community through publications, open-source projects, or thought leadership.

GAP INTERNATIONAL ASSOCIATES
  • Purposeful people at work impacting companies around the world.
  • People who thrive in a learning environment and enjoy learning, growing, and performing at their best; energized to continually push beyond their comfort zone.
  • Comfortable with ambiguity; eager to take on things they don't know how to do.
  • Curious and flexible when it comes to their own growth and development, as well as receptive to coaching and feedback to maximize their potential.
  • Willing to communicate and contribute thoughts, insights and new ideas to senior leaders both internally and externally.

WHAT WE OFFER
  • A role with significant impact and visibility within the company.
  • Opportunities for professional growth and development in a supportive and collaborative environment.
  • Competitive salary commensurate with experience.
  • A dynamic and inclusive company culture.

TO APPLY
Please submit your resume which includes a list of publications, a cover letter explaining your interest and how your skills and experience meet the qualifications of the position, and any relevant portfolio or GitHub links showcasing your previous work or projects.
Gap International associates are based out of our corporate office in the Philadelphia metropolitan area. In order to be considered for this role, applicants should be legally authorized to work in the US.
Gap International is an equal opportunity employer and values diversity. All employment is decided on the basis of qualifications, merit and business need, and all qualified candidates will receive consideration.

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