Senior LLM Developer – Generative AI & NLP Expertise

Are you a cutting-edge developer passionate about Large Language Models (LLMs) and transforming the future of AI applications? We are seeking a Senior LLM Developer to join a leading AI-driven organization in Seattle, WA. This is a high-impact opportunity to work at the forefront of Generative AI, NLP, and deep learning, designing and deploying intelligent systems that power next-generation tools and experiences. If you’re driven by complex problem-solving, innovative AI architectures, and delivering scalable solutions, this role is tailored for you.

Join a Leading AI Company at the Forefront of Innovation in Seattle

An industry-leading tech company in Seattle, WA is hiring a Senior LLM Developer to accelerate its mission of building state-of-the-art language models for real-world applications. The ideal candidate will bring deep expertise in LLMs, Python, PyTorch/TensorFlow, and transformer-based architectures. You’ll play a pivotal role in fine-tuning foundation models, optimizing performance, and collaborating across research and engineering teams to bring cutting-edge AI features to life. If you’re ready to shape the future of language technology, we want to hear from you.

Key Responsibilities of the Senior LLM Developer – Seattle, WA

Model Development & Fine-Tuning: Design, develop, and fine-tune large language models (LLMs) and transformer-based architectures to meet specific business and research objectives. Implement state-of-the-art techniques to optimize model accuracy, efficiency, and scalability.

Algorithm & Architecture Innovation: Research and integrate the latest advancements in natural language processing (NLP), machine learning, and deep learning to improve model performance and capabilities. Develop novel architectures and training strategies aligned with industry best practices.

Data Preparation & Management: Collaborate with data engineering teams to source, preprocess, and curate high-quality datasets essential for training and evaluation. Ensure data integrity, diversity, and relevance to drive robust model outcomes.

Performance Monitoring & Optimization: Continuously monitor model performance in production environments, identifying bottlenecks and opportunities for optimization. Implement improvements to reduce latency, computational cost, and increase throughput.

Cross-Functional Collaboration: Work closely with research scientists, software engineers, product managers, and stakeholders to align technical development with product goals. Translate complex AI concepts into actionable insights and scalable solutions.

Code Quality & Documentation: Maintain high standards of code quality, testing, and documentation to ensure reproducibility and maintainability of AI models and pipelines. Promote knowledge sharing within the AI/ML team.

Deployment & Integration: Lead the deployment of LLM solutions into production systems, ensuring smooth integration with existing infrastructure and APIs. Support scaling strategies to handle increasing user demand and data loads.

Innovation & Thought Leadership: Stay abreast of emerging trends in AI, NLP, and LLM research. Contribute to the company’s thought leadership by publishing papers, attending conferences, and mentoring junior team members.

Ethical AI & Compliance: Ensure development and deployment of AI models adhere to ethical guidelines, privacy laws, and bias mitigation practices. Champion responsible AI use within the organization.

What the Client is Looking for in You

As a Senior LLM Developer, the client is seeking a highly skilled and innovative AI professional who can drive advancements in Large Language Models (LLMs) and natural language processing to deliver impactful, scalable AI solutions. You should be a forward-thinking technologist with a passion for research, problem-solving, and building next-generation intelligent systems that solve real-world challenges.

Deep Expertise in Large Language Models and NLP

The ideal candidate will have extensive hands-on experience developing, fine-tuning, and deploying LLMs, with a solid understanding of transformer architectures and cutting-edge NLP techniques. You should be adept at applying your expertise to optimize model performance, improve inference efficiency, and innovate on existing AI frameworks.

Strong Software Engineering and ML Pipeline Skills

Beyond research capabilities, the client seeks someone with robust software engineering skills — proficient in Python, PyTorch or TensorFlow, and experienced with ML pipelines and model deployment. You should excel at writing clean, maintainable code and integrating AI models seamlessly into production systems.

Innovative Problem Solver and Research Enthusiast

You should be comfortable working in a fast-evolving AI landscape, staying up to date with the latest research papers, experimenting with novel algorithms, and contributing new ideas that push the boundaries of what LLMs can do. The client values candidates who balance theoretical knowledge with practical application.

Collaborative Team Player with Cross-Functional Impact

The role requires working closely with data scientists, software engineers, product managers, and stakeholders. Strong communication skills and a collaborative mindset are essential to translate complex AI concepts into business value and scalable solutions that meet product requirements.

Commitment to Ethical and Responsible AI

The client is looking for a developer who prioritizes fairness, bias mitigation, and privacy in AI development. You should champion responsible AI practices and ensure models are developed and deployed with ethical considerations front and center.

Passion for Continuous Learning and Growth

The ideal candidate thrives in a culture of continuous learning and professional growth, willing to mentor junior team members and contribute to the company’s thought leadership in AI and machine learning.

FAQs About the Role – Senior LLM Developer – Seattle, WA

1. What are the key responsibilities of the Senior LLM Developer in this role?
You will be responsible for designing, developing, and fine-tuning large language models (LLMs) and NLP systems. This includes researching new algorithms, optimizing model performance, collaborating with cross-functional teams, and deploying scalable AI solutions that power next-generation products.

2. What qualifications and experience are required for this position?
The ideal candidate should have extensive experience with transformer-based models, deep learning frameworks such as PyTorch or TensorFlow, and hands-on expertise in training and deploying large language models. A strong background in natural language processing, machine learning, and software engineering is essential. Advanced degrees in Computer Science, AI, or related fields are preferred but not mandatory.

3. What technical skills are essential for this role?
Proficiency in Python, deep learning frameworks, experience with model fine-tuning, data preprocessing, and knowledge of ML deployment pipelines are critical. Familiarity with cloud platforms and containerization tools like Docker or Kubernetes is also valuable.

4. What challenges can I expect in this role?
You’ll work on cutting-edge AI problems, facing challenges such as managing large-scale datasets, optimizing model inference speed and resource usage, addressing bias and ethical considerations, and integrating models smoothly into production environments.

5. How does this role contribute to the company’s mission?
As a Senior LLM Developer, you will directly impact the company’s ability to deliver advanced AI-powered products, driving innovation and helping maintain a competitive edge in the rapidly evolving AI landscape.

6. What is the company culture and work environment like?
The company values innovation, collaboration, and continuous learning. You will work alongside talented researchers and engineers in a supportive environment that encourages experimentation, knowledge sharing, and professional growth.

What Remuneration Can You Expect from This Job?

As a Senior LLM Developer based in Seattle, WA, you can expect a competitive and comprehensive compensation package designed to attract and retain top AI talent in a highly specialized field. The remuneration typically includes:

1. Base Salary

The base salary for a Senior LLM Developer varies depending on experience, skills, and company size. In the Seattle tech market, the annual base salary generally ranges from $130,000 to $200,000, with opportunities for higher pay in larger organizations or those with cutting-edge AI projects.

2. Performance-Based Bonuses

Many companies offer annual or quarterly performance bonuses tied to individual contributions and company milestones. These bonuses can range from 10% to 30% of your base salary and reward successful project delivery, innovation, and impact on business goals.

3. Equity & Stock Options

Equity compensation is often a significant component for senior AI roles, especially in startups and publicly traded tech firms. You may receive stock options, restricted stock units (RSUs), or other equity grants, aligning your rewards with the company’s long-term success and providing potential for substantial financial upside.

4. Benefits & Perks

Comprehensive benefits packages usually include:

Health, dental, and vision insurance
401(k) retirement plans with employer matching
Paid time off and parental leave
Flexible work arrangements including remote options
Professional development budgets for conferences and training
Wellness programs and employee assistance programs

5. Signing Bonuses & Relocation Assistance

For highly qualified candidates, companies may offer signing bonuses or relocation support to help with the transition to Seattle. These one-time incentives typically range from $5,000 to $25,000, depending on the organization and your experience level.

Total Compensation Potential

When combining base salary, bonuses, equity, and benefits, total annual compensation for a Senior LLM Developer in Seattle can range from $150,000 to over $250,000, reflecting the premium on AI and machine learning expertise in today’s market. Exceptional performers in leading tech firms may earn even more.

How to Apply

If you are a passionate and experienced AI professional specializing in Large Language Models (LLMs) and natural language processing, we invite you to apply for the Senior LLM Developer position based in Seattle, WA. This is an exceptional opportunity to join a cutting-edge company at the forefront of AI innovation and help build the next generation of intelligent language technologies.

To apply, please submit your updated resume along with a cover letter highlighting your experience in developing, fine-tuning, and deploying large language models, your proficiency with deep learning frameworks such as PyTorch or TensorFlow, and your track record of delivering scalable AI solutions. Emphasize your collaborative skills, your approach to solving complex AI problems, and any contributions to research or open-source projects in the AI/NLP space.

This role offers a unique chance to significantly impact AI-driven products and work alongside talented teams in a vibrant tech hub. Apply today to advance your career as a Senior LLM Developer and contribute to shaping the future of language AI!

For more information or to explore similar AI and machine learning opportunities, please visit our LLM and Generative AI Engineer Recruiters Page.

Job Category: LLM and Generative AI Engineer

Job Type: Full Time

Job Location: Seattle

Senior LLM Developer job in Seattle, WA