Senior Data Scientist - NLP/LLM Specialist

Scismic is supporting a global consulting company that fosters a highly collaborative and inclusive culture, encouraging creativity, growth, and innovation. With a team of over 1,000 professionals across 50 global markets, the organization partners with world-class clients to solve complex business challenges across diverse industries. The company values a “builder’s mindset,” empowering employees to create new solutions, develop lasting impact, and grow their careers in a supportive environment. The company is seeking an exceptional Senior Data Scientist with deep expertise in Natural Language Processing and Large Language Models to join the  consulting practice. You'll work directly with Fortune 500 clients to solve complex business challenges using state-of-the-art AI technologies across diverse industries. Ideal Candidate Profile You combine academic rigor with practical engineering skills and exceptional client communication abilities. You will work end-to-end from project initiation through client delivery, comfortable both building sophisticated algorithms and presenting findings directly to clients. You excel at automating repetitive tasks and developing reusable frameworks that scale across multiple engagements. You should be comfortable implementing cutting-edge research while translating complex technical concepts into actionable business strategies. Strong presentation skills and the ability to build trust with senior executives are essential. Equal Opportunities Our mission is to create a positive and entrepreneurial environment where talented people thrive on creativity. We celebrate inclusivity and are committed to providing an inclusive environment for our employees. We do not tolerate discrimination or harassment of any kind and are committed to building an agency where everyone is welcome, and every voice is heard. We are proud to be an equal opportunity employer. In order to comply with equal pay and salary transparency laws in various locations, we believe the target range of base compensation in all locations within the United States for this role is $155k-$240k. Actual compensation is influenced by a wide array of factors including but not limited to skill set, level of experience, and location. In addition to medical, dental and vision coverage, we offer a generous unlimited PTO plan, 401k program and comprehensive benefits plan. Additional perks and benefits include a month-long sabbatical, active employee advocacy groups, globally driven inclusivity initiatives, wellness days, summer Fridays and learning and development programs for our employees. Responsibilities:

Lead client workshops and discovery sessions to identify NLP opportunities

Develop and present technical proposals to C-level executives

Manage multiple client projects simultaneously while maintaining quality and timelines

Design and implement novel NLP solutions for complex business problems

Architect scalable solutions for processing and analyzing large text corpora

Build custom language models tailored to each client's unique industry challenges

Automate repetitive analytical tasks and develop reusable algorithmic frameworks

Mentor junior data scientists and provide technical guidance on NLP projects

Develop automated content analysis, document processing, and customer insight systems

Create scalable text analytics platforms that drive measurable business outcomes

Work across retail, finance, healthcare, and media sectors

Translate complex AI capabilities into clear business value propositions

Technical Environment:

Languages: Python (primary), R, SQL, potentially C++ for optimization

ML Frameworks: PyTorch, TensorFlow, Hugging Face Transformers

Infrastructure: Kubernetes, Docker, cloud platforms (AWS/GCP/Azure)

Tools: MLflow, Weights & Biases, Apache Airflow, Spark, Vector databases

Required Qualification:

PhD in Computer Science, Computational Linguistics, Statistics, Mathematics, Economics, Econometrics, or related quantitative field

Minimum 5 years of professional experience in data science, machine learning, or related roles

Advanced NLP expertise: Deep understanding of transformer architectures, attention mechanisms, and modern NLP techniques

Large Language Model proficiency: Hands-on experience with LLM fine-tuning, prompt engineering, RLHF, and deployment at scale

Programming mastery: Expert-level Python, with strong knowledge of PyTorch/TensorFlow, Hugging Face ecosystem

MLOps & Infrastructure: Experience with model deployment, monitoring, and scaling in production environments

Experience writing production code and ensuring well-managed software delivery

Experience with foundation models (GPT, BERT, T5, LLaMA, etc.)

Knowledge of retrieval-augmented generation (RAG) systems

Understanding of model compression techniques (quantization, distillation, pruning)

Experience with evaluation metrics and benchmarking for language models

Preferred:

Experience in consulting or client-facing technical roles

Knowledge of specialized domains (healthcare NLP, legal AI, financial text analysis)

Cloud platform expertise (AWS SageMaker, Google Cloud AI, Azure ML)

Open-source contributions to major ML/NLP libraries

Benefits:

Hybrid work environment with home and office schedule (2+ days in office per week) and work from anywhere weeks

Comprehensive health benefits (healthcare, vision, dental, pet, home, and auto insurance)

Generous time off policies (unlimited paid time off, wellness days, national holidays, summer Fridays)

Four-week sabbatical every five consecutive years of employment

Exceptional parental leave benefits

Global mentorship and networking programs

Monthly cell phone reimbursement

401k savings and employee stock purchase plan

Volunteer hours (20 hours annually) for designated non-profit partner and personal choice

Globally driven inclusive initiatives (Employee Advocacy Groups, equity committee)

Career growth opportunities (multi-day customized trainings for each level)

Equal Opportunities:

Our mission is to create a positive and entrepreneurial environment where talented people thrive on creativity. We celebrate inclusivity and are committed to providing an inclusive environment for our employees. We do not tolerate discrimination or harassment of any kind and are committed to building an agency where everyone is welcome, and every voice is heard. We are proud to be an equal opportunity employer.

In order to comply with equal pay and salary transparency laws in various locations, we believe the target range of base compensation in all locations within the United States for this role is $155k-$240k. Actual compensation is influenced by a wide array of factors including but not limited to skill set, level of experience, and location.

In addition to medical, dental and vision coverage, we offer a generous unlimited PTO plan, 401k program and comprehensive benefits plan. Additional perks and benefits include a month-long sabbatical, active employee advocacy groups, globally driven inclusivity initiatives, wellness days, summer Fridays and learning and development programs for our employees.