Information Technology
Full-Time
State Street
Overview
Who we are looking for
We are seeking an experienced and highly curious Senior Data Scientist to join our AI Center of Excellence (CoE), focused on developing and scaling enterprise-grade Generative AI (GenAI) solutions. The ideal candidate will have hands-on experience building NLP and LLM-based applications, a deep understanding of modern machine learning techniques, and a passion for applying them to real-world financial services problems.
This role can be performed in a hybrid model, where you can balance work from home and office to match your needs and role requirements.
What you will be responsible for
As Artificial Intelligence Developer you will:
As Senior Data Scientist – AI CoE (Generative AI), you will:
- Lead the development and experimentation of GenAI capabilities across key initiatives like RAG-as-a-Service, Prompt Engineering Hub, Fine-Tuning Studio, and Agent Marketplace.
- Design and evaluate solutions for tasks such as summarization, question-answering, classification, text-to-SQL, information extraction, and semantic search.
- Engineer high-quality prompts, retrieval pipelines, and evaluation datasets for enterprise use cases.
- Fine-tune LLMs (e.g., Mistral, LLaMA, Phi, Falcon) using LoRA/QLoRA, DPO, RLHF, and other continual learning techniques.
- Analyze and mitigate model risks such as hallucination, prompt injection, bias, and toxicity using standard RAI frameworks.
- Collaborate with engineering teams to productionize models and embed them in microservices and pipelines.
- Engage with business stakeholders to understand requirements and demonstrate model effectiveness through rapid prototyping and storytelling.
- Contribute to internal knowledge sharing via workshops, research papers, and training sessions.
What we value
These skills will help you succeed in this role:
- Strong grasp of modern machine learning and NLP methods including transformers, retrieval-augmented generation (RAG), embedding models, and attention mechanisms.
- Hands-on experience with Hugging Face, LangChain/LangGraph, PyTorch/TensorFlow, Weights & Biases, OpenAI/Anthropic APIs, and vector stores (e.g., Pinecone, FAISS, Chroma, CosmosDB).
- Solid software engineering practices: version control (Git), CI/CD, testing, and working in containerized/cloud environments (Azure, AWS).
- Familiarity with observability and evaluation frameworks (e.g., LangSmith, TruLens, ReLM, ELO rating, hallucination metrics).
- Excellent problem-solving and communication skills, with the ability to explain technical results to non-technical stakeholders.
- Prior experience in financial services is a strong plus.
Education & Preferred Qualifications
- M.S. or B.tech in Computer Science, Data Science, Applied Mathematics, or related field.
- 10+ years of experience building and deploying ML/AI solutions in production environments.
- Publications, patents, or open-source contributions in GenAI or NLP are a plus.
Additional requirements
Are you the right candidate? Yes!
We truly believe in the power that comes from the diverse backgrounds and experiences our employees bring with them. Although each vacancy details what we are looking for, we don’t necessarily need you to fulfil all of them when applying. If you like change and innovation, seek to see the bigger picture, make data driven decisions and are a good team player, you could be a great fit.
Why this role is important to us
Our technology function, Global Technology Services (GTS), is vital to State Street and is the key enabler for our business to deliver data and insights to our clients. We’re driving the company’s digital transformation and expanding business capabilities using industry best practices and advanced technologies such as cloud, artificial intelligence and robotics process automation.
We offer a collaborative environment where technology skills and innovation are valued in a global organization. We’re looking for top technical talent to join our team and deliver creative technology solutions that help us become an end-to-end, next-generation financial services company.
Join us if you want to grow your technical skills, solve real problems and make your mark on our industry.
About State Street
What we do. State Street is one of the largest custodian banks, asset managers and asset intelligence companies in the world. From technology to product innovation, we’re making our mark on the financial services industry. For more than two centuries, we’ve been helping our clients safeguard and steward the investments of millions of people. We provide investment servicing, data & analytics, investment research & trading and investment management to institutional clients.
Work, Live and Grow. We make all efforts to create a great work environment. Our benefits packages are competitive and comprehensive. Details vary by location, but you may expect generous medical care, insurance and savings plans, among other perks. You’ll have access to flexible Work Programs to help you match your needs. And our wealth of development programs and educational support will help you reach your full potential.
Inclusion, Diversity and Social Responsibility. We truly believe our employees’ diverse backgrounds, experiences and perspectives are a powerful contributor to creating an inclusive environment where everyone can thrive and reach their maximum potential while adding value to both our organization and our clients. We warmly welcome candidates of diverse origin, background, ability, age, sexual orientation, gender identity and personality. Another fundamental value at State Street is active engagement with our communities around the world, both as a partner and a leader. You will have tools to help balance your professional and personal life, paid volunteer days, matching gift programs and access to employee networks that help you stay connected to what matters to you.
State Street is an equal opportunity and affirmative action employer.
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