Senior Software Engineer Generative AI

Role Summary The Senior Software Engineer - Generative AI is a hands‑on technical contributor responsible for designing, developing, and integrating Generative AI-enabled capabilities within M&T Bank's secure, governed enterprise environment. This role combines strong software engineering fundamentals with applied GenAI experience and partners closely with product, architecture, and engineering teams to deliver scalable, reliable, and responsible AI solutions. Key Responsibilities Design, develop, and support GenAI‑enabled features including AI‑assisted coding, documentation, testing, analysis, and workflow automation Implement and maintain retrieval‑augmented generation (RAG) solutions, including data ingestion, embeddings, vector stores, and search pipelines Design and build agent‑based and tool‑invoking GenAI workflows, including multi‑step LLM interactions using approved enterprise platforms Develop and integrate APIs and backend services connecting LLMs to internal systems and approved third‑party tools Lead prompt design, testing, and iteration to improve output quality, relevance, and safety Participate in model testing, evaluation, and performance analysis using established enterprise frameworks Contribute hands‑on development using modern languages and frameworks (e.g., Java, Python, C#) Collaborate with Product Managers, Architects, and Engineers to translate requirements into technical solutions Provide technical guidance and mentoring to less experienced engineers Follow and promote M&T Bank SDLC, security, and responsible AI standards Required Qualifications Associate's degree and a minimum of 5 years' systems analysis and/ or application development work experience or Bachelor's degree and a minimum of 3 years' systems analysis and/ or application development work experience. In lieu of degree, a combined minimum of 7 years' education and/or relevant work experience, including a minimum of 3 years' systems analysis and/or application development work experience Strong foundation in software engineering principles, data structures, and algorithms Hands‑on experience with Java, Python, or C# in production environments Experience with RESTful APIs, API‑driven development, and Git‑based version control Working knowledge of machine learning and large language model (LLM) fundamentals Experience working within enterprise SDLC, security, and compliance standards Preferred Qualifications Experience implementing Generative AI solutions in enterprise or regulated environments Hands‑on experience with RAG architectures, embeddings, and vector databases Familiarity with Transformer‑based models, attention mechanisms, and tokenization Experience with Microsoft Azure, including Azure‑based AI services and GenAI platforms Exposure to CI/CD pipelines, DevOps tooling, and automated testing Understanding of responsible AI, data privacy, and model governance principles M&T Bank is committed to fair, competitive, and market-informed pay for our employees. The pay range for this position is $97,100.00 - $161,800.00 (USD). The successful candidate's particular combination of knowledge, skills, and experience will inform their specific compensation. Location Buffalo, New York, United States of America Great companies have an enduring sense of purpose. At M&T, our purpose is a simple one: make a difference in people's lives and uplift the communities we serve. M&T Bank Corporation is a financial holding company headquartered in Buffalo, New York. M&T's affiliates offer advice, guidance, expertise and solutions across the entire financial spectrum, combining M&T Bank's traditional banking services with the wealth management and institutional capabilities offered by Wilmington Trust. M&T Bank has a network of over 1,000 branches and 2,200 ATMs that span 12 states from Maine to Virginia and Washington, D.C. For more than 165 years, M&T has strived to take an active role in our communities and build long-lasting relationships with our customers. We are a bank for communities—combining the capabilities of a large bank with the care of a locally focused institution. As an employer of choice, we are proud to offer competitive benefits ranging from medical and retirement to forty hours of paid volunteer time, each year. Our core values - integrity, ownership, collaboration, curiosity, and candor - drive the work we do. We seek to further build upon our record of success by bringing in top talent and fresh skill sets while continuing to support the growth and development of all our team members. View M&T's Human Capital Report to learn more. Ready to join our team? Submit your application today! If you are unable to apply through this site due to technical issues or need an accommodation to apply, please contact us at careersitesupport@mtb.com for assistance. 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