Lead Software Engineer - Gen AI Inferencing Services and Agentic AI

About this role:
Wells Fargo is seeking a Lead Software Engineer - LLM Inferencing & Agentic AI within Digital Technology's AI Capability Engineering organization. In this role, you will design, build, and operate the GenAI Platform's GPU infrastructure and LLM/SLM serving systems, ensuring highly performant, reliable, and secure model inferencing at scale.
You will work across the full inferencing stack-from GPU cluster configuration and Run:AI / OpenShift AI orchestration to vLLM and NVIDIA Triton runtime optimization, including performance tuning, production hardening, and multi-model deployment. Focus areas include operating H100/H200 GPU clusters, advanced GPU scheduling, disaggregated prefill/decode serving, deep observability, and productionizing endpoints behind the enterprise API Gateway.
You will also design and deliver OpenAI-compatible APIs (Responses, Interactions), support MCP server integrations, and contribute to agentic AI development-including tools, agents, workflows, and evaluations. This role additionally involves building UI surfaces that improve developer and operator productivity, enabling teams to use, monitor, and troubleshoot AI services more effectively.
Strong experience with LLM/SLM behavior, inferencing optimizations, tuning techniques, and prompt engineering/evaluation is expected.
In this role, you will:

• Lead complex technology initiatives including those that are companywide with broad impact
• Act as a key participant in developing standards and companywide best practices for engineering complex and large scale technology solutions for technology engineering disciplines
• Design, code, test, debug, and document for projects and programs
• Review and analyze complex, large-scale technology solutions for tactical and strategic business objectives, enterprise technological environment, and technical challenges that require in-depth evaluation of multiple factors, including intangibles or unprecedented technical factors
• Make decisions in developing standard and companywide best practices for engineering and technology solutions requiring understanding of industry best practices and new technologies, influencing and leading technology team to meet deliverables and drive new initiatives
• Collaborate and consult with key technical experts, senior technology team, and external industry groups to resolve complex technical issues and achieve goals
• Lead projects, teams, or serve as a peer mentor
• Engineer GPU clusters and node pools; configure NVLink/NVSwitch, NVIDIA GPU Operator, MIG profiles, container runtime, and kernel/driver baselines for high-throughput LLM/SLM workloads.
• Design and implement OpenAI-compatible APIs (Responses, Interactions) behind the AI Gateway: define OpenAPI contracts, authN/Z (OAuth2/mTLS), rate limits/quotas, SLAs, versioning/deprecation, and SDK generation.
• Build and support MCP servers and tool adapters; manage agent/tool identity and capability metadata; integrate with agent registries and execution flows.
• Develop Agentic AI capabilities (tools/agents/workflows) including disaggregated prefill/decode patterns; contribute to runbooks, guardrails, and safe tool usage.
• Build UI surfaces (developer/ops consoles) for endpoint onboarding, prompt testing, evaluations, observability dashboards, and incident response workflows.
• Apply prompt engineering and evaluation best practices; create golden test suites, regression harnesses, and measurable SLO-aligned criteria for production promotion.

Required Qualifications:

• 5+ years of Software Engineering experience, or equivalent demonstrated through one or a combination of the following: work experience, training, military experience, education

Desired Qualifications:

• 5+ years of experience in Python for backend/services development, packaging, instrumentation, and automation
• 5+ years of experience building modern web UI for developer/ops workflows, including dashboards, wizards, and prompt/eval tooling, with strong testing and accessibility practices
• 1+ years of experience building MCP servers, tool adapters, and agent workflows, with an understanding of agent identity, permissions, and governance metadata
• 2+ years of experience in GenAI engineering, including LLM/SLM operations, fine-tuning/evaluation, per-model performance recipes, and prompt engineering and evaluation harnesses
• 1+ years of experience with LLM API exposure, including AI Gateway - OAuth2/mTLS, rate limits/quotas, OpenAPI/SDKs, SLAs, versioning/deprecation, and OpenAI-compatible API design for responses and interactions
• 1+ years of experience with serving large language models (LLM/SLM), including vLLM, Triton, TensorRT-LLM/MII, KV cache strategies, FP8/INT4 AWQ/GPTQ, and certified disaggregated prefill/decode
• 1+ years of experience with orchestration tools for GPU workload management, such as Run:AI (Collections/queues, quotas, preemption, fair share), OpenShift AI (RHOAI), and OCP/GKE administration
• 1+ years of experience with GPU Inference Layer, including NVIDIA and CUDA technologies such as CUDA, cuDNN, NVLink/NVSwitch, MIG, NIXL, GPU profiling, and H100/H200 performance tuning

Job Expectations:

• Hybrid onsite at required locations
• No visa sponsorship available
• No relocation assistance for this position

Posting End Date:
27 Jan 2026
*Job posting may come down early due to volume of applicants.
We Value Equal Opportunity
Wells Fargo is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other legally protected characteristic.
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