Sr Software Engineer

About this role:
Wells Fargo is seeking a Senior Software Engineer.We're looking for a hands-on Full-Stack .NET engineer who can build secure, scalable web applications and deliver AI-enabled features end-to-end. You'll own services built on ASP.NET Core and modern front-ends (React/Angular/Blazor), integrate LLM- and ML-powered capabilities (e.g., RAG search, intelligent assistants, document understanding), and productionize them with strong observability, CI/CD, and governance.
You'll collaborate with Product, Design, Data/ML, and Security to define solutions, ship iteratively, and measure impact.
In this role, you will:

• Lead moderately complex initiatives and deliverables within technical domain environments
• Contribute to large scale planning of strategies
• Design, code, test, debug, and document for projects and programs associated with technology domain, including upgrades and deployments
• Review moderately complex technical challenges that require an in-depth evaluation of technologies and procedures
• Resolve moderately complex issues and lead a team to meet existing client needs or potential new clients needs while leveraging solid understanding of the function, policies, procedures, or compliance requirements
• Collaborate and consult with peers, colleagues, and mid-level managers to resolve technical challenges and achieve goals
• Lead projects and act as an escalation point, provide guidance and direction to less experienced staff.
• Key Responsibilities-Product & Delivery
• Partner with product managers and UX to translate requirements into technical designs and working software.
• Own features across the stack: backend APIs, data models, UI, AI integrations, and DevOps automation.
• Ship in small, testable increments using trunk-based development or short-lived feature branches.
• Backend (.NET) Build ASP.NET Core REST/gRPC services, implement domain logic, and enforce clean architecture (DDD where helpful).
• Data access with EF Core, SQL Server (or PostgreSQL), and optional Cosmos DB; optimize queries and caching (e.g., Redis).
• Implement background jobs (e.g., Hangfire, Azure Functions, Queues), resilient patterns (retries, circuit breakers), and secure auth (OpenID Connect/OAuth 2.0, Azure AD/Entra).
• Frontend-Develop responsive, accessible UIs with React (TypeScript), Angular, or Blazor.
• Integrate real-time interactions (SignalR/WebSockets), state management, and robust form/data handling.
• Implement UX for AI features (e.g., chat UI, citation panels, feedback loops, content safety prompts).
• AI/ML Integration
• Design and implement AI use cases such as:
• RAG (Retrieval-Augmented Generation) with vector search (e.g., Azure AI Search, Qdrant, Pinecone, PostgreSQL pgvector).
• Document intelligence (ingestion, chunking, metadata extraction, OCR with Azure AI Document Intelligence/Form Recognizer or Tesseract).
• Chatbots/assistants using Azure OpenAI/OpenAI, Semantic Kernel, or LangChain for orchestration.
• Classification/extraction/summarization workflows with prompt engineering and evaluation.
• Containerize with Docker; deploy to Azure App Service/AKS/Azure Functions (or equivalent cloud).
• CI/CD with Azure DevOps/GitHub Actions; environment promotion, infra as code (Bicep/Terraform).
• Observability with Application Insights, distributed tracing, actionable dashboards, and SLOs.
• Quality, Security & Compliance-Write unit/integration tests (xUnit/NUnit), contract tests, and UI tests (Playwright/Cypress).
• Ensure secure coding (OWASP Top 10), secrets management (Key Vault), data privacy, and compliance (logging/retention, audit).
• Participate in code reviews, design reviews, and incident postmortems.

Required Qualifications:

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

Desired Qualifications:

• 3-8+ years of professional experience (adjust for level) building production web apps/services.
• Strong in C#, .NET 6/7/8, ASP.NET Core, EF Core, and RESTful API design.
• Frontend experience with React (TypeScript) or Angular (or Blazor), including build tooling.
• Hands-on with Azure (App Service/AKS/Functions, Storage, Key Vault, App Insights).
• AI integration experience:
• Consuming LLMs (Azure OpenAI/OpenAI), designing prompts, handling tool/function calling.
• Implementing RAG with vector stores and embeddings; grounding & citations.
• Building evaluation & feedback loops for AI quality.
• Proficient with Git, CI/CD, containers, and modern testing practices.
• Solid grasp of security, performance tuning, and production troubleshooting.
• Tooling & Stack (Customize to your environment)
• Backend: .NET 8, ASP.NET Core, EF Core, xUnit
• Frontend: React + TypeScript (or Angular/Blazor), Vite/Webpack
• Data: SQL Server/PostgreSQL, Redis, Cosmos DB (optional)
• AI: Azure OpenAI, Azure AI Search (or pgvector/Qdrant), Semantic Kernel/LangChain, Azure AI Document Intelligence
• Cloud/DevOps: Azure App Service/AKS, Azure Functions, API Management, Key Vault, Bicep/Terraform, GitHub Actions/Azure DevOps
• Observability: Application Insights, OpenTelemetry, dashboards & alerts

About the Role
We're looking for a hands-on Full-Stack .NET engineer who can build secure, scalable web applications and deliver AI-enabled features end-to-end. You'll own services built on ASP.NET Core and modern front-ends (React/Angular/Blazor), integrate LLM- and ML-powered capabilities (e.g., RAG search, intelligent assistants, document understanding), and productionize them with strong observability, CI/CD, and governance.
You'll collaborate with Product, Design, Data/ML, and Security to define solutions, ship iteratively, and measure impact.
Key Responsibilities
Product & Delivery
Partner with product managers and UX to translate requirements into technical designs and working software.
Own features across the stack: backend APIs, data models, UI, AI integrations, and DevOps automation.
Ship in small, testable increments using trunk-based development or short-lived feature branches.
Backend (.NET)
Build ASP.NET Core REST/gRPC services, implement domain logic, and enforce clean architecture (DDD where helpful).
Data access with EF Core, SQL Server (or PostgreSQL), and optional Cosmos DB; optimize queries and caching (e.g., Redis).
Implement background jobs (e.g., Hangfire, Azure Functions, Queues), resilient patterns (retries, circuit breakers), and secure auth (OpenID Connect/OAuth 2.0, Azure AD/Entra).
Frontend
Develop responsive, accessible UIs with React (TypeScript), Angular, or Blazor.
Integrate real-time interactions (SignalR/WebSockets), state management, and robust form/data handling.
Implement UX for AI features (e.g., chat UI, citation panels, feedback loops, content safety prompts).
AI/ML Integration
Design and implement AI use cases such as:
RAG (Retrieval-Augmented Generation) with vector search (e.g., Azure AI Search, Qdrant, Pinecone, PostgreSQL pgvector).
Document intelligence (ingestion, chunking, metadata extraction, OCR with Azure AI Document Intelligence/Form Recognizer or Tesseract).
Chatbots/assistants using Azure OpenAI/OpenAI, Semantic Kernel, or LangChain for orchestration.
Classification/extraction/summarization workflows with prompt engineering and evaluation.
Containerize with Docker; deploy to Azure App Service/AKS/Azure Functions (or equivalent cloud).
CI/CD with Azure DevOps/GitHub Actions; environment promotion, infra as code (Bicep/Terraform).
Observability with Application Insights, distributed tracing, actionable dashboards, and SLOs.
Quality, Security & Compliance
Write unit/integration tests (xUnit/NUnit), contract tests, and UI tests (Playwright/Cypress).
Ensure secure coding (OWASP Top 10), secrets management (Key Vault), data privacy, and compliance (logging/retention, audit).
Participate in code reviews, design reviews, and incident postmortems.
Core Qualifications
3-8+ years of professional experience (adjust for level) building production web apps/services.
Strong in C#, .NET 6/7/8, ASP.NET Core, EF Core, and RESTful API design.
Frontend experience with React (TypeScript) or Angular (or Blazor), including build tooling.
Hands-on with Azure (App Service/AKS/Functions, Storage, Key Vault, App Insights).
AI integration experience:
Consuming LLMs (Azure OpenAI/OpenAI), designing prompts, handling tool/function calling.
Implementing RAG with vector stores and embeddings; grounding & citations.
Building evaluation & feedback loops for AI quality.
Proficient with Git, CI/CD, containers, and modern testing practices.
Solid grasp of security, performance tuning, and production troubleshooting.
Tooling & Stack (Customize to your environment)
Backend: .NET 8, ASP.NET Core, EF Core, xUnit
Frontend: React + TypeScript (or Angular/Blazor), Vite/Webpack
Data: SQL Server/PostgreSQL, Redis, Cosmos DB (optional)
AI: Azure OpenAI, Azure AI Search (or pgvector/Qdrant), Semantic Kernel/LangChain, Azure AI Document Intelligence
Cloud/DevOps: Azure App Service/AKS, Azure Functions, API Management, Key Vault, Bicep/Terraform, GitHub Actions/Azure DevOps
Observability: Application Insights, OpenTelemetry, dashboards & alerts
Posting End Date:
27 Feb 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.
Employees support our focus on building strong customer relationships balanced with a strong risk mitigating and compliance-driven culture which firmly establishes those disciplines as critical to the success of our customers and company. They are accountable for execution of all applicable risk programs (Credit, Market, Financial Crimes, Operational, Regulatory Compliance), which includes effectively following and adhering to applicable Wells Fargo policies and procedures, appropriately fulfilling risk and compliance obligations, timely and effective escalation and remediation of issues, and making sound risk decisions. There is emphasis on proactive monitoring, governance, risk identification and escalation, as well as making sound risk decisions commensurate with the business unit's risk appetite and all risk and compliance program requirements.
Candidates applying to job openings posted in Canada: Applications for employment are encouraged from all qualified candidates, including women, persons with disabilities, aboriginal peoples and visible minorities. Accommodation for applicants with disabilities is available upon request in connection with the recruitment process.
Applicants with Disabilities
To request a medical accommodation during the application or interview process, visit Disability Inclusion at Wells Fargo .
Drug and Alcohol Policy
Wells Fargo maintains a drug free workplace. Please see our Drug and Alcohol Policy to learn more.
Wells Fargo Recruitment and Hiring Requirements:
a. Third-Party recordings are prohibited unless authorized by Wells Fargo.
b. Wells Fargo requires you to directly represent your own experiences during the recruiting and hiring process.