Sr. Web Application Developer

Leidos — Indianapolis, IN

We are seeking a highly experienced Senior Web Application Developer to serve as a technical leader, client liaison, and AI-enabled solutions engineer. This role requires a well-rounded full-stack background across modern web technologies, including but not limited to .NET/C#, JavaScript frameworks, cloud-native architectures, and emerging AI/ML integrations. The ideal candidate brings 8+ years of experience building scalable web applications, combined with hands-on experience incorporating AI/ML capabilities (e.g., generative AI, APIs, or data-driven models) into production systems. This individual will act as a trusted advisor to clients, shaping technical direction while leading engineering teams to deliver innovative, secure, and high-performing solutions. Primary Responsibilities Full-Stack Architecture & Technical Leadership Lead the architecture, design, and development of modern web applications across a diverse technology stack, including .NET/C#, Node.js, and front-end frameworks (React, Angular, Vue). Design and implement scalable, cloud-native solutions using microservices and serverless architectures. Establish and enforce engineering best practices, coding standards, and architectural patterns across teams. AI/ML Integration & Intelligent Solutions Design and implement AI-enabled application features, such as: Integration with LLMs and AI APIs (e.g., Azure OpenAI, AWS Bedrock, or similar platforms) Intelligent search, summarization, recommendation systems, or automation workflows Collaborate with stakeholders to identify opportunities where AI can enhance user experience, decision-making, or operational efficiency. Ensure responsible and secure use of AI technologies, including data privacy, governance, and model evaluation. Client Engagement & Technical Strategy Serve as a primary technical interface to clients, translating business needs into scalable technical solutions. Lead solutioning sessions, architecture discussions, and technical briefing

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