Sr. Web Application Developer
Job in
Indianapolis, Marion County, Indiana, 46202, USA
Listed on 2026-06-20
Listing for:
Leidos
Full Time
position Listed on 2026-06-20
Job specializations:
-
Software Development
AI Engineer (Applied/Software), Full Stack Developer, Cloud Engineer - Software
Job Description & How to Apply Below
* 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 briefings with stakeholders.
+ Provide strategic guidance on modern web technologies, cloud adoption, and AI integration.
+ Build strong client relationships as a trusted technical advisor.
Advanced Web Application & API Development
+ Oversee development of secure, high-performance web applications and RESTful APIs.
+ Ensure interoperability and cross-platform integration across systems.
+ Drive best practices in API design, versioning, and performance optimization.
Cloud & Dev Ops Enablement
+ Architect and deploy applications in AWS and Azure, leveraging serverless and containerized services.
+ Lead CI/CD pipeline implementation and Dev Sec Ops practices.
+ Optimize systems for scalability, reliability, and cost efficiency in cloud environments.
Team Leadership & Mentorship
+ Mentor developers across multiple technology stacks, not limited to .NET.
+ Lead code reviews, architecture reviews, and technical decision-making.
+ Foster a culture of innovation, continuous learning, and engineering excellence.
Security, Performance & Quality
+ Ensure applications meet modern security standards, including secure API design and cloud security best practices.
+ Implement comprehensive testing strategies and performance monitoring.
+ Continuously improve system resilience, scalability, and maintainability.
UI/UX & Modern Web Practices
+ Collaborate with UI/UX teams to deliver responsive, accessible, and user-centric applications.
+ Drive adoption of modern front-end architecture and performance optimization techniques.
Innovation & Continuous Improvement
+ Stay current with emerging web and AI technologies, evaluating their applicability to client missions.
+ Introduce new tools, frameworks, and AI capabilities to improve delivery and innovation.
Basic Qualifications
+ Must be able to obtain a Public Trust prior to starting (US Citizenship Required).
+ Bachelor's or Master's degree in Computer Science, Information Technology, or related field (or equivalent experience).
+ 8+ years of experience in full-stack web application development, including .NET/C# and modern JavaScript frameworks.
+ Demonstrated experience working across multiple web technologies beyond .NET (e.g., Node.js, Python, or similar).
+ Strong hands-on experience with T-SQL, including writing and optimizing SQL queries, stored procedures, triggers, functions, and other database objects.
+ Demonstrated commitment to built-in quality, including developing reliable, maintainable, and well-tested solutions that meet performance, security, and coding standards.
+ Ability to follow development best practices, conduct code reviews, troubleshoot issues, and ensure deliverables meet quality expectations throughout the development lifecycle.
+ Hands-on experience integrating or developing AI/ML capabilities, such as:
+ Working with AI APIs (Azure OpenAI, AWS Bedrock, etc.)
+ Implementing data-driven or intelligent application features
+ Strong experience with AWS and/or Azure cloud platforms, including serverless…
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