Senior Web Application Developer Jobs (NOW HIRING)

Job Title: Sr. Web Application Developer
Location: Indianapolis, IN
Type: Contract
Compensation: $57.65 - $65.00 per hour
Work Model: Hybrid (2 to 3 day/week on-site)
Hours: 40.0
Security Clearance: Active Public Trust (Preferred)

Overview
This is a senior-level full-stack development and technical leadership role focused on building modern, cloud-based web applications and integrating AI capabilities into enterprise solutions. The contractor will lead architecture decisions, mentor development teams, and work directly with business stakeholders and clients to deliver scalable, secure, and high-performance applications.

Responsibilities

• Lead the architecture, design, and development of modern web applications across various technologies, including .NET/C#, Node.js, and front-end frameworks such as React, Angular, or Vue.
• Design and implement scalable, cloud-native solutions utilizing microservices and serverless architectures.
• Establish and enforce best practices, coding standards, and architectural patterns across engineering teams.
• Design and implement AI-enabled application features such as integration with LLMs and AI APIs (e.g., Azure OpenAI, AWS Bedrock).
• Collaborate with stakeholders to identify AI opportunities that enhance user experience, decision-making, or operational efficiencies.
• Ensure responsible and secure AI technology use, including data privacy, governance, and model evaluation.
• 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 web technologies, cloud adoption, and AI integration.
• Oversee development of secure, high-performance web applications and RESTful APIs, ensuring interoperability and performance optimization.
• Architect and deploy applications in AWS and Azure, leveraging serverless and containerized services.
• Lead CI/CD pipeline implementations and DevSecOps practices.
• Mentor developers across multiple stacks, lead code and architecture reviews, and foster a culture of innovation and excellence.
• Ensure applications meet security standards, including secure API design and cloud security best practices.
• Implement testing strategies and performance monitoring, continuously improving system resilience, scalability, and maintainability.
• Collaborate with UI/UX teams to deliver responsive, accessible, and user-centric applications.
• Stay current with emerging web and AI technologies, evaluating and introducing new tools and frameworks to enhance delivery and innovation.

Requirements

• Bachelor’s degree in Computer Science, Information Technology, or related field
• 8+ years of full-stack web application development experience, with proficiency in .NET/C# and modern JavaScript frameworks like React, Angular, or Vue.js
• Experience working with multiple web technologies beyond .NET, such as Node.js or Python
• Strong SQL skills, including writing and optimizing SQL queries, stored procedures, triggers, and functions
• Proven commitment to high-quality, reliable, and secure solutions that meet performance standards
• Hands-on experience integrating AI/ML capabilities via APIs like Azure OpenAI or AWS Bedrock
• Experience with cloud platforms AWS and Azure, including serverless architectures
• Deep understanding of web architecture, microservices, and RESTful API design
• Experience with SQL and NoSQL databases
• Proven ability to lead teams and engage directly with clients
• Strong communication skills to bridge business needs and technical solutions
• Knowledge of secure application development and cloud security practices

System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.
System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.
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