Sr. Web Application Developer

Job Title: Sr. Web Application Developer
Location: Indianapolis, IN (hybrid)
Type: Contract
Compensation: $57.65/HR on W2


Responsibilities

• 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.
• Design and implement AI-enabled application features, including integration with LLMs and AI APIs (e.g., Azure OpenAI, AWS Bedrock, or similar platforms).
• Develop 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.
• 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.
• Oversee development of secure, high-performance web applications and RESTful APIs ensuring interoperability and cross-platform integration across systems.
• Drive best practices in API design, versioning, and performance optimization.
• Architect and deploy applications in AWS and Azure, leveraging serverless and containerized services.
• Lead CI/CD pipeline implementation and DevSecOps practices.
• Optimize systems for scalability, reliability, and cost efficiency in cloud environments.
• Mentor developers across multiple technology stacks, lead code reviews, architecture reviews, and technical decision-making.
• Foster a culture of innovation, continuous learning, and engineering excellence.
• Ensure applications meet modern security standards, including secure API design and cloud security best practices.
• Implement comprehensive testing strategies and performance monitoring.
• Collaborate with UI/UX teams to deliver responsive, accessible, and user-centric applications.
• Drive adoption of modern front-end architecture and performance optimization techniques.
• 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.

• 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.) and implementing data-driven or intelligent application features.
• Strong experience with AWS and/or Azure cloud platforms, 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 with the ability 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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