**Description** _Unleash your potentia_ l at **Leidos** , where we deliver innovative solutions through the efforts of our diverse and talented people dedicated to our customer’s success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, people, and community. Our Mission, Vision, and Values guide the way we do business. Leidos is seeking a highly experienced and skilled Senior .NET/Web Application Developer with experience in developing, deploying, and maintaining web applications. The ideal candidate will have deep expertise in working within serverless environments on cloud platforms such as AWS and Azure. This role is perfect for a developer who thrives in a fast-paced, innovative environment and is passionate about leveraging cutting-edge technologies to build scalable, high-performing applications. As a Senior .NET/Web Application Developer, you will play a key role in leading complex projects, mentoring junior developers, and collaborating closely with cross-functional teams to deliver exceptional software solutions. Your expertise will be crucial in architecting robust applications, optimizing performance, and ensuring best practices in cloud deployment and web security. **Primary Responsibilities:** + **Advanced Web Application and REST API Development.** + Lead the design, development, and deployment of sophisticated web applications using .NET/C# and modern JavaScript frameworks such as React, Angular, or Vue.js. + Develop and enhance web applications with a strong focus on RESTful API design and integration. + Architect and implement serverless solutions using AWS services like AWS Lambda, API Gateway, and DynamoDB, ensuring scalability, performance, and security. + Design and develop APIs for cross-platform integration, maintaining a high standard of security and performance. + **SDLC and Cloud Infrastructure Management:** + Oversee the full software development life cycle (SDLC), including planning, development, testing, deployment, and maintenance, ensuring alignment with best practices. + Utilize AWS and Azure cloud services effectively for application hosting, scaling, and management, implementing cost-effective and secure cloud-based solutions. + Lead the implementation of CI/CD pipelines using tools like Jenkins or Azure DevOps for streamlined deployments and continuous integration. + **Client Engagement and Technical Analysis:** + Collaborate with clients to understand their business needs and translate them into detailed technical requirements and architecture diagrams. + Communicate complex technical solutions effectively to both technical and non-technical stakeholders, ensuring alignment and understanding. + Participate in project planning sessions, contributing to the development of technical strategies that meet client requirements and business goals. + **Software Engineering and Best Practices:** + Advocate for and implement best practices in software engineering, focusing on clean code, design patterns, and efficient algorithms. + Provide technical leadership and mentorship to junior developers, guiding them in best practices for coding, testing, and deployment. + Ensure the security and privacy of web applications by implementing best practices in cloud security and data protection. + **Quality Assurance and Performance Optimization:** + Develop robust testing strategies encompassing unit, integration, and performance testing to ensure high-quality software delivery. + Optimize applications for maximum speed and scalability, leveraging serverless architectures and cloud services. + Address and rectify any issues or bugs in a timely and efficient manner, maintaining the stability and performance of deployed applications. + **UI/UX Collaboration and Implementation:** + Collaborate with UI/UX designers to transform designs into highly functional, responsive web components while maintaining adherence to best practices. + Implement responsive design principles to ensure applications deliver a consistent user experience across all devices. + **Continuous Improvement and Innovation:** + Continuously evaluate and implement the latest web development trends and technologies, driving innovation within the team. + Stay informed about the latest industry trends, tools, and technologies, and explore how they can be integrated into ongoing and future projects. **Basic Qualifications:** + Bachelor’s and a minimum of 8 years experience or Master's degree in Computer Science or Information Technology, or related field with a minimum of 6 years experience. May possess a Doctorate as well. + A minimum of 8 years of professional experience in web application development with a strong proficiency in .NET/C# and JavaScript frameworks like React, Angular, or Vue.js. + Extensive experience in deploying and managing applications in serverless environments on AWS and Azure, with a focus on performance optimization and scalability. + Deep understanding of web application architecture, including microservices, RESTful APIs, and cloud-native design patterns. + Strong expertise in SQL and NoSQL databases, with the ability to design and implement efficient data storage solutions. + Proven ability to lead and mentor a development team, fostering a collaborative and growth-oriented environment. + Advanced knowledge of web security practices and experience in building secure, resilient applications as well as a passion for staying current with the latest industry trends and technologies, and a commitment to continuous learning and professional development. + Excellent communication skills, with the ability to articulate complex technical concepts to both technical and non-technical stakeholders. **Preferred Qualifications:** + Certification in AWS, and Azure or other cloud platforms. + Knowledge of Agile and DevOps methodologies. + Experience with automated testing and deployment tools. **Original Posting Date:** 2024-11-08 While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. **Pay Range:** Pay Range $104,650.00 - $189,175.00 The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law. REQNUMBER: R-00147623 All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. Leidos will consider qualified applicants with criminal histories for employment in accordance with relevant Laws. Leidos is an equal opportunity employer/disability/vet.