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Job Details

Senior Web Application Developer


Senior Developer


Indianapolis, Indiana, United States


At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ 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, our people, and our community. Our Mission, Vision, and Values guide the way we do business.

As a Senior level Web Application Developer at Leidos Inc., you will lead the development of advanced .NET web applications, emphasizing REST API integration, serverless architectures, and the use of AWS services. This role involves managing the full SDLC, adhering to software engineering best practices, and engaging with clients to transform their needs into robust software solutions.

In this role, you will:

Advanced Web Application and REST API Development:

  • Develop and enhance web applications using .NET technologies with a focus on RESTful API design and integration.
  • Implement server-less architecture using AWS services like AWS Lambda, API Gateway, and DynamoDB.
  • Design and develop APIs for cross-platform integration, ensuring scalability and security.

SDLC and Cloud Infrastructure Management:

  • Oversee the full SDLC, including planning, development, testing, deployment, and maintenance.
  • Utilize AWS cloud services effectively for application hosting, scaling, and management.
  • Implement and manage cloud-based solutions, ensuring cost-effectiveness and compliance with security standards.

Client Engagement and Technical Analysis:

  • Collaborate with clients to understand their business needs and translate them into technical requirements.
  • Develop detailed technical specifications and architecture diagrams for client approval.
  • Communicate complex technical solutions effectively to non-technical stakeholders.

Software Engineering and Best Practices:

  • Advocate for and implement best practices in software engineering, focusing on clean code, design patterns, and efficient algorithms.
  • Lead the adoption of CI/CD pipelines using tools like Jenkins or Azure DevOps for streamlined deployments.
  • Ensure the security and privacy of web applications by implementing best practices in cloud security.

Quality Assurance and Performance Optimization:

  • Develop robust testing strategies encompassing unit, integration, and performance testing.
  • 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.

Basic Qualifications:

  • Bachelors degree in Computer Science, Information Technology, or related field or a with a minimum of 4 years prior experience OR a Masters with a minimum of 2 years prior relevant experience.
  • A minimum of 5 years of experience in web application development, specifically with .NET technologies.
  • Strong expertise in REST API development and integration.
  • Proficient in server-less architecture and AWS services like Lambda, API Gateway, S3, EC2, and RDS.
  • Solid understanding of software development methodologies and best practices.
  • Excellent analytical, problem-solving, and communication skills.

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:


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 $81,250.00 - $146,875.00

The Leidos pay range for this job level is a general guideline only and 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.