Senior Software Engineer — Build Mission-Critical Web & APIs

KBR Careers; Orange Park (FL); On-site; USD 110,000 - 150,000; Full time

Job summary

KBR is seeking a Senior Software Engineer to design, develop, modernize, and maintain enterprise applications and mission-critical software platforms for Air Force and DoD programs. You will lead technical design, build scalable systems, and collaborate with cross-functional teams to enable critical missions.

Join a high-impact, security-cleared environment where you will contribute across the full software lifecycle, advance modernization efforts, and implement AI-assisted solutions while

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related field.
• 8+ years of professional software development experience.
• Strong proficiency in C#, .NET Core, .NET Framework, and object-oriented software development.
• Experience developing enterprise web applications using Angular and TypeScript.
• Experience designing, developing, and maintaining RESTful APIs and service integrations.

Responsibilities

• Design, develop, and maintain scalable enterprise web applications and distributed software systems.
• Architect, develop, and support RESTful APIs and service-oriented solutions for internal and external stakeholders.
• Build modern, responsive user interfaces using Angular, TypeScript, HTML5, CSS, and related frontend technologies.
• Lead technical design and software architecture initiatives utilizing object-oriented programming principles and best practices.
• Collaborate with Program Managers, Product Owners, Architects, and Engineering teams to deliver high-quality software solutions.
• Support migration and modernization efforts involving legacy applications, cloud-based platforms, and emerging technologies.
• Design, optimize, and maintain database solutions utilizing SQL Server, Oracle, MySQL, Redis, and related technologies.
• Participate in code reviews, unit testing, debugging, deployment, and production support activities.
• Develop technical documentation, architectural diagrams, interface specifications, and software lifecycle artifacts.
• Evaluate and implement emerging technologies, including AI-assisted capabilities, automation tools, and integration frameworks.
• Analyze application performance and implement improvements to enhance reliability, scalability, maintainability, and user experience.

Skills

C#

.NET Core / .NET 8+

ASP.NET

Angular

TypeScript

REST API Development

SQL Server

Oracle

MySQL

Redis

Entity Framework

Dapper

Git Version Control

Linux and Windows Environments

OO Design

Software Design Patterns

Microservices Architecture

Agile Development Methodologies

Application Modernization

Technical Documentation

Job description

KBR is seeking a Senior Software Engineer to design, develop, modernize, and maintain enterprise applications and mission-critical software platforms for Air Force and DoD programs. You will lead technical design, build scalable systems, and collaborate with cross-functional teams to enable critical missions.

Join a high-impact, security-cleared environment where you will contribute across the full software lifecycle, advance modernization efforts, and implement AI-assisted solutions while