Senior Software Engineer

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

Belong. Connect. Grow. with KBR!

KBR's National Security Solutions team provides advanced engineering and technology solutions supporting the intelligence, defense, and national security communities. Join a team dedicated to developing innovative software solutions that enable critical missions and shape the future of defense technology.

Title

Senior Software Engineer

Belong. Connect. Grow. with KBR!

KBR's National Security Solutions team provides advanced engineering and technology solutions supporting the intelligence, defense, and national security communities. Join a team dedicated to developing innovative software solutions that enable critical missions and shape the future of defense technology.

Why Join Us?

Innovative Projects

Work at the forefront of software engineering, enterprise modernization, data integration, cloud technologies, and mission IT solutions.

Collaborative Environment

Join a high-performing team that values innovation, technical excellence, knowledge sharing, and continuous improvement.

Mission Impact

Design and deliver software systems that directly support national security, defense operations, and mission-critical business objectives.

About KBR

KBR delivers science, technology, engineering, and logistics solutions that help accomplish some of the world's most challenging missions. Our Government Solutions team supports Department of Defense programs through innovative software engineering, systems integration, application modernization, and enterprise technology services.

We are seeking an experienced Senior Software Engineer to support critical Air Force and DoD information technology programs. The successful candidate will serve as a technical leader responsible for designing, developing, modernizing, and maintaining enterprise applications and mission-critical software platforms while supporting operational mission objectives. This role offers the opportunity to work across the full software development lifecycle while collaborating with cross-functional engineering and program teams.

Key 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.

Required Qualifications

• Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related field.
• 8+ years of professional software development experience supporting enterprise technology environments.
• 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.
• Strong experience with SQL Server, Oracle, MySQL, or similar relational database platforms.
• Understanding of software development lifecycle (SDLC) methodologies and Agile development practices.
• Excellent problem-solving, analytical, and troubleshooting skills.
• Strong written and verbal communication skills.
• Ability to obtain and maintain a Secret Security Clearance.

Required Technical 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
• Object-Oriented Design (OOD)
• Software Design Patterns
• Microservices Architecture
• Agile Development Methodologies
• Application Modernization
• Technical Documentation

Preferred Qualifications

• Experience with Salesforce technologies, including Apex, Lightning Web Components (LWC), Flows, Triggers, and Connected Apps.
• Experience supporting large-scale enterprise software systems and high-volume applications.
• Experience leading technical initiatives, mentoring developers, or serving as a technical lead.
• Experience with cloud-based application development and integrations.
• Experience modernizing legacy software platforms and implementing scalable architectural solutions.
• Experience with AI-enabled technologies, proof-of-concept development, or automation initiatives.
• Master's degree in Computer Science, Software Engineering, or a related discipline.

Desired Competencies

• Software Architecture & Design
• Full-Stack Development
• Enterprise Application Development
• API Design & Integration
• Database Architecture & Optimization
• Systems Integration
• Cloud Technologies
• Application Modernization
• DevOps & CI/CD Practices
• Agile Project Delivery
• Technical Leadership
• Stakeholder Collaboration
• Technical Documentation
• Problem Solving & Innovation

Belong, Connect and Grow at KBR

At KBR, we are passionate about our people and our Zero Harm culture. These inform all that we do and are at the heart of our commitment to, and ongoing journey toward being a People First company. That commitment is central to our team’s philosophy and fosters an environment where everyone can Belong, Connect and Grow. We Deliver – Together.

KBR is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, disability, sex, sexual orientation, gender identity or expression, age, national origin, veteran status, genetic information, union status and/or beliefs, or any other characteristic protected by federal, state, or local law.

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