Senior Java Software Developer Jobs in Lake Mary, FL

Job SummaryThe Software Developer is responsible for designing, developing, testing, and maintaining software applications that support simulation-based training systems. This role collaborates with engineering, hardware, and instructional design teams to build high-quality software solutions used in simulation environments for training and operational readiness.Travel required (0-10%)Responsibilities/Duties/Functions/Tasks

• Design, develop, test, and maintain software applications used in simulation and training systems.
• Collaborate with cross-functional teams including engineers, programmers, and system integrators to implement software solutions.
• Write clean, efficient, and maintainable code following established coding standards.
• Participate in the full software development lifecycle, including requirements analysis, design, development, testing, and deployment.
• Troubleshoot, debug, and resolve software defects and performance issues.
• Develop and maintain technical documentation for software applications and system functionality.
• Support integration of software with hardware systems and simulation platforms.
• Participate in code reviews to ensure quality, reliability, and maintainability.
• Assist with system upgrades, enhancements, and software maintenance activities.

Other DutiesPlease note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for the job. Duties, responsibilities and activities may change at any time with or without notice.QualificationsMinimum Requirements

• Bachelor’s degree in Computer Science, Software Engineering, Computer Engineering, or a related field.
• 2–5 years of experience in software development (or internship experience for entry-level roles).
• Proficiency in programming languages such as C++, C#, Python, or Java.
• Experience with object-oriented programming and software development methodologies.
• Knowledge of software testing, debugging, and version control systems (e.g., Git).
• Strong analytical and problem-solving skills.
• Ability to work collaboratively in a team environment.

Preferred Qualifications

• Experience developing software for simulation, modeling, or training systems.
• Knowledge of game engines or simulation frameworks such as Unity or Unreal Engine.
• Familiarity with real-time systems or hardware/software integration.
• Experience with Agile or Scrum development methodologies.

Essential Mental Requirements

• Strong problem-solving and analytical skills.
• Excellent time-management skills.
• Must possess multi-tasking, organizational, and planning skills;
• Excellent written and spoken communication skills for documentation, intra-team, and interdisciplinary communication.

Essential Physical RequirementsThe physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job.
While performing the duties of this job, the employee is occasionally required to stand; walk; sit; use hands to finger, handle, or feel objects, tools or controls; reach with hands and arms; talk or hear. The employee must occasionally lift or move office products and supplies, up to 50 pounds.Equipment/Software/Tools Used

• Desktop or laptop computer with high-performance development environment
• Software development tools (e.g., Microsoft Visual Studio, Visual Studio Code, Eclipse IDE)
• Version control systems (e.g., Git, GitHub, GitLab)
• Programming languages and frameworks (e.g., C++, C#, Python, Java)
• Simulation and game development platforms (e.g., Unity, Unreal Engine)
• Debugging and testing tools
• Integrated development and build automation tools
• Project management and collaboration platforms (e.g., Jira, Confluence)
• Database management tools (e.g., MySQL, Microsoft SQL Server)
• Software configuration and build tools
• Standard office equipment (printer, scanner, telephone, and video conferencing systems

Our Heritage:

Founded in 1998 by an engineer, AVT Simulation is an Orlando-based, end-to-end systems integration and full-service modeling and simulation small business. Since our beginning, AVT's highly specialized staff of engineers has included some of the top leaders in the simulation industry. With an average of over 20 years of simulation experience, our dedicated staff provides specialized solutions for customers requiring on point solutions to complex problems.

AVT has always been a company that strives to make a positive difference in the lives we touch. These lives include our employees and their families, our partner companies and their employees, and ultimately the warfighters receiving our products and services. Our core values are so very important to us as a company. They guide us towards success. They make us a great company to work for and a strong partner to work with.

- People First
- Mission Excellence
- Do the Right Thing
- Commitment

People First is our first and most important core value because we firmly believe the success of AVT is directly related to supporting our employees. We have a lot of fun (with regular employee events and engagements), while still working hard to accomplish our mission of serving our military and the warfighter.

We’re looking for candidates that embody these core values, know how to have fun while working hard, and think they would thrive in an environment like ours. If you’re a self-motivated individual, then come join AVT. Come make your difference.

EOE - Equal Opportunity Employer-Vet/Disability

Qualified individuals with a disability have the right to request a reasonable accommodation. If you are unable or limited in your ability to use or access our careers website as a result of your disability, request a reasonable accommodation by visiting www.avtsim.com/careers and follow the instructions at the bottom.

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