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Senior Backend Software Engineer

Jacksonville, FL 32218

Posted: 02/03/2026 Industry: IT Job Number: 54196

Job Description

Kavaliro is seeking a Senior Backend Software Engineer for our local Jacksonville client. In this role, you’ll take ownership of core improvements to a rail simulation analysis platform, balancing deep technical development with client-facing collaboration. This is a fast-paced, hands-on position for an experienced engineer who enjoys solving complex problems and working closely with both customers and internal teams.
What You’ll Do

  • Serve as a technical point of contact for clients, ensuring contractual requirements are met and supporting technical troubleshooting as issues arise.

  • Develop, configure, and enhance train simulation software in C++, modeling locomotive behavior and route-based force dynamics.

  • Debug and maintain complex codebases using Microsoft Visual Studio.

  • Participate in system installation, testing, validation, and issue resolution alongside internal teams and clients.

  • Deliver software updates and support deployment and acceptance testing with customers.

  • Provide technical guidance and mentorship to engineers and technicians assigned to your projects.

  • Contribute to ongoing system maintenance, upgrades, and modernization efforts.

  • Identify and recommend improvements to performance, reliability, and development efficiency.
Minimum Qualifications

  • 3+ years of professional C++ development experience using Microsoft Visual Studio, including multi-threaded programming for high-performance applications and experience with MFC libraries.

  • Bachelor’s degree in Computer Science or a related technical field, plus at least 2+ years of professional engineering experience writing production C++ code.

  • Proven experience contributing to or leading software architecture initiatives, from design and planning through implementation and operational support.

  • Strong object-oriented programming, debugging, and troubleshooting skills.

  • Excellent communication skills and the ability to work directly with clients and cross-functional teams.

  • Self-driven, dependable, and comfortable working independently.

  • Ability to learn new technologies and domains quickly.

  • Creative problem-solving mindset with a willingness to challenge existing approaches.

  • Hands-on experience with hardware integration testing and troubleshooting for real-time simulation systems.

  • Authorized to work in the United States.
Preferred Skills & Experience

  • Experience with real-time systems using technologies such as C++, MFC, Python, SQL, VBA, PHP, JavaScript, Perl, Qt UI, and batch scripting.

  • Familiarity with REST APIs and web service integrations.

  • Exposure to GIS or spatial data systems.

  • Experience with Azure cloud development and deployment is a plus.

  • Background in AI, machine learning, or large-scale data systems is a plus.

  • Experience working with Kanban-style tools such as Trello.

  • Ability to manage multiple priorities in a fast-moving environment.

  • Strong interpersonal skills and a collaborative working style.

  • Fluency in English for technical communication; French language skills are a bonus.

  • Experience with modeling and simulation software or familiarity with the railway industry is a plus.

  • Demonstrated leadership or mentoring experience, with a focus on team growth.

  • Confidence working within large, complex, or legacy codebases.
  • Practical understanding of applied engineering math concepts such as force, acceleration, friction, momentum, and power.

Kavaliro provides Equal Employment Opportunities to all employees and applicants. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws. Kavaliro is committed to the full inclusion of all qualified individuals. In keeping with our commitment, Kavaliro will take the steps to assure that people with disabilities are provided reasonable accommodations. Accordingly, if reasonable accommodation is required to fully participate in the job application or interview process, to perform the essential functions of the position, and/or to receive all other benefits and privileges of employment, please respond to this posting to connect with a company representative.
 

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By using best practices and optimal employee recruiting strategies, Kavaliro provides employers with employment solutions by providing the most qualified and professional employees, who can staff both project and permanent positions in order to ensure the ongoing success of all types of businesses. We use a streamlined-yet-thorough approach to staffing that saves our clients administrative time, resources and money.
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About Jacksonville, FL

Ready to take your career to the next level? Explore our job opportunities in the vibrant Jacksonville, Florida area! Nestled along the beautiful coast of the Sunshine State, Jacksonville boasts a perfect blend of urban amenities and natural beauty, offering a high quality of life and countless growth opportunities for professionals. With its stunning beaches, thriving arts scene at Jacksonville Landing and Cummer Museum of Art & Gardens, delicious seafood cuisine, and sports events like Jacksonville Jaguars games at TIAA Bank Field, this dynamic city has something for everyone. Join us in Jacksonville and unlock your career potential in this enchanting coastal paradise!

What to expect when working with Kavaliro

Just like with our clients, we build our process to meet each individual candidate s needs. Our recruiters take the time to listen to your career goals and ambitions, then work one-on-one with you to help place you in a company that provides the best professional fit.

01

Call us with a detailed overview of your experience, skills, background, and goals. If you are local and prefer, we will set up a face-to-face interview.

02

You will be asked to complete an online assessment form to assess your skill level. At the same time, your references will be checked.

03

Your Kavaliro recruiter will discuss and review potential job opportunities.

04

When you and your recruiter agree on a potential match, you ll be briefed with helpful insight into the client s needs.

05

When you begin your employment tenure with the client, Kavaliro will continue to be there to support you in your career.

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