Freelance Java Backend Developer Jobs in Cape Coral, FL

We are seeking a Senior Backend Engineer to design, build, and scale critical rental systems that power core business operations. This role requires strong expertise on backend development, with the ability to design end-to-end solutions, drive architecture decisions, and deliver highly scalable, resilient systems.

You will partner with product, design, and engineering teams to build modern, customer-centric rental experiences and robust backend platforms.

What you will do:

• Design and develop end-to-end features
• Own critical components of rental systems such as reservations, pricing, fleet, and checkout flows
• Build scalable microservices and responsive user interfaces
• Collaborate with cross-functional teams to translate business requirements into technical solutions
• Lead architectural discussions and influence system design decisions
• Mentor junior engineers and promote engineering best practices
• Ensure high standards of performance, security, scalability, and maintainability

Required Skills :

• 5+ years of backend software engineering experience
• Proven experience building and scaling production-grade systems
• Experience in domain-heavy systems (e.g., rental, travel, e-commerce, logistics) preferred
• Proficiency in Java, Spring Boot, or similar
• Strong experience designing APIs and microservices
• Strong understanding of system design, scalability, and distributed systems
• Experience with CI/CD, DevOps practices, and observability tools
• Test-driven development and automation mindset
• Strong problem-solving and analytical thinking
• Ability to own features end-to-end
• Excellent communication and collaboration skills
• Product mindset with focus on customer experience
• Adaptability in fast-paced environments
• Understanding of authentication, authorization, and security best practices

• Experience working within a cloud environment ex: (AWS/Azure/GCP)

Preferred Skills:

• Strong knowledge of databases (PostgreSQL, MySQL, DynamoDB, etc.)
• Experience with caching, messaging systems (Kafka, SQS), and event-driven architecture. 

• B.S. in Computer Science or equivalent

Stating salary range is $120,000- $140,000 commensurate with experience. 

What You'll Get: 

• 40% off any standard Hertz Rental 
• Paid Time Off
• Medical, Dental & Vision plan options
• Retirement programs, including 401(k) employer matching
• Paid Parental Leave & Adoption Assistance
• Employee Assistance Program for employees & family
• Educational Reimbursement & Discounts
• Voluntary Insurance Programs - Pet, Legal/Identity Theft, Critical Illness
• Perks & Discounts -Theme Park Tickets, Gym Discounts & more

The Hertz Corporation operates the Hertz, Dollar Car Rental, Thrifty Car Rental brands in approximately 9,700 corporate and franchisee locations throughout North America, Europe, The Caribbean, Latin America, Africa, the Middle East, Asia, Australia and New Zealand. The Hertz Corporation is one of the largest worldwide airport general use vehicle rental companies, and the Hertz brand is one of the most recognized in the world.