Senior Software Developer

Job not on LinkedIn

2 hours ago

🏈 Alabama – Remote

Although this job is listed in Alabama, this company may be open to hiring remote in other states.

⏰ Full Time

🟠 Senior

🧑‍💻 Full-stack Engineer

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Fullsteam

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Fintech • SaaS • B2B

Fullsteam is a leading provider of modern and scalable payments technology integrated with vertical software to offer industry-specific features and end-to-end business management systems. It delivers mission-critical infrastructure and technology, empowering a wide range of niche industries such as automotive, healthcare, recreation, and self-storage. Fullsteam's cloud-first payments technology is designed for secure, seamless integration with other vertical software, transforming how various industries conduct business. The company also offers membership and event management software for nonprofits, as well as ERP solutions for B2B markets.

1001 - 5000 employees

💳 Fintech

☁️ SaaS

🤝 B2B

📋 Description

• Own features end-to-end — from technical design and implementation to testing, deployment, and monitoring — across Java/Spring backend services, JSP frontend, and database layers. • Maintain and enhance Java/Spring Boot applications with emphasis on performance, scalability, and maintainability of business-critical salon management features. • Work with JSP, JavaScript, and CSS to create responsive, user-friendly interfaces while gradually modernizing frontend components where appropriate. • Design and implement RESTful APIs with proper authentication, error handling, and documentation; integrate third-party payment and service provider APIs. • Develop backend services using Spring Boot, including data modeling, database migrations, and complex business logic for salon operations (scheduling, payments, inventory, etc.). • Work with relational databases (MySQL), including query optimization, indexing strategies, and effective use of JPA/Hibernate. • Improve system reliability & performance using caching strategies, background job processing, and database optimization techniques. • Contribute to DevOps practices: participate in CI/CD processes, environment configuration, deployment automation, and system monitoring. • Implement security best practices including authentication, authorization, data protection, and PCI compliance for payment processing. • Champion code quality through thorough code reviews, unit testing, and incremental refactoring of legacy code. • Collaborate with Product and Support teams to understand salon owner needs, troubleshoot issues, and deliver features that solve real business problems.

🎯 Requirements

• 5+ years building production web applications with strong Java expertise and Spring framework experience. • Spring Boot proficiency building REST APIs, services, and web applications with proper dependency injection and configuration management. • Frontend development experience with JSP, JavaScript, HTML/CSS, and jQuery; willingness to work with legacy frontend code. • Database expertise: SQL schema design, complex queries, performance tuning, and JPA/Hibernate experience. • Testing discipline: unit testing with JUnit/Mockito, integration testing, and basic end-to-end testing practices. • Version control & collaboration: Git workflows, code reviews, and agile development practices. • Production system experience: deploying Java applications, monitoring, logging, and troubleshooting in production environments. • API design and integration: RESTful services, JSON handling, and third-party API integration.

🏖️ Benefits

• Health insurance • 401(k) • Paid time off • Professional development opportunities