Mid Level Full Stack Developer Jobs in Spartanburg, SC

Job Summary

The Full Stack Developer is responsible for designing, developing, testing, deploying, and maintaining web applications and supporting services. This role collaborates closely with senior engineers and cross-functional stakeholders to deliver scalable, high-quality software solutions that align with business objectives. Beyond core application development, the position includes operational support responsibilities such as monitoring and reviewing logs, troubleshooting service issues, and contributing to database query optimization. Developers in this role are also expected to leverage AI-assisted development tools to enhance code quality, improve documentation, and increase delivery efficiency.

What We Offer

• Salary commensurate with experience 
• 401(k) with generous company match and immediate vesting 
• Medical, Dental, Vision & Voluntary Benefits 
• Company-paid Short-Term Disability, Long-Term Disability, and Life Insurance 
• Non-Accrued Paid Time Off (PTO) policy providing flexibility and work-life balance 
• 80 hours of paid Sick Time annually 
• 10 paid holidays per year 
• 96 paid volunteer hours annually to support causes you care about 
• $1,000 annual Development Reimbursement for continued learning and growth 
• Paid Parental Leave to support growing families 
• Award-winning workplace culture and supportive team environment 
• Opportunities for growth and recognition in a mission-driven organization 
• Employee discounts and additional voluntary benefits including pet insurance, legal insurance, and more

Essential Functions

• Design, develop, and enhance scalable front-end and back-end features using modern JavaScript frameworks and best practices
• Build, maintain, and evolve RESTful APIs and supporting application services to ensure reliability and performance
• Write clean, maintainable, well-documented, and testable code that adheres to established engineering standards
• Develop and maintain automated unit and integration tests to support long-term stability and quality
• Participate actively in peer code reviews and technical design discussions, contributing thoughtful feedback and continuous improvement
• Create and maintain clear technical documentation for systems, services, and APIs
• Monitor application health through log analysis and observability tools, proactively identifying and troubleshooting issues
• Support production environments by diagnosing incidents, resolving service disruptions, and implementing preventative improvements
• Optimize PostgreSQL queries and contribute to performance tuning initiatives to enhance system efficiency and scalability
• Contribute to CI/CD pipelines and deployment processes in collaboration with senior engineers
• Leverage AI-assisted development tools to support code implementation, refactoring, automated test generation, debugging, and documentation drafting
• Critically evaluate and validate AI-generated outputs to ensure accuracy, security, maintainability, and alignment with engineering standards
• Integrate AI-assisted workflows responsibly within established development practices and governance frameworks
• Collaborate closely with product managers, designers, and engineering team members to deliver solutions aligned with business objectives
• Provide informal mentorship and knowledge sharing to junior developers as appropriate
• Continuously expand technical expertise by staying current with emerging technologies, tools, and industry best practices
• Perform other duties as assigned

Knowledge, Skills & Abilities

• Strong proficiency in Node.js for building scalable, high-performance backend services.
• Strong proficiency in React.js for developing responsive, maintainable front-end applications.
• Deep understanding of modern JavaScript (ES6+) and contemporary web standards, including HTML5 and CSS3.
• Hands-on experience with PostgreSQL, including designing schemas and writing optimized, efficient queries.
• Practical experience implementing automated testing using frameworks such as Jest or Mocha.
• Solid understanding of RESTful API design principles and integration best practices.
• Proficient in Git-based version control workflows, including branching, merging, and collaborative development practices.
• DevOps & Systems Exposure:
• Working knowledge of containerization technologies (Docker preferred), CI/CD pipelines, and foundational cloud infrastructure concepts.
• Ability to analyze application logs, trace system-level issues, and support production troubleshooting.
• Foundational understanding of performance monitoring and optimization techniques.
• Experience leveraging AI-assisted tools to enhance software development workflows.
• Ability to critically evaluate, validate, and refine AI-generated code and documentation.
• Understanding of responsible AI usage within production environments, including security, quality, and governance considerations.
• Excellent verbal and written communication skills
• Expert technical skills with the ability to troubleshoot and assist and train others
• Excellent organizational skills and attention to detail
• Excellent time management skills with a proven ability to meet deadlines
• Ability to function well in a high-paced and at times stressful environment
• Extremely proficient with Google Suite or similar software with the ability to learn new or updated software
• Ability to work independently

Values

• Carry passion.
• Desire excellence.
• Keep dreaming.
• Build community.
• Be Vivacious.

Education & Experience

• Minimum 3 years relevant experience required
• Bachelor’s degree or equivalent combination of education and experience preferred

Additional Requirements

• Prolonged periods of sitting or standing at a desk and working on a computer
• Ability to bend, sit, and lift up to 50 lbs
• Less than 10% travel