Full Stack Engineer

Confiz is seeking a highly skilled Senior Full Stack Engineer to support a leading client in Seattle, WA to design, develop, and deliver scalable, secure, and high-performing web applications. The ideal candidate has strong expertise across front-end and back-end technologies, enjoys end-to-end ownership, and thrives in collaborative, fast-paced environments.

• Design, develop, and maintain end-to-end web applications using modern front-end and back-end technologies
• Build scalable, reusable UI components using React
• Develop robust backend services and APIs using Java, Node.js, or similar technologies
• Design and integrate RESTful APIs and backend services
• Work closely with product managers, UX designers, and translate requirements into technical solutions
• Ensure application performance, security, scalability, and reliability
• Participate in architecture and design discussions; contribute to technical decisions
• Write clean, maintainable, well-tested code following best practices
• Review code, mentor junior engineers, and uphold engineering standards
• Support production releases, troubleshooting, and on-call rotations as needed

• Bachelor’s degree in Computer Science, Engineering, or equivalent practical experience.
• 5–8 years of experience in full-stack software development.
• Strong proficiency in React, JavaScript (ES6+), HTML, and CSS.
• Hands-on backend development experience with Java (Spring Boot) and/or Node.js.
• Strong understanding of RESTful APIs, microservices architecture, and distributed systems.
• Experience working with relational and/or No
  
  SQL databases such as Postgre
  
  SQL and Dynamo
  
  DB.
• Familiarity with authentication, authorization, and application security best practices.
• Experience using Git, CI/CD pipelines, and automated testing frameworks.
• Solid understanding of cloud-native application development principles.
• Experience with Type Script and Java development.
• Exposure to Next.js or other modern frontend frameworks.
• Experience working within AWS environments, including services such as EC2, ECS/EKS, Lambda, RDS, Dynamo
  
  DB, and S3.
• Familiarity with containerization and orchestration tools such as Docker and Kubernetes.
• Experience with event-driven architectures and messaging platforms such as Kafka and SNS/SQS.
• Previous experience in retail, POS, or enterprise system environments is preferred.
• Strong sense of ownership, accountability, and problem-solving ability.
• Excellent verbal and written communication and collaboration skills.
• Ability to balance speed, scalability, and code quality in a fast-paced environment.
• Experience working within Agile/Scrum development methodologies.
• Passion for continuous learning and improving engineering best practices.