Senior Full Stack Engineer

Confiz; Seattle (WA); Hybrid; USD 130,000 - 170,000; Full time

Job summary

Confiz in Seattle is seeking a Senior Full Stack Engineer for a hybrid role. You will design, develop, and deliver scalable web applications with React on the frontend and Java/Node.js on the backend.

You will build RESTful APIs, work with PostgreSQL and DynamoDB, and participate in architecture discussions, code reviews, and on-call rotations.

Onsite four days per week (Mon-Thu) and remote Fridays, with a strong emphasis on collaboration in a fast-paced environment.

Qualifications

• 5–8 years of full-stack software development experience.
• Strong Frontend with React, JavaScript (ES6+), HTML/CSS.
• Backend with Java (Spring Boot) or Node.js; REST APIs.
• Experience with relational/NoSQL databases (PostgreSQL, DynamoDB).
• Familiarity with authentication, authorization, and security best practices.
• Experience with Git, CI/CD, automated testing; cloud-native development.

Responsibilities

• Design, develop, and maintain end-to-end web applications using modern frontend and backend 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.

Skills

React

JavaScript (ES6+)

HTML

CSS

REST APIs

Microservices

Git

CI/CD

AWS

Docker

Kubernetes

TypeScript

Next.js

Security best practices

Cloud-native

Education

Bachelor's degree or equivalent experience

Tools

Java

Spring Boot

Node.js

PostgreSQL

DynamoDB

Job description

One of Confiz's largest retail clients is seeking a highly skilled Senior Full Stack Engineer 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.

This is a hybrid role based in Seattle, WA.

Onsite presence of 4 days per week is expected Monday through Thursday, Remote Fridays

Responsibilities

• 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

Requirements

• Bachelors or equivalent experience
• 5-8 years of experience in full-stack software development
• Strong experience with React, JavaScript (ES6+), HTML, CSS
• Backend experience with Java (Spring Boot) or Node.js
• Strong understanding of REST APIs, microservices, and distributed systems
• Experience working with relational and/or NoSQL databases (PostgreSQL, DynamoDB, etc.)
• Familiarity with authentication, authorization, and security best practices
• Experience with Git, CI/CD pipelines, and automated testing
• Solid understanding of cloud-native application development

Preferred Qualifications

• Experience with TypeScript
• Exposure to Next.js or modern frontend frameworks
• Experience with AWS (EC2, ECS/EKS, Lambda, RDS, DynamoDB, S3)
• Familiarity with containerization (Docker, Kubernetes)
• Experience with event-driven architectures (Kafka, SNS/SQS)
• Background in retail, POS, or enterprise systems

Soft Skills

• Strong ownership mindset and accountability
• Excellent communication and collaboration skills
• Ability to balance speed with quality
• Experience working in agile / Scrum environments
• Passion for learning and improving engineering practices

We have a global team of amazing individuals working on highly innovative enterprise projects & products. Our customer base includes Fortune 100 retail and CPG companies, leading store chains, fast growth fintech, and multiple Silicon Valley startups. What makes Confiz stand out is our focus on processes and culture. Confiz is ISO 9001:2015 (QMS), ISO 27001:2022 (ISMS), ISO 20000-1:2018 (ITSM) and ISO 14001:2015 (EMS) Certified. We have a vibrant culture of learning via collaboration and making workplace fun.

People who work with us work with cutting-edge technologies while contributing success to the company as well as to themselves.

To know more about Confiz, visit: https://www.linkedin.com/company/confiz/