Senior Full-Stack Engineer: .NET, React & Cloud

GEICO; Seattle (WA); On-site; USD 100,000 - 215,000; Full time

Job summary

GEICO is seeking a Senior Full-Stack Engineer to design and deliver scalable, high-performance systems across the software stack. You will mentor engineers, drive best practices, and contribute to continuous improvement while collaborating with cross-functional teams.

The role emphasizes full-stack development with ReactJS front-end and .NET/Java backend, leveraging SQL/NoSQL databases, cloud platforms, and modern DevOps practices in a fast-paced environment.

Qualifications

• 5+ years of professional software development experience in large-scale enterprise environments.
• 4+ years of backend technologies such as .NET, Java, ASP.NET Core, or Spring Boot.
• 3+ years of ReactJS.
• Strong proficiency in frontend technologies: HTML5, CSS3, JavaScript (ES6+), ReactJS, Redux, Hooks.
• Experience with SQL/NoSQL databases and data formats like JSON, XML, YAML.
• Knowledge of responsive/adaptive design principles.
• Familiarity with Python, Golang, PowerShell, or similar languages (preferred).
• Bachelor’s or Master’s degree in CS/IS or equivalent education/work experience.

Responsibilities

• Design and Develop Systems: Architect, develop, and maintain scalable, resilient distributed systems.
• Define Product Requirements: Collaborate with stakeholders to define product requirements and deliver optimal solutions.
• Collaborate Across Teams: Work with cross-functional teams throughout the software development lifecycle to ensure seamless integration and delivery.
• Lead and Mentor: Conduct design sessions, code reviews, and mentor junior engineers to elevate engineering quality and share best practices.
• Develop Reusable Components: Create reusable application components and patterns to improve efficiency and scalability.
• Full-Stack Development: Design, develop, and maintain scalable full-stack applications, including front-end features using ReactJS and its ecosystem (Redux, Hooks), backend services with .NET or Java frameworks, and efficient data management using SQL and NoSQL databases.
• API and Microservices: Develop and integrate RESTful APIs and microservices for seamless communication between systems.
• DevOps Practices: Utilize CI/CD pipelines, containerization (Docker), and orchestration (Kubernetes) to streamline development and deployment.
• Documentation: Publish and maintain documentation for design references, workflows, and runbooks.
• System Support: Provide support for critical systems, including 24x7 on-call support when necessary.

Skills

Enterprise experience

Backend: .NET/Java

ReactJS

HTML5/CSS3/JS (ES6+)

Redux/Hooks

SQL/NoSQL

Cloud: Azure/AWS/GCP

RESTful APIs

DevOps: CI/CD, Docker, Kubernetes

On-call support

Education

Bachelor's or Master’s degree in Computer Science/Information Systems or equivalent

Tools

Docker

Kubernetes

ASP.NET Core

Spring Boot

ReactJS tooling (Redux, Hooks)

Job description

GEICO is seeking a Senior Full-Stack Engineer to design and deliver scalable, high-performance systems across the software stack. You will mentor engineers, drive best practices, and contribute to continuous improvement while collaborating with cross-functional teams.

The role emphasizes full-stack development with ReactJS front-end and .NET/Java backend, leveraging SQL/NoSQL databases, cloud platforms, and modern DevOps practices in a fast-paced environment.