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Geico Logo Geico · IT - Software Development

Senior Full Stack Engineer

United States, Seattle 80000.00 USD / Year · Job Posted February 21, 2026
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Job Description

GEICO is seeking an experienced Engineer with a passion for building high-performance, low maintenance, zero-downtime platforms, and applications. You will help drive our insurance business transformation as we transition from a traditional IT model to a tech organization with engineering excellence as its mission, while co-creating the culture of psychological safety and continuous improvement. As a Senior Full-Stack Engineer, you will be a key member of the engineering team, collaborating across the organization to design and deliver scalable, high-performance solutions to complex problems. You will play a critical role in driving innovation, leveraging automation, and ensuring efficient data management. In a fast-paced, dynamic environment, you will plan, prioritize, and execute large-scale projects while mentoring junior engineers and contributing to the continuous improvement of engineering practices

Job Responsibility

  • 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, 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

Requirements

  • 5+ years of professional software development experience in large-scale enterprise environments
  • 3+ years of experience with ReactJS and its core principles (e.g., Redux, Hooks)
  • 4+ years of experience with backend technologies, including .NET (C#) and Java
  • 3+ years of experience with cloud platforms such as Azure, AWS, or GCP
  • Experience with RESTful services and APIs
  • Experience with open-source frameworks and tools
  • Hands-on experience in designing and architecting scalable systems
  • Strong proficiency in HTML5, CSS3, and JavaScript (ES6+)
  • Expertise in ReactJS and its ecosystem
  • Experience with backend frameworks such as Java, ASP.NET Core, Spring Boot, or similar
  • Proficiency in working with SQL and NoSQL databases
  • Familiarity with cloud platforms such as Azure, AWS, or GCP
  • Knowledge of responsive and adaptive design principles
  • Ability to work with nested data structures like JSON, XML, and YAML
  • Bachelor's or Master's degree in computer science, Information Systems, or equivalent education/work experience

Nice to have

Familiarity with programming and scripting languages such as Python, Golang, or PowerShell is a plus

What we offer

  • Comprehensive Total Rewards program that offers personalized coverage tailor-made for you and your family’s overall well-being
  • Financial benefits including market-competitive compensation
  • a 401K savings plan vested from day one that offers a 6% match
  • performance and recognition-based incentives
  • and tuition assistance
  • Access to additional benefits like mental healthcare as well as fertility and adoption assistance
  • Supports flexibility- We provide workplace flexibility as well as our GEICO Flex program, which offers the ability to work from anywhere in the US for up to four weeks per year
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