Full-Stack Engineer (Frontend Leaning)

About the role

About Ethos

Ethos (Nasdaq: $LIFE) is a leading life insurance technology company on a mission to protect families by democratizing access to life insurance and empowering agents at scale. With its robust three-sided technology platform, Ethos is transforming the life insurance experience for consumers, agents, and carriers alike. Ethos offers instant, accessible products and a seamless online process that requires no medical exams and just a few health questions; it eliminates traditional barriers, making it easier than ever for everyone to protect their families. Ethos is redefining how life insurance is bought, sold, and underwritten.

About the Role

As a frontend leaning Full-Stack Software Engineer, you'll work across the stack and be responsible for building scalable platform services and systems. You’ll work closely with other engineers to build and ship key features. We are detail oriented and value clean, modular, and high-performing code. You'll help architect and build our internal standards and frameworks. You are preferably located in San Francisco or willing to relocate. This is a hybrid role with at least 2 days in office and 3 days remote each week.

Duties and Responsibilities:

- Design, build and maintain complex fullstack systems

- Collaborate with other engineers, PMs and non-technical stakeholders to develop and ship features

- Design, build, and maintain our API’s

- Find and solve performance issues

- Participate in code reviews

- Communicate best practices to the team

- Write engineering requirements documents

Qualifications and Skills:

- 2-5 years of relevant experience in a software engineering role

- Full stack engineering experience in Javascript, Typescript, Node or Python

- Experienced with software engineering best practices – design patterns, code reviews, unit and integration testing, etc.

- Ability to communicate technical specifications both verbal and written

- Understanding of security, common attacks and defenses

- Experience shipping features behind an A/B testing or feature flag platform, such as Optimizely

- Ability to succinctly communicate technical specifications both verbal and written

- Command over front-end web technologies such as HTML, CSS and React

- Familiar with optimizing Core Web Vitals and loading speed performance

- Experience building complex architecture systems from the ground up, experience with backend architectural patterns of large, high-scale web applications

- Expert at leveraging agentic coding tools (e.g., Claude Code, Cursor, Copilot) to accelerate development workflows and improve engineering productivity

- Ability to design clean APIs and understanding of performance issues

- Knowledge of mobile first responsive styling methodologies