Senior Software Engineer

Ancestry•Lehi, UT

23h•Hybrid

About The Position

Ancestry is looking for a Senior Engineer, Frontend Platform, to join our team. You will work on the Web Platform team to solve, implement, deliver, and adopt shared architecture, systems, libraries, and components. You will solve problems in both the frontend and backend. Using a variety of technologies and skill sets, you will play a critical role in ensuring efficient, high-quality development across the company. As a member of the Web Platform team, you will help with an assortment of development projects that will help Ancestry migrate to a new web component-based platform. You will help develop web components, define release engineering processes for our frontend, and support the overall maintenance of our web platform for all frontend teams at Ancestry.

Requirements

5+ years of experience with JavaScript / Node.js and frontend technologies such as HTML, CSS, and frontend frameworks like React, Vue, Svelte, Lit, Angular, etc.
Experience writing or maintaining web component libraries
Experience with server frameworks such as Fastify and Express
Experience with reverse-proxy or other TCP/HTTP transport technologies and methods
Experience with deployment and containerization concepts like CI/CD, IAC, and related technologies (e.g., Terraform, Docker)
Experience with cloud-based compute infrastructure
Experience with localization and accessibility best practices
Ability to write effective tests (such as with BDD, TDD)
Familiarity with AI coding assistants and agentic coding workflows and tools

Nice To Haves

Familiarity with SEO best practices
Understanding of UX design principles
Experiences with content delivery networks
Application of security and privacy best practices
Experience working with legacy code bases and technologies
Experience with advanced web technologies, including web components, container queries, web workers, etc.
Experience with Cloud-based server infrastructure, such as EC2, ECS, EKS, Fargate, and Route 53
Ability to write effective prompts for code generation, debugging, and refactoring tasks

Responsibilities

Improve shared architecture, systems, and tools across web services and web pages
Create frontend components and libraries using various web technologies
Facilitate the adoption of shared code and libraries in web pages and web services
Implement and manage frontend routing and request filtering processes
Manage AWS-related resources