Senior Software Engineer

About Ancestry:

When you join Ancestry, you join a human-centered company where every person's story is important. Ancestry®, the global leader in family history, connects everyone with their past so they can discover, preserve, and share their unique family stories. With our unparalleled collection of more than 65 billion records, over 3.5 million subscribers, and over 27 million people in our growing DNA network, customers can discover their family story and gain a new level of understanding about their lives. Over the past 40 years, we've built trusted relationships with millions of people who have chosen us as the platform for discovering, preserving, and sharing the most important information about themselves and their families.

We are committed to our location flexible work approach, allowing you to choose to work in the nearest office, from your home, or a hybrid of both (subject to location restrictions and roles that are required to be in the office- see the full list of eligible US locations HERE). We will continue to hire and promote beyond the boundaries of our office locations, to enable broadened possibilities for employee diversity.

Together, we work every day to foster a work environment that's inclusive as well as diverse, and where our people can be themselves. Every idea and perspective is valued so that our products and services reflect the global and diverse clients we serve.


Ancestry encourages applications from minorities, women, the disabled, protected veterans and all other qualified applicants. Passionate about dedicating your work to enriching people's lives? Join the curious.

When you join Ancestry, you join a human-centered company where every person's story is important. Ancestry®, the global leader in family history, connects everyone with their past so they can discover, preserve, and share their unique family stories. With our unparalleled collection of more than 65 billion records, over 3.5 million subscribers, and over 27 million people in our growing DNA network, customers can discover their family story and gain a new level of understanding about their lives. Over the past 40 years, we've built trusted relationships with millions of people who have chosen us as the platform for discovering, preserving, and sharing the most important information about themselves and their families.

We are committed to our location flexible work approach, allowing you to choose to work in the nearest office, from your home, or a hybrid of both (subject to location restrictions and roles that are required to be in the office- see the full list of eligible US locations HERE). We will continue to hire and promote beyond the boundaries of our office locations to enable broadened possibilities for employee diversity.

Together, we work every day to foster a work environment that's inclusive as well as diverse, and where our people can be themselves. Every idea and perspective is valued so that our products and services reflect the global and diverse clients we serve.


Ancestry encourages applications from minorities, women, the disabled, protected veterans, and all other qualified applicants. Passionate about dedicating your work to enriching people's lives? Join the curious.

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.


What you will do...

• 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

Who you are...

• 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/ 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 have...

• 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

As a signatory of the ParityPledge in Support of Women and the ParityPledge in Support of People of Color, Ancestry values pay transparency and pay equity. We are pleased to share the base salary range for this position: $114,480 - $139,590 with eligibility for bonus, equity and comprehensive benefits including health, dental and vision. The actual salary will vary by geographic region and job experience. We will share detailed compensation data for a specific location during the recruiting process. Read more about our benefits HERE.

Additional Information:

Ancestry is an Equal Opportunity Employer that makes employment decisions without regard to race, color, religious creed, national origin, ancestry, sex, pregnancy, sexual orientation, gender, gender identity, gender expression, age, mental or physical disability, medical condition, military or veteran status, citizenship, marital status, genetic information, or any other characteristic protected by applicable law. In addition, Ancestry will provide reasonable accommodations for qualified individuals with disabilities.

All job offers are contingent on a background check screen that complies with applicable law. For candidates who live in San Francisco, CA, pursuant to the San Francisco Fair Chance Ordinance, Ancestry will consider for employment qualified applicants with arrest and conviction records.

Ancestry is not accepting unsolicited assistance from search firms for this employment opportunity. All resumes submitted by search firms to any employee at Ancestry via-email, the Internet or in any form and/or method without a valid written search agreement in place for this position will be deemed the sole property of Ancestry. No fee will be paid in the event the candidate is hired by Ancestry as a result of the referral or through other means.

Additional Information:

Ancestry is an Equal Opportunity Employer that makes employment decisions without regard to race, color, religious creed, national origin, ancestry, sex, pregnancy, sexual orientation, gender, gender identity, gender expression, age, mental or physical disability, medical condition, military or veteran status, citizenship, marital status, genetic information, or any other characteristic protected by applicable law. In addition, Ancestry will provide reasonable accommodations for qualified individuals with disabilities.

All job offers are contingent on a background check screen that complies with applicable law. For candidates who live in San Francisco, CA, pursuant to the San Francisco Fair Chance Ordinance, Ancestry will consider for employment qualified applicants with arrest and conviction records.

Ancestry is not accepting unsolicited assistance from search firms for this employment opportunity. All resumes submitted by search firms to any employee at Ancestry via-email, the Internet or in any form and/or method without a valid written search agreement in place for this position will be deemed the sole property of Ancestry. No fee will be paid in the event the candidate is hired by Ancestry as a result of the referral or through other means.