Jobs and Careers
ZE
Senior Backend Engineer
Zero21Philadelphia, United StatesRemotefull_timeVerifiedPosted 12 Mar 2026
About the role
Hi, thanks for checking out our job board!
If you're an entrepreneurial-minded builder who loves to work with great people to solve wicked problems that have a meaningful impact, read on to see if this position might be a good fit for you!
The CompanyRitten.io is building modern software for addiction treatment - a largely underserved area in healthcare technology and a huge problem in America. Our mission is to enable better outcomes by providing modern, innovative tools to addiction treatment professionals.
We're an early stage, venture-backed company with a remote-first culture. Founded December 2020, we're headquartered in Philly and have engineers in NYC, Philly, LA, and TX.
The RoleWe are building a unified software platform for treatment centers to streamline their workflows and improve the patient and clinician experience. We partner with providers across all levels of care to deliver a first-of-its-kind practice management platform built for the complex and specific needs of addiction treatment.
Using modern tools and technologies which include React, Typescript, Golang, PostgreSQL, Google Cloud, Terraform, Github, etc., we build software in a fast-paced environment with a focus on shipping code. Our team is cross-functional where Engineering is as much a part of figuring out what to build as Product and Design.
As an early member of the team you’ll receive meaningful equity, have the opportunity to build lots of software, and help shape our company culture.
We work only with equal opportunity employers who welcome candidates from underrepresented, underestimated, and traditionally overlooked communities to further diversity, equity, and inclusion in the next cohort of industry-disrupting unicorns.
To all recruitment agencies: Zero21 does not accept agency resumes. Please do not forward resumes to our jobs alias or our team members. Zero21 is not responsible for any fees related to unsolicited resumes.
If you're an entrepreneurial-minded builder who loves to work with great people to solve wicked problems that have a meaningful impact, read on to see if this position might be a good fit for you!
The CompanyRitten.io is building modern software for addiction treatment - a largely underserved area in healthcare technology and a huge problem in America. Our mission is to enable better outcomes by providing modern, innovative tools to addiction treatment professionals.
We're an early stage, venture-backed company with a remote-first culture. Founded December 2020, we're headquartered in Philly and have engineers in NYC, Philly, LA, and TX.
The RoleWe are building a unified software platform for treatment centers to streamline their workflows and improve the patient and clinician experience. We partner with providers across all levels of care to deliver a first-of-its-kind practice management platform built for the complex and specific needs of addiction treatment.
Using modern tools and technologies which include React, Typescript, Golang, PostgreSQL, Google Cloud, Terraform, Github, etc., we build software in a fast-paced environment with a focus on shipping code. Our team is cross-functional where Engineering is as much a part of figuring out what to build as Product and Design.
As an early member of the team you’ll receive meaningful equity, have the opportunity to build lots of software, and help shape our company culture.
What We're Looking For:
- Prior professional experience building software (at least 4 years)
- Prior professional experience with Golang (at least 2 years)
- Prior professional experience building enterprise software
- Prior professional experience leading projects as an engineer
- Excellent communication and collaboration skills
Benefits:
- Health insurance
- Dental benefits
- Vision benefits
- Unlimited paid time off
We work only with equal opportunity employers who welcome candidates from underrepresented, underestimated, and traditionally overlooked communities to further diversity, equity, and inclusion in the next cohort of industry-disrupting unicorns.
To all recruitment agencies: Zero21 does not accept agency resumes. Please do not forward resumes to our jobs alias or our team members. Zero21 is not responsible for any fees related to unsolicited resumes.
Apply for this role
Generate a tailored application kit with a matched cover letter, interview prep, and CV highlights — in under 60 seconds.
Apply Now →Generate Application KitFree account required — sign up in 30s