Senior Full Stack Engineer I

Kooth is a fast-growing organization with a positive social purpose. After 20 years of successful service in the UK, we are now rapidly expanding in the United States with a clear mission: to provide welcoming, proactive, and effective digital mental health support to young people. Using collective insight from nearly 1 million hours of professional intervention, we guide young people to evidenced-based support across self-guided tools, community and peer interactions, and chat-based counseling provided by licensed counselors.

As part of our US expansion, Kooth has acquired Kismet Health, an award-winning telehealth platform built for providers, by providers. Kismet is the first telehealth platform purpose-built to boost patient engagement, streamline clinical workflows, and improve health outcomes across all ages and stages. 

We are looking for a well-rounded engineer to join the team and work directly on the Kismet product. We're keen to find someone who can operate across our entire stack, spanning Ruby on Rails, TypeScript, and Python, working with teammates to tackle a diverse set of technical challenges. As a member of our team, you will be building systems and experiences that connect patients and families with the care they need.

If you'd like to be part of an ambitious, caring culture at a company making a real difference in healthcare, apply today!

Primary Job Responsibilities:

• Developing, shipping and operating our core platform which consists of Ruby on Rails, Next.js, and Python services for enhancing our WebRTC based platform.
• Building great software by taking accountability for your work, always aiming to improve the systems that you work on, and partnering with engineering teammates in a highly-collaborative, team-based environment.
• Balancing performance, observability, reliability, maintainability, security and accessibility concerns.
• Leveraging best practices in continuous integration and delivery to iterate on product objectives.
• Collaborating across disciplines to build effective working relationships, solve challenging problems for our users, and drive positive business outcomes.

Key Skills:

• You have at least 3 years of professional engineering experience working in a product-driven environment.
• You are fluent with Ruby on Rails (or equivalent full stack frameworks), Typescript/Next.js, and/or Python - or have a strong engineering background that will allow you to quickly come up to speed.
• You are a thoughtful engineer who’s capable of taking your work through the entire lifecycle from ideation to maintenance.
• You’re excited about delivering end-to-end experiences, are passionate about your craft, and relish working across the whole stack.
• You have a quality mindset and know what it means to ship maintainable, well-tested code. Savviness with AI coding tools such as Cursor or Claude is a plus. 
• You are pragmatic and care about agile processes, data-informed development, reliability, and responsible experimentation.
• You have strong communication and collaboration skills, using them to ensure alignment with your peers and partner with them on problem-solving.
• You have worked with container-based systems in a cloud-native environment.
• You are team-oriented and value the group’s success over your personal achievements.

Compensation: The base salary for this role is $150,000 to $200,000 annually. We’re committed to transparency and value our candidates time, which is why we share salary ranges in all states—regardless of local requirements. Final compensation will be based on a variety of factors, including your education, experience, skills, and overall alignment with the role.

Kooth offers a competitive base salary and comprehensive benefits including:

• Excellent Medical, Dental, and Vision Coverage
• 401(K) Retirement Plan with company match
• Generous Paid Time Off
• Remote-first flexibility and work-from-home support
• Paid parental leave 
• Learning & development opportunities 
• 8 Paid Holidays, plus two half-day holidays (Christmas Eve and New Year’s Eve)

Equal Employment Opportunity:

Kooth is committed to creating an inclusive workplace and provides equal employment opportunities to all individuals regardless of race, color, religion, sex, sexual orientation, gender identity, national origin, disability status, protected veteran status, or any other characteristic protected by law. All employment decisions are based on merit, qualifications, and business needs.

Reasonable Accommodations:

Kooth is committed to providing reasonable accommodations for candidates with disabilities, sincerely held religious beliefs, or other protected reasons under applicable law. If you require accommodations during the application or interview process, please contact our HR team.

Ready to Join Us?

If you’re ready to make a meaningful impact and be part of a team that values purpose-driven work, apply today. Together, we’re shaping the future of digital mental health care.