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Senior Fullstack Engineer

About Onos Health

Onos Health’s mission is ambitious - ensure every healthcare dollar is spent on delivering the highest quality care. With up to 50 cents of every healthcare dollar wasted, Onos’ AI-powered platform is positioned to drive meaningful change in the industry.

Onos empowers health plans to ensure their members receive the highest quality care while reducing billions in wasteful and abusive spending. By identifying providers who deviate from an evidence-based care standard, we enable health plans to take action before their members' health outcomes are impacted.

As one of our early engineering hires reporting directly to the CTO, you'll have the opportunity to shape our technical foundation from the ground up. You'll work alongside an experienced and passionate team to build sophisticated applications powered by AI/ML systems that directly impact healthcare outcomes.

Why Onos?

  • Meaningful impact: Help improve the quality of care while reducing healthcare costs

  • Direct collaboration with experienced founders who have deep healthcare expertise

  • Collaborative, transparent & results-oriented culture

  • Significant ownership of technical decisions and architecture from day one

  • Opportunity to help build and lead an engineering team from the ground up

The Role

We're seeking a passionate technical leader (Senior/Manager level) who is motivated to meaningfully improve the way healthcare is administered in the United States. You'll take ownership of developing a significant part of the Onos platform through hands-on development and technical leadership. As an early team member, you'll work closely with our founding team while helping to build and lead a growing engineering team. This role is a hybrid role based in San Francisco, where you'll be expected to work at our office in person at least once a week.

What you'll be doing at Onos:

  • Architecting and implementing major platform components to provide actionable insights and recommendations to health plan administrators

  • Build administrative workflow features and automations related to health records, provider directories, and claims processing

  • Establish engineering best practices and technical foundations for future team growth

  • Help shape our technical roadmap, make key architectural decisions, and influence the company's product and design strategy

Technical Challenges At Onos:

  • Develop an intelligent engine that ingests complex medical standards of care documents and evaluates provider adherence to guidelines

  • Design and implement sophisticated anomaly detection systems to identify fraudulent or abusive providers

  • Build ML pipelines to analyze handwritten clinical notes and automate recommendations for clinical reviewers

  • Scale our systems to process millions of healthcare records while maintaining strict security and compliance requirements

Tech Stack:

  • At Onos, we work with a modern tech stack where you'll have the freedom to evaluate and adopt cutting-edge technologies as we scale.

  • Languages/Frameworks: Python, Django, Typescript, NextJS

  • Database/Storage: PostgreSQL (AWS RDS), S3

  • Infrastructure/Systems: AWS (ECS, Bedrock, etc.), Docker

  • Development Tools: Github, Jira, Cursor

What we're looking for:

  • 5+ years experience building software applications

  • Customer obsessed and motivated to make an impact in the healthcare space

  • Expertise with data engineering and full-stack web development practices

  • A collaborative team player with an eye for the details

Bonus points if you have:

  • Significant experience working with healthcare data and with HIPAA best practices

  • Worked with machine learning and large language models for end-user applications

  • Built and managed teams of engineers on major software projects

Benefits and Perks

  • Flexible hybrid arrangement: 1-2 days/week at San Francisco office (financial district), remote-first culture

  • Unlimited vacation policy

  • Paid parental leave

  • Medical, dental, and vision insurance

  • Pre-tax commuter benefits

  • 401(k)

  • Significant equity as an early employee

  • Direct mentorship from experienced founders

  • Ground-floor opportunity to help build a team and culture

  • Regular team events and offsites

  • Company-provided equipment and home office setup

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

Average salary estimate

$140000 / YEARLY (est.)
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$120000K
$160000K

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What You Should Know About Senior Fullstack Engineer, Onos Health

At Onos Health, we're on a mission to revolutionize healthcare spending by ensuring that every dollar is used to deliver the highest quality care possible. As a Senior Fullstack Engineer, you will play a pivotal role in this mission by joining our passionate team in San Francisco to develop sophisticated applications that drive meaningful change in the healthcare industry. Reporting directly to our CTO, you'll have the unique opportunity to help shape our technical foundation from the ground up. This hybrid position allows you to collaborate with founders who possess deep healthcare expertise while enjoying a flexible work environment. Your responsibilities will include architecting major platform components, building administrative workflows, and establishing engineering best practices that will set the stage for future team growth. You'll tackle exciting challenges such as developing intelligent engines to evaluate provider adherence to medical guidelines and designing anomaly detection systems to combat healthcare fraud. With a modern tech stack that emphasizes cutting-edge technologies, you'll have the freedom to innovate and influence our product strategy significantly. If you're customer-obsessed, collaborative, and eager to make a tangible impact in the healthcare sector, this role at Onos Health could be your next opportunity for personal and professional growth!

Frequently Asked Questions (FAQs) for Senior Fullstack Engineer Role at Onos Health
What are the responsibilities of a Senior Fullstack Engineer at Onos Health?

As a Senior Fullstack Engineer at Onos Health, you will be responsible for architecting and implementing major components of our platform, building features related to health records and claims processing, establishing engineering best practices, and helping shape the overall technical roadmap. This critical role allows you to collaborate directly with the founding team to influence product and design strategy.

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What qualifications do I need to apply for the Senior Fullstack Engineer position at Onos Health?

To apply for the Senior Fullstack Engineer role at Onos Health, you should possess a minimum of 5 years of experience in building software applications, a strong focus on data engineering and full-stack development, and a collaborative spirit. While not mandatory, experience with healthcare data and familiarity with monitoring HIPAA best practices will certainly set you apart.

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What technical challenges can I expect as a Senior Fullstack Engineer at Onos Health?

As a Senior Fullstack Engineer at Onos Health, you will face a variety of technical challenges, including developing intelligent systems to assess provider adherence to medical standards, designing anomaly detection systems for fraud identification, and building ML pipelines for analyzing clinical notes. These challenges offer an exciting opportunity to apply your technical skills in a meaningful context.

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What does the working culture look like at Onos Health for a Senior Fullstack Engineer?

At Onos Health, the culture is collaborative, transparent, and results-oriented. As a Senior Fullstack Engineer, you can expect to work in a team that values meaningful impact and encourages direct communication with experienced founders. You'll also have significant ownership of your technical decisions from day one, all within a hybrid work setting that values flexibility.

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What benefits can I expect as a Senior Fullstack Engineer at Onos Health?

As a Senior Fullstack Engineer at Onos Health, you will enjoy benefits including a flexible hybrid work arrangement, unlimited vacation, comprehensive medical, dental, and vision insurance, as well as a 401(k) plan. Additionally, you'll receive significant equity as an early employee, paid parental leave, and mentorship from experienced founders.

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Common Interview Questions for Senior Fullstack Engineer
Can you describe your experience with full-stack development?

When answering this question, highlight your hands-on experience with front-end and back-end technologies. Discuss specific projects where you contributed to both areas, emphasizing your ability to manage workflows and address user needs effectively.

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How have you applied AI or ML technologies in your previous roles?

Share examples of how you have implemented AI or ML in past projects. Be specific in discussing the outcomes, such as improved efficiencies or insights. Highlight your understanding of any related technologies and how they might be applicable at Onos Health.

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What measures do you take to ensure code quality in your projects?

Discuss the best practices you follow, such as code reviews, unit testing, and adherence to coding standards. Talk about specific tools or methodologies you use to ensure your code is maintainable and scalable, reflecting a commitment to quality.

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Describe a challenging software problem you've solved.

Provide a detailed account of a challenging problem, explaining the context and the strategies you employed to resolve it. Highlight both your technical skills and your problem-solving approach, showcasing your ability to think critically.

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How do you stay updated with current technologies and industry trends?

Mention the resources you rely on for staying informed, such as blogs, podcasts, webinars, or professional networks. Highlight your commitment to continuous learning, which is essential for a rapidly evolving field like healthcare technology.

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Can you give an example of how you worked collaboratively in a team?

Discuss a team project where your collaborative efforts contributed to success. Mention any challenges faced and how you communicated with team members, demonstrating your ability to work well under pressure and adapt to different viewpoints.

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What do you see as the primary impact technology can have on healthcare?

Answer this question by focusing on how technology can enhance patient care, improve operational efficiencies, and reduce costs. Relate your response to the mission and goals of Onos Health, emphasizing your alignment with their vision.

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How do you prioritize tasks when handling multiple projects?

Explain your approach to task prioritization, mentioning any tools or techniques you use, such as Agile methodologies or project management tools. Emphasize your ability to balance deadlines while maintaining quality outcomes.

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What is your experience with cloud services, specifically AWS?

When responding, discuss your familiarity with AWS services that are relevant to the role, such as EC2, RDS, or S3. Provide examples of how you have utilized these services in your previous work and the advantages they offered.

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What do you think is important in fostering a successful engineering culture?

Highlight factors such as open communication, mutual respect, committing to continuous improvement, and encouraging innovation among team members. Relate your viewpoint to how Onos Health can further cultivate a supportive and productive engineering culture.

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MATCH
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TEAM SIZE
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HQ LOCATION
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EMPLOYMENT TYPE
Full-time, hybrid
DATE POSTED
March 11, 2025

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