Senior Full Stack Engineer

What You’ll Do

Architecture & Development: Play a critical role in the design, architecture, and implementation of scalable, robust software solutions across the stack.

End-to-End Engineering: Prototype and develop web applications with complex interaction patterns, flexible components, and efficient backend systems using Python, TypeScript/React, PostgreSQL, and Snowflake.

API & Backend Ownership: Build and maintain server-side applications, APIs, and database management systems that power our platform.

Cross-Functional Collaboration: Partner with Product, Design, Customer Success, and Sales to deliver features that solve meaningful customer problems.

Technical Leadership: Lead projects, guide technical direction, and act as a systems design expert for complex initiatives.

Quality & Best Practices: Ensure high standards of code quality through testing, reviews, and modern software engineering best practices.

Mentorship: Support and mentor junior engineers, raising the technical bar across the team.

Who You Are

5+ years of full-stack engineering experience, with strong experience in Python, TypeScript/React, and PostgreSQL.

Deep understanding of Python and modern web frameworks like FastAPI, with experience building and scaling client-facing applications.

Strong systems design skills, with a solid understanding of architectural paradigms, tradeoffs, and how to build software that can scale.

Experience with frontend development, including React, TypeScript, JavaScript, CSS, and web components.

Experience building CI/CD pipelines using GitHub, GitLab, Bitbucket, or similar tools.

Strong knowledge of ORMs and their tradeoffs.

Strong product sense. You think about the user, know how to prioritize an MVP, and can help figure out what to build next.

You move quickly and like to ship, while still being thoughtful about long-term architecture and maintainability.

You’re comfortable with ambiguity and can fill in the gaps when there isn’t a clear roadmap. You like to prototype, test ideas, and learn quickly before investing in a larger build.

Strong problem-solving skills and attention to detail, with the ability to work independently while collaborating effectively with a team.

Experience working with analytics tools or in health tech is a plus.

Nice to Have

Familiarity with AWS offerings (EC2, S3, RDS).

Experience with monitoring tools (e.g., Datadog).

Active participation in design and product discussions.

Ability to take initiative and work independently.

The base salary range for this position is $170,000 – $210,000. Base pay offered may vary depending on job-related knowledge, skills, and experience. In addition to base salary, we also offer competitive equity and benefits packages.

About Adonis

Adonis is the leading AI orchestration platform for healthcare revenue cycle management (RCM), purpose-built for healthcare organizations seeking to transform their revenue operations. Traditional RCM processes often struggle with inefficiencies, costing providers up to 15% or more of their potential revenue. Through advanced automation, data science, and AI Agents, Adonis helps revenue teams detect vulnerabilities, optimize workflows, and deploy precise solutions that drive reliable and scalable financial outcomes.

Adonis is headquartered in New York City and has raised over $95M in funding, including a recent $40M Series C round led by Quadrille Capital with continued support from existing investors such as General Catalyst and Bling Capital. This funding supports our mission to restore sanity to RCM and equip provider groups and health systems with AI-driven revenue cycle operations at scale.

Compensation Philosophy

Actual base pay will depend on job-related knowledge, skills, and experience. Adonis determines compensation based on each candidate’s experience and qualifications relative to peers, and most new hires fall near the middle of the range. In addition to base salary, you’ll receive meaningful equity and great benefits.

Perks at Adonis

Competitive equity packages

Employer-paid medical insurance

Employer-paid dental insurance

Employer-paid vision insurance

Employer-funded HSA

Parental leave

Commuter benefits

Office lunches every day

Office snacks

Generous PTO

Located in 3 World Trade Center with easy access to all trains and the PATH, and amazing views of the city

Adonis is proud to be an equal-opportunity employer. We are committed to building a diverse and inclusive culture that celebrates authenticity to win as one. We do not discriminate on the basis of race, religion, color, national origin, gender, gender identity, sexual orientation, age, marital status, disability, protected veteran status, citizenship or immigration status, or any other legally protected characteristics.

At Adonis, we fully comply with the Americans with Disabilities Act (ADA). We are dedicated to embracing challenges and creating an accessible, inclusive workplace for all individuals.