Senior Full Stack Engineer
Adonis, New York City
- Pay
- $170K – $210K
- Work type
- Hybrid
- Level
- Senior
- Area
- Software engineering
- Posted
- Sep 10, 2026
About the role
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.
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Listed on Adonis's Ashby job board; checked 22 h ago. First seen by us 24 h ago. Being listed doesn't mean the team is actively interviewing. We found this board in a public directory and haven't yet confirmed it against the company's own careers page.