Senior Full-stack Developer (Python/FastAPI, React/TypeScript)

Job description

We are building a new multi-cloud product and need a Senior Full-stack Developer to deliver Python/FastAPI services and React/TypeScript UI at scale. You will work with PostgreSQL, OpenSearch, and Databricks, improving performance and integrations across the stack. Apply now.

Responsibilities

- Build and support web applications using Python/FastAPI and SQL

- Design APIs and integrations that can handle high-load database operations

- Tune and optimize query performance across production environments

- Implement front-end features with TypeScript and React

- Leverage GenAI engineering tools to enhance development workflows

- Coordinate with the team while independently delivering assigned work

- Communicate early and often with teammates and stakeholders

- Own product features and contribute beyond simply completing tickets

- Operate effectively in ambiguity and ship results in a fast-paced startup environment

Requirements

- Proven track record with 5+ years of production work using Python, FastAPI, and SQL

- Strong expertise in web application engineering, API design, and third-party integrations

- Hands-on experience operating high-load databases and tuning query performance

- Working knowledge of TypeScript and React with readiness to contribute across front end and back end

- Practical experience with GenAI engineering tools, ideally Claude Code

- Excellent communication skills and a proactive mindset, able to collaborate and self-direct

- Demonstrated ability to execute amid ambiguity without constant guidance in a transparent, fast-moving startup environment

- English proficiency at B2 (Upper-Intermediate) level or higher

Nice to have

- Strong exposure to TypeScript, React, Next.js, Storybook, Playwright, Radix UI, and Zustand

- Experience working with PostgreSQL and OpenSearch

- Familiarity with cloud platforms, Infrastructure as Code, and related tooling

- Data engineering background, including PySpark and SparkSQL

- Client-facing experience