Senior Full-Stack Engineer: Python, React & API Leader

Horizontal Talent; Palo Alto (CA); On-site; USD 68,000 - 117,000; Full time

Benefits offered by this job

Medical, dental, vision

Retirement plan

Competitive compensation

Job summary

Horizontal Talent is seeking an experienced Full Stack Engineer to build production-grade web applications and APIs from the ground up. This hands-on role involves owning features end to end, collaborating across the stack, and turning ambiguous requirements into scalable solutions.

You will design and deliver full-stack features, build RESTful APIs with Python (FastAPI/Flask), and develop responsive frontends with React.

Qualifications

• 8+ years of hands-on full stack development experience.
• Strong JavaScript skills, including ES6+, async/await, closures, and modern application patterns.
• Professional experience with React, including hooks, state management, and component-based development.
• Advanced Python development experience in production environments.
• Experience building APIs with FastAPI or Flask.
• Relational databases such as PostgreSQL, MySQL, or SQL Server.
• Knowledge of schema design, joins, indexing, and query optimization.
• Analytical thinking and ability to work through ambiguity.
• Strong communication and collaborative approach.
• Ownership mindset with delivering complete, high-quality solutions.

Responsibilities

• Design and deliver full-stack features from database schema through backend services and user-facing interfaces.
• Build and maintain RESTful APIs using Python and modern web frameworks such as FastAPI or Flask.
• Develop responsive frontend experiences with strong JavaScript fundamentals and React preferred.
• Work with relational databases to create efficient schemas, queries, indexes, and data relationships.
• Partner with stakeholders to clarify requirements early and shape implementation plans to reduce rework.
• Contribute to scalable system design and make thoughtful technical decisions for long-term maintainability.
• Write clean, testable code and support unit and integration testing efforts.
• Follow best practices for version control, documentation, and collaborative development.
• Support basic DevOps workflows, including Docker and CI/CD, as needed.

Skills

Full stack development

JavaScript (ES6+)

React

Python

FastAPI/Flask

Relational databases

API design

Testing

CI/CD

Docker

Communication

Ownership

Tools

Swagger/OpenAPI

Git

Job description

Horizontal Talent is seeking an experienced Full Stack Engineer to build production-grade web applications and APIs from the ground up. This hands-on role involves owning features end to end, collaborating across the stack, and turning ambiguous requirements into scalable solutions.

You will design and deliver full-stack features, build RESTful APIs with Python (FastAPI/Flask), and develop responsive frontends with React.