Senior Full Stack Engineer

Checkbook; San Mateo (CA); On-site; USD 180,000 - 240,000; Full time

Job summary

Checkbook, a fintech company in California, is seeking a Senior Full Stack Engineer to design, build, and scale our payments platform. You will work on databases, backend services, APIs, and user interfaces using Python, Postgres, and modern frontend frameworks.

You'll own projects from architecture through launch, collaborating with cross-functional teams and focusing on security, performance, and scalable design for fintech workloads. Experience in fintech is a plus but not required.

Qualifications

• 5+ years of experience building robust web applications with Python and Postgres.
• Hands-on experience with frontend frameworks (React, Angular, Vue.js, Ember).
• Familiarity with Python web frameworks such as Flask, FastAPI, or Django.

Responsibilities

• Develop and scale web applications across frontend and backend.
• Design and ship robust APIs, integrating with internal and partner systems.
• Ensure application security and data integrity.
• Design large DB schemas and optimize queries.
• Develop automation tools to improve quality and stability.
• Keep up with modern web technologies and best practices.

Skills

Python

PostgreSQL

React

Angular

Vue.js

Ember

API design

Education

Bachelor's degree in computer science or related field

Tools

Flask

FastAPI

Django

Job description

About Us

Checkbook enables businesses to access the speed, flexibility and cost savings of digital payments, with the familiarity and simplicity of paper checks. By providing businesses an on-ramp from paper to digital payments, we can effectively onboard customers at any stage of their digital transformation process.

The Role

As a Senior Full Stack Engineer at Checkbook, you'll design, build, and scale our payments platform - from databases and backend services to APIs and user interfaces. You'll work with Python, Postgres, and modern frontend frameworks, owning projects from architecture through launch.

Responsibilities

• Develop and architect exceptional web applications that exceed industry standards and captivate users
• Build and ship robust APIs, integrating with internal, partner and customer systems
• Ensure the security and integrity of our applications, safeguarding our users' valuable information
• Design and optimize large DB schemas, queries and objects to meet performance and functionality objectives
• Develop and implement automation tools and strategies to ensure the quality and stability of our web applications
• Stay up-to-date with the latest web technologies, industry trends, and best practices

Qualifications

• Bachelor's degree in computer science, computer engineering, or a related discipline
• 5+ years of experience working with Python, Postgres and frontend frameworks (e.g. React, Angular, Vue.js, Ember) to build robust web applications
• Familiarity with Python web frameworks including Flask, FastAPI and Django
• Ability to translate business requirements into effective software solutions
• Excellent problem-solving skills to tackle challenges and find creative solutions
• A background in fintech is a plus, but not required.

Variable Base + Bonus + Equity (based on experience)

*Equal Opportunities Employment Statement*

It is our policy to provide equal opportunities for all employees in relation to recruitment, training and promotion. Decisions in these areas will be made only by reference to the requirements of the job and shall not be influenced by any consideration of age, disability, gender reassignment, marriage or civil partnership, pregnancy or maternity, race (including color, nationality and ethnic and national origin), religion or belief, sex or sexual orientation.