Software Engineer II, Fullstack (App Experience)

Affirm; San Francisco (CA); On-site; USD 110,000 - 170,000; Full time

Job summary

Affirm is hiring a frontend/software engineer for remote US work, focusing on the Home hub and front-end experiences across web and mobile platforms. You will partner with product, design, and analytics to ship features in multi-phase delivery.

You will own components, review peers, and contribute to APIs and data flows that scale. A 1.5+ year track record and strong communication are essential in this role.

Qualifications

• 1.5+ years of software engineering experience.
• Experience shipping web apps with declarative UI frameworks (React or Vue).
• Experience shipping mobile apps with React Native or native/cross‑platform languages.
• Experience designing, developing and launching APIs at scale using Kotlin or Python.
• Ability to transform simple problems into multi-component solutions with well-tested, extensible code.
• Comfort navigating large codebases and participating in code reviews.

Responsibilities

• Break down large projects into tasks and deliver in phases.
• Collaborate with product management, design and analytics to align on constraints and trade-offs.
• Create and monitor metrics, support on-call efforts and maintain team artifacts.
• Contribute to team growth through participation in interview processes.

Skills

React

React Native

APIs at scale

Code reviews

Ownership

Education

Bachelor’s degree or equivalent

Tools

Git

REST APIs

Job description

Remote US

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest.

The Marketplace and App Experience domain is the main pillar of our core consumer strategy, driving the user journey across all of our frontend surfaces: Mobile and Web. The teams span across multiple products and areas to engage and provide value to our customers, starting with the Home hub in the app or website, which expands into the various product offers and journeys a user can embark on with affirm. This role will be at the forefront of our front‑end facing cross‑team projects, working closely with other teams and engineers across our mobile and web technologies, while also evolving and collaborating with every product experience team at affirm.

What You’ll Do

• With the support of your team’s tech lead and manager, you will break down larger projects into individual tasks, deliver them in multiple phases, and collaborate with others to ensure timely delivery of your work.
• You will support your peers and stakeholders in the product development lifecycle by collaborating with product management, design & analytics by participating in ideation, articulating technical constraints, and partnering on decisions that properly consider risks and trade-offs.
• You will support the operations and availability of your team’s artifacts by creating and monitoring metrics, escalating when needed, and supporting “keep the lights on” & on‑call efforts.
• You will contribute to a sense of community on your team by engaging in growth and development activities such as participation in the interview process.

What We Look For

• You have a total of 1.5+ years of experience as a software engineer.
• You have experience shipping web apps using declarative UI frameworks like React or Vue
• You have experience shipping mobile apps using native or cross‑platform languages like React Native
• You have experience designing, developing and launching APIs at scale using languages like Kotlin or Python.
• You have mastered taking a simple problem or business scenario into a solution that interacts with multiple software components, and executing on it by writing clear, easily understood, well tested and extensible code.
• You are comfortable navigating a large code base, debugging others’ code, and providing feedback to other engineers through code reviews.
• Your experience demonstrates that you take ownership of your growth, proactively seeking feedback from your team, your manager, and your stakeholders.
• You have strong verbal and written communication skills that support effective collaboration with our global engineering team.
• This position requires either equivalent practical experience or a Bachelor’s degree in a related field.

Base Pay Grade - L

Equity Grade - 6

Employees new to affirm typically come in at the start of the pay range. affirm focuses on providing a simple and transparent pay structure which is based on a variety of factors, including location, experience and job-related