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Senior Software Engineer

Affirm

Software and Technology Jobs

Senior Software Engineer

full-timePosted: Jan 7, 2026

Job Description

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.

What You'll Do: 

  • Design and develop software for the consumer facing mobile and web application;  

  • Create tools and libraries that provide foundational functionality for, or in support of, the  core consumer facing web and mobile applications;

  • Maintain, improve, test, build, and release pipelines;  

  • Incorporate needs and opinions from stakeholders, advocating for ideas and initiatives;

  • Provide guidance on core application architectural decisions and driving implementation;

  • Work with engineers across the organization on project definition, technical specification,  task break-down, delivery, monitoring, and maintenance;  

  • Generate designs for new functionalities that are robust, maintainable and scalable; 

  • Write code that can be understood and leveraged by others, and meet the demands of the  business’s rapid growth;  

  • Provide support on questions about the consumer facing application implementation and  the tooling built around the app; and  

  • Mentor less-experienced members of the team by helping them with code review and  setting up best coding practices.  

  • May telecommute 

What we look for: 

  • Master’s degree or foreign equivalent in Computer Science, Computer Software  Engineering, Information Management or related field and 5 years of experience in the  following: 

  • Building software using modern programming languages such as Kotlin, Python, or  equivalent; 

  • Designing full stack software solutions that are robust, maintainable, and scalable;

  • Leveraging software engineering best-practices such as Source Control, Agile  Methodology, or Code Reviews to develop and deploy projects within an agreed upon  timeline; 

  • Debugging code issues utilizing logging and monitoring systems and stack trace analysis;

  • Writing technical specifications for software features, discussing tradeoffs and breaking  down complex concepts into actionable work items; 

  • Developing backend features including APIs (application programming interfaces), data  schemas, data stores, and algorithms; 

  • Ensuring code quality and system health via automated and manual test coverage,  debugging, and "on-call rotations"; and 

  • Participating in recruiting efforts via conducting interviews and writing or presenting  technical content. 

 

Base Pay Grade – N 

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 skills. 

Base pay is part of a total compensation package that may include equity rewards, monthly  stipends for health, wellness and tech spending, and benefits (including 100% subsidized medical  coverage, dental and vision for you and your dependents.)

USA base pay range (CA, WA, NY, NJ, CT) per year: $206,315 - $240,000

USA base pay range (all other U.S. states) per year: $206,315 - $219,000 

 #LI-DNI

Affirm is proud to be a remote-first company! The majority of our roles are remote and you can work almost anywhere within the country of employment. Affirmers in proximal roles have the flexibility to work remotely, but will occasionally be required to work out of their assigned Affirm office. A limited number of roles remain office-based due to the nature of their job responsibilities.

We’re extremely proud to offer competitive benefits that are anchored to our core value of people come first. Some key highlights of our benefits package include: 

  • Health care coverage - Affirm covers all premiums for all levels of coverage for you and your dependents 
  • Flexible Spending Wallets - generous stipends for spending on Technology, Food, various Lifestyle needs, and family forming expenses
  • Time off - competitive vacation and holiday schedules allowing you to take time off to rest and recharge
  • ESPP - An employee stock purchase plan enabling you to buy shares of Affirm at a discount

We believe It’s On Us to provide an inclusive interview experience for all, including people with disabilities. We are happy to provide reasonable accommodations to candidates in need of individualized support during the hiring process.

[For U.S. positions that could be performed in Los Angeles or San Francisco] Pursuant to the San Francisco Fair Chance Ordinance and Los Angeles Fair Chance Initiative for Hiring Ordinance, Affirm will consider for employment qualified applicants with arrest and conviction records.

By clicking "Submit Application," you acknowledge that you have read Affirm's Global Candidate Privacy Notice and hereby freely and unambiguously give informed consent to the collection, processing, use, and storage of your personal information as described therein.

Locations

  • Remote US, (Remote)

Salary

206,315 - 240,000 USD / yearly

Skills Required

  • Kotlinintermediate
  • Pythonintermediate
  • modern programming languagesintermediate
  • full stack software solutionsintermediate
  • Source Controlintermediate
  • Agile Methodologyintermediate
  • Code Reviewsintermediate
  • logging and monitoring systemsintermediate
  • stack trace analysisintermediate
  • APIs (application programming interfaces)intermediate
  • data schemasintermediate
  • data storesintermediate
  • algorithmsintermediate
  • automated and manual test coverageintermediate
  • debuggingintermediate
  • on-call rotationsintermediate

Required Qualifications

  • Master’s degree or foreign equivalent in Computer Science, Computer Software Engineering, Information Management or related field and 5 years of experience in the following: (experience)
  • Building software using modern programming languages such as Kotlin, Python, or equivalent (experience)
  • Designing full stack software solutions that are robust, maintainable, and scalable (experience)
  • Leveraging software engineering best-practices such as Source Control, Agile Methodology, or Code Reviews to develop and deploy projects within an agreed upon timeline (experience)
  • Debugging code issues utilizing logging and monitoring systems and stack trace analysis (experience)
  • Writing technical specifications for software features, discussing tradeoffs and breaking down complex concepts into actionable work items (experience)
  • Developing backend features including APIs (application programming interfaces), data schemas, data stores, and algorithms (experience)
  • Ensuring code quality and system health via automated and manual test coverage, debugging, and "on-call rotations" (experience)
  • Participating in recruiting efforts via conducting interviews and writing or presenting technical content (experience)

Responsibilities

  • Design and develop software for the consumer facing mobile and web application
  • Create tools and libraries that provide foundational functionality for, or in support of, the core consumer facing web and mobile applications
  • Maintain, improve, test, build, and release pipelines
  • Incorporate needs and opinions from stakeholders, advocating for ideas and initiatives
  • Provide guidance on core application architectural decisions and driving implementation
  • Work with engineers across the organization on project definition, technical specification, task break-down, delivery, monitoring, and maintenance
  • Generate designs for new functionalities that are robust, maintainable and scalable
  • Write code that can be understood and leveraged by others, and meet the demands of the business’s rapid growth
  • Provide support on questions about the consumer facing application implementation and the tooling built around the app
  • Mentor less-experienced members of the team by helping them with code review and setting up best coding practices
  • May telecommute

Benefits

  • general: Health care coverage - Affirm covers all premiums for all levels of coverage for you and your dependents
  • general: Flexible Spending Wallets - generous stipends for spending on Technology, Food, various Lifestyle needs, and family forming expenses
  • general: Time off - competitive vacation and holiday schedules allowing you to take time off to rest and recharge
  • general: ESPP - An employee stock purchase plan enabling you to buy shares of Affirm at a discount
  • general: monthly stipends for health, wellness and tech spending
  • general: benefits (including 100% subsidized medical coverage, dental and vision for you and your dependents)

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Affirm logo

Senior Software Engineer

Affirm

Software and Technology Jobs

Senior Software Engineer

full-timePosted: Jan 7, 2026

Job Description

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.

What You'll Do: 

  • Design and develop software for the consumer facing mobile and web application;  

  • Create tools and libraries that provide foundational functionality for, or in support of, the  core consumer facing web and mobile applications;

  • Maintain, improve, test, build, and release pipelines;  

  • Incorporate needs and opinions from stakeholders, advocating for ideas and initiatives;

  • Provide guidance on core application architectural decisions and driving implementation;

  • Work with engineers across the organization on project definition, technical specification,  task break-down, delivery, monitoring, and maintenance;  

  • Generate designs for new functionalities that are robust, maintainable and scalable; 

  • Write code that can be understood and leveraged by others, and meet the demands of the  business’s rapid growth;  

  • Provide support on questions about the consumer facing application implementation and  the tooling built around the app; and  

  • Mentor less-experienced members of the team by helping them with code review and  setting up best coding practices.  

  • May telecommute 

What we look for: 

  • Master’s degree or foreign equivalent in Computer Science, Computer Software  Engineering, Information Management or related field and 5 years of experience in the  following: 

  • Building software using modern programming languages such as Kotlin, Python, or  equivalent; 

  • Designing full stack software solutions that are robust, maintainable, and scalable;

  • Leveraging software engineering best-practices such as Source Control, Agile  Methodology, or Code Reviews to develop and deploy projects within an agreed upon  timeline; 

  • Debugging code issues utilizing logging and monitoring systems and stack trace analysis;

  • Writing technical specifications for software features, discussing tradeoffs and breaking  down complex concepts into actionable work items; 

  • Developing backend features including APIs (application programming interfaces), data  schemas, data stores, and algorithms; 

  • Ensuring code quality and system health via automated and manual test coverage,  debugging, and "on-call rotations"; and 

  • Participating in recruiting efforts via conducting interviews and writing or presenting  technical content. 

 

Base Pay Grade – N 

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 skills. 

Base pay is part of a total compensation package that may include equity rewards, monthly  stipends for health, wellness and tech spending, and benefits (including 100% subsidized medical  coverage, dental and vision for you and your dependents.)

USA base pay range (CA, WA, NY, NJ, CT) per year: $206,315 - $240,000

USA base pay range (all other U.S. states) per year: $206,315 - $219,000 

 #LI-DNI

Affirm is proud to be a remote-first company! The majority of our roles are remote and you can work almost anywhere within the country of employment. Affirmers in proximal roles have the flexibility to work remotely, but will occasionally be required to work out of their assigned Affirm office. A limited number of roles remain office-based due to the nature of their job responsibilities.

We’re extremely proud to offer competitive benefits that are anchored to our core value of people come first. Some key highlights of our benefits package include: 

  • Health care coverage - Affirm covers all premiums for all levels of coverage for you and your dependents 
  • Flexible Spending Wallets - generous stipends for spending on Technology, Food, various Lifestyle needs, and family forming expenses
  • Time off - competitive vacation and holiday schedules allowing you to take time off to rest and recharge
  • ESPP - An employee stock purchase plan enabling you to buy shares of Affirm at a discount

We believe It’s On Us to provide an inclusive interview experience for all, including people with disabilities. We are happy to provide reasonable accommodations to candidates in need of individualized support during the hiring process.

[For U.S. positions that could be performed in Los Angeles or San Francisco] Pursuant to the San Francisco Fair Chance Ordinance and Los Angeles Fair Chance Initiative for Hiring Ordinance, Affirm will consider for employment qualified applicants with arrest and conviction records.

By clicking "Submit Application," you acknowledge that you have read Affirm's Global Candidate Privacy Notice and hereby freely and unambiguously give informed consent to the collection, processing, use, and storage of your personal information as described therein.

Locations

  • Remote US, (Remote)

Salary

206,315 - 240,000 USD / yearly

Skills Required

  • Kotlinintermediate
  • Pythonintermediate
  • modern programming languagesintermediate
  • full stack software solutionsintermediate
  • Source Controlintermediate
  • Agile Methodologyintermediate
  • Code Reviewsintermediate
  • logging and monitoring systemsintermediate
  • stack trace analysisintermediate
  • APIs (application programming interfaces)intermediate
  • data schemasintermediate
  • data storesintermediate
  • algorithmsintermediate
  • automated and manual test coverageintermediate
  • debuggingintermediate
  • on-call rotationsintermediate

Required Qualifications

  • Master’s degree or foreign equivalent in Computer Science, Computer Software Engineering, Information Management or related field and 5 years of experience in the following: (experience)
  • Building software using modern programming languages such as Kotlin, Python, or equivalent (experience)
  • Designing full stack software solutions that are robust, maintainable, and scalable (experience)
  • Leveraging software engineering best-practices such as Source Control, Agile Methodology, or Code Reviews to develop and deploy projects within an agreed upon timeline (experience)
  • Debugging code issues utilizing logging and monitoring systems and stack trace analysis (experience)
  • Writing technical specifications for software features, discussing tradeoffs and breaking down complex concepts into actionable work items (experience)
  • Developing backend features including APIs (application programming interfaces), data schemas, data stores, and algorithms (experience)
  • Ensuring code quality and system health via automated and manual test coverage, debugging, and "on-call rotations" (experience)
  • Participating in recruiting efforts via conducting interviews and writing or presenting technical content (experience)

Responsibilities

  • Design and develop software for the consumer facing mobile and web application
  • Create tools and libraries that provide foundational functionality for, or in support of, the core consumer facing web and mobile applications
  • Maintain, improve, test, build, and release pipelines
  • Incorporate needs and opinions from stakeholders, advocating for ideas and initiatives
  • Provide guidance on core application architectural decisions and driving implementation
  • Work with engineers across the organization on project definition, technical specification, task break-down, delivery, monitoring, and maintenance
  • Generate designs for new functionalities that are robust, maintainable and scalable
  • Write code that can be understood and leveraged by others, and meet the demands of the business’s rapid growth
  • Provide support on questions about the consumer facing application implementation and the tooling built around the app
  • Mentor less-experienced members of the team by helping them with code review and setting up best coding practices
  • May telecommute

Benefits

  • general: Health care coverage - Affirm covers all premiums for all levels of coverage for you and your dependents
  • general: Flexible Spending Wallets - generous stipends for spending on Technology, Food, various Lifestyle needs, and family forming expenses
  • general: Time off - competitive vacation and holiday schedules allowing you to take time off to rest and recharge
  • general: ESPP - An employee stock purchase plan enabling you to buy shares of Affirm at a discount
  • general: monthly stipends for health, wellness and tech spending
  • general: benefits (including 100% subsidized medical coverage, dental and vision for you and your dependents)

Target Your Resume for "Senior Software Engineer" , Affirm

Get personalized recommendations to optimize your resume specifically for Senior Software Engineer. Takes only 15 seconds!

AI-powered keyword optimization
Skills matching & gap analysis
Experience alignment suggestions

Check Your ATS Score for "Senior Software Engineer" , Affirm

Find out how well your resume matches this job's requirements. Get comprehensive analysis including ATS compatibility, keyword matching, skill gaps, and personalized recommendations.

ATS compatibility check
Keyword optimization analysis
Skill matching & gap identification
Format & readability score

Tags & Categories

Consumer EngineeringConsumer Engineering

Answer 10 quick questions to check your fit for Senior Software Engineer @ Affirm.

Quiz Challenge
10 Questions
~2 Minutes
Instant Score

Related Books and Jobs

No related jobs found at the moment.