Senior Software Engineer - Payments

Posted 3 Days Ago
Be an Early Applicant
2 Locations
Hybrid
Senior level
Financial Services
The Role
Design, build, test, deploy, and maintain scalable, secure backend services and Vue.js frontends. Develop RESTful APIs and microservices, optimize PostgreSQL databases, collaborate across teams, participate in architecture and code reviews, and mentor engineers.
Summary Generated by Built In
About PayJoy
 
PayJoy, a Public Benefit Corporation, is a mission-first credit provider dedicated to helping under-served customers in emerging markets to achieve financial stability and success.  Our patented technology for secured credit provides an on-ramp for new customers to enter the credit system.  Through PayJoy’s point-of-sale financing and card offerings, customers gain access to a modern quality of life.  PayJoy’s credit also allows our customers to seize opportunities as micro-entrepreneurs, and acts as insurance for tough times. Through our cutting-edge machine learning, data science, and anti-fraud AI, we have served over 18 million customers as of 2025 while achieving solid profitability for sustainable growth.
 
This role

We are looking for a Senior Software Engineer to design, develop, and maintain scalable, secure, and high-performance applications. The ideal candidate has strong experience building backend services with Django, developing modern web applications with Vue.js, designing RESTful APIs, and implementing microservices that support high-volume, mission-critical systems.

Responsibilities

  • Design, develop, test, deploy, and maintain scalable applications using Django and Vue.js.
  • Build and maintain RESTful APIs, microservices, and integrations with internal and external systems.
  • Design, optimize, and maintain PostgreSQL databases, ensuring performance, scalability, and data integrity.
  • Collaborate closely with Product, Design, QA, and Engineering teams to deliver high-quality software solutions.
  • Participate in architecture discussions, code reviews, testing, and Agile ceremonies.
  • Write clean, maintainable, well-documented code and contribute to continuous improvements in engineering practices.
  • Mentor other engineers and support knowledge sharing across the team.

Requirements

  • Bachelor’s degree in Computer Science, Software Engineering, or a related technical field.
  • 7+ years of professional experience as a Software Engineer.
  • Strong proficiency in software engineering principles, design patterns, and modern development practices.
  • Strong experience developing backend applications using Python.
  • Experience building scalable backend services, RESTful APIs, and distributed systems.
  • Strong experience working with relational databases such as PostgreSQL, MySQL, or similar SQL databases, including schema design, query optimization, and performance tuning.
  • Experience developing frontend applications using Vue.js and modern JavaScript.
  • Experience designing and implementing microservices and service-oriented architectures.
  • Experience integrating internal and third-party APIs.
  • Proficiency with Git for version control.
  • Experience working with Docker and Kubernetes.
  • Experience with automated testing, test-driven development (TDD), and code reviews.
  • Experience documenting software functionality and reviewing the work of other engineers.

Benefits

  • Bachelor's degree in Computer Science, Software Engineering, or a related technical field.
  • 7+ years of professional experience as a Software Engineer.
  • Strong experience with Django, PostgreSQL, Vue.js, REST APIs, and microservices.
  • Experience with Docker, Kubernetes, Git, and CI/CD pipelines.
  • Experience with automated testing, Test-Driven Development (TDD), and code reviews.
  • Experience building scalable, high-performance applications and working with distributed systems.
  • Experience in Payments, FinTech, or other high-volume transactional environments is highly desirable.
  • Strong analytical, problem-solving, communication, and collaboration skills, with the ability to thrive in a fast-paced Agile environment.

PayJoy is proud to be an Equal Employment Opportunity employer and we welcome and encourage people of all backgrounds. We do not discriminate based upon race, religion, color, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics.
 
PayJoy Principles
 
Finance for the next billion * Ownership * Break Through Walls * Live Communication * Transparency & Directness * Focus on Scale * Work-Life Balance * Embrace Diversity * Speed * Active Listening

Skills Required

  • Bachelor's degree in Computer Science, Software Engineering, or related technical field
  • 7+ years of professional experience as a Software Engineer
  • Strong proficiency in software engineering principles, design patterns, and modern development practices
  • Strong experience developing backend applications using Python
  • Experience developing backend applications using Django
  • Experience developing frontend applications using Vue.js and modern JavaScript
  • Experience building scalable backend services, RESTful APIs, and distributed systems/microservices
  • Experience designing and optimizing PostgreSQL, MySQL, or similar SQL databases (schema design, query optimization, performance tuning)
  • Experience integrating internal and third-party APIs
  • Proficiency with Git for version control
  • Experience with Docker and Kubernetes
  • Experience with automated testing, Test-Driven Development (TDD), and participating in code reviews
  • Experience with CI/CD pipelines
  • Experience in Payments, FinTech, or high-volume transactional environments

PayJoy Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about PayJoy and has not been reviewed or approved by PayJoy.

  • Fair & Transparent Compensation Pay is considered market‑aligned for senior U.S. technical roles, and public salary bands help candidates benchmark and align expectations. Feedback suggests this transparency supports confidence that offers are competitive for role and location.
  • Healthcare Strength Company‑paid basic medical, dental, vision, life, and disability coverage is emphasized as a standout element versus many startups. Feedback suggests this reduces out‑of‑pocket burden and strengthens the core benefits foundation.
  • Parental & Family Support Paid parental leave and flexible hours are highlighted alongside dedicated time off. Feedback suggests these family‑oriented policies enhance the perceived completeness of the package.

PayJoy Insights

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The Company
HQ: San Francisco, CA
617 Employees
Year Founded: 2015

What We Do

PayJoy's mission is to deliver access to credit to the next billion people in emerging markets worldwide. Our unique mobile security technology gives customers the ability to afford their first smartphone on credit, using the phone itself as collateral, and then provides further access to credit to help weather life's unexpected financial surprises and climb the ladder of economic well-being. Founded in 2015, today PayJoy has reached millions of customers in a dozen countries around the globe, including Mexico, Brazil, Colombia, India, Kenya, and South Africa, and is on a strong growth path with support from major industry partners to bring credit to the next billion emerging consumers.

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