Software Engineer II

Company Description

Payarc is a technology-driven payments company built to empower people and improve their organizations, one payment at a time. What began as smart, simple payment-processing tools and products has grown into a broader platform, backed by a team of world-class experts and top technology talent. We help new businesses get started, increase our customers' revenues, and bridge the gap between merchants and modern payment solutions---giving companies the tools they need to change the future of their business.

The Software Engineer II is a mid-level engineering role responsible for designing, developing, testing, and maintaining scalable software solutions with limited guidance. This role owns features and components end-to-end and collaborates with cross-functional teams to deliver high-quality payment applications, services, and systems.

The Software Engineer II contributes across all phases of the software development lifecycle---from requirements analysis through deployment and ongoing support---and is expected to uphold Payarc's engineering standards and secure, PCI DSS-compliant data-handling practices.

• Design, develop, and maintain software applications, APIs, and backend services with limited guidance
• Build and integrate secure APIs and services, including payment-related functionality, in compliance with PCI DSS
• Write clean, maintainable, and well-documented code
• Participate in code reviews and pull requests---both giving and receiving constructive feedback---and follow engineering best practices
• Collaborate with product managers, UI/UX designers, and other engineers to deliver features that meet user and business needs
• Debug, test, and resolve technical issues of moderate complexity, including production defects surfaced through monitoring tools
• Contribute to system architecture and design discussions
• Optimize application performance, scalability, and reliability
• Ensure security, privacy, and data-protection standards are followed, including secure handling of sensitive and cardholder data
• Evaluate and adopt new technologies and tools that improve development efficiency
• Mentor and support Software Engineer I team members as needed
• Participate in Agile/Scrum ceremonies using JIRA and Confluence (as applicable)

Payarc engineers work across a broad, modern technology stack. Depending on the team and project, you may work with:

• Backend: PHP (Laravel, Nova, Apiato) and services in languages such as Java, C#, Python, Go, and C
• Frontend: JavaScript with React and Angular, plus jQuery; HTML5, CSS3, LESS/SASS;
  Material Design
• Mobile: native Android (Kotlin, Java) and iOS (Swift, Objective-C), with cross-platform work in React Native/Flutter; libraries such as Retrofit, OkHttp, and Firebase
• Data: relational databases (MySQL, Oracle, Firebird) and No
  
  SQL data stores
• Cloud & Dev Ops: Amazon Web Services (AWS), Git/Git Hub, CI/CD pipelines, Docker, and Kubernetes
• Payments & security: PCI DSS-compliant systems, encryption standards such as TDES and DUKPT, and integrations with POS systems, terminals (e.g., PAX, AMP), and Magtek card readers
• AI & machine learning: applied ML and LLM-based workflows in Python (Tensor Flow, PyTorch, scikit-learn), including vector databases and embeddings
• Collaboration & tooling: Agile/Scrum delivery with JIRA and Confluence, and application monitoring with tools such as Crashlytics and New Relic

• 2--4 years of professional software development experience
• Proficiency in one or more of Payarc's core languages and frameworks (e.g., PHP/Laravel, JavaScript with React or Angular, Java, C#, Python, or Kotlin)
• Experience building and consuming RESTful APIs and web services
• Experience with relational databases such as MySQL or Oracle
• Proficiency with Git/Git Hub, including pull requests and code reviews
• Strong problem-solving and analytical skills

• Experience with cloud platforms (AWS, Azure, GCP), with AWS preferred
• Familiarity with CI/CD pipelines
• Experience with containerization (Docker, Kubernetes)
• Knowledge of No
  
  SQL databases
• Mobile development experience (Android with Kotlin, Retrofit/OkHttp, Firebase) or applied AI/ML exposure
• Familiarity with PCI DSS and secure handling of cardholder data
• Exposure to encryption standards such as TDES and DUKPT
• Experience working in Agile environments with JIRA and Confluence

• Strong understanding of software design principles
• Ability to write efficient, scalable, and maintainable code
• Ability to work independently on features of moderate complexity
• Strong collaboration, communication, and interpersonal skills
• Ability to manage multiple tasks and deadlines
• Sound judgment and resourcefulness in solving problems
• Commitment to code quality, testing, and security
• Continuous learning mindset

• Bachelor's degree in Computer Science, Software Engineering, or a related field required (or equivalent practical experience).

This…