Senior Full-Stack Python Engineer

Paychex is reimagining how businesses manage their workforce by bringing payroll, HR, benefits, and advisory services together into a single connected HCM platform. As Paychex and Paycor come together, we're combining innovative technology, data-driven insights, AI, and human expertise to help organizations work smarter, support their people, and achieve better business outcomes. This is an exciting time to join our team as we continue to invest in innovation, simplify client experiences, and shape the future of work. At Paychex, you'll have the opportunity to grow your career, make a meaningful impact, and be part of something bigger as One Paychex.

Responsibilities

• Own full stack feature delivery with Python on AWS serverless (Lambda) and clean GraphQL API integration.
• Strong experience building and maintaining modern frontend applications using React, with a focus on performance, scalability, and maintainable code.
• Work closely with Product and Design Agency to define roadmaps, create epics & stories,
• Architect and integrate GraphQL APIs to power dynamic content and product experiences across the platform.
• Collaborate on AI-powered features and intelligent automation interfaces, with rigor in verifying AI-assisted work.
• Integrate with our fully automated CI/CD pipeline (CircleCI, GitHub Actions).
• Help shape our design system and contribute to a scalable, componentized UI foundation.

Qualifications

• 5+ years full stack development experience - focus on Python/AWS serverless and React.
• Strong testing and clean coding mindset (BDD, TDD, SOLID).
• DevOps-aware mindset (CI/CD with CircleCI and GitHub Actions, observability with Datadog or equivalent, rollback readiness).
• Experience leading product delivery: roadmaps, epics, planning, collaboration.
• Experience building and supporting distributed, event-driven systems, including integrations with third-party services and designing for resilience and failure recovery.
• Strong sense of production ownership, including deployment, monitoring, incident management, and operational support.
• Solid testing and verification mindset, with a focus on delivering reliable, high-quality software in environments where accuracy and correctness are critical.
• Experience using AI-powered tools.

What's in it for you?

• A flexible work philosophy
• Company paid private health insurance
• Company paid life and disability insurance
• Paid leave for illness, birth parents, non-birth parents, elder caregivers, marriage, adoption of a child and bereavement
• Inclusive and accessible Employee Assistance Program (EAP) to help with everyday challenges
• Christmas and Easter bonuses