Paychex

full-stack python engineer in HCM platforms

In short

Full-stack engineer role building backend services with Python/AWS Lambda and frontend features with React for Paychex's HCM platform, including GraphQL API work and AI-powered features. Hybrid position in Belgrade requiring 3+ years of full-stack experience with strong testing practices (BDD/TDD) and CI/CD (CircleCI, GitHub Actions). Involves close collaboration with Product and Design teams and production support.

About
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.
Responsibilities
•Build and deliver backend services and product features using Python and AWS serverless technologies (Lambda), with clean GraphQL API integrations.
•Participate in frontend development using React, MUI, and high-fidelity Figma designs to create intuitive and responsive user experiences.
•Collaborate with Product and Design teams to refine requirements, contribute to user stories, and support feature planning.
•Develop, consume, and integrate GraphQL APIs that power dynamic content and product functionality across the platform.
•Contribute to AI-powered features and intelligent automation initiatives, while applying sound judgment when working with AI-assisted solutions.
•Write clean, maintainable, and well-tested code while following established engineering best practices, including BDD/TDD where applicable.
•Work within a fully automated CI/CD environment using CircleCI and GitHub Actions.
•Help shape and enhance our design system while contributing to a scalable, component-based UI foundation.
Requirements
•3+ years of full-stack development experience, with a focus on Python and React.
•Strong testing and clean coding mindset (BDD, TDD, SOLID principles).
•DevOps-aware mindset, including experience working with CI/CD pipelines (CircleCI, GitHub Actions).
•Experience collaborating with cross-functional teams on product features, requirements, planning, and delivery.
•Experience supporting applications in production environments, including monitoring, troubleshooting, and issue resolution.
•Solid testing and verification mindset, with a focus on delivering reliable, high-quality software.
Nice to have
•Experience building and supporting distributed systems, including integrations with third-party services and designing for reliability and resilience.
•Experience using AI-powered development tools.
Conditions
•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
•Opportunity for strengthening expertise and skills through Paychex's learning platform, including lessons in English

Stop applying.
Get referred.

$10 in free credits

In just 60 seconds, fully on autopilot — Eraldt's AI agents read your CV, map the roles you fit, find live vacancies and the people who can refer you, write personal emails, and get you referred.

This isn't an application: your CV doesn't go to the company, and we don't promise a referral for this exact role.

Discover who else lands interviews on autopilot