Senior Full-Stack (WordPress + React) Developer | Hybrid in Warsaw

DOU Polska; Warszawa; Hybrid; PLN 180,000 - 300,000; Full time

Benefits offered by this job

Competitive pay

Stability and long-term cooperation

Strong Fiverr Group backing

New team with room to shape its ways

Bi-weekly architecture discussions

AI-powered development support

Job summary

Digis, part of the Fiverr Group, is seeking an experienced web engineer to help scale a large SaaS funnel from Warsaw with a hybrid work model (3 days in the office). You will work on landing pages, payment integrations, and funnel experiments while modernizing portions of the stack toward React.

Ideal candidates have 5+ years of software development, 3+ years with Wordpress, 1+ year with ReactJS, and good English.

Qualifications

• 5+ years of general software development experience.
• 3+ years of hands-on experience with Wordpress.
• 1+ year of hands-on experience with ReactJS.
• English level: Upper-Intermediate or higher.

Responsibilities

• Create new landing pages and test paid vs. free funnel models.
• Integrate payment flows, including Stripe, into new funnel experiences.
• Develop and test alternate versions of existing flows for A/B testing.
• Integrate with Shopify and other external APIs used in the funnel.
• Support and extend the existing WordPress/PHP-based funnel when needed.
• Gradually migrate parts of the existing solution toward React and newer architecture.

Skills

general software development

English proficiency

Tools

WordPress

ReactJS

Stripe

Shopify

PHP

Job description

Digis is an international technology company, part of Fiverr (NYSE: FVRR), with 250+ specialists delivering high-load SaaS platforms, enterprise solutions, and cloud-native products for clients worldwide. We build long-term engineering teams and ensure transparency, stability, and professional growth for every talent.

About The Project

Large SaaS platform in the e-commerce domain that automates store operations for online sellers. The platform covers product importing, inventory and price synchronization, supplier integrations, order fulfillment automation, and marketplace management.

Hybrid work model: 3 days per week in the Warsaw office

Responsibilities

• Create new landing pages and test paid vs. free funnel models
• Integrate payment flows, including Stripe, into new funnel experiences
• Develop and test alternative versions of existing flows for A/B testing
• Integrate with Shopify and other external APIs used in the funnel
• Support and extend the existing WordPress/PHP-based funnel when needed
• Gradually migrate parts of the existing solution toward React and newer architecture

What we offer

• Competitive compensation package
• Long-term cooperation and stability
• Proven product with around 10 years of successful operation
• Strong company backing as part of the Fiverr Group
• New team built from scratch with room to shape its ways of working
• Bi-weekly engineering discussions on architecture, implementation, and knowledge sharing
• AI-powered development supported by the client, including Claude Code for coding, refactoring, PR reviews, and Jira/Confluence tasks

What we expect

• 5+ years of general software development experience
• 3+ years of hands-on experience with Wordpress
• 1+ year of hands-on experience with ReactJS
• English level: Upper-Intermediate or higher