Full Stack Developer – Shopify Focus

PACCO

Full Stack Developer focusing on Shopify to build and enhance a robust B2B platform for resellers. Responsible for technical leadership from architecture to implementation.

Posted 4/14/2026full-timeBarueri • 🇧🇷 BrazilMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

ERPGraphQLJavaScriptNode.jsPython

About the role

Key responsibilities & impact

Develop and evolve a B2B platform integrated with the Shopify ecosystem;
Customize and optimize Shopify themes using Liquid, HTML, CSS and JavaScript, ensuring performance and a strong user experience;
Design and implement integrations via APIs (REST/GraphQL) with external systems such as ERP, payment gateways and logistics, including the use of webhooks;
Develop and maintain backend services (Node.js, Python or similar) to support business rules not native to Shopify;
Implement B2B features such as: customer authentication and management, price lists and commercial conditions by profile, bulk order processing and custom checkout rules;
Ensure application performance (Core Web Vitals), security (authentication, validations, rate limiting) and scalability;
Contribute to defining the solution architecture, considering decoupling between Shopify and external services;
Work collaboratively with Product, CX and stakeholders, translating business needs into technical solutions;
Document integrations, flows and technical decisions, ensuring code standardization and maintainability;

Requirements

What you’ll need

Proven experience with Shopify development (themes + APIs);
Customization using Liquid;
Experience building or consuming REST/GraphQL APIs;
Experience with system integrations;
Solid knowledge of JavaScript;
Experience with version control (Git);
Strong problem-solving skills;
Architectural mindset (not just execution);
Experience in environments with complex business rules;
Technical autonomy and an ownership mentality.

Benefits

Comp & perks

Medical and Dental Insurance;
Commuter/Transportation allowance;
Meal allowance;
Total Pass;
Life Insurance;
Weekly workplace exercise/stretching sessions;
Annual bonus based on goals and performance evaluation;
Partnerships with universities;
On-site cafeteria with fresh fruit daily;
Wellness and quality-of-life initiatives;
Employee discount on product purchases;
Birthday gift card.

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

Shopify developmentLiquidHTMLCSSJavaScriptREST APIsGraphQL APIsNode.jsPythonGit

Soft Skills

problem-solvingarchitectural mindsettechnical autonomyownership mentalitycollaboration