Plugins Expert

TAP; United States; Remote; USD 120,000 - 190,000; Full time

Job summary

TAP is seeking a seasoned software engineer to build and support payment integrations that connect online stores to payment services. The role covers PHP plugins, Shopify apps, payment APIs, testing, and production support across e-commerce platforms.

You will develop and maintain plugins, connect to APIs and webhooks, investigate issues, and contribute to code reviews and documentation. Fluency in English and a collaborative mindset are essential.

Qualifications

• Five+ years of professional software development experience with payment gateway tech.
• Strong PHP skills and hands-on Shopify development experience.
• Experience with REST APIs, webhooks, JSON, Git, and relational databases.

Responsibilities

• Develop, maintain, and improve e-commerce plugins and Shopify integrations.
• Connect platforms to payment APIs, SDKs, and webhooks; support payments.
• Investigate integration problems and resolve production issues.
• Create automated tests and support reliable releases.
• Collaborate with cross-functional teams to improve reliability.

Skills

English proficiency

Tools

PHP

Shopify

REST APIs

JSON

Webhooks

Git

SQL

Job description

Role overview

Build and support payment integrations that help merchants connect online stores to payment services. The work spans PHP plugins, Shopify apps and integrations, payment APIs, testing, documentation, and production troubleshooting across e-commerce platforms.

Responsibilities

• Develop, maintain, and improve e-commerce plugins and Shopify integrations, keeping them compatible with platform changes.
• Connect platforms to payment APIs, SDKs, and webhooks; support authorization, capture, refunds, voids, and payment status updates.
• Investigate integration problems reported by merchants, partners, and internal teams, and help resolve production issues.
• Create automated tests and support reliable releases across supported platforms.
• Work with engineering, product, quality, operations, and partner teams to improve integration reliability and usability.
• Maintain technical documentation, participate in code reviews, and improve performance and developer tools.

Requirements

• At least five years of professional software development experience, including work with a payment gateway, payment provider, fintech, acquiring, or related payment technology.
• Strong practical PHP skills and hands-on Shopify development experience, including APIs, apps or integrations, and webhooks.
• Experience building and maintaining e-commerce plugins, extensions, modules, or apps.
• Understanding of online payment flows and concepts such as authorization, capture, refunds, tokenization, recurring payments, and 3DS.
• Experience with REST APIs, JSON, authentication, webhooks, HTTP, Git, SQL, and relational databases.
• Strong troubleshooting and analytical skills, ability to work independently and collaboratively, and excellent spoken and written English.