Senior Full-Stack Developer

HeroSoftware GmbH - Shopify Apps

. Plan, architect, and develop Shopify apps, plugins, and API integrations .

Posted 10/9/2026full-timeRemote • GermanySenior💰 €50,000 - €80,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive experience in full-stack development, particularly with JavaScript, TypeScript, React, Next.js, and Node.js. Proficient in building and integrating Shopify apps, ensuring code quality, performance optimization, and mentoring junior developers.

Highest-signal resume keywords

Full-Stack DevelopmentShopify App DevelopmentJavaScript ExpertiseCI/CD Pipeline ManagementAPI Integration

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

JavaScriptTypeScriptReactNext.jsNode.jsExpressMongoDBPostgreSQLMySQLAPI Design

Soft Skills

Team CollaborationMentoringSolution-Oriented Approach

Tools & Technologies

GitDockerCI/CDDevOps Workflows

Industry Keywords

ShopifyERP IntegrationPayment SystemsCRM IntegrationLogistics PlatformsOAuthJWTCORSPerformance OptimizationTechnical Documentation

Tech Stack

Tools & technologies

DockerERPGraphQLJavaScriptMongoDBMySQLNext.jsNode.jsPostgresReactTypeScript

About the role

Key responsibilities & impact

Plan, architect, and develop Shopify apps, plugins, and API integrations
Full-stack development with React, Next.js, Node.js, Express, and TypeScript
Integrate third-party systems such as ERP, payment, CRM, and logistics platforms via REST and GraphQL interfaces
Ensure performance, code quality, and scalability
Build responsive and accessible UI components
Conduct code reviews, unit, integration, and end-to-end testing, as well as debugging
Build and maintain CI/CD pipelines and technical documentation
Work closely with Design, Product, and QA teams
Mentor junior developers and help shape the technical roadmap

Requirements

What you’ll need

At least 5 years of experience in full-stack development
Advanced knowledge of JavaScript, TypeScript, React, Next.js, Node.js, and Express
Solid expertise in working with databases such as MongoDB, PostgreSQL, or MySQL
Experience with Git, CI/CD, Docker, and modern DevOps workflows
Understanding of UX/UI, API design, security (OAuth, JWT, CORS), and performance optimization
(Optional) Experience with Shopify app development, including Polaris, webhooks, OAuth, and the GraphQL API
Independent, structured, and solution-oriented approach to work
Enjoy working in a team, exchanging technical knowledge, and taking responsibility
Native-level German and good written and spoken English

Benefits

Comp & perks

30 days of annual leave
Birthday and Christmas Day off
Maximum ownership and trust
Motivated team and high-performance environment
Flat hierarchies with short decision-making paths
100% remote
Team events and off-sites
Premium Apple hardware
Performance-based commission in addition to the fixed salary