L

Lago

Open-source API-first metering and billing platform

Full Stack Developer – Senior Shopify Hydrogen Developer

Full-Stack EngineeringConfirmed live in the last 24 hours
Full-timeNo salary listed

About the Job

Requirements

  • At least 3 years of experience building custom eCommerce storefronts using Shopify Hydrogen, React, and React Router.
  • Proven experience developing headless commerce solutions and implementing complex frontend functionality.
  • Hands-on experience maintaining and extending Python/Django applications.
  • Deep understanding of GraphQL APIs, REST integrations, and data synchronization between platforms such as Shopify, ERP, CRM, and PIM systems.
  • Demonstrated success migrating legacy applications to modern architectures with minimal business disruption.
  • Experience working with monolithic codebases and integrating multiple business systems while maintaining data integrity.
  • Experience building and managing CI/CD pipelines, deployment workflows, and cloud-hosted applications.
  • Familiarity with Shopify Oxygen, edge platforms, containerized deployments, environment configuration, and infrastructure troubleshooting.
  • Experience with Shopify GraphQL Admin and Storefront APIs, including the ability to write, debug, and optimize complex queries.
  • Ability to self-direct on clear technical tasks while recognizing when to escalate ambiguous requirements or architectural trade-offs.
  • Strong English communication skills and ability to explain technical constraints to non-technical team members.
  • Availability to work full-time, 40 hours per week.

Responsibilities

  • Build and maintain fully custom Shopify Hydrogen storefronts using React Router, implementing complex commerce features and headless integrations.
  • Implement responsive user interfaces using HTML, CSS, and modern React, and own frontend performance across all storefronts.
  • Manage migrations from legacy frontends, including one Shopify Liquid storefront and two Django-based storefronts, to Hydrogen while maintaining data integrity and minimizing business disruption.
  • Debug and optimize the full data flow from React components through GraphQL to backend systems.
  • Extend and maintain Python/Django code powering GraphQL API integrations between Shopify and the internal PIM/ERP/CRM monolith.
  • Build custom middleware and integrations when standard Shopify features do not work with the headless stack, such as custom feed generators for syndication and Algolia reindexing logic.
  • Modify data exchange layers and API endpoints as business requirements evolve.
  • Navigate and enhance the monolithic Django codebase without breaking existing functionality.
  • Manage software-defined infrastructure for Hydrogen deployments, including building CI/CD pipelines, configuring environments, and automating releases to Oxygen or similar edge platforms.
  • Own the deployment toolchain from local development through production.
  • Troubleshoot deployment and infrastructure issues across the stack.
  • Translate ambiguous business requests into technical approaches, assessing whether they call for a quick change, custom integration, or architectural discussion.
  • Identify requirements involving core architecture, significant data migration, or business implications that need CTO input, and escalate strategically.
  • Communicate technical constraints to non-technical stakeholders clearly.

Desired Qualifications

  • Experience working in environments where standard Shopify features require custom implementations.
  • Experience migrating Shopify Liquid storefronts to Hydrogen.
  • Experience managing large-scale product catalogs of 100,000 or more SKUs and SEO-sensitive migrations.
  • Familiarity with feed syndication, search integration such as Algolia, or headless CMS workflows such as Storyblok.
  • React Router experience outside Hydrogen contexts.

About the Company

Lago

Open-source API-first metering and billing platform

Lago provides an open-source, API-first platform for metering and usage-based billing designed for complex pricing models. It processes high-volume event data to handle real-time metering, subscription management, entitlements, credits, invoicing, and revenue analytics, and integrates with Stripe, CRMs, and ERPs; it is the central billing logic, not a payment processor. Lago differentiates itself with an open-core model (free AGPLv3 self-hosted) plus paid cloud and premium self-hosted deployments, offering transparency and control to reduce vendor lock-in. Its goal is to help AI, SaaS, and API-first businesses monetize complex pricing at scale with a flexible, scalable billing infrastructure.

Company size
11-50
Company stage
Not listed
Total funding
Not listed
Headquarters
Not listed
Founded
2024

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