Freelance L2 Web Application Support Engineer (m/w/d)
Core
L2 support engineer for a worldwide composable e-commerce platform, bridging Japanese and European teams to handle complex incidents, troubleshooting, and service delivery.
Role type
Senior L2 Web Application Support Engineer
Builds
Supports in-house customer-facing digital products and e-commerce flows (order lifecycle, payments, catalog, search).
Domain
E-commerce, Web Applications, International Support
Required skills
L2 web application support, JavaScript, TypeScript, React/Next.js, Git, CI/CD, Microservices, REST APIs, AWS (Lambda, SQS), MySQL, MongoDB, E-commerce domain knowledge, ITIL, Ticketing tools
Preferred skills
Vercel, Fluent Commerce, Adyen, Contentful, Algolia, Azure Entra ID, Auth0, Grafana, Sentry, AI assistants, Technical certifications
Technologies
JavaScript, TypeScript, React, Next.js, Git, GitHub, GitLab, AWS, Lambda, SQS, MySQL, MongoDB, Postman, Insomnia, ServiceNow, Jira, Remedy, Vercel, Fluent Commerce, Adyen, Contentful, Algolia, Talon.One, Dynamic Yield, Azure Entra ID, Auth0, Grafana, Sentry, Dash0, Microsoft Copilot, Claude
Responsibilities
Investigate and resolve complex incidents across CMS, product catalog, user authentication, order management, and payment systems; Analyze data and adapt configurations; Act as the primary bridge between Japanese and European support teams; Manage incident escalations and coordinate with L2/L3 teams; Monitor service quality, KPIs, and ticket backlog; Contribute to root cause analysis and problem management; Maintain operational documentation and knowledge articles.
Seniority
Senior, hands-on IC
