Full-Time Senior Full Stack Composable Commerce Developer

McFadyen Digital is seeking a Technical Lead (MACH) to join our team.

Responsibilities:

• Architect and implement modular, scalable solutions using MACH principles
• Develop and integrate APIs (REST/GraphQL) from headless commerce, CMS, PIM, and payment platforms
• Build and deploy microservices using containerized or serverless technologies
• Define infrastructure-as-code (IaC) and CI/CD pipelines for MACH environments
• Ensure high performance, security, and maintainability of distributed systems
• Collaborate with frontend engineers to integrate headless frameworks (e.g., Next.js, Frontastic, Vue Storefront).
• Build backend-for-frontend (BFF) layers and orchestrate complex service interactions
• Contribute to solution architecture and technical discovery workshops for clients.
• Lead root cause analysis and resolution of system issues across environments.

Qualifications:

• Deep knowledge of MACH architecture (Microservices, API-first, Cloud-native, Headless).
• Experience leading technical teams in Agile environments (Scrum, Kanban, or SAFe).
• Strong object-oriented programming and system design skills.
• Hands-on expertise in headless commerce systems and composable architectures.
• Strong collaboration, communication, and mentorship skills.
• Experience with composable commerce platforms like Adobe SAAS, commercetools, Elastic Path, or BigCommerce.
• Proficient in building and consuming APIs (REST/GraphQL).
• Cloud platform experience (AWS, Azure, or GCP).
• Hands-on with Docker, Kubernetes, and/or serverless frameworks (e.g., AWS Lambda).
• Familiarity with CI/CD, Git, Terraform, and DevOps best practices.
• Knowledge of frontend ecosystems: JAMstack, MEAN, MERN, and headless CMS.

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