Principal eCommerce Engineer; no C2C

Principal eCommerce Engineer (no C2C) #981834

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This range is provided by Dexian. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

$/yr - $/yr

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Mid-Senior level

Full-time

Information Technology

Permanent or contract to hire (We are serious about converting this role to a permanent position)

NO SUBCONTRACTORS OR THIRD-PARTY FIRMS, PLEASE.

W2 EMPLOYEES ONLY

We seek a lead or Principal-level backend engineer who has some experience in the eCommerce applications for a well-established firm in Addison, IL. This role will become a permanent position after a short initial contract phase. Only those seeking full-time/permanent employment should apply.

• 15+ years of industry experience, with a strong focus on scalable backend systems, cloud technologies, and microservices development.
• Extensive experience in building and scaling backend systems for eCommerce and large-scale distributed applications. Exposure to headless commerce, marketplaces (Mirakl), and API-driven commerce solutions.
• Expert knowledge of backend technologies and their trade-offs, including Node.js, Type Script, Python, and Go
  . Familiarity with modern frameworks such as NextJS, Fastify, Express, and Hapi.js.
• Strong experience with databases and caching solutions, including Postgre
  
  SQL, MySQL, Mongo
  
  DB, Redis, Dynamo
  
  DB, and Elastic Search.
• Deep understanding of microservices architecture, including event-driven design, API gateways, service mesh (Istio, Linkerd), and inter-service communication patterns.
• Advocate for high-quality engineering practices, with hands-on experience in unit, integration, and contract testing using tools like Jest, Mocha, Chai, Cypress, Pact, and Postman.
• Proficiency in cloud platforms and cloud-native methodologies, including serverless computing (AWS Lambda, Azure Functions), Kubernetes (K8s, K3s), and containerization.
• Hands‑on experience with CI/CD pipelines, infrastructures as code (Terraform, Pulumi), and deployment automation.
• Understanding of REST, Graph
  
  QL, and event-driven architectures using Kafka, NATS, Rabbit
  
  MQ, and AWS Event Bridge.
• Expertise in observability, distributed tracing, and APM tools like Open Telemetry, Prometheus, Grafana, Datadog, New Relic, and Dynatrace
  .
• Strong understanding of authentication and authorization best practices, including OAuth2, OpenID Connect, JWT, API key management, and Zero Trust security models.
• Experience in performance optimization of backend services, database queries, caching strategies, and load balancing.
• Knowledge of diagramming and collaboration tools (e.g., Miro, , Fig Jam, Mermaid.js).
• Strong communication and leadership skills, capable of mentoring engineers and collaborating across teams.

• Own the backend architectural artifacts
  • Define and maintain the architecture for cloud-native, scalable and resilient microservices.
  • Ensure seamless interoperability across platforms and services, including commerce, CMS, ERP, PIM, and marketing systems.
  • Establish architectural best practices for modularization, API design and service‑to‑service communication (REST, Graph
    
    QL, gRPC, event‑driven architectures).
• Drive implementation‑level architecture
  • Design, secure, scalable and high‑performance backend services leveraging Node.js, Type Script, and other modern backend technologies. Advocate for serverless, containerization (Docker, Kubernetes) and cloud‑native best practices.
  • Contribute to and maintain Architecture Decision Records (ADR) for microservices and cloud‑based systems.
• Own backend engineering policies, procedures and standards
  • Establish CI/CD best practices with automated testing, linting, and deployment strategies for microservices.
  • Drive adoption of API‑first, event‑driven architectures and domain‑driven design (DDD).
  • Define and enforce backend tooling standards (frameworks, ORMs, performance profiling, logging).
• Own platform & backend operational practices
  • Lead disaster recovery and high‑availability strategies for microservices.
  • Define logging, tracing, and observability best…