Full-Stack Commerce Platform Engineer

dentsu•New York, NY

1d•Hybrid

About The Position

You will play a key role in building modern, secure, and scalable enterprise applications that power real business outcomes. This role is ideal if you enjoy owning work end‑to‑end, shaping application foundations, and seeing your ideas move quickly from concept to production. You will work across the full stack—backend services, APIs, frontend experiences, and local development environments—while partnering closely with product, design, data, DevOps, and business stakeholders. Your work will set the technical direction and patterns that other engineers build on.

Requirements

5+ years of professional software development experience across frontend and backend
Strong hands‑on experience building production applications with Python
Experience developing APIs with FastAPI or similar frameworks
Solid experience building React applications with TypeScript
Experience designing full‑stack applications from initial architecture to production
Hands‑on experience with Docker and local development environments
Experience working with authentication, authorization, and secure application patterns
Comfort collaborating with distributed teams and multiple disciplines
Python (modern backend development and async programming)
FastAPI (dependency injection, middleware, API design)
React and TypeScript (hooks, component architecture, state management)
REST API design and integration
Authentication and authorization (OAuth 2.0, OIDC, RBAC)
SQL databases (e.g., PostgreSQL)
Docker and Docker Compose
Git‑based workflows and code reviews
Testing across frontend and backend

Responsibilities

Full‑stack application development
Design, build, and maintain enterprise applications using Python on the backend and React + TypeScript on the frontend
Translate business and product needs into scalable, maintainable application architectures
Establish strong foundations for application structure, security, testing, and developer experience
Build production‑ready application skeletons and core workflows that teams can extend over time
Define and document clear API contracts, data flows, and integration patterns
Backend & API engineering
Build and optimize backend services using FastAPI and modern Python frameworks
Design RESTful APIs with strong validation, versioning, and documentation
Implement authentication and authorization using OAuth 2.0 / OIDC, RBAC, and enterprise identity providers
Develop reliable, high‑performance services with clear error handling and observability
Design database schemas and data access layers (e.g., PostgreSQL)
Frontend development
Build accessible, responsive React applications using TypeScript
Create reusable component architectures and scalable UI patterns
Implement secure authentication flows and protected routes
Develop intuitive interfaces for dashboards, forms, admin tools, and data‑driven experiences
Optimize performance through modern frontend best practices
Containerization & delivery foundations
Containerize services using Docker with secure, maintainable builds
Set up Docker Compose local environments for multi‑service applications
Partner with DevOps to support CI/CD pipelines and cloud deployments
Help ensure applications are ready for cloud‑native environments
Collaboration & technical leadership
Partner with engineers, designers, product managers, and business teams
Lead early technical implementation and influence architectural decisions
Share knowledge, mentor teammates, and contribute to engineering standards
Communicate technical decisions clearly to both technical and non‑technical audiences