Senior Software Backend Engineer

About this role

SmartCommerce is looking for a Senior Software Backend Engineer to design, build, and maintain scalable backend systems spanning database architecture, middle-tier services, and data processing/ETL pipelines that power our commerce platform and client integrations. This role combines deep backend engineering with hands-on data engineering and stream processing responsibility, and serves as a senior technical contributor and production support owner for the systems they build.

Job Title: Senior Software Backend Engineer

Department: Engineering

Reports to: Director of Engineering

Experience Required: Demonstrated experience in designing, developing and maintaining backend services and APIs. Must have AI proficiency and experience with AWS.

Salary Range: $160-$180K

Supervisory/Training Responsibilities: This role does not supervise/manage others. This is an Individual Contributor role.

Schedule: 8:00AM – 5:00PM ET.

Job Location: Remote in United States.

Responsibilities:

•    Design, develop, and maintain backend services and APIs using PHP, Node.js, and React.js across the middle tier

•    Design and optimize database schemas and queries in MySQL, and implement caching strategies using Redis

•    Build and maintain ETL and data pipelines using Airflow, working with Parquet-formatted data feeding into Redshift and Databricks

•    Design and implement stream processing solutions using Kafka

•    Architect and operate scalable, high-availability systems deployed on AWS

•    Provide production support and participate in an on-call rotation as needed

•    Collaborate with cross-functional partners in Product, Data, and QA to translate requirements into technical solutions

•    Write clean, tested, well-documented code and actively participate in code reviews

•    Leverage AI coding tools (Claude, Cursor, Codex, Gemini, etc.) to accelerate development and improve code quality

•    Mentor other engineers on backend and data engineering best practices

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