Staff Engineer

Cullerton Group has a new opportunity for a Senior Staff Software Engineer with our customer, the largest distributor of building supplies in the United States. This is a permanent position offering a base salary of $160,000 per year plus a 20% annual bonus. The role will be performed on a hybrid schedule — onsite 1–3 days per week, with the remaining days remote.

The Senior Staff Software Engineer will serve as a technical leader within the engineering organization, driving the design, development, and implementation of scalable, modern software solutions. This position requires deep technical expertise in system architecture, API development, and cloud-based integration. The successful candidate will collaborate with architects, product owners, and engineering managers to deliver reliable, high-performance systems aligned with business strategy.

Responsibilities

• Lead the design, development, and deployment of scalable backend and frontend applications.
• Define and maintain domain architecture to ensure system modularity, maintainability, and performance.
• Build and integrate APIs (REST, SOAP, and event-driven) across enterprise systems using modern integration methods.
• Develop and maintain solutions leveraging MuleSoft, DataWeave, RabbitMQ, and Azure cloud environments.
• Collaborate with architecture and product teams to ensure alignment with enterprise and solution design principles.
• Embed automated testing practices, including TDD, BDD, and CI / CD pipelines, to ensure software reliability and continuous delivery.
• Apply Domain-Driven Design (DDD) and Event-Driven Architecture principles to ensure scalability and clarity in system design.
• Mentor and guide engineers, promoting a culture of technical excellence and continuous improvement.
• Support production systems through proactive monitoring, debugging, and issue resolution.
• Partner with business stakeholders to translate complex requirements into actionable, high-quality technical solutions.

Required Qualifications

Preferred Qualifications