Full Stack Software Engineer at Loenbro in Westminster, CO

Job description

• The Full Stack Platform Engineer designs, builds, and maintains full-stack software platforms and applications that improve operational efficiency, automate business processes, and support data-driven decision-making across Loenbro. This role partners closely with operations, IT, and business leaders to translate complex business challenges into scalable, secure, and practical software solutions that deliver measurable business value.
• We’re looking for an engineer who has built and shipped full-stack production systems end-to-end — spanning frontend, backend, and infrastructure. Experience building LLM-based or AI-powered applications is a strong bonus.

Responsibilities

• · Design, build, and maintain full-stack software applications and platforms — from frontend interfaces to backend services, APIs, and data layers — that improve business and operational performance.
• · Develop and maintain backend services, APIs, and data integrations using modern frameworks and enterprise technologies, incorporating large language models (LLMs) or AI capabilities where they add clear business value.
• · Architect and maintain integrations with core enterprise systems (ERP, HR, payroll) to support downstream platform and reporting initiatives.
• · Contribute to evolving internal engineering processes for AI-assisted development that govern how AI coding agents are utilized for production systems.
• · Create user-friendly interfaces, dashboards, and internal tools that enable adoption of new platforms and systems across technical and non-technical teams.
• · Evaluate emerging technologies, including AI/LLM tooling, and contribute to Loenbro's long-term platform architecture, engineering standards, and technology roadmap.

Requirements

• · Bachelor's degree in Computer Science, Engineering, or a related technical field
• · 3+ years of experience in software engineering, data engineering, data science, or a related technical discipline working with modern frontend and backend technologies
• · Demonstrated experience building and shipping full-stack production applications, including frontend UI (e.g., React or similar) and backend services/APIs (e.g., Node.js, Python or similar), across the full development lifecycle.
• · Experience designing, developing, and deploying solutions using modern cloud platforms and services (Azure, AWS, Google Cloud, or similar); experience with LLM-based APIs or AI services is a plus.
• · Strong working knowledge of relational databases and SQL, including schema design, query optimization, and data modeling (PostgreSQL, SQL Server, or similar).
• · Proficiency with modern engineering practices, including Git-based version control, code review, automated testing, and CI/CD pipelines.
• · Experience building and deploying LLM-based or AI-powered applications, agents, or agentic workflows in production.
• · Experience with mobile app development, including React Native and Expo.
• · Experience with enterprise data architecture or ERP.
• · Knowledge of AI governance, data security, and responsible AI practices.
• · Experience building software for construction, industrial field operations, finance or operationally complex, non-tech industry.

Skills

Required

• Full-stack development
• Frontend UI development (e.g., React)
• Git-based version control
• Code review
• Automated testing
• CI/CD pipelines

Preferred

• LLM-based or AI-powered applications
• Enterprise data architecture or ERP

Benefits

• Loenbro offers a competitive salary, comprehensive benefits package, and rewards to those who join our team:
• · Medical, dental, and vision insurance
• · 401(k) retirement plan with company match
• · Paid time off (PTO) and holiday pay
• · Life and disability insurance
• · Professional development and training opportunities
• · Employee assistance program (EAP)
• Benefits eligibility may vary based on employment classification and hours worked.
• $80,000 - $130,000 USD