Senior AI Engineer

About Us:

Rex Moore continues to be powered by amazing employees just like you for over 100 years. Together we are building a world that is safe, comfortable, and sustainable. Our diverse team of experts spreading to National territories create innovative, integrated solutions to make cities more connected, buildings more intelligent and environments more comfortable and secure.

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Job Overview:

This is a hands-on role with three parts: building automations and AI workflows, running our company AI tools, and advising on where AI goes next at Rex Moore. Your first priority is building the foundation: our AI and automation platform and the architecture the rest of the work runs on. After that, most of your time is spent building. You will own each solution through its full lifecycle: discover the problem, build the solution, run it after launch, and keep improving it. You will be judged on one thing: did someone's work week measurably change because of what you shipped.

This is not a help desk, strategy-only or prompt-writing role. We are not tied to one vendor; you choose the right tool for each problem. You build, ship and support what you build, working with data engineering, IT and compliance within IT's security and governance standards. The Director sets direction, and your recommendations, grounded in what you have built and measured, shape it.

What Success Looks Like

• In 90 days, you have set up our AI and automation foundation (model routing, a workflow automation platform, and enterprise AI tool settings and user groups) and taken over our existing automations.

• In six months, our AI architecture is documented and in use: which tools and models handle what, how data moves between them, and who has access. Our AI usage policies are in place with IT.

• In one year, multiple departments rely on your work, you can show hours of manual work saved each month, and your recommendations are shaping where we invest in AI next.

Key Responsibilities and Essential Tasks

• Foundation: In partnership with IT, set up our enterprise AI and automation platform, including model routing, workflow automation, and enterprise AI tool settings, user groups and access

• Discover: Embed with teams like estimating, prefabrication and field operations, map how work gets done, and find where automation saves the most time

• Build: Deliver automations and AI tools from pilot to production, including AI agents, sub-agents, agent skills and MCP connections that work safely with our internal data. Examples: a bid analysis tool that shows which jobs performed well and why, and a Rex Moore AI assistant that answers questions from our own documents and data

• Integrate: Connect business systems, including our new ERP and CRM, using APIs, webhooks, workflow automation platforms and Python, and keep data clean at the source

• Run and improve: Monitor, troubleshoot and measure what you launch, and turn one-off fixes into reusable tools

• AI tools: Manage connectors, skills and shared prompt libraries; track usage, cost and quality; and set best practices for safe, effective use

• Governance: Partner with IT and compliance to set and maintain our AI usage policies: what data can be used with which tools, how new tools and models are approved, and how use is monitored

• Enablement: Train and support department champions so AI use spreads beyond early adopters, and mentor IT staff moving into engineering roles

• Direction: Evaluate new AI tools and models, including custom or self-hosted models where outside AI is restricted, and recommend what to adopt, expand or retire based on results

What's in it for You?

We're growing and need people excited about honing their craft and developing their career. If you're ready to push your skill level, learn something new every day, and be part of tomorrow's energy source, join the Rex Moore Family.

Some of the benefits you may be eligible for as an employee are:

• Health Benefits

• 401(k) with Company Match

• Life and Disability Benefits

• Paid Holidays & Paid time off

• Access to multiple types of training

• Opportunities for Self-development and Career Progression

• Wellness Benefits & Employee Assistance Program

• Family Leave (Maternity, Paternity)

• Tuition Reimbursement Program

Career Advancement:

At Rex Moore, we provide amazing job opportunities for growth with competitive salaries and benefits in an exciting, dynamic, fast-paced, and fun workplace environment. Are you looking to build a strong career? Then we have an opportunity for you!

Compensation: $180,000 to $200,000 per year (base salary)

Rex Moore pays hourly/salary rates commensurate with each employee’s knowledge, experience and skill level.

Work environment:

This is a fully remote position based in the United States. Applicants must be legally authorized to work in the U.S. Travel up to once per quarter (under 5%) to Rex Moore offices and job sites.

LOCATION:

Rex Moore and affiliated offices are located throughout California and Nevada.

Reporting Structure:

Reports to – Director, Office of Operational Intelligence & Automation

Department – General and Admin

Qualifications

Knowledge, Skills and Abilities:

• At least 5 years building automations, integrations or software, with code you have shipped to production that people use
• Python and SQL for data transformation, API calls and file processing
• Connecting business systems through APIs, webhooks and structured data (JSON)
• Hands-on AI experience beyond a chat window: building agents, MCP connections or AI workflows, and setting up enterprise AI tools for other people
• A track record of owning automations from discovery through improvement, used by hundreds of people or across multiple departments
• The ability to explain your work clearly to a foreman, an estimator and an executive

Preferred

• Background in software, solutions or forward deployed engineering
• Fine-tuning or self-hosting open models, or training small task-specific models
• Experience with AI governance, responsible use and data-handling practices
• Experience across more than one vendor ecosystem, including open source, and ERP/CRM integration
• Construction, trades or project-based industry experience

If you can, include a link to something you have built (a repository, live tool or short screen recording) with your resume or cover letter.

Physical Requirements:

The essential functions below can be performed with or without reasonable accommodation:

• Work at a computer for extended periods
• Communicate clearly by video, phone, chat and in person
• Travel up to once per quarter to Rex Moore offices and active job sites
• On job sites, follow safety rules, including required protective equipment, and walk or stand for periods of time