AI Agentic Software Engineer

Trimble Uk; Lake Oswego (OR); On-site; USD 180,000 - 240,000; Full time

Job summary

Trimble is recruiting a Senior AI Agentic Software Engineer to own end-to-end development within the Payroll frontend and backend stack. Lead architecture decisions, oversee AI-driven code generation, and drive secure, scalable solutions for production systems.

The role blends frontend React/TypeScript with .NET backend services, emphasizing testing, mentorship, and measurable business outcomes. Based in Lake Oswego, OR, on-site with modern tooling and cloud infrastructure.

Qualifications

• 5+ years of professional software engineering experience, shipping/maintaining production systems.
• Hands-on experience with AI coding agents and understanding their strengths/limits.
• Advanced skills in prompt design, agentic programming, and evaluation of AI-generated code.
• Experience with ethical AI principles including privacy, explainability, and bias mitigation.
• Proven system architecture design skills across frontend, backend, distributed systems, and cloud.
• Experience designing End-to-End testing strategies and suites.
• Mentoring engineers and influencing technical direction beyond own work.

Responsibilities

• Agent Orchestration: design and improve pipelines for AI agents to code, document, and refactor securely.
• Architecture: lead modular, cost-aware designs; ensure security reviews and platform standards.
• Feature Delivery and Testing: own end-to-end frontend and backend features with testing coverage.
• Technical Leadership: mentor engineers, lead reviews, share reusable patterns across teams.
• Business Outcomes: own KPIs and tie technical decisions to business results.

Skills

AI agentic development

prompt design

system architecture

full-stack development

testing strategies

mentoring engineers

ownership mindset

KPIs alignment

Tools

React

TypeScript

.NET

C#

ASP.NET Core

Webpack

Vitest/RTL

Playwright

Cloud infrastructure

Job description

Elevate Organizational Performance: Lead the Future ofTechnical Development as our Next AI AgenticSoftware Engineer!

About Us:

Trimble is a global technology company that connects the physical and digital worlds, transforming the ways work gets done. With relentless innovation in precise positioning, modeling and data analytics, Trimble enables essential industries including construction, geospatial and transportation. Whether it's helping customers build and maintain infrastructure, design and construct buildings, optimize global supply chains or map the world, Trimble is at the forefront, driving productivity and progress.

What Makes This Role Great:

As a Senior AI Agentic Software Engineer, you will operate as anexperienced full-stack engineer who independently owns the technical development, quality, and performance of complex engineering work using cutting-edge agentic AI tools. You'll work with broad autonomy on ambiguous problems, set technical direction for your area, and raise the bar for the engineers and agents around you. You will play a critical role in bringing strategic visions to life through secure and optimal architectures. You'll join the Payroll team for Trimble Financials, building a React micro-frontendbacked by an event-driven .NET payroll system.

Key Exciting Responsibilities:

• Agent Orchestration: Design, own, and continuously improve the pipelines through which AI development agents perform coding, documentation, and refactoring on secure, maintainable, approved platforms. Set the team's standards for supervising agent output, code quality, and version control, and own the prompt libraries, agent skills, and evaluation datasets that keep agent workflows reliable.
• Architecture: Lead the design of modular, cost-aware architectures for scale and performance that agents can implement. Drive technical feasibility and security reviews early in the PDLC, ensure adherence to Platform standards (e.g., TID, EMS, Modus, File Service), and lead prototype design reviews that turn product requirements into execution plans. Author and review ADRs, and weigh in on architectural decisions that span multiple services or teams.
• Feature Delivery and Testing: Deliver complex, end-to-end features across frontend (e.g., UI, accessibility) and backend services (e.g., APIs, authentication, messaging, infrastructure) with minimal guidance. Own testing strategy and frameworks for your area, including unit, integration, and E2E tests with explicit coverage targets and automated, continuous testing.
• Technical Leadership & Mentorship: Mentor and coach other engineers on agentic development practices, code review, and system design. Lead code and design reviews, share reusable patterns across teams, and help less experienced engineers grow.
• Business Outcomes: Own applicable KPIs for your area, ensuring your work and your team's technical decisions are directly tied to business outcomes.

Trimble Financials - Payroll - Senior AI Agentic Software Engineer Page

Essential Skills & Experience:

• 5+ years of professional software engineering experience, including shipping and supporting production systems.
• Deep, hands-on experience using and managing AI coding agents, with a clear understanding of their strengths, limitations, and error tendencies, and the judgment to know when not to trust them.
• Advanced proficiency in prompt design, agentic programming, oversight, and assessment of AI-generated code, including building evaluation and guardrail practices for a team.
• Practices and advocates for ethical AI principles including privacy, explainability, transparency, and bias mitigation.
• Proven system architecture design skills and strong experience in modern full-stack development, including frontend frameworks, backend services, distributed/event-driven systems, and cloud infrastructure.
• Experience designing E2E test strategies and implementing E2E test suites.
• Track record of mentoring engineers and influencing technical direction beyond your own work.
• Demonstrates an entrepreneurial mindset and ownership for relevant outcomes.

Technical Stack:

Payroll Frontend:

• Framework: React 19 and TypeScript, delivered as a single-spa 6 micro-frontend within the Trimble Financials platform shell
• Build & Tooling: Webpack 5, Babel, Node.js 24+, npm
• UI & Design System: Trimble Modus Web Components (React) and Modus Icons, CSS Modules, and a shared Trimble Financials UI library
• Data & State: TanStack React Query, React Router 7, React Context, and a generated payroll TypeScript SDK for all backend access
• Internationalization: ICU message format (intl-messageformat) with Lokalise-managed translations
• Testing: Vitest with React Testing Library and happy-dom (100% coverage gate), MSW for API mocking, Playwright for cross-browser/device E2E tests
• Quality: ESLint and Prettier

Payroll Backend:

• Runtime: .NET 10, C#, and ASP.NET Core in a modular monolith (Admin, Process, and Feed hosts layered into managers,