Principal Software Engineer
ServiceNow5 days ago
Base Salary
$199k - $348k/yr
Responsibilities
- Set technical direction for model-driven HR, agentic, and conversational capabilities across multiple teams and releases.
- Design agent decomposition, orchestration, context boundaries, tool exposure, autonomy delegation, and model migration strategies.
- Define structural human-review boundaries for sensitive HR actions involving pay, employment status, restricted records, and employee relations.
- Own versioned instruction and tool-description surfaces with upgrade-safe extension points, deprecation paths, and compatibility guarantees.
- Build evaluation infrastructure including golden datasets, multi-turn suites, judge calibration, CI gates, drift detection, and HR-specific failure coverage.
- Design production observability and safety controls for hallucinations, tool-selection errors, unsafe actions, restricted conversation content, and prompt injection.
- Establish accountable AI-assisted engineering specifications, review expectations, and verification harnesses.
- Contribute hands-on to integrations, risky migrations, prototypes, and incidents, and partner with product, engineering, and design.
Requirements
- 10+ years of software engineering experience with technical direction adopted beyond the immediate team.
- Hands-on experience authoring agentic instructions and prompts, designing autonomous workflows, and building evaluations.
- Production experience with LLM APIs, retrieval-grounded features, agent orchestration, tool and function calling, structured output enforcement, and at least one production model or orchestration migration.
- Experience enforcing per-user access in retrieval and tool layers, separating scopes between roles, and handling restricted records under audit.
- Experience with dataset curation, judge calibration, CI gating, and drift detection used by other engineers.
- Strong command of system design, APIs, data modeling, and testing across front-end, server-side, and relational data work.
- Experience using AI coding assistants and agents accountably, plus on-call and incident-command experience on customer-facing systems.
- Experience with Java, JavaScript/TypeScript, and React, with the ability to learn new tools and frameworks quickly.
- Bachelor's degree in computer science, software engineering, or a related technical field, or equivalent practical experience.
- Preferred qualifications include HR domain expertise, integrations with core HR/payroll/benefits systems of record, reconciliation and eventual-consistency experience, and contribution in a forward deployment model.
Benefits
- Base pay is listed at $199,100-$348,400, with equity when applicable, variable/incentive compensation, and benefits.
- Benefits include health plans, flexible spending accounts, a 401(k) plan with company match, ESPP, matching donations, flexible time away, and family leave programs.
- The role has a flexible work persona within ServiceNow's distributed work model.
Tech Stack
Categories
About ServiceNow
ServiceNow builds a cloud platform for enterprise digital workflows, covering IT service management, customer service, HR service delivery, security operations, and operations management, plus tools for custom app development. It sells subscription SaaS to large organizations and public-sector agencies to automate processes and connect data across systems. Founded in 2004 and headquartered in Santa Clara, California, ServiceNow is a public company listed on the NYSE under the ticker NOW.