Sierra Platform Developer

Job Title: Sierra Platform Developer

Job Location: New York City, NY, AZ

IT01

Description:

AgreeYa is a global Systems Integrator and is seeking an experienced Sierra Platform Developer who owns end-to-end agent/solution architecture on Sierra: agent/skill decomposition (Root and sub-agents), guardrails, tool contracts, state and context model, and orchestration.

Job Responsibilities

• Minimum 9 years total in Conversational AI / agentic-bot design and delivery, including solution/technical leadership.
• 1 2 years hands-on Sierra with a senior/lead contribution on at least one Sierra project (Sierra is new; depth is valued over tenure).
• Proven full-stack engineering in TypeScript/JavaScript and enterprise SDLC.

Core Responsibilities

• Own end-to-end agent/solution architecture on Sierra: agent/skill decomposition (Root and sub-agents), guardrails, tool contracts, state and context model, and orchestration.
• Define integration contracts (auth, APIs, telephony/transfer, attached data) and failure-handling strategy.
• Own the LLD - detailed journey/intent flows, tool contracts, state/context model, prompt/instruction design, error/edge-case handling, routing/transfer logic.
• Set standards for simulation coverage, critical-simulation gates, and test strategy across the team.
• Own release management: workspace reviews, merge governance, snapshot/release scheduling, approvals, and release APIs for automation.
• Design and govern Git migration and CI/CD pipelines (e.g., GitHub Actions) with simulation and release enforcement.
• Establish observability (monitoring, alerts, trace export to Datadog/Honeycomb) and drive analytics-based optimisation and experiments.
• Ensure security and compliance: API-token and permission management, secure external integrations, and adherence to enterprise controls.
• Mentor B-band engineers, run code/design reviews, and interface with client stakeholders.

Mandatory Skills (Sierra Platform)

• Advanced Sierra Mastery: Mastery of all core B-band skills at an advanced/lead level.
• Release Management: Workspace development, merge requests, snapshots, release workflows, and release APIs for CI/CD.
• Git Migration & CI/CD: Strong Git and migrations; building pipelines; wiring simulation runs and release enforcement end-to-end.
• Quality & Observability: Monitoring/alerts, trace export (Datadog/Honeycomb), agent documentation, and comprehensive simulation coverage.
• Security & Compliance: Sierra security/compliance model, token/permission management, and secure integration with external systems.

Good to Have

• Advanced Ghostwriter: Advanced usage and review governance for AI-generated changes.
• Analytics & Optimisation: Interpreting CSAT, resolution/containment, running experiments and reporting.
• Regulated Environments: BFSI or healthcare regulated-environment delivery experience.

Qualifications & Soft Skills

• Bachelor s degree in computer science/engineering or equivalent practical experience.
• Proven technical leadership, problem-solving, and adaptability to evolving scopes.
• Exceptional written and verbal communication for architecture docs, design reviews, and client stakeholder management.
• Ownership mindset across build test release monitor.

Education Required:

• Bachelor s degree in computer science, Information Technology, Engineering, or equivalent practical experience.

AgreeYa is a global systems integrator delivering competitive advantage for its customers through software, solutions, and services. Established in 1999, AgreeYa is headquartered in Folsom, California, with a global footprint and a team of more than 2,200 staff across offices. AgreeYa works with 500+ organizations ranging from Fortune 100 firms to small and large businesses across industries such as Telecom, Banking, Financial Services & Insurance, Healthcare, Utility & Energy, Technology, Public sector, Pharma & Biotech, and others. Please visit us at for more information.

AgreeYa is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, religion, gender identity, sexual orientation, national origin, disability, veteran status or other protected characteristics. Visit our website to learn about our Career & Culture.