Senior App Integration Engineer

Role Overview

The Senior App Integration Engineer is responsible for enabling seamless, secure, and intuitive user experiences by integrating AI and data capabilities into enterprise-facing channels such as Microsoft Teams, SharePoint, and web applications. This role serves as the critical bridge between AI orchestration backends and end-user interactions, ensuring adoption, usability, and reliability at scale.

With 7+ years of experience, the role combines strong engineering execution with a deep understanding of enterprise UX, identity, and integration patterns, working closely with AI Engineers and Solution Architects to deliver cohesive end-to-end solutions.

Responsibilities

Key Responsibilities

User-Facing Integrations

• Design, build, and maintain enterprise-facing integrations, including: 
  • Microsoft Teams (bots, chat experiences, adaptive cards)
  • SharePoint solutions or web applications (as required)
• Ensure integrations provide consistent, intuitive, and responsive UX for business users interacting with AI-driven insights.

AI & Backend Integration

• Integrate front-end channels with AI orchestration APIs, enabling: 
  • Context-aware user requests
  • Secure request routing and response handling
• Handle error scenarios, latency considerations, and graceful degradation of AI responses.

Identity, Security & Context Management

• Implement authentication, authorization, and user-context propagation using Microsoft Entra ID.
• Ensure secure access patterns aligned with enterprise security and compliance standards.
• Maintain user-level context (roles, permissions, session data) across integrations.

UX Consistency & Adoption

• Ensure a consistent user experience across multiple channels and surfaces.
• Focus on usability, clarity, and adoption, particularly for business users consuming AI-powered insights.
• Incorporate feedback to improve interaction patterns and reduce friction.

Collaboration & Solution Alignment

• Collaborate closely with: 
  • AI Engineers to align frontend behavior with AI capabilities and constraints
  • Solution Architects to implement agreed integration patterns and architectural standards
• Contribute to integration standards, best practices, and reusable components.

Qualifications

Required Skills & Experience

Experience

• 7+ years of experience in application development, integration engineering, or enterprise UI/backend integration roles
• Proven experience delivering enterprise-grade applications or integrations

Technical Skills

• Strong experience building integrations for: 
  • Microsoft Teams
  • Web applications or enterprise portals
• Solid understanding of API-based integration patterns (REST, async workflows, secure token exchange)

Identity & Security

• Hands-on experience with identity, access management, and secure app design
• Familiarity with Microsoft Entra ID, OAuth flows, and role-based access models

UX & Enterprise Readiness

• Strong focus on usability, consistency, and adoption in enterprise environments
• Ability to design interactions that abstract backend complexity while maintaining trust and clarity for users

About UsAt Zensar, we’re “experience-led everything”. We are committed to conceptualizing, designing, engineering, marketing, and managing digital solutions and experiences for over 130 leading enterprises. We are a company driven by a bold purpose: Together, we shape experiences for better futures. Whether for our clients, our people, or the world around us, this belief powers everything we do. At the heart of our culture is ONE with Client - a set of four core values that reflect who we are and how we work: One Zensar, Nurturing, Empowering, and Client Focus.
Part of the $4.8 billion RPG Group, we’re a community of 10,000+ innovators across 30+ global locations, including Milpitas, Seattle, Princeton, Cape Town, London, Zurich, Singapore, and Mexico City. Explore Life at Zensar and join us to Grow. Own. Achieve. Learn. to be the best version of yourself.
We believe the best work happens when individuality is celebrated, growth is encouraged, and well-being is prioritized. We are an equal employment opportunity (EEO) and affirmative action employer, committed to creating an inclusive workplace. All qualified applicants will be considered without regard to race, creed, color, ancestry, religion, sex, national origin, citizenship, age, sexual orientation, gender identity, disability, marital status, family medical leave status, or protected veteran status.