Hexaware: Long-Term Full Stack Consulting Partnership

Technical Details

Role

Staff Engineer / US AI Tech Lead

iOS

Swift, SwiftUI, UIKit

Android

Kotlin, Jetpack Compose

Backend

Node.js, Python, Java/Spring

Cloud

AWS, Azure, Kubernetes

AI

LLM Integration, RAG, Prompt Engineering

Hexaware: Long-Term Full Stack Consulting Partnership

Diverse full stack projects for a global IT services leader.

Hexaware Technologies has established itself as one of the fastest-growing global IT services and consulting companies, with $1.4 billion in annual revenue and 31,000 employees across 60 offices worldwide. Over 35 years, they have built a reputation for delivering enterprise-scale digital transformation across industries ranging from banking and healthcare to retail and manufacturing.

About Hexaware

Founded in India and now operating globally, Hexaware has carved out a distinctive position in the IT services landscape through their AI-First approach and proprietary platforms like Amaze for cloud migration, Tensai for intelligent automation, and RapidX for agentic AI solutions. Their client roster includes major enterprises seeking comprehensive digital transformation partnerships.

A Long-Term Consulting Partnership

My engagement with Hexaware began as a specialist consultant brought in to tackle complex full stack challenges across their diverse project portfolio. What started as a focused engagement evolved into a long-term partnership spanning multiple years and numerous projects.

The nature of consulting for a global IT services company meant exposure to an unusually wide variety of technical challenges:

  • Enterprise Mobile Applications: Building iOS and Android applications for Hexaware's banking and financial services clients
  • Cloud-Native Development: Architecting microservices and serverless solutions on AWS and Azure
  • Legacy Modernization: Migrating aging systems to modern tech stacks while maintaining business continuity
  • API Development: Designing and implementing RESTful and GraphQL APIs for enterprise integrations
  • DevOps and CI/CD: Establishing automated pipelines and infrastructure-as-code practices

Technical Breadth Across Projects

The consulting role required fluency across the full technology stack:

Mobile Development:

  • Native iOS development with Swift and SwiftUI for enterprise banking applications
  • Android development with Kotlin and Jetpack Compose
  • Cross-platform evaluation and implementation guidance
Backend Services:
  • Node.js and Python microservices
  • Java/Spring Boot enterprise applications
  • Database design across PostgreSQL, MongoDB, and cloud-native options
Cloud and Infrastructure:
  • AWS services including Lambda, ECS, API Gateway, and DynamoDB
  • Azure Functions and App Services
  • Kubernetes orchestration and container strategies
  • Terraform and CloudFormation for IaC

Project Highlights

Banking Mobile Platform: Led mobile architecture for a major financial institution's customer-facing app, implementing secure authentication flows, real-time transaction updates, and offline-capable account management.

Healthcare Data Pipeline: Designed and built a HIPAA-compliant data processing system handling patient records across multiple provider systems, with strict audit logging and encryption requirements.

Retail Inventory System: Created a real-time inventory management solution integrating with POS systems, warehouse management, and e-commerce platforms through event-driven architecture.

Insurance Claims Modernization: Migrated a legacy claims processing system from mainframe to cloud-native microservices, reducing processing time by 70% while improving auditability.

Consulting at Scale

Working within Hexaware's delivery model provided unique insights into enterprise software development at scale:

Knowledge Transfer: A significant part of the role involved mentoring Hexaware's development teams, conducting architecture reviews, and establishing best practices that could be applied across multiple client engagements.

Standards and Governance: Helped establish coding standards, security guidelines, and architectural patterns that became part of Hexaware's delivery methodology.

Client Engagement: Direct interaction with end clients to understand requirements, propose solutions, and ensure deliverables aligned with business objectives.

Agile at Enterprise Scale: Experience with SAFe and other scaled agile frameworks for coordinating work across distributed teams and multiple workstreams.

AI Strategy & Prototype Development

As the AI Tech Lead for Hexaware's US-based team, I led the development of AI integration strategies and built working prototypes demonstrating how large language models could transform how enterprises interact with their legacy codebases.

The Legacy Challenge: Many of Hexaware's enterprise clients face the same dilemma: critical business logic spread across large, complex systems—sprawling applications in Java, .NET, and various web frameworks that had grown organically over years of feature additions and team changes. These systems are expensive to maintain, difficult to extend, and poorly documented. Traditional rewrite approaches are risky, time-consuming, and often fail. AI-assisted modernization offers a compelling alternative.

Prototype Development: I built functional prototypes demonstrating AI capabilities for enterprise codebase integration:

  • Codebase Q&A Systems: RAG-based prototypes allowing developers to query large codebases in natural language, understanding business logic and system behavior without reading thousands of lines of code
  • Automated Documentation Generation: Prototypes that analyze code and generate comprehensive documentation, API specifications, and architectural diagrams
  • Intelligent Code Review: AI-powered review tools that identify security vulnerabilities, code smells, and suggest improvements aligned with enterprise standards
  • Test Generation Pipelines: Prototypes creating test suites for under-tested legacy code, enabling safer refactoring and modernization
  • Microservice Boundary Detection: Tools that analyze monolithic applications and suggest optimal decomposition strategies
Strategy Development: Working with Hexaware's leadership, I developed a comprehensive AI-enabled modernization framework that could be applied across client engagements:

  • Code Understanding: Leveraging LLMs to analyze and document large codebases, extracting business rules and generating human-readable explanations of complex logic
  • Refactoring Assistance: Strategies for using AI to help migrate legacy code to modern patterns and frameworks
  • Impact Analysis: Intelligent code search and dependency mapping across large repositories
Knowledge Transfer: A key deliverable was enabling Hexaware's teams to continue this work independently—training architects and developers on prompt engineering, AI tool evaluation, and responsible AI practices for enterprise contexts.

This AI strategy work positioned Hexaware to offer differentiated modernization services to clients who had previously viewed their complex legacy systems as unmovable obstacles.

Results and Impact

The long-term consulting partnership delivered measurable value across multiple dimensions:

  • Successful Project Delivery: Contributed to numerous on-time, on-budget project completions across diverse industry verticals
  • Technical Excellence: Established patterns and practices that improved code quality and reduced defect rates across teams
  • Team Capability Building: Upskilled multiple development teams in modern technologies and architectural approaches
  • Client Satisfaction: Maintained strong relationships with end clients, often requested by name for follow-on engagements
The breadth of experience gained through this partnership—spanning industries, technologies, and project types—has proven invaluable in approaching new challenges with a comprehensive perspective on enterprise software delivery.