Prosenjit Das

• Lead Architect for .NET and Integration COE – provided future direction of technology stack, driving best practices, reusable components and development consulting to projects. Responsible for handling and overseeing multiple projects and leading team of Technical Architects and Associate Technical Architects in .NET, Integration, API First approach ,Messaging and SOA areas.
• Modernized legacy infrastructure for corporate clients, including H&M, Chanel, and Bygghemma, by migrating systems to scalable cloud solutions, resulting in a 70% improvement in system efficiency.
• Architected and deployed enterprise-grade secure IaaS and PaaS solutions embracing Azure, leading to a cost reduction by 45%.
• Successfully led a team of 50+ professionals, consistently delivering projects on time and under budget, ensuring high-quality outcomes and client satisfaction.
• Leveraged Infrastructure as Code (IaC) using Azure ARM, Terraform to automate deployment, slashing project time by 30%.
• Introduced effective backup and recovery strategies achieving 99.999% system uptime.
• Worked on estimations, recommendations, best practices and possible solutions.
• Continuously updated technical expertise through industry research, attending conferences, and obtaining certifications relevant to the role.
• Reduced deployment time with streamlined processes and automation for faster solution delivery.
• Improved security measures by performing risk assessments and applying best practices in cloud architecture design.
• Optimized cost efficiency by recommending appropriate cloud services based on client needs and budget constraints.
• Collaborated with cross-functional teams to achieve project goals within deadlines, ensuring smooth project execution.
• Simplified complex architectural challenges through effective communication with stakeholders, addressing their concerns, and clarifying technical concepts.
• Achieved increased scalability for client systems with well-designed auto-scaling policies and load balancing techniques.
• Enhanced security measures with the incorporation of strict access controls and encryption methods.
• Established comprehensive monitoring strategies to proactively identify potential performance bottlenecks or issues.
• Recommended design changes to production systems in response to changing business process, capacity, risks and performance requirements.
• Delivered hands-on training sessions on various aspects of cloud computing, empowering team members to excel in their roles effectively.
• Collaborated with cross-functional teams to integrate Gen AI solutions into existing business processes reducing costs by 18%.
• Successfully reduced customer service response time by 30% through the implementation of AI-powered chatbots.

• GDS Cloud Lead for EY-IBM alliance focusing (RedHat OpenShift, IBM Cloud, and IBM Cloud Pak) - responsible for building cloud strategy across distributed cloud (public cloud, private cloud, and hybrid cloud).
• Solution Lead on large cloud and digital transformation deals.
• Drove successful adoption of AWS for enterprise organizations like Carrier , Velon, resulting in a revenue boost by 50%.
• Implemented a microservices architecture using AWS EKS, ECR, Code Deploy, Code Pipeline, reducing system complexity and increasing deployment speed by 35%.
• Decreased downtime by 20% through the introduction of an auto-scalable, self-healing AWS infrastructure.
• Streamlined DevOps processes with AWS automation tools, enhancing productivity by 60%.
• Designed E2E data integration and data lake solution using AWS services like AWS Glue, Redshift, Snowflake and EMR.
• Involved in application design, implementation(coding) following best practices.
• Worked on improvements including the development of new tools, automation, and integration.

• Worked as a Cloud Native Architect for Channel 4, one of the largest British public service television and broadcast networks.
• Designed enterprise-level solutions, migrated legacy J2EE-EJB3 WebLogic stack applications to digital services on AWS Cloud, and implemented SOA-Microservices best practices. Additionally, introduced and built DevOps practices to enhance project efficiency and delivery.
• Worked on International Airlines Group (IAG) projects to address operational inefficiencies in passenger check-in processes, especially during peak volumes that led to delays and increased staffing requirements.
• Designed and implemented a microservices-based architecture deployed on AWS ECS containers, providing scalability and resilience at both infrastructure and application layers.
• Leveraged technologies such as AWS Redis, API Gateway, Keycloak IAM, Eureka Discovery, Zuul Services Gateway, AWS SQS, Java (Spring Boot), Node.js, Angular, and CloudWatch for monitoring.
• Improved scalability to handle 250,000 passengers daily at Heathrow Terminal 5, utilizing auto-scaling groups and container orchestration to adapt to fluctuating demands.
• Maintained kiosk operations during network outage at Heathrow, ensuring uninterrupted passenger processing and operational continuity.
• Accelerated change implementation through modularized microservices architecture, reducing downtime and enhancing flexibility.
• Attended team meetings to resolve technical and project issues and review project schedules.

• Worked as Architecture Lead in Cloud-First Design (CFD), leveraging AWS solutions for Cloud Advisory, Architecture, Cloud-Native Development, Application Modernization, Microservices, API & Integration, Modern Data Architecture, FinOps, and Performance Engineering, utilizing services such as AWS Lambda, ECS, S3, and DynamoDB to drive scalable and efficient solutions.

• Worked as Lead Architect for Integration Center of Excellence (COE), driving strategic direction of technology stack, implementing best practices, and developing reusable components while providing expert consulting to clients such as AmerisourceBergen Corp, Celgene Corp, US Bank, Teva , Pharma, and Mead Johnson.
• Oversaw multiple integration projects and led team of technical consultants and developers specializing in .NET, Java, B2B Integration, Messaging, and SOA domains.
• Oversaw daily EDI transactions and performed troubleshooting, maintaining 99% uptime for critical data exchange channels.
• Implemented automated monitoring system for EDI activities, cutting down response time for anomalies by 40%.
• Provided developer support for AS2 communication protocols, leading to smoother partnership with key vendors.
• Architected and developed IBM cloud-based data workflows that increased productivity by 20%.
• Managed transition from legacy systems to IBM Cloud app environment, resulting in enhanced scalability and future readiness.

• Provided development consulting on EDI B2B Integrations, Led a cross-functional team, including SAP and Sterling Integrator experts, to design and implement the integration architecture, ensuring successful deployment and testing of EDI maps on Unix servers.
• Oversaw project scope identification, process setup, and the creation of functional/technical specifications for EDI maps, driving efficiency in problem, change, and incident management processes.

• Led design and implementation of a comprehensive EAI/EDI solution, ensuring seamless integration with legacy applications and global trading partners.
• Utilized IBM MQ Series, Mercator, and WDI as core EAI/EDI tools to ensure seamless communication across multiple platforms.
• Migrated legacy middleware solutions to SAP’s eXchange Infrastructure (XI) as next-generation solution for improved performance and scalability.

• Worked on development and maintenance of message maps for various document types such as 850, 856, 810, and 855 in X12 standards, and DESADV, ORDERS, ORDRSP, ORDCHG in EDIFACT standards. Involved in creating Trading Partners (TP) in the test environment, deploying maps for testing, and, after successful validation, promoting them to the production environment. Additionally, provided ongoing support to clients for seamless EDI integration and operation

Worked as Java developer for developing and maintaining utility classes to facilitate file transfers between the EDI Gateway Server and Trading Partners of Mearsk logistics.

• Collaborated with .NET developers to integrate the XML configuration updates through a web interface for ease of use and real-time adjustments.
• Played a key role in the team that migrated legacy EDI systems to a modern EDI platform, resulting in a 15% increase in operational efficiency.
• Assisted in the testing, deployment, and maintenance of various EDI solutions, reducing downtime by 20%.

• Designed, developed, and successfully implemented three major EDI integration solutions using Axway EDI Integration that exceeded business and technical requirements and improved data integrity by 99%.
• Collaborated with team of 10 to ensure all EDI solutions aligned with business needs and industry standards, resulting in 30% increase in process efficiency.
• Diagnosed, debugged, and troubleshot over 200 EDI mapping issues, resolving 98% of them within 24-hour period.
• Facilitated communication with key trading partners, leading to successful onboarding of five new partners within six months.

• Worked as a Java and PHP Web Developer, responsible for designing, developing, and maintaining dynamic web applications using Java and PHP frameworks.
• Collaborated with cross-functional teams to integrate front-end and back-end systems, ensuring optimized performance and seamless user experiences.