Sai Kishore Dasamantharao

Role: Senior DevOps Engineer – Platform Operations & Data Engineering
Client: Thomson Reuters · Feb 2024 – Present

Summary:

Driving infrastructure modernization at Thomson Reuters across serverless architecture, container platforms, CI/CD pipelines, and security — delivering reusable AWS CDK frameworks that accelerate team delivery, while managing releases and supporting SRE teams across SAT, UAT, and PROD environments.

Engineering Practices

• Leverage AI coding assistants (GitHub Copilot) daily to accelerate infrastructure code development, pipeline authoring, debugging and documentation
• Build reusable CDK constructs and GitHub Actions workflows — enabling teams to onboard new services without rebuilding foundational infrastructure from scratch
• Automate repetitive operational tasks including token rotation, regression testing, code coverage reporting and DB schema migrations — eliminating manual intervention from routine workflows

API & Serverless Architecture

• Designed and deployed API Gateway with VPC Link, NLB, and ECS service integration — including request transformations and proxy route configurations
• Implemented API Gateway with Lambda-backed custom authorizers and automated API key lifecycle management
• Built SQS-to-Lambda event-driven integrations
• Automated token rotation for JFrog using Lambda and Secrets Manager

Container & Service Infrastructure

• Built reusable CDK constructs for ECS microservice deployment with Datadog observability and CI/CD pipeline — reducing new service onboarding from days to under a day
• Containerized Java microservices for ECS Fargate deployment with Cloud Map service discovery and Datadog sidecar for unified logs, metrics, and distributed traces
• Configured and deployed Nginx within ECS, managing reverse proxy and routing rules
• Provisioned full ECS stack (ECS, ALB, RDS, ECS Services) using CDK TypeScript with zero manual touchpoints

CI/CD & Developer Platform

• Developed reusable CDK constructs for API Gateway and Lambda that enable teams to configure and deploy production-ready serverless infrastructure in minutes
• Reduced container build time for a legacy .NET application from 37 minutes to 15 minutes by diagnosing and resolving Docker build issues
• Deployed self-hosted GitHub runners on CodeBuild and configured OIDC roles for secure GitHub-AWS integration — eliminating long-lived credentials
• Automated regression testing and code coverage reporting within CI/CD pipelines
• Built DB schema migration pipelines using Flyway in CodeBuild

Security & Compliance

• Customized WAF policies to handle environment-specific exceptions
• Configured OIDC-based identity federation between GitHub and AWS
• Managed services within AWS Managed Services (AMS) account environment — operating under enterprise-grade change management and compliance guardrails

Data & Resilience

• Deployed DynamoDB with cross-region replication for disaster recovery
• Configured S3 lifecycle rules for cost-optimized data retention
• Managed Route 53 records via CDK for ALB routing across environments

Cost Optimization

• Identified and drove cost optimization measures resulting in significant recurring savings across S3 and Secrets Manager, coordinating implementation across cross-functional teams

Documentation

• Maintained meticulous technical documentation to support knowledge sharing and onboarding across platform teams

Summary:

Delivered serverless microservice and data engineering solutions across media, learning, and ticketing domains — building reusable CDK TypeScript accelerators and Terraform IaC while growing into architecture through GlobalLogic's Architect Academy and Apprenticeship programmes

Data Engineering Lead (Mar 2023 – Jan 2024)

Client: Leap Event Technology

• Designed and built Terraform IaC for AWS Glue-based ETL pipelines — enabling minimal-touch data infrastructure across Glue, Lambda, RDS, SNS, S3, Athena and EventBridge
• Improved data ingestion strategy to reduce load on source database and batch latency
• Performed data modeling and translated business requirements into user stories, milestones, and delivery plans
• Developed shared utility module reused across Glue jobs, reducing duplication and maintenance overhead
• Built DB schema migration pipeline for Snowflake via GitHub Actions using client-provisioned AWS self-hosted runner for VPC connectivity
• Tech: Glue, PySpark, Terraform, Lambda, Snowflake, QuickSight, Athena, RDS, S3, EKS, GitHub CI/CD

Lead Software Engineer (Feb 2022 – Feb 2023)

Client: Pluralsight

• Designed and built a 100% serverless microservice solution for a learning platform (1M+ users) — consuming millions of Kafka messages, transforming and publishing user churn and segmentation data to downstream systems with zero batch latency
• Developed in CDK TypeScript following Domain Driven Design (DDD) and Test Driven Development (TDD) principles
• Created GitLab CI/CD pipelines with AWS OIDC role integration for secure, credential-free deployments
• Tech: CDK TypeScript, Lambda, DynamoDB, S3, SNS, Kafka, CloudWatch, Node.js, GitLab CI/CD

Self-Initiative: CDK TypeScript Accelerator (published on GlobalLogic Practices Portal)

• Built an internal accelerator enabling Day 1 deployment of a full serverless microservice framework via JSON configuration — covering Lambda, API Gateway, Custom Authorizer, DynamoDB, RDS, SQS, SNS, Cognito, CloudFront, KMS, EventBridge and IAM

Awards & Recognition

• Received Customer Award (Sep 2023) for exceptional contribution to Data Pipelines and Data Infrastructure
• Received Quarterly Eminence Award for Q4 2022
• Completed GlobalLogic Architect Academy — delivered architecture POV on zero-downtime Hadoop-to-GCP migration strategy as part of the programme
• Completed GlobalLogic Architect Apprenticeship Programme

Summary:

As Founder, designed and developed a fully managed, multi-tenant, serverless workflow automation platform — enabling enterprises to digitize complex business processes across employees, systems, and external parties (vendors, customers) without writing code

Job Description:

• Architected a zero-code workflow engine with dynamic routing, conditional logic, and configurable business rules — supporting complex multi-department approval chains
• Built a universal API connector (REST & SOAP) for seamless integration with customer ERP systems, eliminating custom integration work per client
• Implemented enterprise-grade security: SSO via SAML 2.0/OpenID Connect, IP-based access restriction, AWS WAF integration, and granular role-based access control with delegation
• Designed real-time analytics and customizable dashboards with drill-down insights on workflow records, with periodic master data sync from client ERPs into AWS RDS to support dynamic data sets
• Delivered field-level audit trails, duplicate approval checks, and event-driven exception handling to meet enterprise controllership requirements
• Architected the platform on AWS serverless (Lambda, DynamoDB, API Gateway, S3) for pay-as-you-go scalability with minimal operational overhead
• Defined go-to-market strategy with tiered SaaS pricing (Standard to Enterprise) and mapped use cases across insurance, banking, HR, and manufacturing verticals — positioning the product for multiple industries
• Tech: Lambda, Node.js, API Gateway (REST & WebSocket), DynamoDB, RDS, S3, SNS, SAML/OAuth2, AWS WAF

Summary:

As Founder, personally conceived and developed the foundational version of a multi-tenant, serverless workflow and forms automation platform — later evolved and incorporated as Ditrobiz Solutions Ltd (UK)

Job Description:

• Built a drag-and-drop form builder enabling internal teams to rapidly configure custom forms and UI events for client workflows, without requiring code changes
• Designed a visual workflow engine using bpmn.js, allowing complex multi-step approval processes to be created by drawing process flows
• Implemented Cognito-based authentication with SAML/OAuth2 integration, with authorization managed via Active Directory groups
• Built a sanctions screening capability using the Jaro-Winkler fuzzy matching algorithm — an early foundation for compliance-focused fuzzy search
• Architected the platform fully serverless on AWS (Lambda, DynamoDB, API Gateway, S3, CloudWatch Events)
• Tech: Lambda, Node.js, API Gateway, DynamoDB, S3, SNS, CloudWatch Events, bpmn.js, Cognito (SAML/OAuth2)

Title: SBU Manager

Role: Global Process Lead for Accounts Payable of 180+ members

Highlights

• Absorbed tarnsitions worth EUR 226K by enhancing productivity
• Achieved P & L targets
• Initiated Automation of Invoice Processing using SAP Macros

Roles Handled: Transition Manager and Global Process Owner for Accounts Payable

Highlights:

• Basware Implementation(OCR) for Accounts Payable process
• Partnered with business leaders to deliver services that support client transition / transformation objectives
• Transition Manager of Accounts Payable processes from multiple countries - UK, Netherlands, Germany, France & Italy
• Analysis of AP automation system to identify system improvements and worked with IT team in enhancing system
• Designed and developed Global Process Models (GPM) of
• Accounts Payable and T & E processes of Media & Entertainment
• Industry
• Worked as Global Process Owner (GPO) in transforming and transitioning AP process of Media giant
• More than 25 improvement projects done in Invoice Processing and Payment run processes

Highlights:

• Reduced average TAT of invoice processing by 2 days
• Benchmarking AP metrics
• Successfully transitioned New Opcos from US to India
• Ensured month end closures of Accounts Payable
• Staff management of Accounts Payable and T&E teams of 18

Title: Manager

Role: AP Process Owner

Highlights:

• Designed and Implemented Dashboard Automation saving 364 hours per annum
• Designed and Implemented Vendor Maintenance Automation
• Designed, developed and implemented multiple workflows to make processes digital
• Overview of migration of new Opcos into SAP
• Address second level escalations on process issues
• Vendor management
• Monitor Accounts Payable SLAs

• Joined as an Associate and grown up as Assistant Manager performing multiple roles with following key achievements
• Reduced aged debits from $2.5 MM to $25K
• Resolved Intercompany variance of $4.8 MM
• Designed AP Liability Analysis process