Sai Kishore Dasamantharao

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

Summary:
Modernizing Thomson Reuters platform infrastructure — serverless, containers, CI/CD, and security — delivering reusable AWS CDK frameworks that accelerate team delivery, while managing releases and supporting SRE across SAT, UAT, and PROD environments.

Platform & Serverless

Built reusable CDK constructs for API Gateway, Lambda, and ECS microservices — cutting new-service onboarding from days to under a day
Provisioned full ECS stacks (ECS, ALB, RDS) in CDK TypeScript with zero manual touchpoints; containerized Java microservices on Fargate with Cloud Map and Datadog observability
Designed API Gateway with VPC Link/NLB/ECS integration, Lambda custom authorizers, and automated API key lifecycle
Built SQS-to-Lambda event-driven integrations

CI/CD & DevSecOps

Reduced legacy .NET container build time from 37 to 15 minutes
Deployed self-hosted GitHub runners on CodeBuild with OIDC federation — eliminating long-lived credentials
Automated regression testing, code coverage, and Flyway DB schema migrations in CI/CD
Customized WAF policies; operated within AWS Managed Services (AMS) under enterprise change-management and compliance guardrails

Data, Resilience & Cost

Deployed DynamoDB with cross-region replication for DR; S3 lifecycle rules for cost-optimized retention
Drove recurring cost savings across S3 and Secrets Manager, coordinating across cross-functional teams
Use GitHub Copilot daily to accelerate IaC development, pipeline authoring, and documentation

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 via GlobalLogic's Architect Academy and Apprenticeship.

Data Engineering Lead (Mar 2023 – Jan 2024) — Leap Event Technology

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

Lead Software Engineer (Feb 2022 – Feb 2023) — Pluralsight

Designed a 100% serverless microservice for a learning platform (1M+ users) — consuming millions of Kafka messages and publishing churn/segmentation data downstream with zero batch latency
Built in CDK TypeScript following DDD and TDD; GitLab CI/CD with AWS OIDC for credential-free deployments
Tech: CDK TypeScript, Lambda, DynamoDB, S3, SNS, Kafka, Node.js

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

Day-1 deployment of a full serverless microservice framework via JSON config — Lambda, API Gateway, Custom Authorizer, DynamoDB, RDS, SQS, SNS, Cognito, CloudFront, KMS, EventBridge, IAM

Awards & Recognition

Customer Award (Sep 2023) — Data Pipelines & Infrastructure; Quarterly Eminence Award, Q4 2022
Architect Academy (POV: zero-downtime Hadoop-to-GCP migration) and Architect Apprenticeship, GlobalLogic

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 transitions 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