Based in London, UK · Checkout.com

Nithin Nampalli

Building the infrastructure
payments run on.

Senior Software Engineer specialising in Fintech platform engineering, cloud-native distributed systems, and AI platform engineering. Currently at Checkout.com building the merchant onboarding platform — designing policy engines, automating compliance workflows, and integrating LLMs (Claude AI, Gemini, Cursor) to accelerate risk assessment across 8+ global regions.

Strong hands-on practice with AI tooling and AI integrations — connecting LLM APIs directly into production applications, setting up AI-driven automation pipelines, and embedding intelligence into onboarding and risk workflows. Over 12 years of engineering experience across Fintech, enterprise and SaaS — working with clients including Checkout.com, ASOS, O2, Cigna, Volvo Cars, Arrow Electronics and DocuSign.

Location London, UK
Current Role Senior Software Engineer
Company Checkout.com
Education B.Tech ECE · Executive MBA
Open to Senior SWE · Staff Eng

Trusted by

Checkout.com · ASOS · O2 Telefonica · Cigna · Volvo Cars · DocuSign · Arrow Electronics · Microsoft

Career Timeline

Senior Analyst

Cognizant UK&I

Nov 2021 – Jun 2022 London, UK
C# Selenium Azure DevOps
  • Designed and led end-to-end test automation strategy for ASOS Payment systems using C# and Selenium
  • Built and maintained CI/CD pipelines on Azure DevOps, reducing regression cycle time across critical payment flows

Software Development Engineer (SDE)

DocuSign (Seal Software)

Aug – Nov 2021 Gothenburg, Sweden
Java Micronaut Docker GCP Jenkins
  • Designed and implemented a microservices test framework from scratch for a SaaS analytics platform (Micronaut, Java)
  • Configured Docker/Kubernetes environments on GCP for containerised test execution and Jenkins pipeline integration

Senior Analyst

Infosys Limited

Apr 2018 – Aug 2021 Gothenburg, Sweden · Hyderabad, India
Java Selenium SOAP UI Azure DevOps BrowserStack
  • Developed reusable automation tooling and API test frameworks (Selenium, Java, SOAP UI) for Volvo Cars and Arrow Electronics
  • Created and maintained CI/CD pipelines on Azure DevOps; deployed cross-browser execution grids on BrowserStack and Docker

Application Development Senior Analyst

Accenture

Jan 2014 – Apr 2018 Bangalore & Hyderabad, India
Java C# Selenium BDD/Cucumber Jenkins
  • Led a team of 6 engineers building automation tooling for enterprise applications (Siebel, Salesforce, SAP) using Selenium and BDD/Cucumber
  • Contributed to NexGen testing framework initiative; automated end-to-end user stories within Agile sprints using Jenkins CI

Tech Stack

☁️ Cloud & Infrastructure

AWS Lambda Amazon ECS API Gateway DynamoDB Docker Kubernetes GCP

💻 Languages

C# Java JavaScript TypeScript Python

⚛️ Frontend

React.js Node.js HTML/CSS REST APIs

🤖 AI Platform Engineering

Claude AI Gemini Cursor LLM Integration AI Platform Engineering AI Tooling AI Automation Pipelines

📊 Observability & DevOps

DataDog Jenkins Azure DevOps Git CI/CD

🧪 Testing & QA

Selenium Cypress WebDriverIO BDD/Cucumber Postman

What I've Built

Checkout.com · 2023

AI Merchant URL Screener

LLM-powered system that classifies Merchant Category Codes (MCC) directly from URLs, eliminating 1–2 hours of manual review per merchant onboarded.

⚡ 1–2 hrs saved / merchant 🤖 LLM-based classification
Claude AI Gemini AWS C#
Checkout.com · 2024

Merchant Requirements Automation

Automated flow that raises compliance requirements directly to merchants, replacing manual agent review and cutting merchant Time-to-Live from days to hours.

🚀 Days → Hours TTL 📉 Reduced agent workload
ECS API Gateway React.js DataDog
📅
0+ yrs
Engineering experience across Fintech, Payments & Enterprise
0 hrs
Saved per merchant onboarded via URL automation
🌍
0 regions
Covered by the Policy Engine (UK, US, CA, EU+)
🚀
Merchant Time-to-Live, reduced by automated requirements flow
⏱️
Automation execution time reduced through parallelisation & grid strategies

Let's Talk

Open to Senior Software Engineer and Staff Engineer opportunities at Fintechs, payments companies, and cloud-native startups.