I'm Siddharth Pachori-image

I'm Siddharth Pachori

Engineering Leader with 11+ years building large-scale e-commerce checkout, payments, and regulated financial infrastructure across 26 countries. Lead a team of 12 at Cimpress, architecting distributed commerce and payments platforms end-to-end from system design through production ownership.

about-me-image

About me

Engineering leader with 11+ years building large-scale e-commerce checkout, payments, and regulated financial infrastructure across 26 countries, from system design through production ownership. I enjoy architecting distributed systems, leading cross-functional teams, and mentoring engineers toward senior-level ownership.

Location

Mumbai, India

Experience

11+ Years

Nationality

Indian

Interests

Guitar, Gaming

Study

Welingkar Institute of Management, Mumbai

Current work

Lead Software Engineer, Cimpress India

Selected projects & impact

Unified Checkout Platform

Architected an event-driven checkout platform supporting any reference (cart, order, or point node), with plug-and-play payment, billing & shipping components, plus split and on-demand capture.

Node.jsAWSEvent-DrivenArchitecture

PCI-DSS Compliance & Payments Expansion

Led a global PCI-DSS transformation and expanded payment capabilities (Adyen, Braintree, PayPal, wallets, direct debit & Pay by Invoice) into 8-10 new markets.

8-10 new markets

PCI-DSSPaymentsSecurityCompliance

Credit Risk & Fraud Automation

Built a fraud validation framework combining credit risk platforms with self-built logic across pre- and post-order journeys, plus self-serve microsites and agentic telephony channels.

~40% faster review, ~15% less fraud loss

Fraud DetectionAutomationRisk

CI/CD & Observability Overhaul

Redesigned org-wide CI/CD flow with parallelized build pipelines, automated quality gates (Sonar, Snyk, Orca), and a full observability stack (Sentry, New Relic, CloudWatch).

60% faster builds, 35% fewer incidents

CI/CDDevOpsObservability

Micro-Frontend Platform Migration

Modernized legacy checkout and payment applications into Node.js microservices on AWS and transformed the UI into an independently-owned micro-frontend platform.

32% scalability gain, 30% lower latency

MicroservicesMicro-FrontendsAWS

GraphQL / Apollo API Modernization

Upgraded Fictiv's vendor/quote platform REST APIs to the Apollo GraphQL framework, and built reusable frontend components across the platform.

30% faster response, 15% better on-time delivery

GraphQLApolloREST

Work

National Pen (pens.com)

Lead Software Engineer

Cimpress India Jan 2023 - Present

  • Technical Leadership: Lead a team of 12, owning architecture direction and critical technical decisions in partnership with engineering & product leadership. Mentor engineers to senior-level ownership and drive AI-assisted development adoption across 2-3 other teams.
  • PCI-DSS Compliance & Expansion: Led global PCI-DSS transformation, enabling secure infrastructure and expanding e-commerce payment capabilities (Adyen, Braintree, PayPal, wallets, direct debit & Pay by Invoice) into 8-10 new markets.
  • Credit Risk & Fraud Automation: Built a fraud validation framework combining credit risk platforms with self-built logic across pre- and post-order journeys, cutting review time ~40% and fraud losses ~15%. Added self-serve microsites, portals, and agentic telephony channels, with prepayment automation cutting reconciliation time ~45%.
  • Commerce Platform Architecture: Architected a unified, event-driven checkout platform supporting any reference (cart, order, or point node). Built plug-and-play components packaging payment methods, billing & shipping, including authorization and split & on-demand capture.
  • CI/CD & Observability: Redesigned and led org-wide CI/CD flow, parallelizing build pipelines, automating quality gates (Sonar, Snyk, Orca), and building reusable deployment templates, cutting build/release time by 60%. Drove observability strategy (Sentry, New Relic, CloudWatch), cutting production incidents by 35%.
Technical LeadershipPCI-DSSFraud PreventionCheckout ArchitectureCI/CD
National Pen (pens.com)

Senior Software Engineer

Cimpress India Mar 2021 - Dec 2022

  • Distributed Backend Systems: Modernized legacy checkout and payment applications into Node.js microservices on AWS, using event-driven processing to decouple backend workflows and improve scalability by 32%.
  • Frontend Platform Engineering: Transformed UI into a micro-frontend platform with shared content delivery, cutting page latency by 30% and enabling independently owned frontend domains.
Node.jsAWSMicroservicesMicro-Frontends
Fictiv

Senior Software Engineer

Cybage Software, Pune Feb 2019 - Mar 2021

  • Frontend Architecture: Owned UI and built reusable components for Fictiv's vendor/quote platforms, improving on-time delivery by 15%.
  • API-Driven/GraphQL Modernization: Upgraded REST API to Apollo framework, improving application on-demand response by 30%.
GraphQLApolloREST APIsFrontend Architecture
Credit Suisse

Software Engineer

Wipro Technologies, Pune Sep 2015 - Feb 2019

  • Enterprise Systems (CS-UBS): Built C# web services and SQL Server integrations automating enterprise identity/access workflows.
  • Internal Tooling: Created Ideate, an internal platform for resource allocation and improvement tracking adopted across engineering.
C# .NETSQL ServerEnterprise Systems

Skills

Languages
TypeScript / JavaScript
Node.js
Core Java
Python
C# .NET
Frontend & APIs
React.js / Next.js
Redux
GraphQL (Apollo)
REST APIs / Express.js
Tailwind CSS / SCSS
Cloud & Infrastructure
AWS (Lambda, API Gateway, SQS, EventBridge, S3, CloudFront)
Docker / Kubernetes
CI/CD (Jenkins, CodeBuild)
Serverless Architecture
OWASP / PCI-DSS Security
Databases
DynamoDB
PostgreSQL / RDS
Redis
MongoDB
Sybase SQL Server
Engineering Practices
System Design & Distributed Systems
Domain-Driven Design & Event-Driven Architecture
AI-Assisted Development & Code Review
Technical Leadership & Mentorship
Agile / Scrum / Kanban

Education

Welingkar Institute of Management

PGDM – Project Management

Welingkar Institute of Management, Mumbai 2021

Mumbai University

B.Sc. Information Technology

Narsee Monjee College, Mumbai University 2015

Certifications

AWS Certified Developer – Associate

Amazon Web Services 2022

Achievements

Received consecutive annual awards at Cimpress for engineering leadership, team collaboration, scalability, and delivery.

Secured 2nd prize in the Wipro Hackathon, collaborating with team members to develop a scalable waste management system for innovative recycling solutions with distributed networks.