Lead Software Engineer · Payments & Checkout
I'm Siddharth Pachori
Engineering leader with 11+ years across e-commerce checkout, payments, and fraud & credit risk in 26 countries. Product-minded and execution-focused, I led a team of 12 owning roadmap, architecture and delivery, balancing revenue, risk and compliance with what the business needs.
- Years experience
- 11+
- Countries
- 26
- Engineers led
- 12
- Markets expanded
- 8–10
Current Work / Resume
Experience
Lead Software EngineerCurrentCimpress IndiaApr 2023 - Present
- Technical Leadership: Owned architecture and critical technical decisions, translating business priorities into technical roadmaps, design standards and operational practices; hired and grew engineers into senior owners.
- Commerce Platform Architecture: Architected a unified, event-driven checkout platform supporting cart, order, and direct purchase flows. Built plug-and-play payment, billing, and shipping components with authorization, split/on-demand capture, and post-order fulfillment integration, accelerating new payment methods and market expansion.
- PCI-DSS Compliance & Expansion: Led a global card-security transformation, replacing agent-handled card capture with secure telephony payments, building configurable payment links for any payment combination, and re-architecting web card capture, removing card data from agents and systems, passing compliance audits and enabling secure expansion across markets.
- Credit Risk, Fraud Prevention & Settlement: Built pre- and post-order controls using AVS checks, velocity rules, risk scoring, capture/hold logic, payment validation and settlement workflows. Added self-service invoice workflows, cutting review time ~40%, loss exposure ~15%, and reconciliation time ~45%. Enhanced detection using device intelligence and behavioral signals.
- Payment Gateways & Methods: Expanded payments across 8–10 markets via Adyen, Braintree, PayPal and Klarna, adding wallets, direct debit, bank transfer and Pay by Invoice so customers could pay with locally preferred methods.
- AI Adoption & Context Engineering: Drove adoption of coding agents, LLMs and agentic workflows across 3 teams, structuring product, domain, architecture, codebase and production context to speed up development, review, testing & troubleshooting.
Senior Software EngineerCimpress IndiaMar 2021 - Apr 2023
- Distributed Backend Systems: Modernized legacy checkout and payment applications into event-driven Node.js microservices on AWS, decoupling backend workflows, increasing throughput ~32% and reducing infrastructure cost.
- Frontend Platform Engineering: Migrated REST APIs to Apollo GraphQL, improving API response times by ~30%.
Senior Software EngineerCybage SoftwareFeb 2019 - Mar 2021
- Zero-to-One Product Build: Led UI architecture for Fictiv's vendor and quoting platforms, increasing deployment frequency by 15%.
- Team Execution & Standards: Scoped and planned team work with the EM, modernized legacy code and mentored frontend engineers.
Software EngineerWipro TechnologiesSep 2015 - Feb 2019
- Enterprise Systems: 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.