Solution Architecture - HCL Commerce

EPAM Systems India Pvt Ltd; India; On-site; INR 3,500,000 - 7,000,000; Full time

Job summary

EPAM Systems India Pvt Ltd is seeking a seasoned Solution Architect to drive the design and evolution of a multi-tier B2B commerce platform. You will steer architecture across legacy Commerce systems, Spring Boot services, and modern Next.js storefronts, guiding dual-run and strangler patterns while ensuring cross-layer consistency.

You will collaborate with product, delivery, QA, DevOps, and enterprise teams on data conversion, testing, and cut-over activities, set coding standards for the tech

Qualifications

• 12–20 years of professional software engineering experience.
• At least 5 years as architect or principal designer on large-scale multi-tier systems.
• At least 8 years with HCL Commerce and/or WCS 8.x.
• Strong Java/J2EE and OO design skills.

Responsibilities

• Establish target and transitional architecture for multi-tier B2B commerce across WCS store, business logic, Commerce tools, Spring Boot APIs, and Next.js storefronts.
• Direct the design of dual-run/ strangler patterns and cut-over procedures ensuring routing, session, catalog, cart, and order consistency.
• Review solution designs, sequence/integration diagrams, and REST/SOAP interfaces; flag reuse, performance, security, and operability issues.
• Collaborate with product, delivery, QA, DevOps, and enterprise teams on data conversion, integration testing, and cut-over activities.
• Set coding and design standards for Commerce customization, Spring Boot services, and Next.js storefronts.
• Oversee integration with back-end systems (ERP, payments, search, CMS) and ensure clear separation between Preview and Runtime environments.
• Coach senior engineers and document architecture decisions with context, options, and consequences.

Skills

Java

J2EE

REST APIs

SOAP

Architectural design

Spring Boot

Next.js

React

HCL Commerce

WebSphere Commerce (WCS)

Education

Bachelor's degree in Computer Science or related field

Tools

HCL Commerce

WebSphere Commerce (WCS) 8.x

Spring Boot

Next.js

React

GKE/Kubernetes

Job description

We're looking for a seasoned **Solution Architect** with HCL Commerce expertise to drive the design and evolution of a multi-tier B2B commerce platform, steering architecture decisions across legacy Commerce systems, Spring Boot services, and modern Next.js storefronts.Responsibilities* Establish and maintain target and transitional architecture for multi-tier B2B commerce, covering WCS store, business logic, Commerce tools, Spring Boot APIs, and Next.js / React storefront* Direct the design of dual-run / strangler patterns, deciding which journeys stay on WCS and which move to Next.js and services, while ensuring routing, session, catalog, cart, and order consistency, and establishing cut-over and rollback procedures* Create and review solution designs, sequence/integration diagrams, and interface contracts (REST/SOAP), flagging reusability, performance, security, and operability issues before build* Collaborate with product, delivery leads, QA, DevOps, and enterprise/integration teams on requirements, data conversion, integration testing, and cut-over activities* Set coding and design standards for Commerce customization, Spring Boot services, and Next.js storefront to keep squads aligned* Oversee integration with back-end systems (ERP, payments, search, CMS, punchout / customer purchasing systems), keeping a clear separation between Preview (authoring) and Runtime (customer-facing) Commerce environments* Assess designs and pull requests across Commerce, services, and storefront layers, tracking down complex cross-layer defects to their root cause* Provide guidance on capacity planning, caching strategies, search, and failure modes for a high-traffic B2B storefront* Coach senior engineers and leads, and document architecture decisions with context, options, and consequences to preserve continuity* Spot key barriers and use structured problem-solving methods for complex, multi-system challengesRequirements* Bachelor's degree in Computer Science, Engineering, or a related field, or comparable practical experience* 12-20 years in professional software engineering, including at least 5 years serving as an architect or equivalent principal/staff-level designer on large-scale commerce or comparably complex multi-tier systems* At least 8 years working with HCL Commerce and/or IBM WebSphere Commerce (WCS) 8.x, spanning store customization, commands/tasks, tools, catalog/order/user/organization flows, and back-end integration* At least 8 years applying Java / J2EE and OOD principles on large-scale IT systems, with a strong preference for WebSphere Application Server experience* At least 5 years working with Spring / Spring MVC and hands-on Spring Boot architecture, including service boundaries, APIs, resilience, and authentication* At least 5 years designing web services (REST and SOAP), with the ability to specify contracts for other teams to build against* Hands-on production architecture experience with Next.js and React, including routing, data fetching, BFF/API integration, and storefront performance, with TypeScript knowledge preferred* At least 5 years using source control, with Git experience required* Preferred background in architecting B2B commerce solutions, including punchout, org/user models, and contract/pricing complexity* Experience delivering in Agile environments using Atlassian tools (Jira, Bitbucket/Git, Confluence)* Strong written and verbal communication skills for engaging both technical and non-technical stakeholdersNice to have* Familiarity with headless/composable commerce concepts (API-first storefront, BFF, packaged capabilities) and iPaaS tools such as MuleSoft* Exposure to search platforms (Solr or similar), caching solutions (Redis or similar), and CMS-driven storefronts (Optimizely or similar) working alongside a commerce engine* Hands-on experience with cloud platforms (GKE/Kubernetes or equivalent) for storefront and Spring Boot deployments, plus WAS/IHS for Commerce* Solid grasp of security practices, PCI-adjacent payment flows, and session/identity management spanning legacy and modern storefronts* Prior involvement in dual-run initiatives or large-scale commerce migration efforts