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Posted 15 July, 2026

Composable Commernce Sr Developer

Zensar Technologies
Pune,Maharashtra,IN,411014 Full Time
Reference: 218_649632_147184_4

What's this role about?

This role entails the Sr Developer to migrate the existing on-premises Online E-commerce Cart, Checkout, Payment Systems and Pricing systems and their day-to-day processes to MACH compliant SaaS Ecommerce Engine.

Hands-on (Must have) 8+ years of working experience:

Skills required to contribute:

Hands-on (Must have) 8+ years of working experience:

  • 8+ years of experience with last 4-5 years in depth, and extensive experience of building secure Checkout micro services solution in Online Retail E-Commerce platforms.

  • Experience on microservices, APIs and a deep understanding of cloud-native services

  • Core AWS services: Expertise in Amazon Elastic Compute Cloud (EC2), Amazon Simple Storage Service (Amazon S3) and AWS Lambda for building and deploying serverless functions is essential

  • Knowledge on Amazon Virtual Private Cloud (Amazon VPC), AWS Identity and Access Management (IAM)

  • Infrastructure as Code (IaC) - proficiency with tools like Terraform

  • Amazon API Gateway - creating, publishing and managing the APIs that allow microservices to communicate with one another.

  • Proven experience of migrating eCommerce applications from Monolithic to MACH based Composable Architecture, with specializing in Checkout micro services.

  • Experience with MACH compliant Ecommerce platform like CommerceTools, Flooid Commerce, Big Commerce is preferred however knowledge on similar MACH/SaaS systems will also be good.

  • Strong understanding of payment Integrations and Fraud prevention tools.

  • Hands-on experience in integrating various Payment systems ex- Digital wallets (Apple Pay, Google Pay), Buy Now Pay later, Net banking.

  • Experience in developing event-based solutions e.g., Kafka, IBM Middleware, AWS Event Bridge

  • Experience with any on-premises ecommerce platforms like Oracle e-commerce is added benefit

  • Experience in building caching solutions e.g. AWS Elastic cache, Redis, MemCache.

  • Containerization - deploying and managing containerized applications using services like Amazon Elastic Kubernetes Service (Amazon EKS) or Amazon Elastic Container Service (Amazon ECS).

  • Database management - working with AWS databases like Amazon DynamoDB, MongoDB for NoSQL needs or Amazon RDS for relation data.

  • Performance monitoring - implementing observability with Amazon CloudWatch to monitor application performance track metrics and set alarms.

  • Good understanding of how an online e-commerce platform works end to end.

  • Experience in data monitoring tools like Dynatrace, AWS Cloudwatch, X ray

  • Proficient in developing scalable No-SQL databases e.g., AWS DynamoDB, MongoDB.

  • Working experience with REST, SOAP is must.

  • Working knowledge on data encryption, tokenization.

  • Working knowledge on securing APIs e.g., using OAuth, Certificates or API keys.

  • Experience of different API Management solutions (Amazon API Gateway, IBM API Connect, MuleSoft, Azure etc.) for Retail Vertical and implemented for different customers

  • Ability to provide strategic direction to business and IT teams on best practices for Ecommerce use cases.

  • Excellent technical, communication, analytical, interpersonal, and presentation skills. Strong client interaction experience.

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