Software Development Engineer; SDE – Java, AWS, Microservices; Onsite in Seattle W2

• Eligibility to work on a W2 basis without sponsorship.
• Must be a US Citizen or Green Card Holder (GC/EAD).

Contract: Long-Term |
W2 Only (No C2C)
Location: Seattle/Redmond, WA – 5 Days Onsite Required
Work Authorization:
US Citizens and Green Card Holders (GC/EAD) only.

We are hiring multiple Senior Software Development Engineers (SDEs) to support a large-scale eCommerce / Order-to-Cash (OTC) platform
, working onsite with a high-performance engineering team. This role is ideal for backend engineers with strong Java, AWS, and microservices experience who enjoy solving complex distributed-system challenges.

• Mandatory Domain: High-Volume eCommerce
• Core Tech:
  Java / Spring Boot, Microservices Architecture, REST APIs
• Cloud: AWS (Lambda, API Gateway, Dynamo
  
  DB, ECS/EKS, SQS/SNS)
• Key Focus:
  Distributed Systems, Order-to-Cash (OTC), Data Structures & Algorithms
• Work Model:
  Onsite – Seattle/Redmond

• Develop and enhance scalable Java/Spring Boot microservices for eCommerce and OTC workflows
  .
• Design and deploy REST APIs, AWS-native services, and event-driven components.
• Improve system reliability, performance, monitoring, and fault tolerance for a high-traffic platform.
• Build automation, CI/CD pipelines, logging, and dashboards.
• Support full lifecycle for complex eCommerce features
  : order management, billing, payments, and reconciliation.
• Collaborate with product, QA, PMs, and architects in a fast-moving onsite engineering environment.
• Participate in code reviews, grooming, sprint planning, and design discussions.

• 5+ years of backend development experience.
• Mandatory professional experience working on a high-volume eCommerce platform.
• Strong hands-on experience with Java, Spring Boot, and REST APIs
  .
• Solid foundation in data structures, algorithms, and system design.
• AWS proficiency: Lambda, API Gateway, S3, Dynamo
  
  DB, RDS, SQS/SNS.
• Experience with microservices, distributed architectures, and asynchronous messaging
  .
• Strong debugging and performance-tuning skills.
• Experience with CI/CD using Git Hub, Jenkins, Docker, or Kubernetes.