Senior Node.js Engineer

We are seeking a strong Senior Node.js Developer with good technical expertise, to be responsible for the backend development distributed platform for one of the largest world-leading retailers. You will be working as a key member of this collaborative team with a group of experts recognized around the world. This is an excellent opportunity to play a role as a key contributor in creating the next generation of network-centric distributed and scalable architectures.

• Design, develop, and maintain scalable backend services following clean architecture and best practices
• Build and optimize data models and queries ensuring performance, consistency, and reliability
• Prepare functional requirements and technical/design documentation for new features and system enhancements
• Analyze performance bottlenecks, identify root causes, and propose scalable and cost-effective improvements
• Own the full backend lifecycle—from development and testing to deployment and monitoring
• Work with the incoming support request chain, performing RCA and driving issues to resolution
• Collaborate closely with stakeholders to deliver end-to-end features
• Write clear technical documentation and contribute to architectural decisions and code reviews
• Continuously improve system performance, scalability, and reliability while reducing technical debt
• Take full ownership of testing strategy and execution (unit, integration, and other relevant testing) using Jest and complementary testing approaches in a QA-less environment.

• 5 years of professional software development experience, with a strong focus on backend systems
• Proven hands‑on experience with Node.js and Express.js in production environments
• Strong proficiency in SQL, including schema design, query optimization, and performance tuning
• Practical experience with Postgre
  
  SQL and/or Cockroach DB
• Solid experience building and operating systems on AWS, including:
  Lambda, SQS, Event Bridge, S3, ECR, Certificate Manager, Secrets Manager, Systems Manager
• Experience designing, maintaining, and improving CI/CD pipelines
• Familiarity with observability, monitoring, and log aggregation, particularly Splunk
• Experience designing scalable, reliable, and secure APIs and backend services
• Strong understanding of cloud-native and event-driven architectures
• Ability to work independently with minimal supervision
• Comfortable taking ownership of features from design through production
• Capable of making architectural and technical decisions
• Experience reviewing code and providing constructive feedback
• Proactive in identifying technical debt and proposing improvements
  
  Strong problem‑solving and analytical mindset
• Clear and effective communication skills

• Opportunity to work on bleeding‑edge projects
• Work with a highly motivated and dedicated team
• Benefits package - medical insurance, sports
• Corporate social events
• Well‑equipped office

Grid Dynamics (NASDAQ: GDYN) is a leading provider of technology consulting, platform and product engineering, AI, and advanced analytics services. Fusing technical vision with business acumen, we solve the most pressing technical challenges and enable positive business outcomes for enterprise companies undergoing business transformation. A key differentiator for Grid Dynamics is our 8 years of experience and leadership in enterprise AI, supported by profound expertise and ongoing investment in data, analytics, cloud & Dev Ops, application modernization and customer experience.

Founded in 2006, Grid Dynamics is headquartered in Silicon Valley with offices across the Americas, Europe, and India.