Senior Staff Backend Engineer

Overview

Lead technical direction and hands-on development for Tier-1 fulfilment optimization systems that plan, distribute, and fulfill ecommerce orders in real time.

What you'll do

• Design scalable services for order planning, fulfilment optimization, inventory allocation, and network cost management.
• Own architecture across gRPC, Kafka, CPLEX, caching, and multi-region systems.
• Write and review production code in Kotlin and Java.
• Lead design and code reviews for latency-sensitive order flows.
• Drive reliability through resilience, observability, and graceful degradation.
• Partner with Product, Data Science, and Operations on fulfilment initiatives.
• Mentor engineers and establish reusable technical mechanisms.

What you'll need

• Experience designing and operating high-scale distributed systems.
• Hands-on backend coding ability in Kotlin or Java.
• Deep knowledge of system design, APIs, concurrency, data modelling, caching, messaging, gRPC, and REST.
• Experience with high-QPS or Tier-1 SLA systems.
• Experience with Kafka-based event-driven architectures.
• Experience with multi-region systems and resilience engineering.
• Technical leadership experience, including architecture direction and mentoring senior engineers.

Nice to have

• Experience in ecommerce, fulfilment, supply chain, logistics, inventory, order management, or planning systems.
• Experience with optimization systems such as CPLEX or OR-Tools.
• Experience with agentic AI development tools or spec-driven development.

Details

• Work model: Hybrid.
• Location: Bengaluru.