Coupang

Staff Backend Engineer - K8 (Envoy)

Coupang
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4 hours ago
Bengaluru, IndiaStaff+

Responsibilities

  • Architect and build an AI Inference Gateway platform for large-scale machine learning and generative AI workloads.
  • Develop request routing, model endpoint abstraction, traffic shaping, load balancing, failover, caching, and policy enforcement mechanisms.
  • Drive the technical vision and roadmap for secure, reliable AI inference infrastructure across cloud and on-premises environments.
  • Build infrastructure components in Go, Java, or Python with emphasis on performance, resiliency, and operational excellence.
  • Design multi-tenant capabilities for authentication, authorization, quota management, cost attribution, rate limiting, and governance.
  • Partner with ML Platform, Model Serving, Data, and Product Engineering teams to deploy and operate AI workloads.
  • Lead architecture and design reviews, raise engineering standards, and mentor senior engineers across multiple teams.
  • Optimize latency, throughput, and infrastructure efficiency for large-scale inference workloads.
  • Define observability standards using metrics, tracing, logging, and SLO-based operations.
  • Investigate production issues, conduct root-cause analysis, and implement durable architectural solutions.
  • Collaborate with engineering leaders to establish common platform standards and enable AI innovation.

Requirements

  • 8+ years of professional software development experience.
  • 5+ years designing and operating large-scale distributed systems in production.
  • Strong programming expertise in one or more of Go, Java, or Python.
  • Experience building highly available, mission-critical platform or infrastructure services.
  • Experience designing API platforms, service gateways, service meshes, or large-scale networking infrastructure.
  • Deep understanding of distributed systems design and cloud-native technologies.
  • Production experience with Kubernetes and containerized workloads.
  • Experience operating services on AWS, Azure, or GCP.
  • Strong understanding of observability, reliability engineering, capacity planning, and production operations.
  • Preferred experience building AI/ML inference platforms, LLM gateways, model-serving infrastructure, or GPU-accelerated workloads.
  • Preferred expertise with Gateway API, ingress controllers, Istio, Linkerd, Envoy, and platform networking.
  • Preferred experience with vLLM, Triton Inference Server, TensorRT-LLM, Ray Serve, KServe, SGLang, or similar inference-serving technologies.
  • Preferred understanding of high-performance networking, gRPC, HTTP/2, streaming protocols, API gateways, and service proxy architectures.
  • Preferred experience with large-scale traffic management, latency and throughput optimization, distributed data systems, and asynchronous programming.

Benefits

  • Hybrid, onsite, or remote work models are available depending on role requirements.
  • The hybrid model requires at least 3 days in the office per week and allows up to 2 days working from home, depending on role requirements.
  • Some businesses may require additional time in the office.

Tech Stack

AmbassadorApache CassandraApache KafkaArgo CDAWSAzureGoGoogle Cloud PlatformgRPCIstioJavaKubernetesMongoDBPythonRedis
Coupang

About Coupang

5,001-10,000 employees

Coupang builds and operates a South Korea–focused e-commerce marketplace with an end-to-end logistics network (Rocket Delivery), plus food delivery, video streaming, and fintech under brands such as Coupang, Eats, and Play. Revenue comes from first-party retail, third-party marketplace services, advertising, and memberships (Rocket WOW). Founded in 2010, the company is headquartered in Seattle and is publicly listed on the NYSE (CPNG).

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