What You’ll Build: • System Architecture & Design ● Architect highly scalable backend systems from the ground up ● Define technology choices: frameworks, databases, queues, caching layers ● Evaluate microservices vs monoliths based on product stage ● Design REST, GraphQL, and real-time WebSocket APIs ● Build event-driven systems for asynchronous processing ● Architect multi-tenant systems with strict data isolation ● Maintain architectural documentation and technical specs • Core Backend Services ● Build high-performance APIs for 3D content, XR experiences, analytics, and user interactions ● Create 3D asset processing pipelines for uploads, conversions, and optimization ● Develop distributed job workers for CPU/GPU-intensive tasks ● Build authentication/authorization systems (RBAC) ● Implement billing, subscription, and usage metering ● Build secure webhook systems and third-party integration APIs ● Create real-time collaboration features via WebSockets/SSE • Data Architecture & Databases ● Design scalable schemas for 3D metadata, XR sessions, and analytics ● Model complex product catalogs with variants and hierarchies ● Implement Redis-based caching strategies ● Build search and indexing systems (Elasticsearch/Algolia) ● Architect ETL pipelines and data warehouses ● Implement sharding, partitioning, and replication strategies ● Design backup, restore, and disaster recovery workflows • Scalability & Performance ● Build systems designed for 10x–100x traffic growth ● Implement load balancing, autoscaling, and distributed processing ● Optimize API response times and database performance ● Implement global CDN delivery for heavy 3D assets ● Build rate limiting, throttling, and backpressure mechanisms ● Optimize storage and retrieval of large 3D files ● Profile and improve CPU, memory, and network performance • Infrastructure & DevOps ● Architect AWS infrastructure (EC2, S3, Lambda, RDS, ElastiCache) ● Build CI/CD pipelines for automated deployments and rollbacks ● Use IaC tools (Terraform/CloudFormation) for infra provisioning ● Set up monitoring, logging, and alerting systems ● Use Docker + Kubernetes for container orchestration ● Implement security best practices for data, networks, and secrets ● Define disaster recovery and business continuity plans • Integration & APIs ● Build integrations with Shopify, WooCommerce, Magento ● Design webhook systems for real-time events ● Build SDKs, client libraries, and developer tools ● Integrate payment gateways (Stripe, Razorpay) ● Implement SSO and OAuth for enterprise customers ● Define API versioning and lifecycle/deprecation strategies • Data Processing & Analytics ● Build analytics pipelines for engagement, conversions, and XR performance ● Process high-volume event streams at scale ● Build data warehouses for BI and reporting ● Develop real-time dashboards and insights systems ● Implement analytics export pipelines and platform integrations ● Enable A/B testing and experimentation frameworks ● Build personalization and recommendation systems Technical Stack: • Backend Languages & Frameworks ● Primary: Node.js (Express, NestJS), Python (FastAPI, Django) ● Secondary: Go, Java/Kotlin (Spring) ● APIs: REST, GraphQL, gRPC • Databases & Storage ● SQL: PostgreSQL, MySQL ● NoSQL: MongoDB, DynamoDB ● Caching: Redis, Memcached ● Search: Elasticsearch, Algolia ● Storage/CDN: AWS S3, CloudFront ● Queues: Kafka, RabbitMQ, AWS SQS • Cloud & Infrastructure: ● Cloud: AWS (primary), GCP/Azure (nice to have) ● Compute: EC2, Lambda, ECS, EKS ● Infrastructure: Terraform, CloudFormation ● CI/CD: GitHub Actions, Jenkins, CircleCI ● Containers: Docker, Kubernetes • Monitoring & Operations ● Monitoring: Datadog, New Relic, CloudWatch ● Logging: ELK Stack, CloudWatch Logs ● Error Tracking: Sentry, Rollbar ● APM tools • Security & Auth ● Auth: JWT, OAuth 2.0, SAML ● Secrets: AWS Secrets Manager, Vault ● Security: Encryption (at rest/in transit), TLS/SSL, IAM What We’re Looking For: • Must-Haves ● 5+ years in backend engineering with strong system design expertise ● Experience building scalable systems from scratch ● Expert-level proficiency in at least one backend stack (Node, Python, Go, Java) ● Deep understanding of distributed systems and microservices ● Strong SQL/NoSQL design skills with performance optimization ● Hands-on AWS cloud experience ● Ability to write high-quality production code daily ● Experience building and scaling RESTful APIs ● Strong understanding of caching, sharding, horizontal scaling ● Solid security and best-practice implementation experience ● Proven leadership and mentoring capability • Highly Desirable ● Experience with large file processing (3D, video, images) ● Background in SaaS, multi-tenancy, or e-commerce ● Experience with real-time systems (WebSockets, streams) ● Knowledge of ML/AI infrastructure ● Experience with HA systems, DR planning ● Familiarity with GraphQL, gRPC, event-driven systems ● DevOps/infrastructure engineering background ● Experience with XR/AR/VR backend systems ● Open-source contributions or technical writing ● Prior senior technical leadership experience Technical Challenges You’ll Solve: ● Designing large-scale 3D asset processing pipelines ● Serving XR content globally with ultra-low latency ● Scaling from thousands to millions of daily requests ● Efficiently handling CPU/GPU-heavy workloads ● Architecting multi-tenancy with complete data isolation ● Managing billions of analytics events at scale ● Building future-proof APIs with backward compatibility