Backend Engineer (Go)

In this role at Valuware, you will be responsible for owning high-concurrency services including Cloud Resource Exchange, Compute Barter Network, Bandwidth Exchange, and WebSocket gateways for real-time tracking and chat. Your primary focus will be on building high-performance services that can handle thousands of concurrent connections with sub-100ms latency, facilitating peer-to-peer resource trading at an enterprise scale.

• *Key Responsibilities / Duties:**
• Develop high-performance services using Go (Gin/Fiber).
• Implement WebSocket servers for real-time functionalities such as:
• Live order tracking for hardware shipments.
• Consultant-client chat for M25 engagements.
• Talent location updates for onsite tracking.
• Develop integrations for cloud resource provisioning with AWS, Azure, and GCP APIs.
• Build the Compute Barter matching engine (M8).
• Implement bandwidth utilization metering (M9).
• Design goroutine-safe data structures and implement concurrency patterns.
• Implement rate limiting, circuit breakers, and optimize for high throughput (10k+ RPS per pod).
• Manage WebSocket connection lifecycles, implement graceful shutdown, and connection draining.
• Build gRPC services for inter-service communication.
• Integrate with PostgreSQL using pgx or GORM.
• Implement Redis Pub/Sub for cross-pod messaging.
• Connect to Kafka for event streaming.
• *Required Skills & Qualifications:**
• **Must-Have (5+ years overall):**
• Go: 4+ years experience in concurrency patterns, goroutines, channels.
• WebSockets: 2+ years experience with Gorilla/WebSocket or native net/.
• PostgreSQL: 3+ years experience with GORM or pgx.
• Redis: 3+ years experience in Pub/Sub, rate limiting, session storage.
• REST APIs: 4+ years experience with Gin, Fiber, or standard library.
• Docker: 2+ years experience with multi-stage builds.
• Git: 3+ years experience.
• *Preferred / Good-to-Have Skills:**
• **gRPC:** High-performance service communication.
• **Kafka:** Event streaming for audit logs.
• **Kubernetes:** HPA for WebSocket services.
• **Cloud APIs (AWS/Azure/GCP):** M6 cloud exchange integrations.
• **Prometheus:** Custom metrics export.
• **OpenTelemetry:** Distributed tracing.

This role at Valuware involves a multi-round interview process including:

• Round 1 Python + ML fundamentals: 60 minutes.
• Round 2 LLM / RAG system design: 60 minutes.
• Round 3 NLP / Voice AI: 45 minutes.
• Round 4 Hiring Manager: 45 minutes. In this role at Valuware, you will be responsible for owning high-concurrency services including Cloud Resource Exchange, Compute Barter Network, Bandwidth Exchange, and WebSocket gateways for real-time tracking and chat. Your primary focus will be on building high-performance services that can handle thousands of concurrent connections with sub-100ms latency, facilitating peer-to-peer resource trading at an enterprise scale.
• *Key Responsibilities / Duties:**
• Develop high-performance services using Go (Gin/Fiber).
• Implement WebSocket servers for real-time functionalities such as:
• Live order tracking for hardware shipments.
• Consultant-client chat for M25 engagements.
• Talent location updates for onsite tracking.
• Develop integrations for cloud resource provisioning with AWS, Azure, and GCP APIs.
• Build the Compute Barter matching engine (M8).
• Implement bandwidth utilization metering (M9).
• Design goroutine-safe data structures and implement concurrency patterns.
• Implement rate limiting, circuit breakers, and optimize for high throughput (10k+ RPS per pod).
• Manage WebSocket connection lifecycles, implement graceful shutdown, and connection draining.
• Build gRPC services for inter-service communication.
• Integrate with PostgreSQL using pgx or GORM.
• Implement Redis Pub/Sub for cross-pod messaging.
• Connect to Kafka for event streaming.
• *Required Skills & Qualifications:**
• **Must-Have (5+ years overall):**
• Go: 4+ years experience in concurrency patterns, goroutines, channels.
• WebSockets: 2+ years experience with Gorilla/WebSocket or native net/.
• PostgreSQL: 3+ years experience with GORM or pgx.
• Redis: 3+ years experience in Pub/Sub, rate limiting, session storage.
• REST APIs: 4+ years experience with Gin, Fiber, or standard library.
• Docker: 2+ years experience with multi-stage builds.
• Git: 3+ years experience.
• *Preferred / Good-to-Have Skills:**
• **gRPC:** High-performance service communication.
• **Kafka:** Event streaming for audit logs.
• **Kubernetes:** HPA for WebSocket services.
• **Cloud APIs (AWS/Azure/GCP):** M6 cloud exchange integrations.
• **Prometheus:** Custom metrics export.
• **OpenTelemetry:** Distributed tracing.

This role at Valuware involves a multi-round interview process including:

• Round 1 Python + ML fundamentals: 60 minutes.
• Round 2 LLM / RAG system design: 60 minutes.
• Round 3 NLP / Voice AI: 45 minutes.
• Round 4 Hiring Manager: 45 minutes.