Backend Engineer (Swift)

Duties and Responsibilities

• Build and maintain high-performance server-side Swift services and infrastructure
• Design and improve Swift backend ecosystem packages and tooling
• Modernize database drivers and backend integrations
• Develop concurrency-heavy backend systems using modern Swift concurrency patterns
• Improve observability, diagnostics, logging, tracing, and monitoring capabilities
• Work on scalable distributed backend systems and platform services
• Contribute to backend architecture, reliability, and performance optimization
• Collaborate with globally distributed engineering teams across multiple time zones
• Operate independently on large technical initiatives with minimal oversight

Requirements and Qualifications

• Strong professional experience with backend/server-side Swift development
• Deep expertise in Swift concurrency: async/await, actors, task groups, structured concurrency, Sendable, and actor isolation
• Strong backend engineering and distributed systems fundamentals
• Experience building scalable, production-grade backend services
• Experience debugging concurrency, threading, and performance issues
• Strong understanding of networking, asynchronous processing, and backend architecture
• Experience designing maintainable APIs, packages, and infrastructure components
• Comfortable working independently in remote/distributed environments
• Strong problem-solving and debugging skills
• Able to take ownership of work with minimal handholding

Preferred Qualifications

• Experience with SwiftNIO, Vapor, AsyncHTTPClient, or related server-side Swift frameworks
• Experience building database drivers or infrastructure libraries
• Observability experience: OpenTelemetry, metrics, tracing, structured logging, and Prometheus/Grafana
• Experience with distributed systems and event-driven architectures
• Experience contributing to open-source projects
• Experience working on platform engineering or infrastructure engineering teams
• Linux backend deployment experience
• CI/CD and cloud infrastructure experience
• Experience optimizing backend system performance and reliability
• Prior experience working within the Swift open-source ecosystem is a strong plus