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Software Developer Sr

Dayforce

Location
United States · Canada · EMEA +1
Workplace
Remote
Employment
Full Time
Salary
USD 92,600–165,400/yr
Apply on the employer’s site

Posted 1mo ago

The employer’s full description could not be read from their board. This is a summary of the posting — follow the apply link for the original.

Responsibilities

  • Build and operate high-performance, scalable API services
  • Own services end-to-end (design, delivery, production)
  • Define and improve API SLIs/SLOs, latency, and throughput
  • Drive adoption of event-driven, eventually consistent architecture
  • Decouple core HR data services from downstream systems
  • Design and deliver a new GraphQL service layer
  • Improve scalability via caching, async processing, and data access optimization
  • Implement observability (metrics, logs, tracing) and act on insights
  • Mentor engineers in system design and performance
  • Partner with SRE/DevOps on CI/CD and production operations
  • Use AI tools (Copilot, Claude Code) in day-to-day development

Requirements

  • Strong expertise in C# and modern .NET (Core/.NET 8+)
  • Deep experience building and optimizing RESTful APIs at scale
  • Strong understanding of distributed systems, microservices architecture, and cloud-native design
  • Proven ability to diagnose and improve performance (profiling, bottleneck analysis, memory/CPU optimization)
  • Experience with relational databases (e.g., SQL Server) and query optimization
  • Proficiency with modern JavaScript frameworks (React, Angular, or Vue) for full-stack collaboration
  • Experience with unit, integration, and performance testing frameworks
  • Hands-on experience with concurrency, async programming, and high-throughput systems
  • Solid understanding of API security (OAuth2, OpenID Connect, rate limiting, threat mitigation)
  • Platform & Cloud Experience building and operating services in cloud environments (AWS, Azure, or GCP)
  • Familiarity with containerization and orchestration (Docker, Kubernetes)
  • Experience with messaging/event systems (Kafka, RabbitMQ, or similar)
  • Knowledge of caching layers (Redis, CDN strategies)
  • Modern Engineering Practices Experience with CI/CD pipelines and DevOps practices
  • Strong observability mindset (OpenTelemetry, Prometheus, Grafana, etc.)
  • Familiarity with API gateways and service mesh concepts
  • AI-Assisted Development Practical experience using tools like GitHub Copilot and/or Claude Code to improve productivity
  • Ability to critically evaluate AI-generated code for correctness, security, and performance

Preferred

  • Experience designing and operating high-availability public API platforms at enterprise scale
  • Experience with GraphQL in production environments
  • Background in platform engineering or developer experience (DX)
  • Experience with multi-region deployments and global traffic management

Skills

  • C#
  • .NET
  • .NET Core
  • .NET 8+
  • RESTful APIs
  • JavaScript
  • React
  • Angular
  • Vue
  • SQL Server
  • Docker
  • Kubernetes
  • Kafka
  • RabbitMQ
  • Redis
  • OpenTelemetry
  • Prometheus
  • Grafana
  • OAuth2
  • OpenID Connect
  • GraphQL
  • AWS
  • Azure
  • GCP
  • Copilot
  • Claude Code

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