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Job Closed

Principal Staff Software Engineer

  • Source: LinkedIn
  • Apexon
  • On-site
  • Toronto
  • Staff

Job Description

Staff/Principal Software Engineer (Java)

About the Role

We are seeking a Staff/Principal Software Engineer with 10+ years of experience building production-grade distributed systems. This is a hands-on Java backend and system design role focused on architecture, scalable microservices, AWS, and greenfield platform development.

Key Responsibilities:

  • Design and develop scalable distributed systems and microservices .
  • Hands-on development with Java 21, Spring Boot, REST APIs .
  • Lead system design, architecture, scalability, and technical decisions .
  • Build 0-to-1/greenfield platforms with end-to-end ownership.
  • Develop solutions for AI/ML platforms, feature pipelines, or inference services .
  • Work with AWS across compute, storage, networking, and IAM.
  • Use AI-assisted coding tools such as GitHub Copilot, Claude, Cursor, or Windsurf.
  • Mentor engineers and provide technical leadership.

Required Skills:

  • 10+ years software engineering experience.
  • Strong Java 21, Spring Boot, Microservices & System Design .
  • Strong hands-on AWS experience.
  • Experience with distributed systems and cloud-native platforms .
  • AI/ML platform or inference experience.
  • Experience with AI-assisted development tools .
  • Strong architecture, ownership, and mentoring experience.

Nice to Have:

  • Databricks
  • Python
  • Edge/CDN: Cloudflare Workers, Lambda@Edge, Fastly, Akamai
  • JWT, OAuth 2.0, PKI, Token Validation
  • Observability, distributed tracing, and platform engineering.

Skills

  • Java
  • amazon-web-services
  • spring
  • spring-boot
  • Github
  • gitHub-copilot
  • Cursor
  • windsurf
  • azure-databricks
  • databricks
  • Python
  • cloudflare
  • cloudflare-workers
  • aws-lambdaedge
  • fastly
  • akamai
  • oauth
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